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PLX™ Series
▲ PLX 1202
▲ PLX 1602
▲ PLX 2402
▲ PLX 3002
TD-000078-00
TD-000078-00
+ PLX 1202
+ PLX 1602
+ PLX 2402
+ PLX 3002
PLX SERIES
SERVICE MANUAL
PLX 1202
PLX 1602
PLX 2402
PLX 3002
QSC Technical Services
Wats: I -%OO-772-2034
Local: 1-714-957-7150
Fax: 1-714-754-6173
QSC Technical Support BBS
I -714-668-7567
1-800-856-6003
QSC Audio Products, Inc.
1675 MacArthur Blvd.
Costa Mesa, CA 92626 http://www.qscaudio.com
Table of Contents
PLX Product Specifications ................................................................
Introduction ........................................................................................
Test and Calibration ............................................................................
Troubleshooting PLX ...........................................................................
PLX Parts List
PLX 1202 PCB Assembly (120V)
PLX 1202 PCB Assembly (230V)
.....................................................
.....................................................
PLX 1202 Chassis Assembly (120V)
PLX 1202 Chassis Assembly (230V)
................................................
................................................
PLX 1602 PCB Assembly (120V)
PLX 1602 PCB Assembly (230V)
.....................................................
.....................................................
PLX 1602 Chassis Assembly (120V)
PLX 1602 Chassis Assembly (230V)
................................................
................................................
PLX 2402 PCB Assembly (120V)
PLX 2402 PCB Assembly (230V)
.....................................................
.....................................................
PLX 2402 Chassis Assembly (120V)
PLX 2402 Chassis Assembly (230V)
................................................
................................................
PLX 3002 PCB Assembly (120V)
PLX 3002 PCB Assembly (230V)
.....................................................
.....................................................
PLX 3002 Chassis Assembly (120V)
PLX 3002 Chassis Assembly (230V)
................................................
................................................
PLX Semiconductors ..............................................................................
Chassis Drawings ...................................................................................
Schematics
PLX 1202 Main PCB Schematics
PLX 1602 Main PCB Schematics
.....................................................
.....................................................
PLX 2402 Main PCB Schematics
PLX 3002 Main PCB Schematics
.....................................................
.....................................................
PLX Series PCB Circut Board Drawings .................................................
1
2
3
13
57
62
67
72
73
42
45
48
49
35
38
41
41
50
53
28
31
34
34
23
25
28
28
PLX 1202
PLX 1602
PLX 2402
PLX Product Specifications
PLX 3002
PLXI 202 PLXI 602 PLX2402 PLX3002
Output Power (per channel):
Continuous Average Output Power both channels driven:
8 ohms, 2OHz - 2OkHz, 0.03% T H D 200 watts
4 ohms, 2OHz - 2OkHz, 0.05% T H D 325 watts
Con0nuous Average Output Power bridged mono ooeration:
8 ohms, 2OHz - 2OkHz, 0.1% THD
Voltage Gain (dB)
Sensitivity (for rated power @ 8 ohms)
Distortion
Frequency Response (LF Switched Off)
Damping Factor (1 kHz and Below)
Noise
Input Impedance
Dimensions
300 waKs 425 watts 550 watts
500 watts 700 watts 900 watts
700 iatts 1100 watts 1500 watts
32 32 32
1.00vrms 1.20 Vrms 1.50 Vrms
SMPTE-IM Less than 0.01%
2OHz to 2OkHz, +I-0.2dB
8Hz to 5OkHz, +Ol-3dB
Greater than 500
106dB below rated output (20 Hz to 20 kHz)
6k unbalanced, 12k balanced
2000 watts
32
1.70
vrms
Faceplate Width
Faceplate Height
Chassis Depth
Weight
Net, Lbs/kg
Standard 19” Rack Mounting
3.Y
3.r
13.2Y
13.2v
2119.5 2119.5
3.5” 3 . Y
13.2Y
13.2Y
2119.5 2119.5
2
I n t r o d u c t i o n
This manual is prepared to assist service personnel with the repair and calibration of PLX power amplifiers . The procedures described in this manual require advanced technical experience and sophisticated audio test equipment.
CAUTION: To reduce the risk of electric shock, do not remove the cover. No user-serviceable parts inside. Refer servicing to qualified personnel.
CAUTION
WARNING: To prevent fire or electric shock, do not expose this equipment to rain or moisture.
Documentation
This manual contains schematics, printed circuit board (PCB) drawings, parts lists, and mechanical assembly drawings. This information should be used in conjunction with the test and troubleshooting guide.
The electrical and electronic components are identified by circuit identification numbers on the schematics and the parts list. The test & troubleshooting sections refer to designations shown in the schematics.
Equivalent Parts
Although many of the electronic components used in this product may be available from electronic suppliers, some components are specially tested and approved by WC. A product repaired with non-WC supplied components may not meet factory specifications.
Repairs performed using non-QSC parts may void the product warranty. men in doubt, you may contact QSC Technical Services for assistance.
Parts orders to QSC should include the product model number, the part description, and the QSC part number (from the parts list in this manual). Parts will be shipped via UPS,
F.O.B. Costa Mesa, California. Shipping, handling and COD charges may be added to the cost of the parts.
Factory Repair
It may become necessary to return a product to the factory for repair. Call QSC Technical
Services for return instructions. QSC Technical Services may be reached at (800)
772-2834.
Test and Troubleshooting Equipment
- Distortion Analyzer capable of 0.01% THD+N
- High Power Load Bank (8,4,8 2 ohms)
Function Generator 8 Digital Multimeter
2OMHz Oscilloscope
Variac (0-140 VAC, 30-40A)
-Audio Precision - System One
+ Thermometer
T e s t & C a l i b r a t i o n
PLX 1202 Test Procedure
. SET-UP
1. Connect a test load to the output terminals of the amplifier.
2. Make sure Mode Switches 1 - 10 are in the default position (1 on, 10 on, all others off).
3. Connect a distortion analyzer with a resolution of O.Ol%, 20-2OkHz (or better) to the output terminals of the amplifier. Enable the 8OkHz low pass filter.
4. Connect a dual-channel oscilloscope to the following test points:
Chl - a IOX (vertical sensitivity - 2V/cm) scope probe to the channel speaker output.
Ch2 - a IX scope probe (vertical sensitivity - O.lV/cm) to the distortion analyzer output.
5. Set amp gain pots fully clockwise and turn on power switch.
6. Connect the output of the signal generator to the input terminals of the amplifier and select an output of 1.30 VRMS, 1 kHz sine wave.
7. Plug the amplifier into a variac and set up an AC line current monitor.
. POWER UP 8 MUTE DELAY TEST
CAUTION: To avoid damage to the main printed circuit board, place a 50 ohm 225W resistor (100 ohm,
240VAC) in series with the high (+) lead on the AC cable during variac ramp up. If the switching power supply has a shorted device at initial power up, this AC resistor pad will help prevent undue damage. After the amplifier has been fully powered up via the variac, confirm that the amplifier has achieved stable operation during idle. Remove AC power from the amplifier and disconnect the series resistor for normal operation. Continue with the test & calibration process.
I. Slowly raise the variac voltage and watch for excessive current draw (line current greater than 0.5A a.c. at 60 Volts). This is slightly less for 240V. Pause at 9OVAC
(2OOVAC European) for three seconds until the mute I protect circuit disengages.
Continue to 12OVAC (240V European).
2. Verify that the fan is operating at low speed.
3. Turn the power switch off and on a few times to verify the 3 second power-up muting delay.
l
CHANNEL OUTPUT
I. Look for amplified signal on the scope for channel 1. Switch the input signal and scope to channel 2 and repeat output test. Check for noisy / contaminated gain pots by observing general instability on the distortion waveform while adjusting the gain control levels.
2. Select an 8 ohm load and confirm that this amplifier is producing 200 watts at 1 kHz just below the point of clipping. Check both channels.
l
BRIDGE MODE
1. Turn the power switch off.
2. Set Mode Switch #7 in the on position. The gain control, limiter, and filter switch positions on CH2 are disabled with Mode Switch #7 on.
3. Set load to both red output binding posts (CHI positive and CH2 negative).
4. Apply a 1.30 VRMS, 1 kHz sinewave input to channel I of the amplifier. Check the power and verify that the output does not immediately collapse. Check for 700 watts at 8 ohms.
4
5. Turn power off and place the amplifier back into the Stereo mode with output loads connected to each channel.
. BIAS
1. Let the amplifier cool down to room temperature.
2. With an input amplitude of 1.3OVrms increase the input frequency to 2OkHz. Reduce the input signal 20dB (80%) from full output. Adjust the crossover trimpot VR43 (CHl) and
VR166 (CH2) for about a 4OOmVpk-pk crossover spike protruding from the noise trace on the oscilloscope. It will be necessary to have the oscilloscope measure unfiltered distortion from the amplifier in order to see the crossover spike. It is necessary to disable the 80kHz lowpass filter on the analyzer for this test. Further trim so that the total distortion for that channel is less than 0.1% THD+N.
3. With the trim settings achieved, and with no signal plugged into the amplifier and with an
8 ohm load, verify that the AC idle current from the AC service is no more than 1 .O
amperes.
4. Let the amplifier cool down and check channel 2.
. SHORT CIRCUIT CURRENT
1. Select a 2 ohm load and apply a 1.3Vrms sinewave (1 kHz) input signal to both channels of the amplifier. Ensure that power is on and that the gain controls are fully up.
2. While the amplifier is producing power into the loads, apply a short to the output binding posts of each channel. In other words, apply a jumper between the red and black binding posts of each channel. Once this is done, combined AC line current draw for both channels should be no greater than 13A ac. This is with a 120 volt AC service to the amplifier. Current may be lower if AC line voltage is lower.
3. Remove the short from each channel and verify that the channels recover in to 2 ohm loads. The output should not experience any hang up and a full sinewave should be present just as it was before a short was applied for this test.
4. If the amplifier does not pass any of the above steps, troubleshoot the current limit section of the amplifier. If steps 2, 3, and 4 above pass, continue to the next test
FREQUENCY RESPONSE.
l
FREQUENCY RESPONSE
1, Set load to 8 ohms and scale the input generator to gain 1 watt of power from the amplifier on each channel. Gain controls on the amplifier should be fully up.
2. Check frequency response from 2OHz to 20kHz (+I- 0.2OdB) by sweeping random frequencies between these extremes. This is done by verifying the same voltage amplitude at each of the frequencies selected (within 2OHz to 2OkHz). Check both channels.
l
POWER vs. DISTORTION TEST
I. Check to ensure that both channels will produce rated power at 2OHz, 2KHz, and 20kHz.
into an 8 ohm load.
2. While verifying rated power, check that at all frequencies the distortion measurement is less than or equal to 0.03% THD.
l
THERMAL TEST
1. Set input frequency to 1 KHz and short both channels while they are producing power into a load.
2. Apply a short to the output of each channel.
3. AC line current draw should be about
11 - 13.5 amperes for both channels. As the amplifier gets hot, there will be some current drift upwards and the fan speed will increase. This is not a problem as long as the case temperature on the output transistors does not exceed 105 degrees C.
4. Verify that the NTC circuit causes thermal shutdown after an extended period.
5. When thermal shutdown occurs, verify AC idle current of less that 0.90 amperes l
C M T E S T
1. Select an 8 ohm load and confirm that this amplifier is producing rated power.
2. Check the Common Mode of the amplifier by inserting a 1/4” input jack halfway into each channel and observe about 6 dB of output voltage reduction. There will also be a 180 degree phase inversion at the output of the channel under test.
l
OUTPUT NOISE
1. Set the amplifier gain controls all the way up, with a 1 kHz 1.3OVrms sinewave input signal. Note the output level at full power just below clipping. Adjust gain if needed.
2. Remove the input signal connector from the amplifier and measure the residual noise level produced into the load by the amplifier. The noise signal should be 107 dB down from the full output power point measured. A signal to noise ratio should be better than or equal to 107dB. Check both channels.
l
FINAL CHECK
This completes the amplifier test procedure for this model. Inspect the amplifier for mechanical defects. Inspect the solder connections. Reassemble the amplifier and verify the amplifier’s operation before returning the product to service.
PLX 1602 Test Procedure
. SET-UP
1.
Connect a test load to the output terminals of the amplifier.
2.
Make sure Mode Switches 1 - 10 are in the default position (1 on, 10 on, all others off)
3.
Connect a distortion analyzer with a resolution of O.Ol%, 20-20kHz (or better) to the output terminals of the amplifier. Enable the 80kHz low pass filter.
4.
Connect a dual-channel oscilloscope to the following test points:
Chl - a 1 OX (vertical sensitivity - 2V/cm) scope probe to the channel speaker output.
Ch2 - a IX scope probe (vertical sensitivity - O.lV/cm) to the distortion analyzer output.
5.
6.
Set amp gain pots fully clockwise and turn on power switch.
Connect the output of the signal generator to the input terminals of the amplifier and select an output of 1.30 VRMS, 1 kHz sine wave.
7.
Plug the amplifier into a variac and set up an AC line current monitor.
l
POWER UP 8 MUTE DELAY TEST
CAUTION: To avoid damage to the main printed circuit board, place a 50 ohm 225W resistor (100 ohm,
240VAC) in series with the high (+) lead on the AC cable during variac ramp up. If the switching power supply has a shorted device at initial power up, this AC resistor pad will help prevent undue damage. After the amplifier has been fully powered up via the variac, confirm that the amplifier has achieved stable operation during idle. Remove AC power from the amplifier and disconnect the series resistor for normal operation. Continue with the test & calibration process.
Slowly raise the variac voltage and watch for excessive current draw (line current greater than 0.5A a.c at 60 Volts). T/I;s is s/;ghf/y less for 240V. Pause at 9OVAC
(2OOVAC European) for three seconds until the mute I protect circuit disengages.
Continue to 12OVAC (24OV European).
Verify that the fan is operating at low speed.
6
3. Turn the power switch off and on a few times to verify the 3 second power-up muting delay.
. CHANNEL OUTPUT
1. Look for amplified signal on the scope for channel 1. Switch the input signal and scope to channel 2 and repeat output test. Check for noisy / contaminated gain pots by observing general instability on the distortion waveform while adjusting the gain control levels.
2. Select an 8 ohm load and confirm that this amplifier is producing 300 watts at 1 kHz just below the point of clipping. Check both channels.
. BRIDGE MODE
1. Turn the power switch off.
2. Set Mode Switch #7 in the on position. The gain control, limiter, and filter switch positions on CH2 are disabled with Mode Switch #7 on.
3. Set load to both red output binding posts (CHI positive and CH2 negative).
4. Apply a 1.30 VRMS, 1 kHz sinewave input to channel 1 of the amplifier. Check the power and verify that the output does not immediately collapse. Check for 1000 watts at 8 ohms.
5. Turn power off and place the amplifier under test back into the Stereo mode with output loads connected to each channel.
l
B I A S
I. Let the amplifier cool down to room temperature.
2. With an input amplitude of 1.3OVrms increase the input frequency to 20kHz. Reduce the input signal 20dB (80%) from full output. Adjust the crossover trimpot VR43 (CHl) and
VR166 (CH2) for about a 4OOmVpk-pk crossover spike protruding from the noise trace on the oscilloscope. It will be necessary to have the oscilloscope measure unfiltered distortion from the amplifier in order to see the crossover spike. It is necessary to disable the 80kHz lowpass filter on the analyzer for this test. Further trim so that the total distortion for that channel is less than 0.1% THD+N.
3. With the trim settings achieved, and with no signal plugged into the amplifier and with an
8 ohm load, verify that the AC idle current from the AC service is no more than 1 .O
amperes.
4. Let the amplifier cool down and check channel 2.
l
SHORT CIRCUIT CURRENT
1. Select a 2 ohm load and apply a 1.3Vrms sinewave (1 kHz) input signal to both channels of the amplifier. Ensure that power is on and that the gain controls are fully up.
2. While the amplifier is producing power into the loads, apply a short to the output binding posts of each channel.
In other words, apply a jumper between the red and black binding posts of each channel. Once this is done, combined AC line current draw for both channels should be no greater than 13A ac. This is with a 120 volt AC service to the amplifier. Current may be lower if AC line voltage is lower.
3. Remove the short from each channel and verify that the channels recover in to 2 ohm loads. The output should not experience any hang up and a full sinewave should be present just as it was before a short was applied for this test.
4. If the amplifier does not pass any of the above steps, troubleshoot the current limit section of the amplifier. If steps 2, 3, and 4 above pass, continue to the next test
FREQUENCY RESPONSE.
l
FREQUENCY RESPONSE
I.
Set load to 8 ohms and scale the input generator to gain 1 watt of power from the amplifier on each channel. Gain controls on the amplifier should be fully up.
2. Check frequency response from 2OHz to 20kHz (+I- 0.2OdB) by sweeping random frequencies between these extremes. This is done by verifying the same voltage amplitude at each of the frequencies selected (within 2OHz to 20kHz). Check both channels.
l
POWER vs. DISTORTION TEST
1. Check to ensure that both channels will produce rated power at 2OHz, 2KHz, and 20kHz.
into an 8 ohm load.
2. While verifying rated power, check that at all frequencies the distortion measurement is less than or equal to 0.03% THD.
l
THERMAL TEST
1. Set input frequency to 1 KHz and short both channels while they are producing power into a load.
2. Apply a short to the output of each channel.
3. AC line current draw should be about II - 13.5 amperes for both channels. As the amplifier gets hot, there will be some current drift upwards and the fan speed will increase. This is not a problem as long as the case temperature on the output transistors does not exceed 105 degrees C.
4. Verify that the NTC circuit causes thermal shutdown after an extended period.
5. When thermal shutdown occurs, verify AC idle current of less that 0.90 amperes.
l
C M T E S T
1. Select an 8 ohm load and confirm that this amplifier is producing rated power.
2. Check the Common Mode of the amplifier by inserting a 1/4” input jack halfway into each channel and observe about 6 dB of output voltage reduction. There will also be a 180 degree phase inversion at the output of the channel under test.
l
OUTPUT NOISE
I. Set the amplifier gain controls all the way up, with a 1 kHz 1.3OVrms sinewave input signal. Note the output level at full power just below clipping. Adjust gain if needed.
2. Remove the input signal connector from the amplifier and measure the residual noise level produced into the load by the amplifier. The noise signal should be 107 dB down from the full output power point measured. A signal to noise ratio should be better than or equal to 107dB. Check both channels.
l
FINAL CHECK
This completes the amplifier test procedure for this model. Inspect the amplifier for mechanical defects. inspect the solder connections. Reassemble the amplifier and veri@ the amplifier’s operation before returning the product to service.
PLX 2402 Test Procedure
l
S E T - U P
1. Connect a test load to the output terminals of the amplifier.
2. Make sure Mode Switches 1 - 10 are in the default position (1 on, 10 on, all others off).
3. Connect a distortion analyzer with a resolution of O.Ol%, 20-20kHz (or better) to the output terminals of the amplifier. Enable the 80kHz low pass filter.
4. Connect a dual-channel oscilloscope to the following test points:
Chl - a 1OX (vertical sensitivity - 2V/cm) scope probe to the channel speaker output.
Ch2 - a IX scope probe (vertical sensitivity - 0. IV/cm) to the distortion analyzer output.
5. Set amp gain pots fully clockwise and turn on power switch.
6. Connect the output of the signal generator to the input terminals of the amplifier and select an output of 1.50 VRMS 1 kHz sine wave.
7. Plug the amplifier into a variac and set up an AC line current monitor.
l
POWER UP & MUTE DELAY TEST
CAUTION: To avoid damage to the main printed circuit board, place a 50 ohm 225W resistor (100 ohm,
240VAC) in series with the high (+) lead on the AC cable during variac ramp up. if the switching power supply has a shorted device at initial power up, this AC resistor pad will help prevent undue damage. After the amplifier has been fully powered up via the variac, confirm that the amplifier has achieved stable operation during idle. Remove AC power from the amplifier and disconnect the series resistor for normal operation. Continue with the test & calibration process.
1. Slowly raise the variac voltage and watch for excessive current draw (line current greater than 0.5A a.c at 60 Volts). This is slight/y /ess fof 24OV. Pause at 9OVAC
(2OOVAC European) for three seconds until the mute / protect circuit disengages.
Continue to 12OVAC (24OV European).
2. Verify that the fan is operating at low speed.
3. Turn the power switch off and on a few times to verify the 3 second power-up muting delay.
l
CHANNEL OUTPUT
I. Look for amplified signal on the scope for channel 1. Switch the input signal and scope to channel 2 and repeat output test. Check for noisy / contaminated gain pots by observing general instability on the distortion waveform while adjusting the gain control levels.
2. Select an 8 ohm load and confirm that this amplifier is producing 425 watts at 1 kHz just below the point of clipping. Check both channels.
l
BRIDGE MODE
1. Turn the power switch off.
2. Set Mode Switch #7 in the on position. The gain control, limiter, and filter switch positions on CH2 are disabled with Mode Switch #7 on.
3. Set load to both red output binding posts (CHI positive and CH2 negative).
4. Apply a 1.30 VRMS, 1 kHz sinewave input to channel 1 of the amplifier. Check the power and verify that the output does not immediately collapse. Check for 1500 watts at 8 ohms.
5. Turn power off and place the amplifier under test back into the Stereo mode with output loads connected to each channel.
l
B I A S
1. Let the amplifier cool down to room temperature.
2. With an input amplitude of 1.5OVrms, increase the input frequency to 2OkHz. Reduce the input signal 20dB (80%) from full output. Adjust the crossover trimpot VR43 (CHl) and
VR166 (CH2) for about a 4OOmVpk-pk crossover spike protruding from the noise trace on the oscilloscope. It will be necessary to have the oscilloscope measure unfiltered distortion from the amplifier in order to see the crossover spike. It is necessary to
disable the 80kHz lowpass filter on the analyzer for this test. Further trim so that the total distortion for that channel is less than 0.1% THD+N,
3. With the trim settings achieved, and with no signal plugged into the amplifier and with an
8 ohm load, verify that the AC idle current from the AC service is no more than 1 .O
amperes.
4. Let the amplifier cool down and check channel 2.
l
SHORT CIRCUIT CURRENT
1. Select a 2 ohm load and apply a 1.3Vrms sinewave (1 kHz) input signal to both channels of the amplifier. Ensure that power is on and that the gain controls are fully up.
2. While the amplifier is producing power into the loads, apply a short to the output binding posts of each channel. In other words, apply a jumper between the red and black binding posts of each channel. Once this is done, combined AC line current draw for both channels should be no greater than 13A ac. This is with a 120 volt AC service to the amplifier. Current may be lower if AC line voltage is lower.
3. Remove the short from each channel and verify that the channels recover in to 2 ohm loads. The output should not experience any hang up and a full sinewave should be present just as it was before a short was applied for this test,
4. If the amplifier does not pass any of the above steps, troubleshoot the current limit section of the amplifier. If steps 2, 3, and 4 above pass, continue to the next test
FREQUENCY RESPONSE.
l
FREQUENCY RESPONSE
1. Set load to 8 ohms and scale the input generator to gain 1 watt of power from the amplifier on each channel. Gain controls on the amplifier should be fully up.
2. Check frequency response from 2OHz to 20kHz (+/- 0.2OdB) by sweeping random frequencies between these extremes. This is done by verifying the same voltage amplitude at each of the frequencies selected (within 2OHz to 20kHz). Check both channels.
l
POWER vs. DISTORTION TEST
1. Check to ensure that both channels will produce rated power at 2OHz, 2KHz, and 20kHz.
into an 8 ohm load.
2. While verifying rated power, check that at all frequencies the distortion measurement is less than or equal to 0.03% THD.
l
THERMAL TEST
1. Set input frequency to 1 KHz and short both channels while they are producing power into a load.
2. Apply a short to the output of each channel.
3. AC line current draw should be about 11 13.5 amperes for both channels. As the amplifier gets hot, there will be some current drift upwards and the fan speed will increase, This is not a problem as long as the case temperature on the output transistors does not exceed 105 degrees C.
4. Verify that the NTC circuit causes thermal shutdown after an extended period.
5, When thermal shutdown occurs, verify AC idle current of less that 0.90 amperes.
l
C M T E S T
I. Select an 8 ohm load and confirm that this amplifier is producing rated power.
2. Check the Common Mode of the amplifier by inserting a 114” input jack halfway into each channel and observe about 6 dB of output voltage reduction. There will also be a 180 degree phase inversion at the output of the channel under test.
9
10 l
OUTPUT NOISE
1. Set the amplifier gain controls all the way up, with a I kHz 1.5OVrms sinewave input signal. Note the output level at full power just below clipping. Adjust gain if needed.
2. Remove the input signal connector from the amplifier and measure the residual noise level produced into the load by the amplifier. The noise signal should be 107 dB down from the full output power point measured. A signal to noise ratio should be better than or equal to 107dB. Check both channels.
l
FINAL CHECK
This completes the amplifier test procedure for this model. Inspect the amplifier for mechanical defects. Inspect the solder connections. Reassemble the amplifier and verify the amplifier’s operation before returning the product to service,
PLX 3002 Test Procedure
l
S E T - U P
1. Connect a test load to the output terminals of the amplifier.
2. Make sure Mode Switches 1 - 10 are in the default position (1 on, 10 on, all others off).
3. Connect a distortion analyzer with a resolution of O.Ol%, 20-20kHz (or better) to the output terminals of the amplifier. Enable the 80kHz low pass filter.
4. Connect a dual-channel oscilloscope to the following test points:
Chl - a 1OX (vertical sensitivity - 2V/cm) scope probe to the channel speaker output.
Ch2 - a 1X scope probe (vertical sensitivity - O.lV/cm) to the distortion analyzer output.
5. Set amp gain pots fully clockwise and turn on power switch.
6. Connect the output of the signal generator to the input terminals of the amplifier and select an output of 1.70 VRMS, 1 kHz sine wave.
7. Plug the amplifier into a variac and set up an AC line current monitor.
. POWER UP 8 MUTE DELAY TEST
CAUTION: To avoid damage to the main printed circuit board, place a 50 ohm 225W resistor (100 ohm,
240VAC) in series with the high (+) lead on the AC cable during variac ramp up. If the switching power supply has a shorted device at initial power up, this AC resistor pad will help prevent undue damage. After the amplifier has been fully powered up via the variac, confirm that the amplifier has achieved stable operation during idle. Remove AC power from the amplifier and disconnect the series resistor for normal operation. Continue with the test & calibration process.
1. Slowly raise the variac voltage and watch for excessive current draw (line current greater than 0.5A a.c. at 60 Volts). TIG.s is s/ight/y less for 24UV. Pause at 9OVAC
(2UOVAC European) for three seconds until the mute / protect circuit disengages.
Continue to 12OVAC (240V European).,
2. Verify that the fan is operating at low speed.
3. Turn the power switch off and on a few times to verify the 3 second power-up muting delay.
l
CHANNEL OUTPUT
1. Look for amplified signal on the scope for channel 1. Switch the input signal and scope to channel 2 and repeat output test. Check for noisy I contaminated gain pots by observing general instability on the distortion waveform while adjusting the gain control levels.
2. Select an 8 ohm load and confirm that this amplifier is producing 550 watts at 1 kHz just below the point of clipping. Check both channels.
l
BRIDGE MODE
1. Turn the power switch off.
2. Set Mode Switch #7 in the on position. The gain control, limiter, and filter switch positions on CH2 are disabled with Mode Switch # 7 on.
3. Set load to both red output binding posts (CHI positive and CH2 negative).
4. Apply a 1.30 VRMS,
1 kHz sinewave input to channel 1 of the amplifier. Check the power and verify that the output does not immediately collapse. Check for 2000 watts at 8 ohms.
5. Turn power off and place the amplifier under test back into the Stereo mode with output loads connected to each channel.
l
B I A S
1.
Let the amplifier cool down to room temperature.
2. With an input amplitude of 1.7OVrms increase the input frequency to 20kHz. Reduce the input signal 20dB (80°h) from full output. Adjust the crossover trimpot VR43 (CHI) and
VRl66 (CH2) for about a 4OOmVpk-pk crossover spike protruding from the noise trace on the oscilloscope. It will be necessary to have the oscilloscope measure unfiltered distortion from the amplifier in order to see the crossover spike. It is necessary to disable the 80kHz lowpass filter on the analyzer for this test. Further trim so that the total distortion for that channel is less than 0.1% THD+N.
3, With the trim settings achieved, and with no signal plugged into the amplifier and with an
8 ohm load, verify that the AC idle current from the AC service is no more than 1 .O
amperes.
4. Let the amplifier cool down and check channel 2.
l
SHORT CIRCUIT CURRENT
1. Select a 2 ohm load and apply a 1.3Vrms sinewave (1 kHz) input signal to both channels of the amplifier. Ensure that power is on and that the gain controls are fully up.
2, While the amplifier is producing power into the loads, apply a short to the output binding posts of each channel. In other words, apply a jumper between the red and black binding posts of each channel. Once this is done, combined AC line current draw for both channels should be no greater than
13A ac. This is with a 120 volt AC service to the amplifier. Current may be lower if AC line voltage is lower.
3. Remove the short from each channel and verify that the channels recover in to 2 ohm loads. The output should not experience any hang up and a full sinewave should be present just as it was before a short was applied for this test.
4. If the amplifier does not pass any of the above steps, troubleshoot the current limit section of the amplifier. If steps 2, 3, and 4 above pass, continue to the next test
FREQUENCY RESPONSE.
l
FREQUENCY RESPONSE
1. Set load to 8 ohms and scale the input generator to gain I watt of power from the amplifier on each channel. Gain controlson the amplifier should be fully up.
2. Check frequency response from 2OHz to 20kHz (+I- 0.2OdB) by sweeping random frequencies between these extremes. This is done by verifying the same voltage amplitude at each of the frequencies selected (within 2OHz to 20kHz). Check both channels.
11
12 l
POWER vs. DISTORTION TEST
1. Check to ensure that both channels will produce rated power at 2OH2, 2KHz, and 20kHz.
into an 8 ohm load.
2. While verifying rated power, check that at all frequencies the distortion measurement is less than or equal to 0.03% THD.
l
THERMAL TEST
I. Set input frequency to 1 KHz and short both channels while they are producing power into a load.
2. Apply a short to the output of each channel.
3. AC line current draw should be about 11 - 13.5 amperes for both channels. As the amplifier gets hot, there will be some current drift upwards and the fan speed will increase. This is not a problem as long as the case temperature on the output transistors does not exceed 105 degrees C.
4. Verify that the NTC circuit causes thermal shutdown after an extended period.
5. When thermal shutdown occurs, verify AC idle current of less that 0.90 amperes.
l
CM T E S T
1. Select an 8 ohm load and confirm that this amplifier is producing rated power.
2. Check the Common Mode of the amplifier by inserting a 114” input jack halfway into each channel and observe about 6 dB of output voltage reduction. There will also be a 180 degree phase inversion at the output of the channel under test.
l
OUTPUT NOISE
1. Set the amplifier gain controls all the way up, with a 1 kHz 1.7OVrms sinewave input signal. Note the output level at full power just below clipping. Adjust gain if needed.
2. Remove the input signal connector from the amplifier and measure the residual noise level produced into the load by the amplifier. The noise signal should be 107 dB down from the full output power point measured. A signal to noise ratio should be better than or equal to 107dB. Check both channels.
l
FINAL CHECK
This completes the amplifier test procedure for this model. Inspect the amplifier for mechanical defects. Inspect the solder connections. Reassemble the amplifier and verify the amplifier’s operation before returning the product to service.
T r o u b l e s h o o t i n g
PLX 1202
l
PLX 1602
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PLX 2402
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PLX 3002
Power Supply - - Replacing Blown IGBTs.
In order to improve EMI performance, reduce cost, and increase current capacity, the PLX IGBTs are driven by an active, direct coupled integrated circuit, rather than a gate drive transformer. IGBT or driver failure should be rare (when correctly assembled) but when the IGBT’s blow, it usually damages the following parts:
CHECKLIST AFTER BLOWN IGBT’S
Q96, Q97, (IGBT’s generally fail in pairs)
D78, D79, R358, R359, gate drive coupling comonents, check after removing blown IGBT’s.
Ul8, lR2110 high-side gate driver, Fault current when low-side IGBT shorts to upper rail. Such currents also typically damage the gate coupling parts noted above.
Ul9, 3525 controller, Blows from currents shorted thru Ul8, or possibly by overvoltage on the supply rail
SOMETIMES Ul4, 556, powered from 5V output of 3525, which may fail high when 3525 fails.
RARELY Ul3, which has fairly high supply voltage ratings.
PROBABLE CAUSES OF MASSIVE IGBT FAULTS
SHORTS IN CONTROL CIRCUIT.
The parts operate well within their ratings and should hold up well in the field. The usual cause of failure is when both IGBT’s turn on at once, shorting Pri-Hi to Pri-Lo. This occurs when something causes the drive signal to one part to remain on when the other part is supposed to turn on. Shorts from solder or debris are one obvious cause.
SHORTS IN THE LOAD.
Although there is peak current shutdown, shorts in the power amplifier transistors or secondary-side supply components can cause currents to increase too quickly to prevent damage.
OVERVOLTAGE ON THE BIAS SUPPLY.
If the TOP-210 bias supply fails to operate, no harm occurs, the unit simply does not operate.
However, open circuit (missing part) in several key components can cause the Bias supply voltage to be much too high, This blows the 2110 and thus the IGBT’s.
QUICK TEST OF BIAS SUPPLY.
Ramp the AC voltage up slowly to 25% of regular voltage (30V for 12OV unit). If the bias supply is working normally, the green “power” LED should come on between 30 and 35Vz with its usual, steady “half-brighr start-up level. If the LED comes on at 2OV, or not until 5OV, or blinks, DO NOT RAISE VOLTAGE PAST 60V until you have measured the bias voltage. The switching will not start until you reach 9OV, so you can save the IGBT’s from blowing.
Confirm that bias voltage at Cl38 is 18-19V. Open or missing D63, 64, 65, 66, 67 or R349 will break the feedback to U16 and cause overvoltage.
13
14
Troubleshooting “TOP-210” Bias Supply.
QUICK TEST OF BIAS SUPPLY.
Ramp the AC voltage up slowly to 25% of regular voltage (30V for 12OV unit). If the bias supply is working normally, the green “power” LED should come on between 30 and 35V, with its usual, steady “half-brighf’ start-up level.
CAUTION: if the LED comes on at 2OV, or not until 5OV, or blinks, DO NOT RAISE VOLTAGE PAST 60V until you have measured the bias voltage. The switching will not start until you reach 9OV, so you can save the IGBT’s from blowing.
Confirm that bias voltage at Cl38 is 18-19V.
BIAS SUPPLY VOLTAGE MUCH TOO HIGH
D63,64,65,66,67 or R349 open or missing -- breaks feedback to U16
NO BIAS SUPPLY VOLTAGE
U16 missing or blown.
Tl missing, reversed, or open primary
D62 open or missing.
BIAS VOLTAGE ERRORS
The exact voltage is controlled by the feedback through D63, 64_ 65, 66, 67 and R349 as follows:
Cl38 is the “+18V’ rail with about 18.8V typical.
D63, 64, 65 each subtract a diode drop (0.7V) from Cl38.
Cl39 , is the “+16V” rail with about 16.6V typcial.
D66, a IOV zener diode , plus diode D67, subtract about 1 IV from +16.6V.
R349 subtracts about 0.5V, bringing the net voltage at Ul6, feedback pin 4, to about 5.lV.
Ul6 uses this feedback to adjust the “on” time at pin 5, in order toraise or lower the flyback voltage charging Cl38 and thus maintain regulation of the +16V and +18V supplies
C142, R356, and R349 form a closed-loop stability circuit which prevents the regulated voltage from
“hunting”.
Q99 and associated R374 reduce the voltage of the Bias supply by 33% when the AC voltage is turned off.
This prevents the Power LED from showing at half brightness after turn-off, since U16 continues to run from the main filters for some time after shut down R375 and 376 sense the output of Ul3:3, the “Loss of
AC” comparator, and cause Q99 to turn on. If Q99 is shorted, the bias voltages will remain 33% low when
AC is turned on.
REPLACING BLOWN TOP-210.
If U16 has blown, check T-l for continuity after removing Ul6. Its primary may be open. Pins I-2 It should measure about 15 ohms
Replacing Blown Output Transistors
OUTPUT TRANSISTOR SHORTED
Stmrk in one device tend to cause the opposing device to blow as well,
If an output transistor shorts:
Drive transistor will be shorted (Q26, Q27, Q71, Q72)
CXNne transistors will short in pairs (Q39 & Q40, Q36 & Q37, Q84 8 Q85, Q81 8, Q82)
The rest will short in fours (Q28, Q29, Q34 & Q35; Q73, Q74, Q79 8, Q80)
IGBT’s 8 their associated components may fail
CHECK EMITTER AND BASE RESISTORS WHILE DEVICES ARE REMOVED,
Each output transistor has an associatated pair of 0.47 ohm resistors in parallel.
Each BANK of output transistors has a 15 ohm resistor from base to rail (emitter bus).
Audio Outputs, Troubleshooting Current Limit
WEAK CURRENT LIMIT -- PREMATURE CLIPPING.
The usual symptom of weak output current is premature clipping of one or more peaks of the audio voltage.
This could be caused by missing step, weak current limit, or dead output section.
PREMATURE CLIPPING at 60% VOLTAGE, SIMILAR AT ALL IMPEDANCES:
This points to a step problem (2402, 3002 only). See Step Troubleshooting.
If the amplifier reaches full voltage at 8 ohms, but prematurely clips at 4 ohms or 2 ohms, we can assume the step is OK but the output current is too low (see below).
NO OUTPUT AT ALL ON ONE POLARITY.
This indicates complete failure (open circuit) in the circuit leading to the dead output polarity. Check the series components in the current splitter for missing or open:
Ch 1: Positive, Ql9, R381, Q20, R70, DIO, D14. Negative: Q22, R382, Q21, R71, Dl I, D12
Ch 2: Positive, Q64, R383, Q65, Rl93, D35, D39. Negative: Q67, R384, Q66, Rl94, D36, D37
CONSTANT, PREMATURE CLIPPING, WORSE AT LOW IMPEDANCES.
First, check the clamping voltages on C21 (Ch I+), C22 (Ch I-), C56 (Ch 2+), C57 (Ch 2-), as shown in table below. At idle, all four voltages should all be similar. If one is out, check parts according to the following table
CLAMPING VOLTAGES ARE WRONG AT IDLE
CHANNEL-POLARITY
Measure voltage on:
3002 and 2402, about 6V.
1602, about 4,6V,
1202 about 4.9V.
Voltage too high: missing resistor: or missing transistor:
Voltage 0-0.3V: shorted transistor or missing resistor
Voltage 0.7V, missing resistor:
Voltage wrong: wrong value
CH I+ CH lc21 c22
R60
Q14
Ql4,24
R 51, 72
R59
R59,60
R61
Ql5
Ql5, 25
R53, 75
R62
R62,61
CH 2+
C56
RI83
Q59
Q59,69
Rl74, 195
RI82
Rl82, 183
CH 2c57
RI84
Q60
Q60,70
Rl76, 198
RI85
Rl85,184
The exact voltage varies with temperature. Look for the mismatching value on the weak cell.
A too-low voltage causes early clamping of that output section, as explained in the previous several pages.
If the voltage is correct and current is still low, also check for missing - unsoldered output device, or emitter resistors.
15
16
Audio Power Stage, Current Limit Troubleshooting
CURRENT LIMITS WHICH COLLAPSE PREMATURELY.
An immediate collapse of ALL current limits at full power could be premature triggering of “Power Supply
Cutback”, which is described in the section below. Cutback after several seconds of full power operation at two ohms is normal.
Cutback of one or more output sections, at full temperature, while approaching full power into two ohms is also normal. However, cutbacks at 4 ohms, or when cold into two ohms, indicate problems with the transistor power measuring circuitry.
CLAMPING VOLTAGES COLLAPSE TOO SOON.
CHANNEL-POLARITY CH I+ CH l- CH 2+ CH 2-
Measure voltage on: c21 c22 C56 c57
Cuts back too easily: low value, R67, 73 R68, 74 or high value: R 51, 72 R53, 75
Rl90, 196
Rl74, 195
Rl91, 197
Rl76, 198 or missing diode: D9 D8 D34 D33
CLAMPING VOLTAGES ARE CORRECT, CURRENT STILL WEAK.
Shorted diode DIO, 14 Dll, 12
Missing-unsoldered output device or emitter resistor.
D35, 39 D36, 37
TROUBLESHOOTING “POWER SUPPLY CUTBACK”.
As noted in the section on Power Supply, the amplifier’s current limit cuts back when necessary to protect the power supply. Because the Observed effect is a reduced output voltage, in response to prolonged operation above the long-term current limit, we commonly refer to this behavior as “power supply cutback”, but we must remember that it is actually amp/Tier current hmifhg in response to an overload signal sent from the power supply. Full power operation into 2 ohms (both channels) should produce a 50% cutback of current after several seconds.
If both channels of the amplifier fail to cut back after about 3 seconds, 2-ohms, both channels driven, the cutback signal is probably missing. CAUTION: Prolonged operation under these conditions could blow
IGBT or burn out Cl44. Test for 6-10 seconds maximum.
Check the output (secondary side) pins of U17 (sh 4). Confirm presence of +6V on pin 5. Pin 4 should normally be at about OV, and go high (I-5V) after 3 seconds at full power,
If Ul7-pin 4 does not go high, check U17 itself. If it appears OK, trace the circuitry driving U17 (PRIMARY
SIDE, CAUTION). Check for continuity through L6:2 to Pri-Lo, check missing or open R343, D61, Q95,
R347, all of which drive optocoupler U17. A short in R346 or Cl31 will also prevent drive to U17.
If Ul7-pin 4 goes high on schedule, and BOTH channels fail to cut back, trace voltage on “PS_OL” bus to
R273 (sh 3), which connects to “MUTE+” bus. Continue tracing voltage on MUTE+ to Ql6 (sh I) and Q61
(sh 2). If only ONE channel fails to cut back, look for missing Ql6, R 65, Ql7 (sh I) or Q61, Rl88, Q62
(sh 2).
Cl31 controls the speed of cutback.. If missing, the amplifier current limits will enter cutback almost immediately at or above full power, 4 ohms.
SHORT CIRCUIT CURRENT DOESN’T CUT BACK.
CAUTION: DO NOT MAINTAIN A SHORTED LOAD IF CUTBACK FAILS TO OCCUR WITHIN 1 SECOND.
It will be necessary to measure the output current with a DC current probe, or by noting the voltage across a low value resistance with a DC scope, in order to determine which output cell is failing to cut back.
Failure to cut back could indicate either lack of clamping, or lack of voltage cutback. Measure the voltage on the respective clamp capacitor. If the voltage decreases, but current limiting does not cut back, check the clamping transistor. :
CLAMPING VOLTAGE DECREASES, BUT NO CURRENT CUTBACK
CHANNEL-POLARITY CH I+ CH l- CH 2+ CH 2-
Measure voltage on: c21 c22 C56 C5?
Check clamp transistor Q18 Q23 Q63 Q68
If the measured voltage on the clamp capacitor is not decreasing to about 50% during the short, check the circuitry which measures the current during short circuit,
CLAMPING VOLTAGE DOES NOT DECREASE TO 50% DURING SHORT.
CHANNEL-POLARITY CH I+ CH l- CH 2+ CH 2-
Measure voltage on: c21 c22 C56 c57
Missing cutback transistor, resistor Q24, R67 Q25, R68 Q69, RI90 Q70, RI91
Missing voltage sense resistor, R 73 R 74 RI96 RI97
Shorted or low value shunt resistor R72 R75 RI95 RI98
Troubleshooting Thermal Tracking
MOUNTING PROBLEMS WITH IOK SENSING NTC.
The thermal sensing for fan and bias tracking depends on a 1 OK NTC which is mounted in a hole in the heat sink. The hole is filled with thermal grease to improve coupling. If the NTC is not straight while mounting the heat sink, it may short out against the side of its hole. It is mounted on a standoff which protrudes into the hole, so this should not occur if care is taken while installing the heatsink.
If shorted to the heat sink, the amplifier output voltage is coupled to the NTC. If the short is to the grounded lead of the NTC, it may not damage anything. If to the other end, a large voltage is put across the NTC which will probably damage it.
SHORT FROM “LIVE” END OF NTC TO HEAT SINK:
Replace affected NTC
BE AWARE! This can short (relatively) quietly and then appear to be operating normally. Poor bias tracking can indicate this problem. Sometimes this short will not happen until the amplifier is driven past IV input.
NTC BENT OVER AND SHORTED TO DRIVER TRANSISTORS.
May touch Ql9, Q26, or Q64, Q71.
This causes severe overcurrent to the affected output cell, possibly damaging the parts in series with the shorted transistor. It may also blow the power supply.
Replace affected NTC, drive transistors, check components in series with drive transistor
Ch 1: Ql9 shorted, check, R381, Q20, R70, DIO, D14.
Q26 shorted, check ALL outputs and opposing driver transistor on this channel.
Ch 2: Q64 shorted, check R383, Q65, Rl93, D35, D39.
Q71 shorted, check ALL outputs and opposing driver transistor on this channel.
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18
Audio Output, Troubleshooting Stability Feedback
HIGH FREQUENCY OSCILLATIONS
SEVERE-DRAWS CURRENT-GROSS DISTORTION
C27 (62) missing or wrong, or series R367 (368)
C 25, 26 (60, 61) missing
Secondary filter capacitors missing or open (unlikely that ALL are defective).
SEVERE, BUT DOES NOT DRAW LARGE CURRENT
R22 (146) open.
MARGINAL -- MAY APPEAR ONLY AS EXCESS DISTORTION
Cl4 (49) missing
Cl 6 (50) missing or too large
C28 (63) missing
C 25 or 26 (60 or 61) missing or too large
Cl95 or 196 missing (input board).
EXCESSIVE OSCILLATION JUST BELOW CLIPPING, 2-4 ohms
Cl 7 (52) missing
NOTE: about 0.1% oscillation right below clipping at 2 ohms is normal.
EXCESSIVE SWITCHING INTERFERENCE.
Switching interference may LOOK like an instability, however it is at a much lower frequency (1lOkH.z) than most instabilities. It will be more visible at low frequencies (2OOHz) and at lower impedances.
Missing jumper at R224.
Missing Cl29, 134 on output board.
Grounds not connected to chassis at output board and front chassis mounting screw.
FEEDBACK PROBLEMS: GAIN INCORRECT
Gain of output stage set by R23, 31 (147, 153)
Gain of Ch 1 volume control buffer stage set by RI 1, 16.
Gain of Ch 2 volume control buffer stage set by Rl37, 139. Make sure Q48 is turned on - grounding RI37 at Q48 should not affect gain. Check RI 32 (drives Q48).
Gain of balanced input is set by 4 matched resistors R9, 8, 12, 13 (129, 130, 135, 136). Confirm both sides of balanced input are working. Check R5, 6 (123, 124).
Audio Output, Troubleshooting Clipping, Limiting
EXCESS STICKING (TOO MUCH DISTORTION DURING CLIP LIMITING)
Cl4 (49) much too large (also causes increased high frequency distortion).
R38 (161) missing.
R38-39 (161-162) have wrong values.
Q9, 10 (54, 55) missing
R34 (157) or R35 (158) missing
Q8 (53) missing
CLIP LIMITING DOESN’T WORK:
BOTH CHANNELS:
Check U3 missing,
Check U3 supply voltages, +I 3VCL, -13VCL, on C73* 74
ONLY ONE CHANNEL BAD:
Probe output of U2 (7), pin 7 while clipping. If output exceeds 4V during clipping, check :
R38 (161) missing.
R38-39 (161-162) have wrong values.
Q9, 10 (54, 55) missing.
R34 (157) or R35 (158) missing
Q8 (53) missing
If output at pin 7 clamps at 3.5.4V as expected, check parts surrounding U3:
R32 (154) missing
Q7 (52) missing
R28 (151) missing
Q6 (51) missing
RI8 (141) missing
RI9 (142) missing
SW I:1 (1:lO) not making contact
Check each pin on U3
CLIP LIMITING OSCILLATES:
Cl 3 (48) missing.
R21, 27 (144, 150) missing
Troubleshooting Step Problems
EXCESSIVE STEP DISTORTION (STEP GLITCH)
Close scrutiny of the distortion trace, and scope probing of the switched waveform, will help determine the cause of excess step distortion, The step should switch when the output voltage is within IO-12 volts of its respective rail, This switching margin should be fairly constant from 20- 20kHz. The switching event itself should be a fairly uniform up and down ramp, moving at about 25 volts/us, therefore taking about 2us to complete its transition.
Step Switching Too Close to the Rail:
This will cause increased step glitch, especially at low impedances. If present at all frequencies, check the reference voltages:
Negref: 17.5 volts above its intermediate rail: D88, R276-7-8.
PosRef: 20V below its intermediate rails: D87, R256, 257, D53.
Confirm correct values in output voltage divider: R48 loaded by R49-50 (Rl71, and Rl72-173). If present only at high frequencies, check the value of the speed up capacitor C20 (C55) in the output voltage divider, or look for slow switching (see below).
19
20
Step Chattering.
If the step repeatedly switches on and off, usually at a low frequency, it creates an oscillation burst which increases step glitch at low frequency. The tendency is usually worse at low impedances and low frequencies. 2-3 “false trials” at very low frequency, 2 ohms, is normal, but prolonged bursts of maximum frequency chattering may cause FET failure.
Positive step: check hysteresis resistor R66 (RI 89)
Negative step: check hysteresis resistor R69 (RI 92) and capacitor Cl 87 (Cl 93).
Slow or Fast Switching.
Slow switching reduces step glitch but puts more strain on the FET. Fast switching increases step glitch. The usable limit is 17-27 volts/us,
If both slopes are equally off speed, check the slope capacitors:
Positive, C30 (C65) and Negative, C29 (C64).
If only one slope is slow, check the resistors and buffer transistors:
Positive step: R78, 79, Dl5, Q30-31 (R201, 202, D40, Q7576)
Negative step: R83, 84, Dl7, Q32-33 (R206, 207, D42, Q77-78).
Step FET Oscillation.
Certain FET types oscillate at extremely high frequency while ramping up and down. This injects interference into the amplifier which increases the step glitch. Such problems are supposed to be found while (dis)qualifying specific FET types. If they crop up in production, Engineering needs to know.
STEP WON’T TURN ON (Premature Clipping)
If the step refuses to switch high, the amp will clip prematurely, at the intermediate rail, at any load. Make sure the clipping is not acually current cutback, usually evident only at 2 ohms. Probe the output voltage and intermediate rail voltages to confirm clip point and lack of step action. Trace the circuit from the step
FET back via gate drive to drive circuit to locate cracks, missing part etc. Check DC power on step driver
(14V on EACH positive step drivers, 12V on BOTH negative drivers). Check voltage of PosRef (20V below
+65V rail) or Negref (17.5V above -65V rail). Look for severe mismatches of the comparator resistor ladders.
STEP STUCK ON (Switched Rail Voltage Stuck On Full)
If the positive step is stuck on, (evidenced by permanent high voltage on switched rail) the FET is probably bad, since the positive gate drive cannot sustain DC turn-on due to the bootstrapping. If the negative step is stuck on, it could be a bad FET, or the gate drive circuit could be holding the FET on, which will easily be confirmed by measuring the gate voltage. Malfunctioning gate drive circuitry should be checked as noted above under “Won’t Turn On”.
REPEATED FET FAILURE.
Repeated failure of step FET’s is usually caused by failure to fully switch ON or OFF (lingering in the linear region). The actual failure usually occurs at 2 ohms, where the dissipation is highest. After replacing the
FET, the step waveform should be monitored, starting at light load to avoid repeated failure, and advancing briefly to heavier loads while closely watching the waveform. You will need to use an isolated scope probe which allows voltage readings to be taken with respect to the intermediate rails, or to FET sources.
FET Does Not Fully Turn On:
Generally causes problems at low frequency, 2 ohms.
Confirm that the step FET remains fully on for the entire cycle (2OHz). If not, confirm weak gate drive and determine cause.
Weak positive drive: check voltage on C32 (C51) for 14V. Check C31 (C66), low RIO4 (R227), missing D18 (Dl48). Check R78, Dl5, Q30 (R201, D40, Q75).
Weak negative drive: check voltage on C67, 12V. Check R83, Dl7, Q32 (R206, D42, Q77).
FET Turns On or Off Very Slowly:
Generally causes problems at high frequency, 2 ohms.
If both slopes are equally slow, check the slope capacitors:
Positive, C30 (035) and Negative, C29 (034).
If only one slope is slow, check the resistors and buffer transistors:
Positive step: R78, 79, Dl5, Q30-31 (R201, 202, D40, Q75-76)
Negative step: R83, 84, Dl7, Q32-33 (R206, 207, D42, Q77-78).
Severe Step Oscillation.
Generally observed at low frequency, low impedance, right at threshold.
Positive step: check hysteresis resistor R66 (RI 89)
Negative step: check hysteresis resistor R69 (RI 92) and capacitor Cl 87 (Cl 93)
Troubleshooting DC Fault Shutdown
NORMAL BEHAVIOR OF THE CIRCUIT.
Any amplifier fault which causes a non-symmetrical output, such as premature clipping of one polarity, a missing step, etc, may trigger DC fault shutdown. This indicates normal operation of the circuit
TRACING THE CAUSE OF FALSE TRIGGERS.
If amplifier is shutting down for no apparent cause, the source of the false signal must be found. Be sure the output is checked with a DC coupled scope in order to confirm absence of an actual DC offset. The circuit will trip on DC offsets exceeding about 4V.
The optocoupler’s input can be safely disabled by shorted Ul5, pins I-2 together. This will indicate if false triggering is before or after Ul5.
The output of UlO:l, pin 1 should be monitored. If it goes low during DC shutdown, it is sending the false signal.
SHUTDOWN OCCURS AS SOON AS SWITCHING STARTS.
Disable Ul5 as noted above, determine if there is a DC fault condition. CAUTION: use 50-ohm resistor in series with AC line to limit fault current in case of shorted outputs.
If amplifier output looks OK, check UlO:l output. If low, check voltage on pins 2 and 3
UlO:l, pin 2: should be zero (no signal)
UlO:l, pin 31 should be about 2V! set by R243, 244, 245.
Check R348 at Ul.5.
SHUTDOWN OCCURS ABOVE ABOUT 4V OUTPUT:
Q87, C7, R240 or D48 missing.
Confirm D48 is pulled low (-13V), holding Q87 on. If not, check RI 17, 118, Q42
NOTE: this control voltage responds to the Br Mono switch, pole 7.
Check R348 at Ul5.
Bad connection at step diodes (D21, D22, D46, D47)
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22
Fan Speed Troubleshooting
FAN STUCK HIGH:
Q88 or Q89 failed
R30 or Rl55, Thermal Sense NTC, shorted to heatsink
R266 or R271 missing.
FAN DOESN’T RUN
Check fan voltage, should be 1 IV when cold, 29V when hot.
Voltage OK -- replace fan.
No Voltage: check Q91, 89, 90, R264 and 265 missing. Confirm that +/-15V is reaching circuit.
PLX 1202 PCB ASSEMBLY (12OV) PLX 1202 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
CA-01 0002-30 CAP 1 OPF 5% 50V 0805 SMT c14,49
CA-01 5002-10 CAP CER 15PF 10% 5OOV SL Cl6,50
CA-I 10002-30 CAP CER 1 OOPF 5% 5OV NPO SM C40,41,43,
CA-I 33001-10 CAP SM 330PF 5% 500V
CA-I 47003-30 CAP 470PF 5% 5OV 1206 SMT
C5,6,9,18, c53
Cl45,146
Cl,2,4,17, c119,121,
Cl48,181,
Cl82,186,
Cl88
C26,36,37,
C52,61,
CA-168003-30 CAP CER 68OPF 5% 5OV NPO SM C25,60
CA-21 0005-30 CAP ,001 LJF 5% 5OV 1206 SMT Cl20,124,
Cl95,196
C75,81,85,
CA-222001-00 CAP CER Y .0022UF 20% 125VAC Cl22,127
CA-227001-30 CAP CER .0027UF 10% IOOV 0805 ClO8,109,
Cl28
C20,23,24,
C55,58,59,
CA-233001-10 CAP MYLAR .0033UF 10% IOOV Cl13
CA-233002-00 CAP CER Y .0033UF 20% 125VAC Cl 15,118
CA-322001-10 CAP MYLAR .022UF 10% IOOV C27,62
CA-410001-00 CAP MET POLY X.lUF 20% 250V Cl26
CA-410002-10 CAP MYLAR .lUF 5% IOOV c47
C8,12,44,
CA-410003-10 CAP MET POLY .lUF 10% 250V Cl29,134,
Cl56,157
C28,63,
CA-410006-30 CAP CER .lUF 10% 5OVX7R SMT Cll6,125, c135,155,
Cl62,163,
Cl79,180,
Cl83,185,
Cl89,190, c19,39,54,
CA-410011-00 CAP MMYL .lUF 10% 400V
Cl91
ClO7,123
CA-422001-10 CAP MYLAR .22UF 5% 5OV c10,45
CA-447001 -00 CAP MET POLY X.47UF 20% 250 Cl 17
CA-447003-00 CAP POLYP .47UF 10% 400V Cl44
CA-51 0005-30 CAP LYTIC 1 UF 20% 5OV SMT Cl3,48,184
CA-510006-00 CAP MPOLY X IUF 20% 25OVAC Cl 10,112
CA-61 0002-10 1 OUF,35V,2O%,RADlAL ELECT Cl92
C3,38,80,
C86,114,
CA-647001 -10 CAP LYTIC RL 47UF 10% 1 OV NP C46,71
C7,11~42~
CA-647002-1 0 CAP LYTIC RL 47UF 20% 5OV C21,22,56,
C57,89
CA-71 0002-10 CAP LYTIC RL 1 OOUF 20% 25V c139,142,
Cl43
Cl5*33,72!
C78,79,
CA-71 0004-10 CAP LYTIC RL IOOUF 20% 25V Cl38,149,
CA-747001 -10 CAP LYTIC RL 47OUF 20% 16V
Cl50
C73374>763 c77,131
CA-747004-00 CAP LYTIC RL 47OUF 20% 1OOV Cl52,153,
Cl59,160,
Part Number Description Reference
Cl65,166,
Cl69,170
CA-822200-AE CAP LYTIC RL 22OOUF 20% 200V Cl 32,133
CH-000102-00 HEATSINK, AUDIO, PLX
CH-000103-00 SPRING, CLAMP, 2 HOLE
CH-000104-00 HEATSINK PS PLX
CH-0001 1 I-00 BRACKT,OUTPUT PCB PLC PLATFORM
CH-000114-00 CLAMP, 2 FINGER PLX
CO-000036-CO SPEAKONS, PC MOUNT J7,8
CO-000148-00 CONN XLR F VERT PCB J2,lO
CO-000155-00 HEADER PCB ,100 2-POSITION J13
CO-000162-00 BNDG POST A, DUAL SLOT, PLX
CO-000163-00 BNDG POST B, DUAL SLOT, PLX
CO-3001 12-PJ JACK 1/4” PHONE DBLOPEN CKT Jl,9
HW-OOOOOI-FC FUSE CLIPS REF: Fl
IC-000024-00 IC REG PWM 40V O.lA SG3525A Ul9
IC-000047-30 IC LIN DUAL COMP LM393 SO-8 UIO
IC-000048-30 IC LIN DUAL OP AMP MC33078 Ul,6
IC-000051-00 IC OPTO-IS0 MOC8101 u1517
IC-000053-30 IC LIN SMT DUAL TIMER LM556 Ul4
IC-000054-30 IC LIN SMT QUAD COMP LM339A Ul3
IC-000073-30 IC LIN DUAL OP AMP LMI 3600
IC-000134-00 IC CMOS HV DRVR lR2110
U3
Ul8
IC-000135-00 IC LIN PWM SWITCH TOP 210 Ul6
IC-005532-OP IC LIN DUAL OP AMP 5532 EXIMP U2,7
MS-000048-HS HEAT SINK, ISOL TO-220 REF: Q91
MS-0001 12-00 FUSE 25A 125V 3AG FAST CER F l
PC-000531-00 PCB MAIN PLX
PL-000114-00 INSUIATOR, IGBTIRECT HS, PLX
PL-000726-00 SPRING, SEAT, PLX
PL-000128-00 SPACER, LED, ,276” LD2-LDI 1
REl55,LDl,
REF:R30,
PL-000135-00 INSULATOR, MICA 1.25” X 1.75” REF:Q96,97
PL-905156-SP SPACER,ROUND,NYLON,#6,0.155 REF:Ll,2
PT-125000-AT RES VAR IT 250 20% 0.15W CAR VR43,166
PT-310000-CR RES VAR IT IOK 20% 0.2W W/DE VR2,121
QD-000014-QD DIODE TO220 ULTRAFAST 200V D74,75,80,
D81
QD-000042-00 DIODE RECT ULTRAFAST 400V 3 D70,71
QD-000052-00 LED GRN T-l LD2,3,4,7,
LD8,9,11
QD-000053-00 LED YEL T-l
QD-000054-00 LED RED T-l
LDI ,6
LD5,lO
QD-000062-10 XISTOR NPN TO-92 40V 0.2A 1.5 Q20,65
QD-000063-10 XISTOR PNP TO-92 40V 0.2A 1.5 Q21,66
QD-000076-00 XISTOR NPN TO-220 250V Q27,72
QD-000077-00 XISTOR PNP TO-220 25OV Q26,71
QD-000102-30 DIODE SW IN4148 SMT 75V 75M Dl-5,8,9,
DIO-12,14,
D23-30,33,
D34-37?39_
D48-51,55,
QD-000103-30 XISTOR NPN SMT 40V .2A .2W
D59,63,
D64,65,67,
D69,89,90,
D91
Ql3,15;18,
Q25,49,50,
Q5,7,&%
Q52?53,54?
Q58,60,63,
23
PLX 1202 PCB ASSEMBLY (12OV) Cont’d PLX 1202 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference Part Number Description Reference
24
QD-000104-30 XISTOR PNP SMT 40V .2A .2W
Q70,89,90,
Q92,93,95
Ql-4,6,10,
Ql2,14,23,
Q24>42143,
Q44-48,51,
Q55,57,59,
Q68,69,87,
Q88,94,98,
Q99
QD-000105-30 XISTOR NPN SMT 300V .2A .2W
Ql6,61
QD-000106-30 XISTOR PNP SMT 300V .2A .2W
Ql7,62
QD-000108-30 DIODE SMT SWITCH 200V .2A 50 Dl3,16,38,
D41,61,68,
QD-0001 lo-30 DIODE ZNR 6.2V 5% .3W SMT
D78,79
D56
QD-000113-30 DIODE ZNR IOV 5% .3W SMT D66
QD-00011530 DIODE SMT RECT 600V IA
QD-000116-30 DIODE RECT SMT 200V IA
D58,60,86
D62*76,77j
QD-000154-00 XISTOR NPN TO-220 230V
D82,83
Ql9,64
QD-000155-00 XISTOR PNP TO-220 230V Q22,67
QD-000156-00 XISTOR PNP TO-220 1OOV 3A 40 Q91
QD-000162-00 XlSTOR,lGBT 2OAI6OOV Q96,97
QD-000170-00 DIODE BRIDGE RECT 600V 5OA BRI
QD-001302-PN XISTOR PNP TO-3P 200V 15A Q28,36,39,
QD-003281-NP XISTOR NPN TO-3P 200V 15A
QD-004744.ZA DIODE ZNR 15V 5% 1 W 1 N4744A D53,54
QD-005402-DX DIODE RECT DO27 200V 3A Dl9,20,44,
D45
RE-.04703-10 RES MOFP .47 5% 2W MINI
Q73181,84
Q29,37,40,
Q74,82va5
RlO3,107,
R108,111,
RI 12-114,
R211,212,
R214,215,
R225,226,
R230,231,
RE-027401-30 RES SMT 274 1% l/l OW 1 OOV
RE-038301-30 RES SMT 383 1% l/lOW IOOV
RE-047001-10 RES MOFP 470 5% 2W MINI
RE-047502.30 RES SMT 475 1% l/lOW IOOV
RE-053602-30 RES SMT 536 1% l/l OW 1 OOV
RE-063402-30 RES SMT 634 1% 1/8W 1206
RE-110006-30 RES SMT 1 .OOK 1% 1/8W 1206
RE-115002-30 RES SMT 1.5OK 1% l/lOW 1 OOV
RE-120002-30 RES SMT 2.OOK 1% l/l OW IOOV
RE-122103-30 RES SMT2.2lK 1% IIIOW IOOV
RE-139002-10 RES MOFP 3.9K 5% 2W MINI
RE-147502-30 RES SMT 4.75K 1% l/l OW IOOV
RE- 56002-10 RES MOFP 5.6 5% 2W MINI
R234-237
Raasa9,91 ~
R92,102,
R203,221,
R354,355,
R373
R80,98,
RE-000210-NR THERMISTOR NTC 15A CUR LIM R324
RE-000230-NR THERMISTOR NTC IOK 5% R30,155
RE-001003-30 RES SMT 10 OHM 5% 1/8W 1206 R353,356,
R358,359
RE-001502-10 RES MOFP 15 5% 2W MINI R209,210,
R213,216,
R367,368
RE-156001-10 RES 5.6OK .I% 1/4W 25PPM
RE-159002-30 RES SMT 5.9OK 1% l/lOW 1 OOV
RE-175002-30 RES SMT 7.5OK 1% l/l OW 1 OOV
R85-87,90,
R93,208,
RE-003921-30 RES SMT 39.2 OHM 1% 1/8W 120 R246-249,
R349,357
RE-178701-30
RE-190902-30
RES SMT 7.87K 1% l/lOW IOOV
RES SMT 9.09K 1% 1 /I OW 1 OOV
RE-005606-10 RES MOFP 56 5% 2W MINI R372
RE-007502-30 RES SMT 75 1% l/l OW 1 OOV RI24
R5,6,123,
RE-010002-30 RES SMT 100 1% IIIOW IOOV Rl50,193,
RE-210003-30 RES SMT lO.OK 1% l/lOW IOOV
RI 94,334, RE-212702-30 RES SMT 12.7K 1% l/lOW IOOV
R265,267,
R3473348
R47,170_
R251
Rll,l7,
Rl25,126,
Rl31,137,
RI 3a1253v
R3,4,10,
R327_3307
R362
Rl3,129,
R283377
R22,146,
R361_374
R370
RI 37,423
Rll7,118,
Rl28,165,
R232,250,
R252,369
RlOl,lO9,
Rl47,154,
Rl57,158,
Rl62,164,
R23,32334,
R270,273
R35,39,41,
Rl27,171,
Rl95,198
R48s72_753
R240,264,
Rl30,135,
RI36
R8,9,12,
Rl22,152,
Rl82,185
R29,59,62,
Rl20,132,
Rl40,161
RI 5,38,
R360
R258,266,
R272
R36,159,
R336,338v
R363,366,
R375,376
RlO6,133,
R21,27,70,
R364,381,
R382-384
R71,144?
RI 91,204,
R205
R67,68,81,
R82,190,
R44,167
R256,257,
R27632773
R278
Rl51,160
PLX 1202 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
RE-212702-30
RE-2 15002.30
Rl34,139,
Rl4,16,19,
Rl42,169,
Rl88,199,
R200,241,
R245,259,
RES SMT 12.7K 1% l/lOW IOOV R329,337
R46,65,
R76,77,
RES SMT 15.OK 1% l/lOW IOOV Rl48,168,
R25,45,
R262,365
RE-215401-30
RE-216501-CM
RE-220002-30
RE-224901-30
RE-230002-10
RE-239202-30
RE-247503-30
RE-310002-30
RE-310003-30
RE-315002-30
RE-339201-30
RE-348702-30
RE-375005-BM
SC-0631 OO-PP
SC-081 IOl-SP sw-000029-s sw-000053-00
WC-0.2020-JW
RES SMT 15.4K 1% 1/8W 1206 Rl72,173
RES MF 16 5K 1% 1/2W
R49,50,
R31,153
RES SMT 20,OK 1% IIIOW 1OOV Rl8,141,
R229,242,
R244,271~
R331,346
RES SMT 24.9K 1% l/lOW IOOV R325
RES MOFP 30K 5% 2W MINI R351,352
RES SMT 39.2K 1% IIIOW IOOV Rl43,183,
Rl84,243,
R20,60,61,
R261,323,
R332
RES SMT47 5K 1% l/lOW IOOV R26,149
RES SMT IOOK 1% l/lOW IOOV R156
R33,119,
RES SMT IOOK 5% 1/8W 1206 Rl76,196,
Rl97,268,
R341-345
R51,53>73,
R74> 174,
RES MF 15OK 1% 1/8W 1206 R333,335
RES SMT 392K 1% l/lOW IOOV R24,145,
R260,263,
RES MF 487K 1% 1/8W 1206
R340
R321,322,
R326,328
R339,371 RES MF 750K 2% 1/2W
#6-20 X 518” “AB” TYPE 1 XRECE
#8-18 X 5i8”, TYPE 1 PIP BLACK
RELAY,
SW1
JMPR BARE 0.2” 20AWG SLD D22,46?47
REF:D21,
WC-0.5018-JW
REF:D87,88 wc-000001-10 wc-000103-00 wc-000115-00
J3-4,J5-6
REF:ES2,
TO SWITCH wc-000115-01 wc-000117-00 wc-000117-01
WC-0001 17-02 wc-000117-03
SPEAKER WIRE, BLACK
SPEAKER WIRE, WHITE
SPEAKER WIRE, GREY
SPEAKER WIRE, BLACK
TO SWITCH
El2A-?2C
REF:
E9A-9C
REF:
E l l A - I I C
REF:
EIOA-IOC
PLX 1202 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
WC-0001 18-00WIRE ASSY, BLK, LONG EHI-EH2
WC-0001 18-01 WIRE ASSY, RED, SHORT
WC-0001 18-01 WIRE ASSY, RED, SHORT
REF:
ELI-EIZOA
REF:
XF-000005-00 BEAD FERRITE WI2OAWG LEAD L9,lO
XF-000023-00 CHOKE COMMON MODE 2.2MH
L3,4
XF-000061-00 INDUCTOR TORIOD 1.9UH 13GA L6
XF-000064-00 XFMR AMP HOUSEKEPPING PLC Tl
XF-000079-00 XFMR PLXI 202/2402 (12OV)
XF-000085-00 XFMR PLXl202/2403 (IOOV)
T2
T3
XF-200014-CR INDUCTOR 2UH 14AWG VERT M Ll,2
PLX 1202 PCB ASSEMBLY (230V)
Part Number Description Reference
CA-01 0002-30
CA-01 5002-10
CA-I 10002-30
CA-133001-10
CA-147003-30
CA-l 68003-30
CA-21 0005-30
CAP 1 OPF 5% 50V 0805 SMT
CAP CER 15PF 10% 500V SL c14,49
Cl6,50
CAP CER IOOPF 5% 50V NPO SM C40,41,43,
CAP SM 330PF 5% 5OOV
CAP 470PF 5% 50V 1206 SMT
C5,6,9,18, c53
Cl45,146
Cl,2,4,17, c119,121,
Cl48,181,
Cl82,186,
Cl88
C26136,37,
C52,61,
CAP CER 68OPF 5% 50V NPO SM C25,60
CAP .OOl UF 5% 5OV 1206 SMT Cl20,124,
Cl95,196
CA-222001 -00
CA-227001 -30
CA-233001-10
CA-233002-00
CA-322001 -10
CA-41 0001-00
CA-41 0002-10
CA-41 0003-10
CA-41 0006-30
CA-41 001 I-00
CA-422001 -10
26
PLX 1202 PC6 ASSEMBLY (230V) Cont’d
Part Number Description Reference
CA-610002-10 lOUF,35V,2O%,RADlAL ELECT Cl92 c3,3a,ao,
C86,114,
CA-647001-10 CAP LYTIC RL 47UF 10% IOV NP C46,71
CA-647002-1 0
CA-71 0002-10
CA-71 0004~10
CAP LYTIC RL 47UF 20% 5OV
CAP LYTIC RL 1 OOUF 20% 25V
CAP LYTIC RL 1 OOUF 20% 25V
C7,11,42,
C21,22,56, c57>89 c139,142,
Cl43
Cl5,33,72, c78,79, cl38,149,
Cl50
CA-747001 -10 CAP LYTIC RL 470UF 20% 16V C73,74376, c77,131
CA-747004-00 CAP LYTIC RL 470UF 20% 1 OOV Cl 52,153,
Cl59,160,
Cl65,166,
Cl69,170
CA-822200-AE CAP LYTIC RL 2200UF 20% 200V Cl 32,133
CH-000102-00 HEATSINK, AUDIO, PLX
CH-000103-00 SPRING, CLAMP, 2 HOLE
CH-000104-00 HEATSINK PS PLX
CH-00011
I-00 BRACKT,OUTPUT PCB PLC PLATFORM
CH-000114-00 CLAMP, 2 FINGER PLX
CO-000036-CO SPEAKONS, PC MOUNT J7,8
CO-000148-00 CONN XLR F VERT PCB J2,lO
CO-0001 55-00 HEADER PCB .I 00 2-POSITION J13
CO-000162-00 BNDG POST A, DUAL SLOT, PLX
CO-000163-00 BNDG POST B, DUAL SLOT, PLX
CO-3001 12-PJ JACK 1/4” PHONE DBLOPEN CKT Jl,9
HW-OOOOOI-FC FUSE CLIPS REF: Fl
IC-000024-00
IC-000047-30
IC REG PWM 40V O.lA SG3525A
IC LIN
DUAL
COMP LM393 so-a
Ul9
UIO tc-000048-30
IC-00005 I-00
IC-000053-30
IC-000054-30
IC-000073-30
IC-000134-00
IC-000135-00
IC-005532-OP
MS-000048-HS
MS-l 50250-FU
PC-000531 -00
PL-000114-00
IC LIN DUAL OP AMP MC33078
IC OPTO-IS0 MOC8101
IC LIN SMT DUAL TIMER LM556 Ul4
IC LIN SMT QUAD COMP LM339A Ui3
IC LIN DUAL OP AMP LMl3600
IC CMOS HV DRVR lR2110
IC LIN PWM SWITCH TOP 210
Ul,6 u15,17
U3 uia
U16
IC LIN DUAL OP AMP 5532 EX/MP U2,7
HEAT SINK, ISOL TO-220 REF: Q91
FUSE 15A 25OV 3AG FAST CER F l
PL-000126-00
~~-000128-00
PCB MAIN PLX
INSULATOR, lGBT/RECT HS, PLX
SPRING, SEATt PLX
SPACER, LED, ,276” LD2-11
Rl55,LDl,
REF:R30,
INSULATOR, MICA 1.25” X 1.75” REF:Q96,97
SPACER,ROUND,NYLON#6,0.155 REF:Ll,2
RES VAR IT 250 20% 0.15W CAR VR43,166
RES VAR IT
1 OK 20% 0.2W W/DE VR2,121
DIODE TO220 ULTRAFAST 200V D74>75,80
Dal
DIODE RECT ULTRAFAST 400V 3 D70,71
LED GRN T-l
LED YEL T-l
LED RED T-l
LD2,3,4,7,
LDa>gqll
LDl,6
LD5,lO
PLX 1202 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
QD-000062-10
QD-000063-10
QD-000076-00
QD-000077-00
QD-000102-30
QD-000103-30
XISTOR NPN TO-92 40V 0.2A 1.5
Q20,65
XISTOR PNP TO-92 40V 0.2A 1.5
Q21,66
XISTOR NPN TO-220 25OV
XISTOR PNP TO-220 250V
Q27,72
Q26,71
DIODE SW 1 N4148 SMT 75V 75M Dl-5,&3,9,
DIO-12,14,
D23-30,33,
D34-37,39,
XISTOR NPN SMT 40V .2A .2W
D48-51,55,
D59,63-65,
D67,69,89,
D90,91
Ql3,15,18,
Q25,49,50,
QD-000104-30 XISTOR PNP SMT 40V .2A ,2W
Q5,7,8,9!
Q52,53,54,
Q58,60,63,
Q70,89,90,
Q92,93,95
Ql-4,6,10,
Ql2,14,23,
Q24?42343*
Q44-4a851 1
Q55,57,59,
Q6&69,87,
Qaav94v9as
Q99
QD-ooOlO5-30 XISTOR NPN SMT 300V .2A .2W
Ql6,61
QD-000106-30 XISTOR PNP SMT 300V .2A .2W
Ql7,62
QD-000108-30 DIODE SMT SWITCH 200V .2A 50 Dl3,16,3&
QD-000110-30
QD-000113-30
QD-000115-30
QD-000116-30
DIODE ZNR 6.2V 5% .3W SMT
DIODE ZNR IOV 5% .3W SMT
DIODE SMT RECT 600V IA
DIODE RECT SMT 200V 1A
D41,61,68,
D78,79
D56
D66
D58,60,86
D62,76,77,
Da2,83
QD-000154-00
QD-003281-NP XISTOR NPN TO-3P 200V 15A Q29,379403
Raa,a9,91,
R92,102,
R203,221,
R3549355,
RE-027401-30
RE-038301-30
RE-047001-10
RE-047502-30
RE-053602.30
RE-063402.30
RE-110006-30
RE-110006-30
RE-115002-30
PLX 1202 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
RE-00021 O-NR
RE-000230-NR
RE-001003-30
RE-001502-10
R373
R80,98,
THERMISTOR NTC 15A CUR LIM R324
THERMISTOR NTC IOK 5% R30,155
RES SMT 10 OHM 5% 1/8W 1206 R353,356,
RES MOFP 15 5% 2W MINI
R358,359
R209,210,
R213,216,
RE-003921-30
RE-005606-10
RE-007502-30
RE-010002-30
PLX 1202 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
RE-120002-30
RE-122103-30
RE-139002-10
RE-147502-30
PLX 1202 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
SW-000029-S RELAY, SPKR PROTECT,SPDT,2 Kl
SW-000053-00 SWITCH DIP IO-POS, TALL SW1
WC-0.2020-JW JMPR BARE 0.2” 20AWG SLD D22,46,47
REF:D21,
WC-O 5018-JW JMPR INS 0.5” 18AWG SLD WHT J240,
PLX 1202 CHASSIS ASSEMBLY (230V)
Part Number Description Reference
CH-000097-00
CH-000100-00
CH-000112-00
LB-000053-00
LB-000077-00
LB-000099-01
LB-00021 5-00
LB-000236-00
LB-I 60226-01
NW-380801 -IL
PL-000003-CP
PL-000024-00
PL-000040-PL
PL-000054-00
PL-000055-00
PL-000056-00
PL-000066-00
PL-000095-00
PL-000096-00
SC-025000-PP
SC-060060-PS
SC-082051 -PL
SW-000016-S
WC-0001 34-00
WP-000057-00
WP-001203-02
CHASSIS, PLX
HANDLE-EAR CASTING PLX
SHIELD, AC, PLX
LBL, FRENCH, FUSE REPLACEMENT
LABEL,WARNlNG,HlGH ENERGY
LABEL, CE LISTING
LABEL, INPUT/OUTPUT, PLX
LABEL, FACEPLATE PLX 1202
LABEL, FUSE, UL CAUT. 15A 250V
318” INTERNAL TOOTH LOCKWASHER
AC CORD PROTECTOR
STRAIN
PLX 1602 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
Cl56,157
C28,63,
CA-410006-30 CAP CER .lUF 10% 5OVX7R SMT Cll6,125, c135155,
Cl62,163, cl79,lao, cia3,185, cla9,190,
CA-410011-00 CAP MMYL .lUF 10% 400V
CA-422001-10 CAP MYLAR .22UF 5% 5OV c19,39,54,
Cl91
ClO7,123 c10,45
CA-447001 -00 CAP MET POLY X.47UF 20% 250 Cl 17
CA-447003-00 CAP POLYP 47UF 10% 400V Cl44
CA-51 0005-30 CAP LYTIC 1 UF 20% 5OV SMT cl3,48,184
CA-51 0006-00 CAP MPOLY X 1 UF 20% 25OVAC Cl IO,1 12
CA-610002-10 lOUF,35V,2O%,F#DlAL ELECT Cl92 c3,3a,ao,
C86,114,
CA-647001-10 CAP LYTIC RL 47UF 10% IOV NP C46,71
CA-647002-1 0 CAP LYTIC RL 47UF 20% 5OV
C7,11,42,
C21,22,56, c57,89
CA-71 0002-10 CAP LYTIC RL 1 OOUF 20% 25V c139,142,
Cl43
Cl5,33,72, c7a179,
CA-71 0004-10 CAP LYTIC RL 1 OOUF 20% 25V cl38,149,
Cl50
C73,74,76, CA-747001-10 CAP LYTIC RL 470UF 20% 16V c77,131
CA-747004-00 CAP LYTIC RL 470UF 20% 1 OOV Cl 52,153,
Cl59,160,
Cl65,166,
Cl69,170, c173,174
CA-822200-AE CAP LYTIC RL 2200UF 20% 200V Cl32,133,
Cl36,137
CH-000102-00 HEATSINK, AUDIO, PLX
CH-000103-00 SPRING, CLAMP, 2 HOLE
CH-000104-00 HEATSINK PS PLX
CH-0001 1 I-00 BRACKT,OUTPUT PCB PLC PLATFORM
CH-000114-00 CLAMP, 2 FINGER PLX
CO-000036-CO SPEAKONS, PC MOUNT
CO-000148-00 CONN XLR F VERT PCB
J7,8
J2,lO
CO-0001 55-00 HEADER PCB .I 00 2-POSITION J13
CO-000162-00 BNDG POST A, DUAL SLOT, PLX
CO-000163-00 BNDG POST B, DUAL SLOT, PLX
CO-3001 12-PJ JACK 1/4” PHONE DBLOPEN CKT Jl,9
HW-OOOOOI-FC FUSE CLIPS REF: Fl
IC-000024-00 IC REG PWM 40V O.lA SG3525A Ul9
IC-000047-30 IC LIN
DUAL
COMP LM393 so-a UlO ic-000048-30 ic
LIN
D U
AL
0P
A
MP MC33078 Ul,6
IC-000051-00 IC O P T O - I S 0 MOC8101 u15,17
IC-000053-30 IC LIN SMT DUAL TIMER LM556 U14
IC-000054-30 IC LIN SMT QUAD COMP LM339A U13
IC-000073-30 IC LIN DUAL OP AMP LMl3600
IC-000134-00 IC CMOS HV DRVR lR2110
U3 u l a
PLX 1602 PCB ASSEMBLY (12OV) Cont’d
30
PLX 1602 PCB ASSEMBLY (12OV) Cont’d PLX 1602 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference Part Number Description Reference
QD-001302-PN XISTOR PNP TO-3P 200V 15A Q28_34136>
Q39,73,79>
Q81,84
QD-003281-NP XISTOR NPN TO-3P 200V 15A
Q82,85
QD-004744-ZA DIODE ZNR 15V 5% 1 W 1 N4744A D53,54
QD-005402-DX DIODE RECT DO27 200V 3A
Q29,35,37,
Q40,74,80,
RE-.04703-10 RES MOFP .47 5% 2W MINI
Dl9,20,44,
D45
RlO2,103,
RlO7,108,
R l l l - 1 1 4 ,
R211,212,
R214,215,
R217,218,
R220,222,
R225,226,
R230,231,
RE-.56002-10 RES MOFP 5.6 5% 2W MINI
R234-237
R88,89,91,
R92,94,95,
R97,99,
R203,221,
R3541355,
R373
R80,98,
RE-000210-NR THERMISTOR NTC 15A CUR LIM R324
RE-000230-NR THERMISTOR NTC 1 OK 5% R30,155
RE-001003-30 RES SMT 10 OHM 5% 1/8W 1206 R353,356,
R358,359
RE-001502-10 RES MOFP 15 5% 2W MINI R209,210,
R213,216,
R367,368
R85-87190,
R93,208,
RE-003921-30 RES SMT 39.2 OHM 1% 1/8W 120 R246-249,
R349,357
RE-005606-10
RE-007502-30
RES MOFP 56 5% 2W MINI
RES SMT 75 1% l/l OW 1 OOV
R372
RI24
RE-010002-30 RES SMT 100 1% l/lOW IOOV
R5,6,123,
RI 50,193,
RI 94,334,
R21>27,70>
R364>381~
R382-384
R71,144,
RE-027401-30 RES SMT 274 1% l/lOW IOOV
RE-038301-30 RES SMT 383 1% l/lOW 1OOV
RE-047502-30 RES SMT 475 1% IIIOW IOOV
RI 91,204,
R205
R67,68,81,
R82,190,
R44,167
RE-053602-30 RES SMT 536 1% l/lOW IOOV
Rl51,160
R287377
R22,146,
R361_374
RE-063402-30 RES SMT 634 1% 1/8W 1206
RE-082001-10 RES MOFP 820 5% 2W MINI
RE-110006-30 RES SMT l.OOK 1% 1/8W 1206
R370
R256,257,
R276-278
RI 37842,
Rll7,118,
Rl28,165,
RE-115002-30 RES SMT 1.5OK 1% l/lOW 1OOV
RE-116202-30 RES SMT 1.62K 1% l/lOW IOOV
RE-139002-10 RES MOFP 3.9K 5% 2W MINI
RE-156001-10 RES 5.6OK .I% 1/4W 25PPM
R232,250,
R252,369
RlOl,lO9,
Rl47,154,
Rl57,158,
Rl62,164,
R23,32,34,
R270,273
R35,39,41,
Rl95,198
R72,75,
RE-120002-30 RES SMT 2.OOK 1% l/l OW 1 OOV RI 71
R48,127,
RE-122103-30 RES SMT 2.2lK 1% IIIOW IOOV R240,264,
R265,267,
R347>348
R47,170,
R251
RE-147502-30 RES SMT4.75K 1% l/lOW IOOV Rll,l7,
Rl25,126,
Rl31,137,
Rl38,253,
R3,4,10,
R327,330,
R362
Rl3,129,
Rl30,135,
RI36
R8,9,12,
RE-159002-30 RES SMT 5.9OK 1% l/l OW 1 OOV RI 52
R29,122,
RE-163402-30 6.34K l/l OW 1% 1 OOV SMT Rl82,185
R59,62,
RE-175002-30 RES SMT7.5OK 1% l/lOW IOOV Rl20,132,
Rl40,161
Rl5,38,
RE-178701-30 RES SMT7.87K 1% l/lOW IOOV R360
RE-190902-30 RES SMT 9.09K 1% l/l OW 1 OOV R258,266,
R272
R36,159,
RE-210003-30 RES SMT lO.OK 1% l/lOW IOOV R336,338,
R363,366,
R375_376
RE-212702-30 RES SMT 12.7K 1% l/lOW IOOV RlO6,133,
Rl34,139,
Rl4,16,19,
Rl42,169,
Rl88,199,
R200,241,
RE-212702-30 RES SMT 12.7K 1% l/l OW 1 OOV R245,259,
R329,337
R46,65,
R76,77,
RE-215002-30 RES SMT 15.OK 1% IIIOW IOOV Rl48,168,
R25*45g
RE-216501-CM RES MF 16.5K 1% 1/2W
R262,365
R31,153
RE-220002-30 RES SMT2O.OK 1% IIIOW IOOV Rl8,141,
R229,242,
R244,2711
R331,346
PLX 1602 PCB ASSEMBLY
PLX 1602 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
Cl59,160,
Cl65166,
Cl69,170, c173,174
CA-822200-AE CAP LYTIC RL 2200UF 20% 200V Cl32,133,
Cl36,137
CH-000102-00 HEATSINK, AUDIO, PLX
CH-000103-00 SPRING, CLAMP, 2 HOLE
CH-000104-00
PLX 1602 PCB ASSEMBLY (230V) Cont’d
IC REG PWM 40V O.lA SG3525A Ul9
IC LIN DUAL COMP LM393 SO-8 UIO
IC LIN DUAL OP AMP MC33078 Ul,6
IC OPTO-IS0 MOC8101 u1517
IC LIN SMT DUAL TIMER LM5.56
U14
IC LIN SMT QUAD COMP LM339A U13
IC LIN DUAL OP AMP LMI 3600 U3
IC-000135-00
IC-005532-OP
MS-000048-HS
MS-1 50250-FU
PC-000531 -00
PL-000114-00
PL-000126-00
PL-000128-00
IC CMOS HV DRVR lR2110
IC LIN PWM SWITCH TOP 210
IC LIN DUAL OP AMP 5532
HEAT SINK, ISOL TO-220
U18
U16
U2,7
REF: Q91
FUSE 15A 250V 3AG FAST CER F l
PCB MAIN PLX
INSULATOR, lGBT/RECT HS, PLX
SPRING, SEAT, PLX
SPACER, LED, ,276” LD2-11
Rl55,LDl,
REF:R30,
PL-000135-00
PL-905156-SP
INSULATOR, MICA 1.25” X 1.75” REF:Q96,97
SPACER,ROUND,NYLON,#6,0.155 REF:Ll,2
PT-125000-AT
PT.31 0000-CR
RES VAR IT 250 20% 0.15W CAR
RES VAR IT 1 OK 20% 0.2W W/DE
QD-000014-QD DIODE TO220 ULTRAFAST 200V
QD-000042-00 DIODE RECT ULTRAFAST 400V 3
QD-000052-00 LED GRN T-l
QD-000053-00 LED YEL T-l
QD-000054-00 LED RED T-l
QD-000062-10 XISTOR NPN TO-92 40V 0.2A 1.5
QD-000063-10 XISTOR PNP TO-92 40V 0.2A 1.5
QD-000076-00 XISTOR NPN TO-220 250V
QD-000077-00 XISTOR PNP TO-220 250V
PLX 1602 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
RE-003921-30
R E S
SMT 39.2 OHM
I
% liaw
I
20
Ra5-a7,90x
R93,2oa,
PLX 1602 PCB ASSEMBLY (230V) Cont’d
34
PLX 1602 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
REF:D87,88
WC-000001-10 JUMPER INS .6” 22AWG SOLID W R224
WC-000103-00 CABLE ASSY, 20 PIN 9”L
WC-0001 15-00 AC SWITCH WIRE, BLK, LONG
J3-4,J5-6
REF:ES2,
TO SWITCH
WC-0001 15-01 AC SWITCH WIRE, RED, SHORT REF:ESl,
WC-0001 15-01 AC SWITCH WIRE, RED, SHORT TO SWITCH
WC-0001 17-00 SPEAKER WIRE, BIACK El2A-12C
REF:
WC-0001 17-01 SPEAKER WIRE, WHITE
WC-0001 17-02 SPEAKER WIRE, GREY
E9A-9C
REF:
EIIA-IIC
WC-0001 17-03 SPEAKER WIRE, BLACK
REF:
EIOA-IOC
REF:
EHI-EH2 WC-0001 18-00 WIRE ASSY, BLK, LONG
REF:
XF-000005-00 BEAD FERRITE W/2OAWG LEAD L9,lO
XF-000023-00 CHOKE COMMON MODE 2.2MH L3,4
XF-000061-00 INDUCTOR TORIOD 1.9UH 13GA L6
XF-000063-00 XFMR, PWR PLXl602 T2
XF-000064-00 XFMR AMP HOUSEKEPPING PLC Tl
XF-200014-CR INDUCTOR 2UH 14AWG VERT M Ll,2
PLX 1602 CHASSIS ASSEMBLY (12OV)
Part Number Description Reference
CH-000097-00 CHASSIS, PLX
CH-000100-00 HANDLE-EAR CASTING PLX
CH-000112-00 SHIELD, AC, PLX
LB-000052-00 LABEL, cUL APPROVAL
LB-000053-00 LBL, FRENCH, FUSE REPLACEMENT
LB-000077-00 LABEL,WARNlNG,HlGH ENERGY
LB-000214-00 LABEL, FACEPLATE PLX 1602
LB-000215-00 LABEL, INPUT/OUTPUT, PLX
LB-160226-05 lABEL, FUSE, UL CAUT. 25A 125V
NW-380801-IL 3/8” INTERNAL TOOTH LOCKWASHER
PL-000003-CP AC CORD PROTECTOR
PL-000040-PL POT COVERS
PL-000044-PL BUSHING, STRAIN RELIEF
PL-000054-00 KNOB FAB.
PL-000066-00 CLIP XMAS-TREE SLG HEAD FASTEX
PL-000095-00 FAN INTERFACE PLX
PL-000096-00 lNSULATOR,FAN DUCT, PLX
SC-025000-PP SCREW M2.5 X 6MM TYPE 1 PH BLK
SC-060060-PS SCREW 6-32 X ,375 SEMS EXTL ZC
SC-082051-PL SCREW,TAP,PAN PH#8X5/16” “B”BK
SW-000016-S SPST SNAP IN POWER SWITCH
WC-0001 14-00 AC CORD ASSY PLX
WP-000057-00 FAN ASSY, 3.15” 24VDC W/5.5L”
WP-000516-00 PCB ASSY, PLX 1602 (IZOV)
PLX 1602 CHASSIS ASSEMBLY (230V)
Part Number Description Reference
CH-000097-00 CHASSIS, PLX
CH-000100-00 HANDLE-EAR CASTING PLX
CH-000112-00 SHIELD, AC, PLX
LB-000053-00 LBL, FRENCH, FUSE REPLACEMENT
LB-000077-00 LABEL,WARNlNG,HlGH ENERGY
LB-000099-01 LABEL, CE LISTING
LB-000214-00 LABEL, FACEPLATE PLX 1602
LB-00021 5-00 LABEL, INPUT/OUTPUT, PLX
LB-160226-01 LABEL, FUSE, UL CAUT. 15A 250V
NW-380801-IL 3/8” INTERNAL TOOTH LOCKWASHER
PL-000003-CP AC CORD PROTECTOR
PL-000024-00 STRAIN RELlEF,LlQ.TlGHT,HEYCO
PL-000040-PL POT COVERS
PL-000054-00 KNOB FAB.
PL-000055-00 EXPORT BINDING POST PLUG(RED)
PL-000056-00 EXPORT BINDING POST PLUG(BLK)
PL-000066-00 CLIP XMAS-TREE SLG HEAD FASTEX
PL-000095-00 FAN INTERFACE PLX
PL-000096-00 lNSULATOR,FAN DUCT, PLX
SC-025000-PP SCREW M2.5 X 6MM TYPE 1 PH BLK
SC-060060-PS SCREW 6-32 X ,375 SEMS EXTL ZC
SC-082051-PL SCREW,TAP,PAN PH#8X5/16” “B”BK
SW-000016-S SPST SNAP IN POWER SWITCH
WC-0001 34-00 AC CORD ASSY, 23OV, PLX
WP-000057-00 FAN ASSY, 3.15” 24VDC W/5,5L”
WP-000516-02 PCB ASSY, PLX 1602 (230V)
PLX 2402 PCB ASSEMBLY (12OV)
Part Number Descridion Reference
CA-01 0002-30 CAP 1 OPF 5% 5OV 0805 SMT
CA-01 5002-10 CAP CER 15PF 10% 500V SL c14,49
Cl&50
CA-047002-30 CAP CER 47PF 5% 5OV NPO SMT Cl93
C29,30,64,
CA-1 10001-10 CAP SM IOOPF, 5%, 500V
C65,187,
Cl47
CA-I 10002-30 CAP CER IOOPF 5% 5OV NPO SM C40,41,43,
C5,6,9,18, c53
Cl45,146 CA-I 33001-10 CAP SM 330PF 5% 500V
CA-I 47003-30 CAP 470PF 5% 5OV 1206 SMT
CA-I 47003-30 CAP 470PF 5% 5OV 1206 SMT cl ,2>4> c119,121,
Cl48,181,
Cl 7,26136>
Cl82,186,
Cl88
C37,52,61,
CA-168003-30 CAP CER 68OPF 5% 5OV NPO SM C25,60
CA-21 0005-30 CAP 001 UF 5% 5OV 1206 SMT Cl20,124,
Cl95,196
C75,87,85,
CA-222001-00 CAP CER Y .0022UF 20% 125VAC Cl22,127
CA-227001-30 CAP CER .0027UF 10% IOOV 0805 ClO8,109,
Cl28
C20,23,24,
C55,58,59,
CA-233001-10 CAP MYLAR .0033UF 10% IOOV Cl 13
CA-233002-00 CAP CER Y .0033UF 20% 125VAC Cl 15,118
CA-322001-10 CAP MYLAR .022UF 10% IOOV C27,62
CA-410001-00 CAP MET POLY X.lUF 20% 250V Cl26
CA-410002-10 CAP MYLAR .lUF 5% 1OOV c47
C8,12,44,
CA-410003-10 CAP MET POLY IUF 10% 250V Cl29,134,
Cl56,157
C28!34,35,
C63,69,70,
C84,87,90,
CA-410006-30 CAP CER .lUF 10% 5OVX7R SMT Cll6,125, c135,155,
Cl62,163,
Cj77,q78,
Cl79,180,
Cl83,185,
Cl89,190, c19,39,54,
CA-41001 I-00 CAP MMYL .lUF 10% 400V
CA-422001-10 CAP MYLAR .22UF 5% 5OV
Cl91
ClO7,123
Cl 0,45
CA-447001 -00 CAP MET POLY X.47UF 20% 250 Cl 17
CA-447003-00 CAP POLYP .47UF 10% 400V Cl44
CA-51 0005-30 CAP LYTIC 1 UF 20% 5OV SMT Cl3,48,184
CA-51 0006-00 CAP MPOLY X 1 UF 20% 25OVAC Cl IO,1 12
CA-610002-10 lOUF,35V,2O%,RADlAL ELECT c114,192
C3,311383
C66,80,86,
CA-647001-10 CAP LYTIC RL 47UF 10% IOV NP C46,71
C7,11,42,
CA-647002-1 0 CAP LYTIC RL 47UF 20% 5OV
CA-71 0002-10 CAP LYTIC RL 1 OOUF 20% 25V
C21,22,56,
C57,89 c139,142,
Cl43
PLX 2402 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
CA-710004-10 CAP LYTIC RL IOOUF 20% 25V
Cl5,32,51,
C67172378, c79,33,
Cl38,149,
CA-747001 -10 CAP LYTIC RL 470UF 20% 16V
Cl50
C73>74976, c77,131
CA-747004-00 CAP LYTIC RL 470UF 20% 1 OOV Cl 52,153,
Cl59,160,
Cl65,166,
CA-747004-00 CAP LYTIC RL 470UF 20% IOOV Cl69,170, c173,174
CA-747063-AE CAP LYTIC RL 470UF 20% 63V c151,154,
C?58,161,
Cl64,167,
Cl68,171,
Cl72,175
CA-822200.AE CAP LYTIC RL 2200UF 20% 200V Cl 32,133,
Cl36,137
CH-000102-00 HEATSINK, AUDIO, PLX
CH-000103-00 SPRING, CLAMP, 2 HOLE
CH-000104-00 HEATSINK PS PLX
CH-00011 I-00 BRACKT,OUTPUT PCB PLC PLATFORM
CH-000114-00 CLAMP, 2 FINGER PLX
CO-000036-CO SPEAKONS, PC MOUNT
CO-000148-00 CONN XLR F VERT PCB
J7,8
J2,lO
CO-0001 55-00 HEADER PCB 100 2-POSITION J13
CO-000162-00 BNDG POST A, DUAL SLOT, PLX
CO-000163-00 BNDG POST B, DUAL SLOT, PLX
CO-3001 12-PJ JACK 1/4” PHONE DBLOPEN CKT Jl,9
HW-OOOOOI-FC FUSE CLIPS REF:Fl
IC-000024-00 IC REG PWM 40V O.lA SG3525A Ul9
QD-000021 -QD I N4740 1 OV ZENER IW
QD-000031 -QD FET NCHAN TO220 60V 5OA
D80,81
D7,32,88
Q38v41183s
35
PLX 2402 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
Q86
QD-000042-00 DIODE RECT ULTRAFAST 400V 3 D70,71
QD-000052-00 LED GRN T-l LD2,3,4,7,
LD8,9,11
QD-000053-00 LED YEL T-l LDI ,6
QD-000054-00 LED RED T-l LD5,lO
QD-000062-10 XISTOR NPN TO-92 40V 0.2A 1.5 Q20,65
QD-000063-10 XISTOR PNP TO-92 40V 0.2A I.5
PLX 2402 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
Q40,74,80,
Q82,85
PLX 2402 PCB ASSEMBLY (12OV) Cont’d
Reference
.OOK1%1/8W1206
R257
Rl?7?42>
Rll7,118,
Rl28,165,
R232,250,
R252,369
RlOl,lO9,
Rl47,154,
Rl57,158,
Rl62,164,
R23,32,34,
R270,273
R35,39,41,
RI71
R48,127,
RI 70,195,
Rl98,240,
PLX 2402 PCB ASSEMBLY
PLX 2402 PCB ASSEMBLY (12OV) Cont’d
Part Number
PLX 2402 PCB ASSEMBLY (230V) Cont’d
QD-000103-30
QD-000104-30
QD-000105-30
QD-000106-30
QD-000108-30
PLX 2402 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
IC-005532-OP
MS-000048-HS
MS-I 50250-FU
PC-000531 -00
PL-000098-00
PL-000114-00
PL-000117-00
PL-000126-00
PL-000128-00
IC LIN DUAL OP AMP 5532 EX/MP U2,7
HEAT SINK,
PL-000135-00
PL-905156-SP
PT-125000-AT
PT.31 0000-CR
QD-000014-QD
QD-000021-QD
QD-000031-QD
QD-000042-00
QD-000052-00
QD-000053-00
QD-000054-00
QD-000062-10
QD-000063-10
QD-000076-00
QD-000077-00
QD-000102-30
PLX 2402 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
PLX 2402 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
RE-010002-30 RES SMT 100 1% l/lOW IOOV
RE-015004-10 RES MOFP 150 5% 2W MINI
RE-020002-30 RES SMT 200 1% l/lOW 1OOV
RE-027401-30 RES SMT 274 1% l/lOW IOOV
RE-038301-30 RES SMT 383 1% l/lOW IOOV
RE-047001-10 RES MOFP 470 5% 2W MINI
RE-047502-30 RES SMT 475 1% l/lOW 1OOV
RE-053602.30 RES SMT 536 1% l/lOW 1OOV
RE-063402.30
RE-082001-10
RE-110006-30
RE-115002-30
RES SMT 634 1% 1/8W 1206
RES MOFP 820 5% 2W MINI
RES SMT 1 .OOK 1% 1/8W 1206
RES SMT 1.5OK 1% l/l OW 1 OOV
RE-I 20002-30 RES SMT 2.OOK 1% l/lOW 1OOV
RE-122103-30 RES SMT 2.2lK 1% l/lOW 1OOV
RE-130102-30 RES SMT 3.OlK 1% l/lOW IOOV
RE-139002-10 RES MOFP 3.9K 5% 2W MINI
RE-147502-30 RES SMT 4.75K 1% l/lOW IOOV
RE-156001-10 RES 5.6OK .l% 1/4W 25PPM
RE-159002-30 RES SMT 5.9OK 1% l/lOW IOOV
R257
Rl j7>42,
RI 17,118,
Rl28,165,
R232,250,
R252,369
RlOl,lO9,
RI47,154,
Rl57,158,
Rl62,164,
R23,32,34,
R270,273
R35,39,41,
RI71
R48>127>
Rl70,195,
Rl98,240,
R207
R71,123,
Rl44,150,
R211271
R334,364,
R381-384
R256,278
R204,205
R81,82,
Rl90,191
R67,68,
R44,167
R274-277!
R279
Rl51,160
R28,37,
R22,146,
R3611374
R370
R264,265,
R267,347,
R348,84,
R47>72,75,
R79,202
R219,228,
R251
R96,105,
Rll,l7,
Rl25,126,
Rl31,137,
Rl38,178,
Rl79,182,
Rl85,186,
Rl87,253,
R3,4,10,
R327,330,
R362
R55,56,59,
R62-64,
Rl3,129,
Rl30,135,
RI36
R8,9,12,
Rl22,152,
PLX 2402 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
R201,206
R29,78,83,
RE-175002-30 RES SMT 7.5OK 1% l/lOW IOOV Rl20,132,
Rl40,161
Rl5,383
RE-178701-30 RES SMT 7.87K 1% l/lOW IOOV R360
RE-190902-30 RES SMT 9.09K 1% l/lOW IOOV R258,266,
R272
RE-210003-30 RES SMT 1 O.OK 1% l/lOW 1 OOV R336,338,
R363,366,
R375,376
RE-212702-30 RES SMT 12.7K 1% l/lOW IOOV RIO6
Rl33,134,
PLX 2402 PCB ASSEMBLY (230V) Cont’d
Part Number Descriotion Reference
RE-375005BM
SC-0631 00-PP
SC-081101-SP
SW-000029-s
SW-000053-00 wc-0.5018-Jw
WC-000001-1 0
WC-0001 03-00
WC-0001 15-00
WC-0001 1501
WC-0001 17-00
WC-0001 17-01
WC-0001 17-01
WC-0001 17-02
WC-0001 17-03
WC-0001 18-00
XF-000005-00
XF-000023-00
XF-000061-00
XF-000064-00
XF-000079-00
XF-200014-CR
R326,328
RES MF 75OK 5% 1/2W IOOPPM R339,371
#6-20 X 518” “AB” TYPE 1 XRECE
#8-18 X 5/8*‘, TYPE 1 P/P BLACK
RELAY, SPKR PROTECT,SPDT,2 Kl
SWITCH DIP IO-POS, TALL SW1
JMPR INS 0.5” 18AWG SLD WHT J240
JUMPER INS .6” 22AWG SOLID W R224,280
CABLE ASSY, 20 PIN 9”L
AC SWITCH WIRE, BLK, LONG
J3-4,J5-6
REF:ESZ,
TO SWITCH
AC SWITCH WIRE, RED, SHORT REF:ESl,
SPEAKER WIRE, BLACK
TO SWITCH
El2A-12C
REF:
SPEAKER WIRE, WHITE
SPEAKER WIRE, WHITE
SPEAKER WIRE, GREY
E9A-9C
REF.
EIIA-IIC
SPEAKER WIRE, BL4CK
WIRE ASSY, BLK, LONG
REF.
EIOA-IOC
REF.
EHI-EH2
REF.
BEAD FERRITE WI2OAWG LEAD L7-12
CHOKE COMMON MODE 2.2MH
L3,4
I N D U C T O R TORIOD 1.9UH
13GA L6
XFMR AMP HOUSEKEEPING PLC T l
XFMR PLXl202/2402 T2
INDUCTOR 2UH 14AWG VERT M Ll,2
PLX 2402 CHASSIS ASSEMBLY (12OV)
Part Number Descrintion Reference
CH-000097-00
CH-000100-00
CH-000112-00
LB-000052-00
LB-000053-00
LB-000077-00
LB-00021 5-00
LB-000237-00
LB-I 60226-05
NW-380801.IL
PL-000003-CP
PL-000040-PL
PL-000044-PL
PL-000054-00
PL-000066-00
PL-00009500
PL-000096-00
SC-025000-PP
SC-060060-PS
SC-082051 -PL
SW-000016~S
WC-000 114-00
WP-000057-00
WP-002403-00
CHASSIS, PLX
HANDLE-EAR CASTING PLX
SHIELD, AC, PLX
LABEL, cUL APPROVAL
LBL, FRENCH, FUSE REPLACEMENT
LABEL,WARNlNG,HlGH ENERGY
LABEL, INPUT/OUTPUT, PLX
LABEL, FACEPLATE PLX 2402
LABEL, FUSE, UL CAUT. 25A 125V
3/8” INTERNAL TOOTH LOCKWASHER
AC CORD PROTECTOR
POT COVERS
BUSHING, STRAIN RELIEF
KNOB FAB.
CLIP XMAS-TREE SLG HEAD FASTEX
FAN INTERFACE PLX lNSULATOR,FAN DUCT, PLX
SCREW M2.5 X 6MM TYPE 1 PH BLK
SCREW 6-32 X ,375 SEMS EXTL ZC
SCREW,TAP,PAN PH#8X5/16” “B”BK
SPST SNAP IN POWER SWITCH
AC CORD ASSY PLX
FAN ASSY, 3.15” 24VDC WI5.5L”
PCB ASSY, PLX 2402 (12OV)
PLX 2402 CHASSIS ASSEMBLY (230V)
Part Number Description Reference
CH-000097-00
CH-000100-00
CH-000112-00
LB-000053-00
LB-000077-00
LB-000099-01
LB-00021 5-00
LB-000237-00
LB-160226-01
NW-380801-IL
PL-000003-CP
PL-000024-00
PL-000040-PL
PL-000054-00
PL-000055-00
PL-000056-00
PL-000066-00
PL-000095-00
PL-000096-00
SC-025000-PP
SC-060060-PS
SC-082051 -PL
SW-00001 6.S
WC-0001 34-00
WP-000057-00
WP-002403-02
CHASSIS, PLX
HANDLE-EAR CASTING PLX
SHIELD, AC, PLX
LBL, FRENCH, FUSE REPLACEMENT
LABEL,WARNlNG,HlGH ENERGY
LABEL, CE LISTING
LABEL, INPUT/OUTPUT, PLX
LABEL, FACEPLATE PLX 2402
LABEL, FUSE, UL CAUT. 15A 250V
3/8” INTERNAL TOOTH LOCKWASHER
AC CORD PROTECTOR
STRAIN RELlEF,LlQ.TlGHT,HEYCO
POT COVERS
KNOB FAB.
EXPORT BINDING POST PLUG(RED)
EXPORT BINDING POST PLUG(BLK)
CLIP XMAS-TREE SLG HEAD FASTEX
FAN INTERFACE PLX lNSULATOR,FAN DUCT, PLX
SCREW M2.5 X 6MM TYPE 1 PH BLK
SCREW 6-32 X ,375 SEMS EXTL ZC
SCREW,TAP,PAN PH#8X5/16” “B”BK
SPST SNAP IN POWER SWITCH
AC CORD ASSY, 23OV, PLX
FAN ASSY, 3.15” 24VDC W/5,5L”
PCB ASSY, PLX 2402 (230V)
41
PLX 3002 PCB ASSEMBLY (12OV)
Part Number DescriDtion Reference
CA-01 0002-30
CA-01 5002-10
CA-047002-30
CA-110001-10
CA-l 10002-30
CA-133001-10
CA-I 47003-30
CA-168003-30
CA-21 000530
CA-222001 -00
CA-227001-30
CA-233001 -10
CA-233002-00
CA-31 0004-30
CA-322001 -10
CA-41 0001-00
CA-41 0002-10
CA-41 0003-10
CAP 1 OPF 5% 5OV 0805 SMT
CAP CER 15PF 10% 500V SL c14,49
Cl6,50
CAP CER 47PF 5% 5OV NPO SMT Cl 93
C29,30,64,
C65,187,
CAP SM IOOPF, 5%, 500V Cl47
CAP CER IOOPF 5% 5OV NPO SM C40,41,43,
C5,6,9,18,
CAP SM 330PF 5% 500V
CAP 470PF 5% 5OV 1206 SMT c53,99,100
Cl45,146
Cl ,2,4,17, c119,121,
Cl48,181,
Cl82,186,
Cl88
C26?36,37*
C52,61,
CAP CER 680PF 5% 5OV NPO SM C25,60,68,
CAP ,001 UF 5% 5OV 1206 SMT
C98
Cl20,124,
Cl95,?96
C75,81,85,
CAP CER Y .0022UF 20% 125VAC Cl22,127
CAP CER .0027UF 10% IOOV 0805 ClO8,109,
Cl28
C20,23,24,
C55,58,59,
CAP MYLAR .0033UF 10% IOOV Cl13
CAP CER Y .0033UF 20% 125VAC C115,118
CAP 01 UF 10% 5OV 1206 SMT C95,96
CAP MYLAR .022UF 10% IOOV C27,62
CAP MET POLY X.lUF 20% 250V Cl26
CAP MYLAR .lUF 5% IOOV c47
C8,12,44,
CAP MET POLY .lUF 10% 250V
PLX 3002 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
CA-41 0006-30
CA-41 001 I-00
CA-422001-10
CA-447001 -00
CA-447003-00
CA-51 000530
CA-51 0006-00
CA-610002-10
CA-647001 -10
CA-647002-1 0
PLX 3002 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
Rl55,LDl,
REF.R30,
PL-000135-00 INSULATOR, MICA 1.25” X 1.75” REF:Q96,97
PL-905156-SP SPACER,ROUND,NYLON,#6,0.155 REF.L1,2
PT.1 25000-AT RES VAR IT 250 20% 0.15W CAR VR43,166
PT-31 OOOO-CR RES VAR IT 1 OK 20% 0.2W W/DE VR2,121
QD-000014-QD DIODE TO220 ULTRAFAST 200V D21,22,46,
D47,74175,
QD-000014-QD DIODE TO220 ULTRAFAST 200V D80,81
QD-000021 -QD 1 N4740 1 OV ZENER 1 W
QD-000031-QD FET NCHAN TO220 60V 50A
D7,32,88
Q38,41,831
Q86
QD-000042-00 DIODE RECT ULTRAFAST 400V 3 D70,71
QD-000052-00 LED GRN T-l LD2,3,4,7,
LD8,9,11
QD-000053-00 LED YEL T-l
QD-000054-00 LED RED T-l
LDl,6
LD5,lO
OD-000062-10 XISTOR NPN TO-92 40V 0 2A 1.5 Q20,65
QD-000063-10 XISTOR PNP TO-92 40V 0 2A 1.5
Q21,66
QD-000076-00 XISTOR NPN TO-220 250V
QD-000077-00 XISTOR PNP TO-220 250V
Q27,72
Q26,71
QD-000102-30 DIODE SW lN4148 SMT 75V 75M Dl-5,8,9,
DIO-12,14,
Dl5,17,18,
D23-30,33,
QD-000103-30 XISTOR NPN SMT 40V .2A .2W
D34-37,39,
D40,42,43,
D48-52,55,
D59,63-65,
D67,69,89,
D90,91,93,
D94
Ql3,15,18,
Q25,30,32,
Q49,50,52,
QD-000104-30 XISTOR PNP SMT 40V .2A 2W
Q5,7>8,%
Q53154,581
Q60,63,70,
Q75,77,89?
Q90,92,93,
Q95
Ql-4,6,10,
PLX 3002 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
QD-000153-00 DIOD RECT TO247 UFAST 400V 3 D72,73,84,
QD-000154-00 XISTOR NPN TO-220 230V
D85
Ql9,64
QD-000155-00 XISTOR PNP TO-220 230V Q22,67
QD-000156-00 XISTOR PNP TO-220 1OOV 3A 40 Q91
QD-000169-00 XISTOR IGBT TO-247AC 600V 55 Q96,97
QD-000170-00 DIODE BRIDGE RECT 600V 5OA BRI
Q78287,88,
Q94,98,99
QD-000105-30 XISTOR NPN SMT 300V .2A .2W
Ql6,61
QD-000106-30 XISTOR PNP SMT 300V .2A .2W
Ql7,62
QD-000108-30 DIODE SMT SWITCH 200V .2A 50 Dl3,16,38,
QD-0001 IO-30 DIODE ZNR 6.2V 5% .3W SMT
QD-000113-30 DIODE ZNR 1OV 5% .3W SMT
QD-000115-30 DIODE SMT RECT 600V 1A
D41,61,68,
D78,79
D56,92
D66
QD-000116-30 DIODE RECT SMT 200V IA
D58,60166
D62,76,77,
D82,83
QD-000152-10 DIODE ZNR 12V 5% 1 W 1 N4742A D57
PLX 3002 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
PLX 3002 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
RE-015004-10 RES MOFP 150 5% 2W MINI
RE-020002-30 RES SMT 200 1% l/lOW 1OOV
RE-027401-30 RES SMT274 1% l/lOW IOOV
RE-038301-30 RES SMT 383 1% l/lOW IOOV
RE-047001-10 RES MOFP 470 5% 2W MINI
RE-047502.30
RES SMT 475 1% 1 /I OW 1 OOV l/lOW IOOV
RE-063402-30 RES SMT 634 1% 1/8W 1206
RE-082001-10 RES MOFP 820 5% 2W MINI
RE-090901-30 909 l/lOW 1% 1OOV SMT
RE-‘10006-30 RES SMT 1 OOK 1% 1/8W 1206
RE-115002-30 RES SMT 1.5OK 1% l/lOW 1 OOV
RE-117401-30 RES MF 1.74K 1% l/lOW 0805
RE-120002-30 RES SMT 2 OOK 1% IIIOW IOOV
RE-122103-30 RES SMT
PLX 3002 PCB ASSEMBLY (12OV) Cont’d
Part Number Description Reference
RE-339201-30 RES SM-r 392K 1% l/lOW IOOV
R335,341,
R342,343
R52,54,57,
R5a,l75!
Rl45,la9,
RI 92,260,
RE-34a702-30 RES
MF
4a7K
I
% 1law
I
2 0 6
R24,66,69,
R263,340
R321,322,
R326,32a
RE-375005-BM RES MF 750K 2% 1/2W R339,371
RE-410001-30
R E S
SMT 1.0
M E G
OHM 5% i/aw R2a9,292 sc-063ioo-PP #6-20 x 5/a*t *~ABO* TYPE
I
XRECE sc-oai IOI-SP #a-la x uat*, TYPE
I
P/P
B
L A
C K
SW-000029-S RELAY, SPKR PROTECT,SPDT,2 Kl
SW-000053-00 SWITCH DIP IO-POS, TALL SW1
WC-O 5Ola-JW JMPR INS 0.5” IaAWG SLD WHT Jl20
WC-000001-10 JUMPER INS .6” 22AWG SOLID W R224
WC-000103-00 CABLE ASSY, 20 PIN 9”L
WC-0001 15-00 AC SWITCH WIRE, BLK, LONG
Jl4-15
J3-4,J5-6,
REF.ES2,
-rO SWITCH
WC-0001 15-01 AC SWI-I-CH WIRE, RED, SHORT REF.ESl,
WC-0001 17-00 SPEAKER WIRE, BLACK
-rO SWITCH
El2A-12C
WC-0001 17-01 SPEAKER WIRE, WHITE
REF:
E9A-9C
REF:
WC-0001 17-02 SPEAKER WIRE, GREY
WC-0001 17-03 SPEAKER WIRE, BLACK
W C
-0001 la-00
W I R E
ASHY+ BLK, LONG
EIIA-IIC
REF:
EIOA-IOC
REF:
EHI-EH2
W C
- 0 0 0 1 la-01
W I R E
ASSY,
R E D
, SHORT
REF.
ELI-El2OA
REF:
XF-000005-00 BEAD FERRITE W/2OAWG LEAD L7-I 2
XF-000023-00 CHOKE COMMON MODE 2.2MH L3,4
XF-000050-00 XFMR, PWR, PLX3002 (12OV)
XF-000087-00 X F M R , PWR, PLX3002 (IOOV)
X F - 0 0 0 0 6 1 - 0 0
T2
T2
PLX 3002 PCB ASSEMBLY (230V) Cont’d
46
PLX 3002 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
Cl.50
CA-722001 -10 CAP LYTIC RL 220UF 20% 1 OV N C91,92
CA-747001 -10 CAP LYIC RL 470UF 20% 16V Cl31
C73,74,76, c771a2>a3t
CA-747004-00 CAP LY-rlC RL 470UF 20% 1 OOV Cl 52,153,
Cl59,160,
Cl65,166,
CA-747063-AE CAP LYIC RL 470UF 20% 63V
Cl69,170, c173,174 c151.154, cl5a,l61,
Cl64,167, cl6a,l71,
Cl72,175
CA-a22200-AE CAP LYTIC RL 2200UF 20% 200V Cl32,133,
CA-a22200-AE CAP LYTIC RL 2200UF 20% 200V Cl36,137, c140,141
CH-000102-00 HEAl-SlNK, AUDIO, PLX
CH-000103-00 SPRING, CLAMP, 2 HOLE
CH-000104-00 HEATSINK PS PLX
CH-000111-00 BRACKT,OU-rPUT PCB PLC PLATFORM
CH-000114-00 CLAMP, 2 FINGER PLX
CO-000036-CO SPEAKONS, PC MOUNT J7,a
CO-000106-00 CONN HD15 PIN RTANGLE PC M J17
CO-00014a-00 CONN XLR F VERT PCB J2,lO
CO-0001 55-00 HEADER PCB ,100 2-POSIION J13
CO-000161-00 CONN BLK HDR 3-PIN EURO OPE Jl6,la
CO-000162-00 BNDG POST A, DUAL SLOT, PLX
CO-000163-00 BNDG POST B, DUAL SLOT, PLX
CO-3001 12-PJ JACK 1/4” PHONE DBLOPEN CKl- Jl,9
HW-OOOOOI-FC FUSE CLIPS REF:Fl
IC-000024-00 IC REG PWM 40V 0. IA SG3525A Ul9
IC-000046-30 IC LIN DUAL OP AMP TLO72 SO-a Ull ,I2
IC-000047-30 IC LIN DUAL COMP LM393 SO-a UIO ic-00004a-30 ic LIN D
U A L
0~
A M P
Mc3307a
IC-000051-00 IC OPTO-IS0 MOCalOl
Ul,6 u15,17
IC-000053-30 IC LIN SM-r DUAL TIMER LM556 U14
IC-000054-30 IC LIN SMT QUAD COMP LM339A U13
IC-000073-30 IC LIN DUAL OP AMP LMl3600
IC-000133-30 IC LIN COMP LM311
U3 u4,5,a,9
IC-000134-00 IC CMOS HV DRVR lR2110 u l a
IC-000135-00 IC LIN PWM SWITCH TOP 210 U16
IC-005532-OP IC LIN DUAL OP AMP 5532 EX/MP U2,7
MS-00004a-HS HEAT SINK, ISOL TO-220 REF:Q91
MS-150250-FU FUSE 15A 250V 3AG FAST CER F l
PC-000531-00 PCB MAIN PLX
PL-00009a-00
I N
S
U
L A
T O R
, ~0-220, PLY
PL-000114-00 INSULATOR, IGB-I-/RECT HS, PLX
PL-000117-00 INSULATOR, TO-247, PLX
PL-000126-00 SPRING, SEAT, PLX
PL-00012a-00 SPACER, LED, ,276” LD2-11
Rl55,LDl,
REF:R30,
PL-000135-00 INSULATOR, MICA 1.25” X 1.75” REF:Q96,97
PL-905156-SP SPACER,ROUND,NYLON,#6,0.155 REF:Ll,2
P-f-l 25000-AT RES VAR IT 250 20% 0.15W CAR VR43,166
PT-310000-CR RES VAR IT IOK 20% 0.2W W/DE VR2,121
QD-000014-QD DIODE TO220 ULTRAFAST 200V D21,22,46,
D47?74!75,
Dao,ai
PLX 3002 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
QD-000021 -QD 1 N4740 I OV ZENER
1 W
QD-000031-QD FE-r NCHAN TO220 60V 5OA
D7,32,aa
Q3a,41 !a3,
Qa6
QD-000042-00 DIODE RECT ULTRAFAST 400V 3 D70,71
QD-000052-00 LED GRN -r-l LD2,3,4,7,
QD-000053-00 LED YEL -r-l
QD-000054-00 LED RED -r-l
LDa,9,11
LDI ,6
LD5,lO
QD-000062-10 XIS-TOR NPN TO-92 40V 0.2A 1.5 Q20,65
QD-000063-10 XlSl-OR PNP TO-92 40V 0 2A 1.5
Q21,66
QD-000076-00 XlSl-OR NPN TO-220 250V
QD-000077-00 XlSl-OR PNP TO-220 250V
Q27,72
Q26,71
QD-000102-30 DIODE SW lN414a SM-f 75V 75M Dl-5,a,9,
DIO-12,14,
Dl5,17,la,
QD-000102-30 DIODE SW lN414a SM-r 75V 75M D23-30,33,
D34-37,39,
D40342?43>
D4a-52,55,
D59,63-65,
QD-000103-30 XISTOR NPN SM-r 40V .2A .2W
QD-000104-30 XISTOR PNP SMT 40V .2A .2W
D67,69,a9,
D90,91,93,
D94
Ql3,15,la,
Q25,30,32,
Q49,50,52,
Q5,7,a,9,
Q53,54z5a>
Q60,63,70,
Q75177ga9,
Q90,92,93,
Q95
Ql-4,6,10,
Qll,l2,14,
Q23,24,31,
Q33*42,43,
Q44-4a,51,
Q55-57,59,
Q6a,69,76,
Q7ava7,aa,
Q94,9a,99
QD-000105-30 XlS-rOR NPN SM=T 300V ,2A .2W
Ql6,61
QD-000106-30 XISTOR PNP SMT 300V .2A .2W
Ql7,62
QD-OOOlOa-30 DIODE SMT SWITCH 200V .2A 50 Dl3,16,3a,
D41,61,6a,
QD-000110-30 DIODE ZNR 6.2V 5% .3W SMl-
QD-000113-30 DIODE ZNR 1 OV 5% .3W SM-r
QD-000115-30 DIODE SM-r REC-f 600V IA
D7a,79
D56,92
D66
D5a,6O,a6
QD-000116-30 DIODE REC-r SMT 200V IA D62,76,77,
Da2,a3
QD-000152-10 DIODE ZNR 12V 5%
1 W 1 N4742A D57
QD-000153-00 DIOD RECT TO247 UFAST 400V 3 D72,73,a4,
QD-000154-00 XISTOR NPN TO-220 230V
Da5
Ql9,64
QD-000155-00 XISTOR PNP TO-220 230V Q22,67
QD-000156-00 XISTOR PNP TO-220 IOOV 3A 40 Q91
QD-000169-00 XISTOR IGBT TO-247AC 600V 55 Q96,97
QD-000170-00 DIODE BRIDGE REC-r 600V 5OA BRl
QD-0003.9-Z-r DIODE ZNR 3.9V -rESTED D6,31
QD-001302-PN XISTOR PNP TO-3P 200V 15A Q2av34?36>
PLX 3002 PC6 ASSEMBLY (230V) Cont’d
Part Number Description
QD-003281-NP XISTOR NPN TO-3P 200V 15A
Reference
Q39,73,79,
Qal ,a4
Q29,35,37,
Q40,74,80,
RE-.04703-10 RES MOFP .47 5% 2W MINI
Rlll-114,
R211,212,
R214,215,
R217,218,
R220,222,
R225,226,
R230,231,
R234-237
RE-.15002-10
RE-.56002-10
RES MOFP 1.5 5% 2W MINI
RES MOFP 5.6 5% 2W MINI
Raa,a9,91,
R92,94,95,
R97,99,
Rll5,116,
R238,239,
R269
R203,221,
R354,355,
R373
Rao,9a,
RE-000210-NR THERMISTOR N-rC 15A CUR LIM R324
RE-000230-NR THERMISTOR N-rC IOK 5 % R30,155
RE-001003-30 RES SMT 10 OHM 5% IBW 1206 R314,353,
R356,358,
R359
RE-001502-10 RES MOFP 15 5% 2W MINI R209,210,
R213,216,
R350,367,
R368
Ra5-a7,90,
R93,208,
RE-003921-30 RES SMT 39.2 OHM 1% IBW 120 R246-249,
PLX 3002 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
RE-053602-30 RES SMT 536 1% l/lOW IOOV
RE-063402-30
RE-oa2001-lo
RE-110006-30
RE-110006-30
RES SMT 634 1% IBW 1206
RES M~FP a20 5% 2w
RE-090901-30 909 l/lOW 1% IOOV SM-r
M I N I
RES SMl- 1 .OOK 1% lk3W 1206
RES SM-r 1 .OOK 1% 1BW 1206
RE-115002-30 RES SMT 1.5OK 1% l/lOW IOOV
RE-117401-30 RES MF 1.74K 1% IIIOW 0805
RE-120002-30 RES SMT 2.OOK 1% l/l OW IOOV
RE-122103-30 RES SM-r 2.2lK 1% IIIOW IOOV
RE-130102-30
RE-I 39002-10
RES SMT 3.OlK 1% l/lOW 1OOV
RES MOFP 3.9K 5% 2W MINI
R2543255
R44,167,
R274-277>
R279_280
Rl51,160,
R28,37?
R291 r294
R22,146,
R361 s374
R370
R257
R282,287
Rlq7542g
Rll7,lla,
Rl28,165,
R232,250,
R252,369
RlOl,lO9,
Rl47,154,
Rl57,158,
Rl62,164,
R23,32,34,
R270>273,
R297-300
R35,39,41,
R310,311
RI71
R48,127,
Rl95,198,
R207,240,
R264,265,
R267,306,
R30?,347_
R348
R47~72~75~
R84,170,
R79,202
R219,22a,
R251
R96,105,
Rll,l7,40,
PLX 3002 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
RE-175002-30 RES SMT 7.5OK 1% l/lOW IOOV Rl20,132,
Rl40,161
RI 5j3ab
RE-176701-30 RES SMT 7.87K 1% IIIOW IOOV R360
RE-19090’2-30 RES SMT 9.09K 1% l/lOW IOOV R25a,266,
R272
RE-210003-30 RES SMT lO.OK 1% l/lOW 1OOV Rl21,305,
R336,33a,
R363,366,
R375j376
RE-212702-30 RES SMT 12 7K 1% l/lOW IOOV RlO6,133,
Rl34,139,
RE-212702-30 RES SMT 12.7K 1% IIIOW IOOV Rl4,16,19,
Rl42,159,
Rl6a,l69,
Rlaa,227j
R241.245,
R259,329,
R337
R36,45,46,
R65,104,
RE-215002-30 RES SMT 15,OK 1% l/lOW IOOV R25,14a,
R262,365
RE-216501-CM RES MF 16 5K 1% 1/2W R31,153
RE-220002-30 RES SMT 2O.OK 1% l/lOW IOOV Rla,l41,
PLX 3002 PCB ASSEMBLY (230V) Cont’d
Part Number Description Reference
RE-348702-30
RE-375005-BM
RE-410001-30
RES
MF
4a7K
I
% ilaw 1 2 0 6 R321,322,
R326,32a
RES MF 750K 2% 1/2W R339,371
RES SMT 1 .O MEG OHM 5% l/aW R2a9,292
SC-0631 OO-PP sc-oai iol-SP
SW-000029-s
SW-000053-00 wc-o.5ola-Jw
WC-000001 -10
WC-0001 03-00
WC-0001 03-00
WC-0001 15-00
#6-20 x 5/afs ~*AB**
T Y P E I X R E C E
#a-l a X 5ia”z TYPE 1 PIP BLACK
RELAY, SPKR PROTECT,SPDT,2 Kl
SWITCH DIP IO-POS, TALL SW1
JMPR INS 0.5” 1aAWG SLD WHT J240
JUMPER INS .6” 22AWG SOLID W R224
CABLE ASSY, 20 PIN 9”L
CABLE ASSY, 20 PIN 9”L
AC SWITCH WIRE, BLK, LONG
Jl4-15
J3-4,J5-6,
REF:ES2,
TO SWITCH
WC-0001 15-01
WC-0001 17-00
WC-0001 17-01
WC-0001 17-02
WC-0001 17-03
48
RE-247503.30 RES SMT 47.5K 1% l/lOW IOOV RI49
R2,26,43,
RE-310002-30 RES SMT IOOK 1% l/lOW IOOV
RE-310003-30 RES SMT IOOK 5% l/aw 1206
RI56
R33,119,
RI 76,196,
Rl97,26a,
R344,345
RE-315002-30
RES MF
15OK 1% l/aw 1 2 0 6
R51,53,731
R74>174_
Rl77,lao,
Rlal,333,
RE-339201-30 RES SMT 392K 1% l/lOW IOOV
R335,341,
R3423343
R52,54,57,
R5a,l75,
Rl45,la9,
Rl92,260,
R24,66,69,
R263,340
Part Number Description Reference
CH-000097-00
CH-000100-00
CH-000112-00
LB-000052-00
LB-000053-00
LB-000077-00
LB-00021 3-00
LB-00021 5-00
LB-l 60226-05
Nw-3aoaol-iL
PL-000003-CP
PL-000040-PL
PL-000044-PL
PL-000054-00
PL-000066-00
PL-000095-00
PL-000096-00
SC-025000-PP
SC-060060-PS sc-oa2051 -PL
SW-000016-S
WC-0001 14-00
WP-000057-00
WP-000541-00
CHASSIS, PLX
HANDLE-EAR CASTING PLX
SHIELD, AC, PLX
LABEL, cUL APPROVAL
LBL, FRENCH, FUSE REPLACEMENT
LABEL,WARNlNG,HlGH ENERGY
LABEL, FACEPLATE PLX 3002
LABEL, INPUT/OUTPUT, PLX
LABEL, FUSE, UL CAUT. 25A 125V
3/aan
I N T E R N A L T O O T H
LOCKWASHER
AC CORD PROTECTOR
POT COVERS
BUSHING, STRAIN RELIEF
KNOB FAB.
CLIP XMAS-TREE SLG HEAD FASTEX
FAN INTERFACE PLX lNSULATOR,FAN DUCT, PLX
SCREW M2.5 X 6MM TYPE 1 PH BLK
SCREW 6-32 X .375 SEMS EXTL ZC
SCREW,TAP,PAN PH#aX5/16” “B”BK
SPST SNAP IN POWER SWITCH
AC CORD ASSY PLX
FAN ASSY, 3.15” 24VDC W/5.5L”
PCB ASSY, PLX 3002 (12OV)
PLX 3002 CHASSIS ASSEMBLY (230V)
Part Number Description Reference
CH-000097-00 CHASSIS, PLX
CH-000100-00 HANDLE-EAR CASTING PLX
CH-000112-00 SHIELD, AC, PLX
LB-000053-00 LBL, FRENCH, FUSE REPLACEMENT
LB-000077-00 LABEL,WARNlNG,HlGH ENERGY
LB-000099-01 LABEL, CE LISTING
LB-00021 3-00 LABEL, FACEPLATE PLX 3002
LB-00021 5-00 LABEL, INPUT/OUTPUT, PLX
LB-160226-01 LABEL, FUSE, UL CAUT. 15A 250V
NW-380801.IL 3/8” INTERNAL TOOTH LOCKWASHER
PL-000003-CP AC CORD PROTECTOR
PL-000024-00 STRAIN RELlEF,LiQ.TlGHT,HEYCO
PL-000040-PL POT COVERS
PL-000054-00 KNOB FAB.
PL-000055-00 EXPORT BINDING POST PLUG(RED)
PL-000056-00 EXPORT BINDING POST PLUG(BLK)
PL-000066-00 CLIP XMAS-TREE SLG HEAD FASTEX
PL-000095-00 FAN INTERFACE PLX
PL-000096-00 lNSULATOR,FAN DUCT, PLX
SC-025000-PP SCREW M2.5 X 6MM TYPE 1 PH BLK
SC-060060-PS SCREW 6-32 X ,375 SEMS EXTL ZC
SC-082051-PL SCREW,TAP,PAN PH#8X5/16”“B”BK
SW-000016-S SPST SNAP IN POWER SWITCH
WC-000134-00 AC CORD ASSY, 23OV, PLX
WP-000057-00 FAN ASSY, 3.15” 24VDC W/5.5L”
WP-000541-02 PCB ASSY, PLX 3002 (230V)
49
50
PLX Series
Semiconductor Identification
DRIVER TRANSISTORS
2SC4793 NPN I2SAl837 PNP lRFZ44
TMOS FET
G
-6
TMOS Power Field Effect Transistor
43
,
’
AZ
0 lRFZ4l
!?
G D S
OP-AMP
Dual Operational Amplifier
NE5532AN
BCE
POWER TRANSISTORS
2SC3281 NPN I2SAl302 PNP
OP-AMP
TL072
Dual Operational Amplifier l
C E
SMALL SIGNAL
TRANSISTORS
2N3904 NPN I2N3906 PNP
C
TIMER
Dual Timer
PLX Series
Semiconductor Identification
LM556CM
PWM Switch
PWM MOSFET Gate Driver
TOP21 0
OP-AMP
LMI 3600
Dual Transconductance Operational Amplifier
OP-AMP
MC33078
Dual Low Noise Operational Amplifier
COMPARATOR
Voltage Comparator
LM311
OPTO-ISOLATOR
Gallium Arsenide LED Coupled to
Moc8lol
Phototransistor.
51
52
IGBT
PLX2402,
PLX Series
Semiconductor Identification
lRG4PC5OU output
High side floating supply sumlv
COMPARATOR
SOIC Quad Comparator
LM339AM
SCREW, #8 X 5/16’L 7
3 REQD
HANDLE-EAR
2 REDO
KNOB J
2 REW
FACEPLATE LABEL
CHASSIS ASSEMBLY l
H E X N U T (NW-3BOBO3-HN) P A R T O F 1/4- P H O N E J A C K O N ITEM 3 9 ( P C B A S S Y ) .
1. THIS DRAMNG U S E D I N C O N J U N C T I O N %lTH S C H E M A T I C DWGs M A I N P C B A S S Y S H - 0 0 0 5 4 1 - 0 0 ,
WRING D I A G R A M S H - 0 0 0 5 4 0 - 0 0 A N D F I N A L A S S Y FG-000540-XX.
,.“..ce,c -
- cCREW, #6-32 X 3/6* L., SEMS
RECQ
MEW
A - A
Fi
G g
z
H
-----------
_-_-_-_-
Q
55
PLX MAIN MOOULE ASSEMBLY smm,
+6-20 Y 5/r I_
1.w ’
D
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
7
INPUT
LED
FILTER
GAIN
POT
DISPLAY
THERMAL
SENSING
LOOP GAIN
FEEDBACK
CURRENT
SPLITTER
POSITIVE
OUTPUTS
CLIP
LIMITING
NEGATIVE
OUTPUTS
C
6
SPKR
OUTPUT
CHANNEL A
AUDIO CIRCUITS
SHEET 2
5 4 3
INPUT FILTER
GAIN
POT
BR MONO ROUTING
LED
DISPLAY
THERMAL
SENSING
LOOP GAIN
FEEDBACK
CURRENT
SPLITTER
POSITIVE
OUTPUTS
NEGATIVE
OUTPUTS
CLIP
LIMITING
SPKR
OUTPUT
CHANNEL B
AUDIO CIRCUITS
SHEET 3
2 1
D
C
B
OP-AMP
SUPPLIES
POWER
SUPPLY
BLEEDERS
DC FAULT
SHUTDOWN
THERMAL
SHUTDOWN
FAN SPEED
TO MUTE
CONTROL
SUPPORT AND
PROTECTION
CIRCUITS
SHEET 4
A
2. COMPONENTS WITH VALUE PREFIXED WITH A "^" REPRESENT SMT COMPONENTS.
1. THIS DRAWING USED IN CONJUNCTION WITH ASSEMBLY WP-001203-00.
NOTES: UNLESS OTHERWISE SPECIFIED
8 7 6 5
EMI
FILTER
SHUTDOWN
TRIGGERS
INRUSH
RELAY
RELAY
CONTROL
AC
RECT
BIAS
SUPPLY
OVERCURRENT
DETECTION
MAIN
FILTERS
IGBT
SWITCHES
HIGH FREQ
TRANSFORMER
ISOLATED
HIGH FREQ
RECTIFIERS,
FILTER CAPS
GATE
DRIVE
SWITCHING
OSCILLATOR
SWITCHING
POWER
SUPPLY
SHEET 5
VOLTAGE
120/230V
100V
TABULATION BLOCK
VARIABLE
R321, 322, 326, 328 - 487K, ^R_1206
R321, 322, 326, 328 - 392K, ^R_1206
B
4
QTY ITEM NO.
PART NO.
WP-001203-00
NEXT ASSY
APPLICATION
PLX 1202
USED ON
3
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
DIMENSIONS PER ANSI Y14.5-1982
TOLERANCES ARE:
DECIMALS DECIMALS ANGLES
O
.XX +.XXX
+-
DEBURR EDGES .XXX R MAX
MATERIAL
CONTRACT NO.
APPROVALS
DRAWN
PAT QUILTER
CHECKED
FINISH ISSUED
CAD SEED FILE NO.
DO NOT SCALE DRAWING
DATE
5-15-98
DESCRIPTION
PARTS LIST
PLOT DATE:
Fri Dec 11, 1998
2
VENDOR
AUDIO PRODUCTS, INC.
COSTA MESA, CALIFORNIA
SIZE FSCM NO.
D
SCALE
NONE
SCHEMATIC DIAGRAM
PLX 1202
CAD FILE NO.
DWG NO.
SH-001203-00 plx1202.sch
SHEET
P:\TANGOPRO\PLX\PLX1202
1
1 OF 5
REV
B
A
57
D
C
B
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
INPUT AND FILTER SECTION, CH A
J1
J2
+XLR_B
3
1
2
R
T
S
RING
TIP
N1
3
2
J3:3
J3:2
J3:1
1
4
J3:4
J4:1
J4:4
A-1 GND
A-4, GND
A-2 +A
A-3 -A
-XLR_B
INPUTS IN PARALLEL
- SH 3
SH 4, EURO-INPUTS
-IN_CH-A +IN_CH-A
N4
J4:3
3
-IN_DPA
R5 NEG INPUT
75
^R_0805
R9
5.60K-.1%
J4:2
2
C195
.001-5%
^C_1206
+13IN
SW1:4
14
DIP-10
20
J3:20
1
4
4
N25
J4:20
A-20, +13V
A1
N6
POS INPUT
R6
75
^R_0805
R8
5.60K-.1%
20
10
+IN_DPA
DATAPORT CONNECTED TO INPUT
AS USUAL TO MINIMIZE CROSSTALK
WHEN USING REGULAR INPUTS
DP-PAR-F
J3:10 J4:10
10
SH 4
A-10, LED-PAR
N27
+13VCL
N8 C5
100pF-50V-5%
^C_0805
R12
5.60K-.1% A1
N10
3 +
+14VIC SIGNAL
POLARITY
INVERTED
U1:1
MC33078-SMT
1
2 -
N9
-14VIC
R13
5.60K-.1%
7
C6
100pF-50V-5%
^C_0805
C7
C8
.1-5%
R17
4.75K
^R_0805
N12
C12
.1-5%
N16
6
A1
J4:6
SW1:3
13
DIP-10
3
A-6, GND
J3:6
6
N463
SW1:2
12
DIP-10
2
47-10NP-10%
2 POLE CASCADED ROLLOFF
-0.15dB, 20Hz. -0.4dB, 10Hz.
DIP SWITCH TABLE, 10-POS
1 - CLIP LIM, CH-A
2 - LF FILT, CH-A
3 - 30 HZ LF, CH-A
4 - PAR INPUT LED
5 - PAR INPUTS, +
6 - PAR INPUTS, -
7 - BR MONO
8 - 30 HZ LF, CH B
9 - LF FILT, CH B
10- CLIP LIM CH B
6
N13 R25
15.0K
^R_0805
N17
5 + U1:2
7
6 -
MC33078-SMT
SIGNAL
POLARITY
INVERTED
THERMAL
AND BIAS
SENSING
AMP LOOP GAIN -- 32DB REVISION
USE SAME VALUE AS PLC-2
NTCBUS
N45 R41
1.50K
^R_0805
N230
R101
1.50K
^R_0805
PARALLEL
INPUT SW.
STATUS LED
N28
N29
N31
12
J5:12
4
J5:4
W
N32
3
J5:3
GAIN
N33 J5:1
1
J5:2
2
J6:12
12
J6:4
4
J6:3
3
J6:1
J6:2
2
1
N26
N35
N34
A1
R-parallel, 7.5K, 10K, 4.7K, = 2.24K
R15
7.50K
^R_0805 R14
12.7K
^R_0805
C9
100pF-50V-5%
^C_0805
3 +
U2:1
NE5532
1
R11
4.75K
^R_0805
2 -
N37
R16
12.7K
^R_0805
A1
BR MONO FEED, SH 3
CH_A_SIG
DISCUSS STAR GND
SIGNAL
POLARITY
INVERTED
R22
A1
536
^R_0805
C11
47-10NP-10%
R23
1.50K
^R_0805
P
R29
5.90K
^R_0805
ROUTE TO SPKR OUTPUT.
R226 = 5.90K for PLC-2
P1
+14VIC
N40
5 +
N41
C14
6 -
U2:2
NE5532
7
N42
10pF-50V-5%
^C_0805
-14VIC
U_OPAMP_DUAL1
R31
16.5K-1/2W-1%
N473
C16
15pF
SPKR_BUS_A
N44
N43
CCW
250
VR43
4148 ^D_SOT-23
TH-SUBC-A
N49
CW
-15NTC
LED-SIGNAL DISPLAY
SH 3
+14_DISP N110
8
J5:8
Q1
3906
^Q_BJTP_SOT-23
J6:8
8
SH 4
+14VIC
5
1
SW1:1
DIP-10
J3:5
11
J4:5
A-5, CLIP A
+13IN
5
N126
+13VCL
Q12
3906
R106
12.7K
^R_0805
A
Q2
3906
^Q_BJTP_SOT-23
Q3
3906
^Q_BJTP_SOT-23
Q4
3906
^Q_BJTP_SOT-23
CLIP
RED
LD5
8
N119
R3 N115
D1
4.75K
^R_0805
4148
^D_SOT-23
Q5
3904
^Q_BJTN_SOT-23
5
J5:5
6
J5:6
N118
D2
PWR GND 4148
^D_SOT-23
J6:5
J6:6
6
5
P
N120
N116
^U_LM13600
7
J5:7
7
7
U3:1
LM13600M
5
N130
J6:7
7
N121
-
+
2
3
4
R18
20.0K
^R_0805
N127
Q6
3906
^Q_BJTP_SOT-23
N124
100 ^R_0805
P
N128
Q7
3904
Q10
3906
^Q_BJTP_SOT-23
N133
^Q_BJTN_SOT-23 Q8
3904
^Q_BJTN_SOT-23
N134
-13VCL
6
Q9
3904
^Q_BJTN_SOT-23
N136
P
^Q_BJTP_SOT-23
N87 D89
4148
^D_SOT-23
MUTE_HI
SH 4
Q13
3904
^Q_BJTN_SOT-23
R44
383
^R_0805
5
5
N48
+15NTC
P
CLIP-LIMIT
PROCESSOR
N50
PROT
SH 3
N88
DATAPORT, SH 4, CLIP A
N138 CLIP_A
POS STEP DRIVER
C20
.0027
^C_0805
R48
2.00K
^R_0805
POSREF
R50
15.4K
^R_1206
DC_SENSE
SH 4
N139
NEGREF
4
.36W at full clip
4
N55
N141
N56
N57
N58
POS OUTPUT SECTION
N144
NEG OUTPUT SECTION
N145
NEG STEP DRIVER
N59
3
3
N146
N147
N60
P
N61
N63
Q14
3906
^Q_BJTP_SOT-23
Q24
3906
N66
^Q_BJTP_SOT-23
Q18
N67
R76
12.7K
^R_0805
D9
R81 274
N68
100K ^R_1206
4148
^D_SOT-23
D14
Q26
MJE15033
4148
^D_SOT-23
N71
2SA1302
Q28
N64 3904
^Q_BJTN_SOT-23
N477
+15NTC N78
P
R381
D16
100
^R_0805
Q19
2SC4793
P
Q20
2N3904
200V-.2A-50NS
^D_SOT-23
N90
FULL MUTE, 5.7V
MUTE+
Q16
300V-.2A
SEE SH 4
^Q_BJTN_SOT-23
N91
N84
680pF ^C_0805
N85
SPKR_BUS_A
C27
.022
R367
15-2W
P
P
Q15
3904
N92
Q17
300V-.2A
^Q_BJTP_SOT-23
N97
P
N478
Q21
N93
2N3906
N94
-15NTC
N96
.1-50V ^C_1206
R382
100
^R_0805
Q23
3906
^Q_BJTP_SOT-23
Q22
2SA1837
N95
^Q_BJTN_SOT-23
N98
Q25
3904
^Q_BJTN_SOT-23
N99
470pF ^C_1206
R80
5.6-2W
D13
200V-.2A-50NS
^D_SOT-23
N100
N101 D12
4148
^D_SOT-23
4148 ^D_SOT-23
Q27
MJE15032
R77
N102
N103
12.7K
^R_0805
D8
4148
^D_SOT-23
R82 274
P
N104
Q29
2SC3281
L-Z_A1
2SA1302
I-MON SH 4
R98
5.6-2W
Q36
N81
L1
1
2UH-14GA-AIR
2
N86
PWR-GND, TO SUPPLY CT
Q37
2SC3281
N80
2SA1302
Q39
D
Q40
2SC3281
N62
SPKR-A
E9A
E10A E10B
-HI-RAIL
P1
V-NEGSTEP
E9B
2
2
N75
N461
N108
D21
JUMPER
+HI-RAIL
D22
JUMPER
+MID-RAIL
E9C
E10C
-MID-RAIL
D
N459
N109
SCALE
BR-POS
FROM CH B
SHEET 3
BR-NEG
NONE
EMI_G
SIZE FSCM NO.
1
CAD FILE NO.
DWG NO.
SH-001203-00 plx1202a.sch
SHEET
1
2 OF 5
58
REV
B
D
C
B
A
D
C
B
J9
J10
-13VCL
2
3
1
T
S
R RING
TIP
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
SH 4, EURO-INPUTS
-IN_CH-B +IN_CH-B
18
A-18, -B
N475
J3:18 J4:18
J4:19
19
J3:19
A-19, +B
18
19
R123
75
^R_0805
N457
17
J3:17 J4:17
A-17, GND
17
A1
+XLR_B -XLR_B
SH 2, INPUT-PARALLEL SW
13
J5:13
C-13, BR-L
J6:13
13
Q43
3906
^Q_BJTP_SOT-23
N249
N251
-IN_DPB
N151
NEG INPUT R129
5.60K-.1%
3 +
2 -
7
INPUT AND FILTER SECTION, CH B
N152
C40
100pF-50V-5%
^C_0805
R135
5.60K-.1%
+14VIC
1
U6:1
MC33078-SMT
A1
N155 C44
SIGNAL
POLARITY
INVERTED
.1-5%
R138
4.75K
^R_0805
N161
N156
C47
.1-5%
N159
6
DIP SWITCH TABLE, 10-POS
1 - CLIP LIM, CH-A
2 - LF FILT, CH-A
3 - 30 HZ LF, CH-A
4 - PAR INPUT LED
5 - PAR INPUTS, +
6 - PAR INPUTS, -
7 - BR MONO
8 - 30 HZ LF, CH B
9 - LF FILT, CH B
10- CLIP LIM CH B
R148
15.0K
^R_0805
N158
5 + U6:2
7
6 -
MC33078-SMT
SIGNAL
POLARITY
INVERTED
.1-50V-10% ^C_1206
C196
.001-5%
^C_1206
11
J4:11 J3:11
A-11, BR-M
N177
POS INPUT
R124
75
^R_0805
R130
+IN_DPB
5.60K-.1%
N153
11
N178
7
SW1:7
DIP-10
17
+13IN
D24 N179
DP-BR-F
SH 4
4148
^D_SOT-23
LED-SIGNAL DISPLAY
R128
1.00K
^R_1206
N154
-14VIC
R136
5.60K-.1%
+14_DISP
N182
C41
100pF-50V-5%
^C_0805
BR MONO
STATUS
LED
15
J5:15 J6:15
C-14, BR-L
+13VCL
4148
^D_SOT-23
Q42
3906
^Q_BJTP_SOT-23
N181 D25 N183 R134
15
GAIN
17
J5:17
N185
W 18
J6:17
J5:18
19
J5:19
20
J5:20
17
4148
^D_SOT-23
J6:18
18
N186 R133
12.7K
^R_0805
12.7K
^R_0805
J6:19
J6:20
19
BR-MONO
CH B INPUT CLAMP
Q50
3904
^Q_BJTN_SOT-23
20
A1
BR-ON
SH 4
D23
CH_A_SIG
N194
R120
7.50K
^R_0805
R122
5.90K
^R_0805
N196
N195
Q46
3906
^Q_BJTP_SOT-23
A1
R127
2.00K
^R_0805
R132
7.50K
^R_0805
STEREO - CLAMPED
BR-MONO - OPEN
N197
R137
4.75K
^R_0805
N198
Q48
3906
^Q_BJTP_SOT-23
18
SW1:8
8
15
N162
J4:15
A1
DIP-10 N163
J3:15
A-15, GND
15
N164
19
SW1:9
DIP-10
9
N189
R140
7.50K
^R_0805
C43
100pF-50V-5%
^C_0805
3 +
U7:1
NE5532
1
2 -
U_OPAMP_DUAL1
N191 R139
12.7K
^R_0805
N157
A1
DISCUSS STAR GND
R146
A1
536
^R_0805
R152
5.90K
^R_0805
ROUTE TO SPKR OUTPUT.
R226 = 5.90K for PLC-2
P1
+14VIC
SIGNAL
POLARITY
INVERTED
C46
47-10NP-10%
R147
1.50K
^R_0805
N160
N201
+13IN
10
SW1:10
DIP-10
J3:16
16
20
J4:16
A-16, CLIP-B
16
THERMAL
AND BIAS
SENSING
N203
5 +
C49
6 -
P
10pF-50V-5%
^C_0805
-14VIC
R153
16.5K-1/2W-1%
U7:2
NE5532
7
NTCBUS
SPKR_BUS_B
C50
15pF
+13VCL
N202
N266
R109
1.50K
^R_0805
N204
N206
N208
R164
1.50K
^R_0805
250
VR166
CCW
Q57
3906
4148 ^D_SOT-23
5
TH-SUBC-B
N150
CW
-15NTC
A
Q44
3906
^Q_BJTP_SOT-23
N252
Q45
3906
^Q_BJTP_SOT-23
Q47
3906
^Q_BJTP_SOT-23
CLIP
RED N257
R125
4.75K
^R_0805
PWR GND
11
J5:11
N253
10
J5:10 J6:10
10
D26
4148
^D_SOT-23
Q49
3904
^Q_BJTN_SOT-23
J6:11
11
D27
4148
^D_SOT-23
P
N254
N256
N258
9
J5:9
10
U3:2
LM13600M
12
J6:9
9
R141
20.0K
^R_0805
N259
N270
-
+
14
15
13
Q51
3906
^Q_BJTP_SOT-23
N271
100 ^R_0805
P
N265
Q54
3904
^Q_BJTN_SOT-23
Q52
3904
Q55
3906
^Q_BJTP_SOT-23
N274
^Q_BJTN_SOT-23 Q53
3904
^Q_BJTN_SOT-23
N275
-13VCL
P
P
CLIP-LIMIT
PROCESSOR
+15NTC
N207
N209
^Q_BJTP_SOT-23
Q58
3904
^Q_BJTN_SOT-23
PROT
SH 2
DATAPORT, SH 4, CLIP B
N269 CLIP_B
R167
383
^R_0805
C55
.0027
^C_0805
R171
2.00K
^R_0805
R173
15.4K
^R_1206
DC_SENSE
SH 4
4
POS STEP DRIVER
N165
POSREF
N167
NEGREF
8
LD10
7 6 5
+HI-RAIL
MUTE+
SEE SH 4
P
P
Q59
3906
^Q_BJTP_SOT-23
P
N238
N210
Q61
300V-.2A
^Q_BJTN_SOT-23
N231
N232
Q62
300V-.2A
^Q_BJTP_SOT-23
N237
Q60
3904
^Q_BJTN_SOT-23
P
POS OUTPUT SECTION
P
N211
+15NTC
Q69
3906
N212
^Q_BJTP_SOT-23
N213
Q63
3904
^Q_BJTN_SOT-23
N479
N222
R199
12.7K
^R_0805
R204 274
100K ^R_1206
D34
4148
^D_SOT-23
N214
D39
Q71
MJE15033
4148
^D_SOT-23
D41
R383
100
^R_0805
Q64
2SC4793
N224
Q65
2N3904
N225
200V-.2A-50NS
^D_SOT-23
SPKR_BUS_B
2SA1302
Q73
N216
N221
L-Z_B1
2SA1302
Q81
I-MON-B, SH 4
N227
L2
1
2UH-14GA-AIR
2
R221
5.6-2W
N229
-15NTC
N233
680pF ^C_0805
N226 C62
.022
R368
15-2W
R203
470pF ^C_1206
5.6-2W
P
N480
R384
100
^R_0805
Q68
3906
^Q_BJTP_SOT-23
Q66
2N3906
N234
N235
Q67
2SA1837
N236
Q70
3904
^Q_BJTN_SOT-23
N239
N240
12.7K
^R_0805
D38
200V-.2A-50NS
^D_SOT-23
N242
4148 ^D_SOT-23
D37
Q72
MJE15032
4148
^D_SOT-23
R200
N243
N241
^C_0805 R191
D33
4148
^D_SOT-23
Q74
2SC3281
NEG OUTPUT SECTION
PWR-GND, TO SUPPLY CT
Q82
P
2SA1302
Q84
Q85
D
2SC3281 2SC3281
SPKR-B
E11A E11B
E12A E12B
P1
D47
JUMPER
+MID-RAIL
N248
D46
JUMPER
E11C
E12C
-MID-RAIL
EMI_G
E10
N464
N465
4
N166
N168
.36W at full clip
N276
N278
N169
N170
N277
N171
3
NEG STEP DRIVER
3
N279
N172
N280
N173
N174
2
V-NEGSTEP
-HI-RAIL
2
SIZE FSCM NO.
D
SCALE
NONE
BR-POS
TO CH A
SHEET 2
BR-NEG
1
CAD FILE NO.
DWG NO.
SH-001203-00
SHEET plx1202a.sch
1
3 OF 5
REV
B
D
C
B
A
59
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
+15V
7
N282
6 5
+HI-RAIL
N286 N287
D
A
OPAMP POWER SUPPLIES
C
B
BR-ON
SH 3
D48
4148
^D_SOT-23
^Q_BJTP_SOT-23
R242
20.0K
^R_0805
P
Q87
3906
C71
DC_SENSE
SH 2, 3
47-10NP-10%
D50 N338
4148
^D_SOT-23
-DC THRESH, -4V
D49
4148
^D_SOT-23
N339
+DC THRESH 4V
DC MUTING
POWER LED
ON DISPLAY PCB
N349
14
J5:14 J6:14
14
N348
N350
16
J5:16 J6:16
16
+13VCL +14VIC
N283
+11V
P
-13VCL
-15V
N335
TO SHUTDOWN OPTOCOUPLER, SH 5 (6V)
DC-OFF
TO OPTOCOUPLER LED
1.6V OF HYSTERESIS
-14VIC
N284
DP - STBY
+MID-RAIL
N468
N285
-11V
A1
POSREF
N288
N322
V-NEGSTEP
N469
PLC-2 USES MID RAILS ONLY
+MID-RAIL
TO PWR SUPPLY C-T
P1
NEGREF
D88
JUMPER
-MID-RAIL
-HI-RAIL
+15NTC
P1
3 +
2 -
U10:1
^LM393-SMT
SH 5
V-STBY
POS RAIL
P
-15NTC
-MID-RAIL
NTCBUS
1
15V-SW
SEE SH 5
N340
D51
4148
^D_SOT-23
N341
Q88
3906
D55
4148
^D_SOT-23
FAN SPEED THRESHOLD
P
ON-OFF DELAY,
THERMAL THRESHOLD
THERM HYST
R263
392K
^R_0805
N345 R270
1.50K
^R_0805
FROM PWR SUPPLY OPTOCOUPLER, SH 5
PS-OL
TO SHEETS 2 AND 3
MUTE+
FULL MUTE, 5.7V
FULL CUTBACK, 2.8V, 1MA
N344
5 +
U10:2
7
6 -
^LM393-SMT
MUTE_HI
P1
N474
N334
R253
4.75K
^R_0805
N347 C85
.001-5%
^C_1206
Q89
3904
^Q_BJTN_SOT-23
R264
2.21K
^R_0805
R265
2.21K
^R_0805
N352
R267
2.21K
^R_0805
+15V
Q91
TIP 32C
N353
Q90 N355
3904
^Q_BJTN_SOT-23
P
2
1
J13:1
J13:2
+FAN
-FAN
8 7 6
FAN SPEED CONTROL
5
-15V
60
4
4
CH B V-MON, I-MON
N361
L-Z_B1
N360
OUTER COIL, 6T
ROUTE TO SPKR OUTPUT
P1
CH A V-MON, I-MON
N324
OUTER COIL, 6T
L-Z_A1
N323
SPKR-A
ROUTE TO SPKR OUTPUT
P1
SPKR-B
D
D
3 2 1
N289
+11V
DP-PAR-F
SH 2
D
DP-BR-F
SH 3
N291
V-MON CH A
(NEW BMF SUBCODE,
0-2V, 0.5V BITS)
INJECT V-DC
POST OPAMP,
NO GAIN SCALING
D
N290
-11V
SEE SH 2
TH-SUBC-A
D
I-MON CH A
(WITH SEPARATE CH A
THERMAL SUBCODE)
D
N356
+11V
N357
D
-11V
N327
N328
N329
N363
N364
N365
N69
N149
D
N330
N366
D
+13VCL
N358
D
SEE SH 3
TH-SUBC-B
I-MON CH B
(WITH SEP. CH B
THERMAL SUBCODE)
+15V
FOR 1/8 WATT:
110 MA, 1.1V MAX
+IN_DPB
-IN_DPB
+IN_CH-B
-IN_CH-B
+IN_CH-A
-IN_CH-A
A1
A1
V-MON CH B
(PWR-SUPPLY- ON
SUBCODE: .8-1.3V)
SCALE 13V TO 1V NOM
-IN_DPA
+IN_DPA
N293
N294
N295
N296
CLIP_A
SEE SH 2
N304
CLIP_B
N315
N316
N305
N306
N307
SET ID- R
N313
N297
N298
EURO-PLUG:
RAVE SIGNAL
FORMAT
+A
-A
GND
N299
N300
N301
N302
N303
N308
N310
N311
N312
N317 N318
N319
N314
DATAPORT
HD-15 JACK
-IN, A
C
+IN, B
+15V ??
D-REF
-IN, B
IDR
VMON-B
IMON-B
CLIP-B
STBY
VMON-A
IMON-A
CLIP-A
CHAS GND
+IN, A
B
N460
N320
N321
EURO-PLUG:
RAVE SIGNAL
FORMAT
+B
-B
GND
CH GND
D
A
3 2
SIZE FSCM NO.
D
SCALE NONE CAD FILE NO.
DWG NO.
SH-001203-00 plx1202a.sch
SHEET
1
4 OF 5
REV
B
D
C
B
A
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
7
INRUSH LIMITING RELAY.
QSC-COM, 30A, COIL 24V
MIN VOLT 18V, OK
N379
6
ES1
ES2
AC-SW
N381
5
PRI_HI
LINE FILTER SHIELD N378
6
4
5
3
600V-50A
BR1
J19
AC-HI
120, 240V
1
2
AC-LO
J20
1
2
N371
F1
25A-125V
N369
3
L3:1
1
N374
3
L4:1
1
N376
EH1
EH2
R324
10-OHM-20%
N380
E120B
2 AC1
AC2
3
T2:1
TRANSFORMER
QUIET END
P5 P6 P7
XF-79
C144
.47-400V
4
L3:2
2
N375
4
L4:2
CH-GND
STUD
2
N309
N377
240V, FULL
WAVE RECT
E240
EL1
120V, VOLT
DOUBLER
E120A
J120
PRI_LO
N384
N458
N472
PRI_LO
N372
Q92
3904
^Q_BJTN_SOT-23
N418
N370
IGBT HEAT SINK
E14
+18V
4148 ^D_SOT-23
RELAY 25MA
PRI_LO
N406
R326
487K
^R_1206
+VREF
3904
^Q_BJTN_SOT-23
NOM BUS VOLTAGE 340V (120-240VAC)
MIN BUS VOLTAGE 200-220V (75-150 VAC)
PRI_LO
8 -
9 +
U13:3
14
LM339
974K - 24.9K RES DIVIDER
340V NOM BUS = 8.67V
200V MIN BUS = 5.1V UV
Q93
N411
N410
^R_1206
C128
.0027
^C_0805
R328
487K
RELAY STARTS OFF LOW. 5V LINE
SETTLES HIGH BEFORE 16V > 8V,
BECAUSE TRIG IS LOW UP TO 10V
D91
4148
^D_SOT-23
N471
OFF-BUS VOLTAGES RISES
ONLY AFTER V-BIAS > 10V.
ENSURES THAT 556-TRIG
PIN STARTS LOW.
N412
N408
N419
4V NOM
R335
150K
^R_1206
N413
R334
100
^R_0805
TIME DELAY
3 SECONDS
UNDERVOLTAGE SHUTDOWN
TRIGGERS AT 5.1 V-REF
RESETS AT 5.6V (10% HYST)
R332 N409
39.2K
^R_0805
PRI_LO
5V NOM
R369
1.00K
^R_1206
LM339
13
U13:4
LM339
1
U13:2
+VREF
N414
PRI_LO
NON CRIT BYPASS
+VREF
PRI_LO
+
11
-
10
+
7
N444
-
6
N446
0V - RUN
5V - SHUTDOWN
8
TRIGGER
9
OUTPUT
10
11
CONTROL_V
12
THRESHOLD
13
RESET
DISCHARGE
.001-5% ^C_1206
4 -
5 +
N470
+16V
N445
U13:1
2
LM339
R340
392K
^R_0805
+16V
.1-50V-10% ^C_1206
N426
+18V
D62
MURS120T3
D63
4148
^D_SOT-23
D64
4148
^D_SOT-23
PRI_HI
R376
10.0K
^R_0805
PRI_LO
N117 R375
10.0K
^R_0805
Q99
3906
^Q_BJTP_SOT-23
N453 R374
536
^R_0805
D67
D65
4148
^D_SOT-23
D66
10V-.3W
^D_ZEN_SOT-23
4148
^D_SOT-23
+16V
PRI_LO
N424
N421
N422
D60
MURS160T3
^D_SMB
C127
.0022-250VAC
600V TRACE
PRI_LO
5 D
6 N/C
7 N/C
8 S
N/C
N/C
U16
TOP 210
C
S
2
1
4
3
5V NOM
N476
0.5-1 MA TO TRIGGER
U15
6
NC
5
1
4
NC
2
3
100PF @ 15KV ESD
100NF @ 15V BYPASS
.1-50V-10% ^C_1206
PRI_LO
DC-OFF
FROM DC SHUTDOWN,
SHEET 4
+6 V
N455
R353
10.0
^R_1206
N423
C142
100-25V
D68
^200V-.2A-50NS
^D_SOT-23
D69
4148
^D_SOT-23
+16V
R342
100K
^R_1206 N447
L6:2
3
PARALLEL WINDING ON
RESONANT INDUCTOR
4
R343
100K
^R_1206
N448
AVERAGE LIMITING HAS
SEVERAL SECOND TIME
CONSTANT TO REACH
2.4V THRESHOLD,
AVE CURRENT 20-25A
D61
^200V-.2A-50NS
^D_SOT-23
N450
Q95
3904
^Q_BJTN_SOT-23
1
U17
NC
2
3
NC
4
5
6
V-STBY
TO SH 4
+6 V
P
N452
PRI_LO PRI_LO
PS-OL
SH 4
4
1
L6:1
2
R372
56-2W
XF-79
T2:2
S11
S12
S13
S14
N388
N389
S15
S16
S17
N431
S18
N432
S19
S20
N433
P1
N429
N430
N387
3
Q96
IRG4PC40
G
N390
R359
10.0
^R_1206
D78
^200V-.2A-50NS
^D_SOT-23
N391
Q97
IRG4PC40
N392
G
R358
10.0
^R_1206
D79
^200V-.2A-50NS
^D_SOT-23
D74
200V-15A
D80
200V-15A
D75
200V-15A
D81
200V-15A
N438
TO TURN-OFF MUTING
SHEET 4 (FAN SPEED)
15V-SW
D76
MURS120T3
D82
MURS120T3
D77
MURS120T3
D83
MURS120T3
^D_SMB
SMT-B PKG OK
N435
N436
N437
N393
2 BEADS IN PAR HI RAIL
1 BEAD LO RAIL
L9
1
6UH-BEAD
2
L10
1
6UH-BEAD
2
NEW, LO-ESR, 2PL
N394
.1-50V-10% ^C_1206
+16V
N395
+15V
.1-50V-10% ^C_1206
P1
-15V
.1-50V-10% ^C_1206
PRI_LO
D86
MURS160T3
^D_SMB
+18V
4
1 LO
2 COM
3 VCC
U18
VSS
LIN
SD
5 VS
6 VB
7 HO
HIN
VDD
IR2110
14
13
12
8
11
9
10
USE THRU HOLE,
HIGHER WATTAGE
2
+HI-RAIL
+MID-RAIL
P1
-MID-RAIL
-HI-RAIL
+VREF
N441
R361
536
^R_0805
N442
N443
5
OUTPUT
4
1
RESET
3
CONTROL_V
2
THRESHOLD
DISCHARGE
PRI_LO
+16V
N401
PRI_LO
+VREF
C116
.1-50V-10%
^C_1206
Q98
3906
PRI_LO
N439
^Q_BJTP_SOT-23
6
TRIGGER
1
PRI_LO
N398
N397
.1-50V-10% ^C_1206
N402
+VREF
U19
16 VREF
15 VIN
14 OUTB
13 VC
-IN
+IN
SYNC
OSC.OUT
12 GND
11 OUTA
10 SHTDWN
9 COMP
CT
RT
DISCHG
SFT-SRT
SG3525AN
5
6
4
7
8
2
3
1
PRI_LO
N403 R364
100
^R_0805
8 7 6 5 4 3 2
SIZE FSCM NO.
D
NONE
CAD FILE NO.
DWG NO.
SH-001203-00
SHEET plx1202a.sch
1
5 OF 5
REV
B
D
C
B
A
61
D
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
7
INPUT
LED
FILTER
GAIN
POT
DISPLAY
THERMAL
SENSING
LOOP GAIN
FEEDBACK
CURRENT
SPLITTER
POSITIVE
OUTPUTS
CLIP
LIMITING
NEGATIVE
OUTPUTS
C
6
SPKR
OUTPUT
CHANNEL A
AUDIO CIRCUITS
SHEET 2
5 4 3
INPUT FILTER
GAIN
POT
THERMAL
SENSING
LOOP GAIN
FEEDBACK
BR MONO ROUTING
LED
DISPLAY
CLIP
LIMITING
CURRENT
SPLITTER
POSITIVE
OUTPUTS
NEGATIVE
OUTPUTS
SPKR
OUTPUT
CHANNEL B
AUDIO CIRCUITS
SHEET 3
2
REVISION
REV DESCRIPTION
A PRODUCTION RELEASE PER ECO 3724 AC
B REVISE PER ECO 3803 AC
EFF. DATE
6-26-98
8-28-98
1
CHK
KM
APPROVED / DATE
TS 6/30/98
D
C
B
OP-AMP
SUPPLIES
POWER
SUPPLY
BLEEDERS
DC FAULT
SHUTDOWN
THERMAL
SHUTDOWN
FAN SPEED
TO MUTE
CONTROL
SUPPORT AND
PROTECTION
CIRCUITS
SHEET 4
A
62
2. COMPONENTS WITH VALUE PREFIXED WITH A "^" REPRESENT SMT COMPONENTS.
1. THIS DRAWING USED IN CONJUNCTION WITH ASSEMBLY WP-000516-00.
NOTES: UNLESS OTHERWISE SPECIFIED
8 7 6 5
EMI
FILTER
SHUTDOWN
TRIGGERS
INRUSH
RELAY
RELAY
CONTROL
AC
RECT
BIAS
SUPPLY
OVERCURRENT
DETECTION
MAIN
FILTERS
IGBT
SWITCHES
HIGH FREQ
TRANSFORMER
ISOLATED
HIGH FREQ
RECTIFIERS,
FILTER CAPS
GATE
DRIVE
SWITCHING
OSCILLATOR
SWITCHING
POWER
SUPPLY
SHEET 5
VOLTAGE
120/230V
100V
TABULATION BLOCK
VARIABLE
R321, 322, 326, 328 - 487K, ^R_1206
R321, 322, 326, 328 - 392K, ^R_1206
B
4
QTY ITEM NO.
PART NO.
WP-000516-00
NEXT ASSY
APPLICATION
PLX 1602
USED ON
3
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
DIMENSIONS PER ANSI Y14.5-1982
TOLERANCES ARE:
DECIMALS DECIMALS ANGLES
O
.XX +.XXX
+-
DEBURR EDGES .XXX R MAX
MATERIAL
CONTRACT NO.
APPROVALS
DRAWN
PAT QUILTER
CHECKED
FINISH ISSUED
CAD SEED FILE NO.
DO NOT SCALE DRAWING
5-15-98
2
DESCRIPTION
PARTS LIST
DATE
VENDOR
AUDIO PRODUCTS, INC.
COSTA MESA, CALIFORNIA
SIZE FSCM NO.
D
SCALE
NONE
SCHEMATIC DIAGRAM
PLX 1602
CAD FILE NO.
DWG NO.
SH-000516-00 plx1602.sch
SHEET
P:\TANGOPRO\PLX\PLX1602
1
1 OF 5
REV
B
A
D
C
B
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
7
INPUT AND FILTER SECTION, CH A
J1
J2
+XLR_B
3
1
2
R
T
S
RING
TIP
N1
3
2
J3:3
J3:2
1
J3:1
4
J3:4
J4:1
J4:4
A-1 GND
A-4, GND
A-2 +A
A-3 -A
SH 4, EURO-INPUTS
-IN_CH-A +IN_CH-A
N4
J4:3
3
-IN_DPA
R5 NEG INPUT
75
^R_0805
R9
5.60K-.1%
J4:2
2
1
4
A1
N6
-XLR_B
INPUTS IN PARALLEL
- SH 3
^C_1206
+13IN
20
C195
.001-5%
SW1:4
14
DIP-10
J3:20
4
N25
J4:20
20
POS INPUT
R6
75
^R_0805
R8
5.60K-.1%
10
+IN_DPA
DATAPORT CONNECTED TO INPUT
AS USUAL TO MINIMIZE CROSSTALK
WHEN USING REGULAR INPUTS
J3:10 J4:10
A-10, LED-PAR
10
DP-PAR-F
SH 4
N27
A-20, +13V +13VCL
N8 C5
100pF-50V-5%
^C_0805
R12
5.60K-.1%
N10
3 +
+14VIC SIGNAL
POLARITY
INVERTED
U1:1
MC33078-SMT
1
2 -
N9
-14VIC
R13
5.60K-.1%
C6
100pF-50V-5%
^C_0805
C7
A1
6
A1
J4:6
SW1:3
13
DIP-10
3
A-6, GND
J3:6
6
N463
SW1:2
12
DIP-10
2
47-10NP-10%
2 POLE CASCADED ROLLOFF
-0.15dB, 20Hz. -0.4dB, 10Hz.
C8
.1-5%
R17
4.75K
^R_0805
N12
C12
.1-5%
R25
15.0K
^R_0805
N17
5 +
6 -
N16
DIP SWITCH TABLE, 10-POS
1 - CLIP LIM, CH-A
2 - LF FILT, CH-A
3 - 30 HZ LF, CH-A
4 - PAR INPUT LED
5 - PAR INPUTS, +
6 - PAR INPUTS, -
7 - BR MONO
8 - 30 HZ LF, CH B
9 - LF FILT, CH B
10- CLIP LIM CH B
6
N13
U1:2
7
MC33078-SMT
SIGNAL
POLARITY
INVERTED
THERMAL
AND BIAS
SENSING
AMP LOOP GAIN -- 32DB REVISION
USE SAME VALUE AS PLC-2
NTCBUS
N45 R41
1.50K
^R_0805
N230
R101
1.50K
^R_0805
PARALLEL
INPUT SW.
STATUS LED
N28
N29
N31
12
J5:12
2
4
J5:4
W
N32
3
J5:3
GAIN
N33 J5:1
1
J5:2
J6:12
12
J6:4
J6:3
J6:1
J6:2
4
1
3
2
N26
N35
N34
A1
R-parallel, 7.5K, 10K, 4.7K, = 2.24K
R15
7.50K
^R_0805 R14
12.7K
^R_0805
C9
100pF-50V-5%
^C_0805
3 +
U2:1
NE5532
1
R11
4.75K
^R_0805
2 -
N37
R16
12.7K
^R_0805
A1
BR MONO FEED, SH 3
CH_A_SIG
DISCUSS STAR GND
SIGNAL
POLARITY
INVERTED
R22
A1
536
^R_0805
C11
47-10NP-10%
R23
1.50K
^R_0805
P
R29
5.90K
^R_0805
ROUTE TO SPKR OUTPUT.
R226 = 5.90K for PLC-2
P1
+14VIC
R31
16.5K-1/2W-1%
N473
N40
5 +
N41
C14
6 -
U2:2
NE5532
7
N42
10pF-50V-5%
^C_0805
-14VIC
U_OPAMP_DUAL1
C16
SPKR_BUS_A
15pF
N44
N43
250
CCW
VR43
4148 ^D_SOT-23
TH-SUBC-A
N49
CW
-15NTC
LED-SIGNAL DISPLAY
SH 3
+14_DISP N110
8
J5:8
Q1
3906
^Q_BJTP_SOT-23
J6:8
8
SH 4
+14VIC
5
SW1:1
1
DIP-10
J3:5
11
J4:5
A-5, CLIP A
+13IN
5
N126
+13VCL
Q12
3906
R106
12.7K
^R_0805
5
N48
+15NTC
N50
N88
POS STEP DRIVER
C20
.0027
^C_0805
R48
2.00K
^R_0805
N87 D89
4148
^D_SOT-23
MUTE_HI
SH 4
POSREF
Q14
3906
^Q_BJTP_SOT-23
P
N64
A
Q2
3906
^Q_BJTP_SOT-23
Q3
3906
^Q_BJTP_SOT-23
Q4
3906
^Q_BJTP_SOT-23
R3 N115
D1
4.75K
^R_0805
4148
^D_SOT-23
Q5
3904
^Q_BJTN_SOT-23
N118
D2
PWR GND 4148
^D_SOT-23
N116
7
^U_LM13600
U3:1
LM13600M
5
N130
-
+
2
3
4
R18
20.0K
^R_0805
N127
Q6
3906
^Q_BJTP_SOT-23
N124
100 ^R_0805
P
N128
Q9
3904
^Q_BJTN_SOT-23
Q7
3904
Q10
3906
^Q_BJTP_SOT-23
N133
^Q_BJTN_SOT-23 Q8
3904
^Q_BJTN_SOT-23
N134
N136
P
^Q_BJTP_SOT-23
Q13
3904
^Q_BJTN_SOT-23
R44
383
^R_0805
PROT
SH 3
DATAPORT, SH 4, CLIP A
N138 CLIP_A
R50
20.0K
^R_1206
P
4
N56
N55
.36W at full clip
+15NTC
N66
Q24
3906
^Q_BJTP_SOT-23
Q18
N67
3904
^Q_BJTN_SOT-23
N477
R381
100
^R_0805
N57
N58
N59
3
POS OUTPUT SECTION
R76
12.7K
^R_0805
D9
R81 274
N68
100K ^R_1206
4148
^D_SOT-23
D14
Q26
MJE15033
4148
^D_SOT-23
N71
2SA1302
Q28
N78
Q19
2SC4793
D16
200V-.2A-50NS
^D_SOT-23
N90
FULL MUTE, 5.7V
MUTE+
SEE SH 4
N91
Q16
300V-.2A
^Q_BJTN_SOT-23
N84
SPKR_BUS_A
680pF ^C_0805
N85 C27
.022
R367
15-2W
P
P
Q15
3904
N92
Q17
300V-.2A
^Q_BJTP_SOT-23
N97
P
-15NTC
N96
.1-50V ^C_1206
Q21
2N3906
N93
N478
R382
100
^R_0805
Q23
3906
^Q_BJTP_SOT-23
N94
Q22
2SA1837
N95
^Q_BJTN_SOT-23
N98
Q25
3904
^Q_BJTN_SOT-23
N99
470pF ^C_1206
R80
5.6-2W
D13
200V-.2A-50NS
^D_SOT-23
N100
N101 D12
4148
^D_SOT-23
R77
4148 ^D_SOT-23
Q27
MJE15032
N102
N103
12.7K
^R_0805
D8
4148
^D_SOT-23
R82 274
P
DC_SENSE
SH 4
N139
NEGREF N141 N144
N145
N104
Q29
2SC3281
N146
2SA1302
L-Z_A1
Q34
N60
2SA1302
I-MON SH 4
N81
L1
1 2
2UH-14GA-AIR
Q35
2SC3281
NEG OUTPUT SECTION
N147
R98
5.6-2W
N86
Q36
Q37
2SC3281
P
N61
N80
N63
2SA1302
Q39
D
PWR-GND, TO SUPPLY CT
Q40
2SC3281
CLIP
RED
LD5
8
N119
5
J5:5
6
J5:6
J6:5
J6:6
5
6
P
N120
7
J5:7
7
J6:7
7
N121
-13VCL
6
P
CLIP-LIMIT
PROCESSOR
5 4
NEG STEP DRIVER
3
N62
SPKR-A
E9A
E10A E10B
V-NEGSTEP
-HI-RAIL
P1
E9B
D21
2
N108
JUMPER
2
N75
N461
+HI-RAIL
PLC-2 USES MID-RAILS ONLY:
JUMP STEP DIODES
OMIT STEP CIRCUITRY
+15-NTC SUPPLY SERVES AS POS BLEEDER
D22
JUMPER
+MID-RAIL
E9C
E10C
D
N459
N109
-MID-RAIL
SCALE
BR-POS
FROM CH B
SHEET 3
BR-NEG
NONE
EMI_G
SIZE FSCM NO.
1
CAD FILE NO.
DWG NO.
SH-000516-00 plx1602.sch
SHEET
1
2 OF 5
REV B
D
C
B
A
63
D
C
B
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
7
INPUT AND FILTER SECTION, CH B
J9
R
T
S
RING
TIP
18
A-18, -B
N475
J3:18
SH 4, EURO-INPUTS
-IN_CH-B +IN_CH-B
J4:18
18
R123
75
^R_0805
19
J3:19 J4:19
19
A-19, +B
N457
17
J3:17 J4:17
A-17, GND
17
A1
-IN_DPB
N151
NEG INPUT R129
5.60K-.1%
3
1
2
.1-50V-10% ^C_1206
J10
+XLR_B -XLR_B
SH 2, INPUT-PARALLEL SW
13
J5:13
C-13, BR-L
J6:13
13
C196
.001-5%
^C_1206
11
J4:11 J3:11
A-11, BR-M
N177
POS INPUT
R124
75
^R_0805
11
R130
+IN_DPB
5.60K-.1%
N153
N178
7
SW1:7
DIP-10
17
+13IN
D24 N179
DP-BR-F
SH 4
4148
^D_SOT-23
N152
C40
100pF-50V-5%
^C_0805
R135
5.60K-.1%
+14VIC
3 +
2 -
N154
MC33078-SMT
-14VIC
N182
1
U6:1
R136
5.60K-.1%
C41
100pF-50V-5%
^C_0805
BR MONO
STATUS
LED
15
J5:15 J6:15
C-14, BR-L
+13VCL
N181 D25 N183 R134
15
GAIN
17
J5:17
N185
W 18
J6:17
J5:18
19
J5:19
20
J5:20
17
J6:18
J6:19
J6:20
4148
^D_SOT-23
12.7K
^R_0805
18
N186 R133
12.7K
^R_0805
19
BR-MONO
CH B INPUT CLAMP
Q50
3904
^Q_BJTN_SOT-23
20
A1
BR-ON
SH 3
D23
4148
^D_SOT-23
Q42
3906
^Q_BJTP_SOT-23
CH_A_SIG
N194
R120
7.50K
^R_0805
R122
5.90K
^R_0805
N195
Q46
3906
^Q_BJTP_SOT-23
A1
N196 R127
2.00K
^R_0805
R132
7.50K
^R_0805
STEREO - CLAMPED
BR-MONO - OPEN
N197
R137
4.75K
^R_0805
N198
Q48
3906
^Q_BJTP_SOT-23
-13VCL
LED-SIGNAL DISPLAY
Q43
3906
^Q_BJTP_SOT-23
N249
N251
R128
1.00K
^R_1206
+14_DISP
A1
N155 C44
SIGNAL
POLARITY
INVERTED
.1-5%
R138 N161
4.75K
^R_0805
R140
7.50K
^R_0805
N189 C43
100pF-50V-5%
^C_0805
3 +
U7:1
NE5532
1
2 -
U_OPAMP_DUAL1
N191 R139
12.7K
^R_0805
N157
A1
N156
C47
.1-5%
N159
15
N162
J4:15
SW1:8
18
DIP-10
J3:15
A1
A-15, GND
8
15
N163
N164
SW1:9
19
DIP-10
9
6
DIP SWITCH TABLE, 10-POS
1 - CLIP LIM, CH-A
2 - LF FILT, CH-A
3 - 30 HZ LF, CH-A
4 - PAR INPUT LED
5 - PAR INPUTS, +
6 - PAR INPUTS, -
7 - BR MONO
8 - 30 HZ LF, CH B
9 - LF FILT, CH B
10- CLIP LIM CH B
R148
15.0K
^R_0805
N158
5 + U6:2
7
6 -
MC33078-SMT
N160
DISCUSS STAR GND
R146
A1
536
^R_0805
R152
5.90K
^R_0805
ROUTE TO SPKR OUTPUT.
R226 = 5.90K for PLC-2
P1
+14VIC
SIGNAL
POLARITY
INVERTED
C46
47-10NP-10%
R147
1.50K
^R_0805
N201
5 +
C49
6 -
10pF-50V-5%
^C_0805
-14VIC
U7:2
NE5532
7
+13IN
16
10
SW1:10
DIP-10
J3:16
20
J4:16
A-16, CLIP-B
16
SIGNAL
POLARITY
INVERTED
THERMAL
AND BIAS
SENSING
P
R153
16.5K-1/2W-1%
SPKR_BUS_B
C50
15pF
+13VCL
N203
NTCBUS
N202
N266
R109
1.50K
^R_0805
N204
N206
N208
R164
1.50K
^R_0805
250
VR166
CCW
Q57
3906
4148 ^D_SOT-23
5
TH-SUBC-B
N150
CW
-15NTC
A
8
Q44
3906
^Q_BJTP_SOT-23
N252
Q45
3906
^Q_BJTP_SOT-23
Q47
3906
^Q_BJTP_SOT-23
CLIP
RED
LD10
N257
R125
4.75K
^R_0805
N253
D26
4148
^D_SOT-23
Q49
3904
^Q_BJTN_SOT-23
N254
N256
PWR GND
11
J5:11 J6:11
11
10
J5:10 J6:10
10
D27
4148
^D_SOT-23
P
7
N258
9
J5:9
10
U3:2
LM13600M
12
N270
-
+
14
15
13
J6:9
9
R141
20.0K
^R_0805
N259
Q51
3906
^Q_BJTP_SOT-23
N271
100 ^R_0805
P
N265
Q54
3904
^Q_BJTN_SOT-23
Q52
3904
Q55
3906
^Q_BJTP_SOT-23
N274
^Q_BJTN_SOT-23 Q53
3904
^Q_BJTN_SOT-23
N275
6
-13VCL
P
^Q_BJTP_SOT-23
Q58
3904
^Q_BJTN_SOT-23
PROT
SH 2
DATAPORT, SH 4, CLIP B
N269 CLIP_B
R167
383
^R_0805
P
CLIP-LIMIT
PROCESSOR
5
+15NTC
N207
R173
20.0K
^R_1206
DC_SENSE
SH 4
4
POS STEP DRIVER
N209
C55
.0027
^C_0805
R171
2.00K
^R_0805
N165
POSREF
4
N167
NEGREF
N166
N168
.36W at full clip
N276
N278
N169
N170
N277
N171
3
NEG STEP DRIVER
3
N279
N172
N280
N173
N174
2
V-NEGSTEP
-HI-RAIL
2
D
SCALE
+HI-RAIL
Q61
300V-.2A
^Q_BJTN_SOT-23
MUTE+
SEE SH 4
P
P
Q59
3906
^Q_BJTP_SOT-23
P
Q60
3904
^Q_BJTN_SOT-23
N238
N210
N231
N232
Q62
300V-.2A
^Q_BJTP_SOT-23
N237
P
POS OUTPUT SECTION
P
N211
+15NTC
Q69
3906
N212
^Q_BJTP_SOT-23
N213
Q63
3904
^Q_BJTN_SOT-23
N479
N222
R199
12.7K
^R_0805
R204 274
100K ^R_1206
D34
4148
^D_SOT-23
N214
D39
Q71
MJE15033
4148
^D_SOT-23
D41
R383
100
^R_0805
Q64
2SC4793
N224
Q65
2N3904
N225
200V-.2A-50NS
^D_SOT-23
SPKR_BUS_B
2SA1302
Q73
N216
2SA1302
N221
Q79
L-Z_B1
I-MON-B, SH 4
N227
L2
1
2UH-14GA-AIR
2
R221
5.6-2W
N229
Q81
P
2SA1302 2SA1302
Q84
-15NTC
N233
680pF ^C_0805
N226 C62
.022
R368
15-2W
470pF ^C_1206
R203
5.6-2W
P
N480
R384
100
^R_0805
Q68
3906
^Q_BJTP_SOT-23
Q66
2N3906
N234
N235
Q67
2SA1837
N236
Q70
3904
^Q_BJTN_SOT-23
N239
D38
200V-.2A-50NS
^D_SOT-23
N240
4148 ^D_SOT-23
N242
D37
4148
^D_SOT-23
Q72
MJE15032
R200
N243
N241
^C_0805 R191
12.7K
^R_0805
D33
4148
^D_SOT-23
Q74 Q80
PWR-GND, TO SUPPLY CT
Q82 Q85
D
2SC3281
2SC3281 2SC3281 2SC3281
NEG OUTPUT SECTION
SPKR-B
P1
D47
JUMPER
+MID-RAIL
E11A E11B
E12A E12B
N248
D46
JUMPER
E11C
E12C
-MID-RAIL
SIZE FSCM NO.
NONE
EMI_G
E10
N464
N465
BR-POS
TO CH A
SHEET 2
BR-NEG
1
CAD FILE NO.
DWG NO.
SH-000516-00 plx1602.sch
SHEET
1
3 OF 5
64
REV
B
D
C
B
A
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
+15V
7
N282
6 5
+HI-RAIL
N286 N287
D
A
OPAMP POWER SUPPLIES
C
B
BR-ON
SH 3
D48
4148
^D_SOT-23
^Q_BJTP_SOT-23
R242
20.0K
^R_0805
P
Q87
3906
C71
DC_SENSE
SH 2, 3
47-10NP-10%
D50
4148
^D_SOT-23
N338
-DC THRESH, -4V
N339
D49
4148
^D_SOT-23
+DC THRESH 4V
DC MUTING
POWER LED
ON DISPLAY PCB
N349
14
J5:14 J6:14
14
N348
N350
16
J5:16 J6:16
16
+13VCL +14VIC
N283
+11V
P
-13VCL
-15V
N335
TO SHUTDOWN OPTOCOUPLER, SH 5 (6V)
DC-OFF
TO OPTOCOUPLER LED
1.6V OF HYSTERESIS
-14VIC
N284
DP - STBY
+MID-RAIL
N468
N285
-11V
A1
POSREF
N288
N322
V-NEGSTEP
N469
PLC-2 USES MID RAILS ONLY
+MID-RAIL
TO PWR SUPPLY C-T
P1
NEGREF
D88
JUMPER
-MID-RAIL
-HI-RAIL
+15NTC
P1
3 +
2 -
U10:1
^LM393-SMT
SH 5
V-STBY
POS RAIL
P
-15NTC
-MID-RAIL
NTCBUS
1
15V-SW
SEE SH 5
N340
D51
4148
^D_SOT-23
N341
Q88
3906
FAN SPEED THRESHOLD
P
ON-OFF DELAY,
THERMAL THRESHOLD
THERM HYST
R263
392K
^R_0805
N345 R270
1.50K
^R_0805
FROM PWR SUPPLY OPTOCOUPLER, SH 5
PS-OL
TO SHEETS 2 AND 3
MUTE+
FULL MUTE, 5.7V
FULL CUTBACK, 2.8V, 1MA
D55
4148
^D_SOT-23
N344
5 +
U10:2
7
6 -
^LM393-SMT
MUTE_HI
P1
N474
N334
R253
4.75K
^R_0805
N347 C85
.001-5%
^C_1206
Q89
3904
^Q_BJTN_SOT-23
R264
2.21K
^R_0805
R265
2.21K
^R_0805
N352
R267
2.21K
^R_0805
+15V
Q91
TIP 32C
N353
Q90 N355
3904
^Q_BJTN_SOT-23
P
2
1
J13:1
J13:2
+FAN
-FAN
8 7 6
FAN SPEED CONTROL
5
-15V
4
CH B V-MON, I-MON
N361
L-Z_B1
N360
OUTER COIL, 6T
ROUTE TO SPKR OUTPUT
P1
CH A V-MON, I-MON
N324
OUTER COIL, 6T
L-Z_A1
N323
SPKR-A
ROUTE TO SPKR OUTPUT
P1
SPKR-B
D
D
3
V-MON CONVERSION SCALES:
PLC-2: (sim to 1.4) 30.1K / 2.00K = 15.05 Vout/Vmon
PLC-3: (between 1.8, 2.0) 33.2K / 1.5K = 22.13 Vout/Vmon
N289
+11V
DP-PAR-F
SH 2
D
DP-BR-F
SH 3
N291
2
V-MON CH A
(NEW BMF SUBCODE,
0-2V, 0.5V BITS)
INJECT V-DC
POST OPAMP,
NO GAIN SCALING
1
BMF VOLTAGE SCHEME: BINARY CODING, 2 BITS
SOURCE VOLTAGE, 13V NOM, 11V-14.5V (UNREG)
STEREO (NORMAL): BINARY 0,0 = 0V OUT
INPUTS PARALLEL: BINARY 0,1 = .5V NOM, .42-.575,
BR MONO: BINARY 1,0 = 1.0V NOM, .85-1.15
BR-MONO + PAR: BINARY 1,1 = 1.5V NOM, 1.27-1.72
NOM THRESHOLDS, 0.25, .75, 1.25.
FOR UNREG TRACKING DECODING, USE V-ON (1V NOM) AS REF D
N290
-11V
D
N356
+11V
N357
D
-11V
N327
N328
N329
N363
N364
N365
N69
N149
D
N330
N366
D
+13VCL
N358
SEE SH 2
TH-SUBC-A
D
I-MON CH A
(WITH SEPARATE CH A
THERMAL SUBCODE)
D
SEE SH 3
TH-SUBC-B
I-MON CH B
(WITH SEP. CH B
THERMAL SUBCODE)
+15V
FOR 1/8 WATT:
110 MA, 1.1V MAX
+IN_DPB
-IN_DPB
DATAPORT INPUT SENSITIVITY:
PLC 2:
7.87K / 5.60 K,
1.23V-IN -> 2.95V-DP
PLC-3:
4.75K / 5.60K
1.70V-IN -> 3.15V-DP
+IN_CH-A
-IN_CH-A
+IN_CH-B
-IN_CH-B
A1
A1
V-MON CH B
(PWR-SUPPLY- ON
SUBCODE: .8-1.3V)
SCALE 13V TO 1V NOM
-IN_DPA
+IN_DPA
N293
N294
N295
N296
CLIP_A
SEE SH 2
N304
CLIP_B
N315
N316
N305
N306
N307
SET ID- R
N313
N297
N298
EURO-PLUG:
RAVE SIGNAL
FORMAT
+A
-A
GND
N299
N300
N301
N302
N303
N308
N310
N311
N312
N317
N318
N319
N314
DATAPORT
HD-15 JACK
-IN, A
STBY
VMON-A
C
IMON-A
CLIP-A
CHAS GND
D-REF
-IN, B
IDR
+IN, A
+IN, B
+15V ??
VMON-B
IMON-B
CLIP-B
B
N460
N320
N321
EURO-PLUG:
RAVE SIGNAL
FORMAT
+B
-B
GND
CH GND
D
A
4 3 2
SIZE FSCM NO.
D
NONE
CAD FILE NO.
DWG NO.
SH-000516-00 plx1602.sch
SHEET
1
4 OF 5
REV
B
65
D
C
B
A
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
7
750K, X-CAP DISCHARGE
TO MEET IEC STANDARD:
BECAUSE X-CAP EXCEEDS 0.1UF
MUST DISCHARGE X-CAP TO
34 V WITHIN 2 SECONDS.
230V X 1.41 = 325V ->34 V
FOR C = 1.5UF, R < 628K, 0.1W
LINE FILTER SHIELD
6 5
J19
AC-HI
120, 240V
1
2
AC-LO
J20
1
2
N371
F1
25A-125V
N369
3
L3:1
1
N374
3
L4:1
1
N376
NTC NEXT TO RELAY
LOCATE DOWNSTREAM
OF FILTER, OUTSIDE SHIELD
INRUSH APPROX 0.5 SEC
INRUSH LIMITING RELAY.
QSC-COM, 30A, COIL 24V
MIN VOLT 18V, OK
N379
N378
6
4
5
3
EH1
EH2
R324
10-OHM-20%
ES1
ES2
AC-SW
N380
E120B
600V-50A
BR1
2 AC1
AC2
3
N381
PRI ENERGY STORAGE, 6 PL
USE 4 PL FOR PLC-2
PRI_HI
T2:1
TRANSFORMER
QUIET END
P5 P6 P7
C144
.47-400V
4
L3:2
2
N375
4
L4:2
CH-GND
STUD
2
N377
240V, FULL
WAVE RECT
EL1
E240
120V, VOLT
DOUBLER
E120A
PRI_LO
N384
N458
N472
N309
PRI_LO
N372
Q92
3904
^Q_BJTN_SOT-23
N418
N370
IGBT HEAT SINK
E14
+18V
4148 ^D_SOT-23
RELAY 25MA
PRI_LO
N406
R326
487K
^R_1206
+VREF
3904
^Q_BJTN_SOT-23
NOM BUS VOLTAGE 340V (120-240VAC)
MIN BUS VOLTAGE 200-220V (75-150 VAC)
PRI_LO
8 -
9 +
U13:3
14
LM339
974K - 24.9K RES DIVIDER
340V NOM BUS = 8.67V
200V MIN BUS = 5.1V UV
Q93
N411
N410
^R_1206
C128
.0027
^C_0805
R328
487K
RELAY STARTS OFF LOW. 5V LINE
SETTLES HIGH BEFORE 16V > 8V,
BECAUSE TRIG IS LOW UP TO 10V
D91
4148
^D_SOT-23
N471
OFF-BUS VOLTAGES RISES
ONLY AFTER V-BIAS > 10V.
ENSURES THAT 556-TRIG
PIN STARTS LOW.
N412
N408
N419
4V NOM
R335
150K
^R_1206
N413
R334
100
^R_0805
TIME DELAY
3 SECONDS
UNDERVOLTAGE SHUTDOWN
TRIGGERS AT 5.1 V-REF
RESETS AT 5.6V (10% HYST)
R332 N409
39.2K
^R_0805
PRI_LO
NON CRIT BYPASS
PRI_LO
5V NOM
R369
1.00K
^R_1206
LM339
13
U13:4
LM339
1
U13:2
+VREF
N414
+VREF
PRI_LO
+
11
-
10
+
7
N444
-
6
N446
0V - RUN
5V - SHUTDOWN
8
TRIGGER
N426
+18V
9
OUTPUT
10
11
CONTROL_V
12
THRESHOLD
13
RESET
DISCHARGE
D62
MURS120T3
D63
4148
^D_SOT-23
D64
4148
^D_SOT-23
.001-5% ^C_1206
PRI_HI
R376
10.0K
^R_0805
PRI_LO
N117 R375
10.0K
^R_0805
Q99
3906
^Q_BJTP_SOT-23
N453 R374
536
^R_0805
D67
D65
4148
^D_SOT-23
D66
10V-.3W
^D_ZEN_SOT-23
4148
^D_SOT-23
+16V
PRI_LO
+16V N424
4 -
5 +
U13:1
2
LM339
R340
392K
^R_0805
.1-50V-10% ^C_1206
N421
N422
D60
MURS160T3
^D_SMB
C127
.0022-250VAC
600V TRACE
PRI_LO
5 D
6 N/C
7 N/C
8 S
N/C
N/C
C
U16
TOP 210
S
3
2
1
4
5V NOM
N476
N423
C142
100-25V
N470
N445
+16V
0.5-1 MA TO TRIGGER
U15
6
NC
5
1
4
NC
2
3
100PF @ 15KV ESD
100NF @ 15V BYPASS
PRI_LO
.1-50V-10% ^C_1206
+6 V
COMBINED EFFECT OF
150K-1206 RESISTOR AND
10K, 12.7K THRESHOLD
RAISES PEAK LIMIT 25%
RELATIVE TO PROTO
DC-OFF
FROM DC SHUTDOWN,
SHEET 4
R342
100K
^R_1206 N447
L6:2
3
PARALLEL WINDING ON
RESONANT INDUCTOR
4
R343
100K
^R_1206
N448
AVERAGE LIMITING HAS
SEVERAL SECOND TIME
CONSTANT TO REACH
2.4V THRESHOLD,
AVE CURRENT 20-25A
D61
^200V-.2A-50NS
^D_SOT-23
N450
+16V
N455
Q95
3904
^Q_BJTN_SOT-23
1
U17
NC
5
6
2
3
NC
4
R353
10.0
^R_1206
+6 V
D68
^200V-.2A-50NS
^D_SOT-23
V-STBY
TO SH 4
PRI_LO PRI_LO
PS-OL
SH 4
D69
4148
^D_SOT-23
P
N452
4
1
L6:1
2
R372
56-2W
T2:2
S11
S12
S13
S14
N388
N389
S15
S16
S17
N431
S18
N432
S19
S20
N433
P1
N429
N430
N387
Q96
IRG4PC40
G
N390
R359
10.0
^R_1206
D78
^200V-.2A-50NS
^D_SOT-23
N391
D74
200V-15A
D80
200V-15A
D75
200V-15A
D81
200V-15A
N438
TO TURN-OFF MUTING
SHEET 4 (FAN SPEED)
15V-SW
D76
MURS120T3
D82
MURS120T3
D77
MURS120T3
D83
MURS120T3
^D_SMB
SMT-B PKG OK
N435
N436
N437
3
Q97
IRG4PC40
N392
G
R358
10.0
^R_1206
D79
^200V-.2A-50NS
^D_SOT-23 N393
2 BEADS IN PAR HI RAIL
1 BEAD LO RAIL
L9
1
6UH-BEAD
2
L10
1
6UH-BEAD
2
NEW, LO-ESR, 2PL
N394
.1-50V-10% ^C_1206
+16V
N395
+15V
.1-50V-10% ^C_1206
P1
-15V
.1-50V-10% ^C_1206
PRI_LO
D86
MURS160T3
^D_SMB
+18V
4
1 LO
2 COM
3 VCC
U18
VSS
LIN
SD
5 VS
6 VB
7 HO
HIN
VDD
IR2110
14
13
12
8
11
9
10
USE THRU HOLE,
HIGHER WATTAGE
2
+HI-RAIL
+MID-RAIL
P1
-MID-RAIL
-HI-RAIL
+VREF
N441
R361
536
^R_0805
N442
N443
5
OUTPUT
4
1
RESET
3
CONTROL_V
2
THRESHOLD
DISCHARGE
PRI_LO
+16V
N401
PRI_LO
+VREF
C116
.1-50V-10%
^C_1206
Q98
3906
PRI_LO
N439
^Q_BJTP_SOT-23
6
TRIGGER
1
PRI_LO
N398
N397
.1-50V-10% ^C_1206
PRI_LO
N402
+VREF
U19
16 VREF
15 VIN
14 OUTB
13 VC
-IN
+IN
SYNC
OSC.OUT
12 GND
11 OUTA
10 SHTDWN
9 COMP
CT
RT
DISCHG
SFT-SRT
SG3525AN
5
6
4
7
8
2
3
1
N403
R364
100
^R_0805
8 7 6 5 4 3 2
SIZE FSCM NO.
D
NONE
CAD FILE NO.
DWG NO.
SH-000516-00 plx1602.sch
SHEET
1
5 OF 5
REV
B
D
C
B
A
66
D
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
7
INPUT
LED
FILTER
GAIN
POT
DISPLAY
THERMAL
SENSING
LOOP GAIN
FEEDBACK
CURRENT
SPLITTER
POSITIVE
OUTPUTS
CLIP
LIMITING
NEGATIVE
OUTPUTS
C
6
SPKR
OUTPUT
CHANNEL A
AUDIO CIRCUITS
SHEET 2
5 4 3
INPUT FILTER
GAIN
POT
THERMAL
SENSING
LOOP GAIN
FEEDBACK
BR MONO ROUTING
LED
DISPLAY
CLIP
LIMITING
CURRENT
SPLITTER
POSITIVE
OUTPUTS
NEGATIVE
OUTPUTS
SPKR
OUTPUT
CHANNEL B
AUDIO CIRCUITS
SHEET 3
2 1
D
C
B
OP-AMP
SUPPLIES
POWER
SUPPLY
BLEEDERS
DC FAULT
SHUTDOWN
THERMAL
SHUTDOWN
FAN SPEED
TO MUTE
CONTROL
SUPPORT AND
PROTECTION
CIRCUITS
SHEET 4
A
2. COMPONENTS WITH VALUE PREFIXED WITH A "^" REPRESENT SMT COMPONENTS.
1. THIS DRAWING USED IN CONJUNCTION WITH ASSEMBLY WP-002403-00.
NOTES: UNLESS OTHERWISE SPECIFIED
8 7 6 5
EMI
FILTER
SHUTDOWN
TRIGGERS
INRUSH
RELAY
RELAY
CONTROL
AC
RECT
BIAS
SUPPLY
OVERCURRENT
DETECTION
MAIN
FILTERS
IGBT
SWITCHES
HIGH FREQ
TRANSFORMER
ISOLATED
HIGH FREQ
RECTIFIERS,
FILTER CAPS
GATE
DRIVE
SWITCHING
OSCILLATOR
SWITCHING
POWER
SUPPLY
SHEET 5
VOLTAGE
120/230V
100V
TABULATION BLOCK
VARIABLE
R321, 322, 326, 328 - 487K, ^R_1206
R321, 322, 326, 328 - 392K, ^R_1206
B
4
QTY ITEM NO.
PART NO.
WP-002403-00 PLX 2402
NEXT ASSY
APPLICATION
USED ON
3
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
DIMENSIONS PER ANSI Y14.5-1982
TOLERANCES ARE:
DECIMALS DECIMALS ANGLES
O
.XX +.XXX
+-
DEBURR EDGES .XXX R MAX
MATERIAL
CONTRACT NO.
APPROVALS
DRAWN
PAT QUILTER
CHECKED
FINISH ISSUED
CAD SEED FILE NO.
DO NOT SCALE DRAWING
DESCRIPTION
PARTS LIST
DATE
5-15-98
PLOT DATE:
Wed Dec 09, 1998
2
VENDOR
AUDIO PRODUCTS, INC.
COSTA MESA, CALIFORNIA
SIZE FSCM NO.
D
SCALE
NONE
SCHEMATIC DIAGRAM
PLX 2402
CAD FILE NO.
DWG NO.
SH-002403-00
SHEET plx2402.sch
P:\TANGOPRO\PLX\PLX2402 1
1 OF 5
REV
C
A
67
D
C
B
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
J1
J2
+XLR_B
2
3
1
R
T
S
RING
TIP
N1
3
2
J3:3
J3:2
J3:1
1
4
J3:4
J4:1
J4:4
A-1 GND
A-4, GND
A-2 +A
A-3 -A
SH 4, EURO-INPUTS
-IN_CH-A +IN_CH-A
N4
J4:3
3
-IN_DPA
R5 NEG INPUT
75
^R_0805
R9
5.60K-.1%
J4:2
2
1
4
A1
N6
-XLR_B
INPUTS IN PARALLEL
- SH 3
+13IN
C195
.001-5%
^C_1206
20
SW1:4
14
DIP-10
J3:20
4
N25
J4:20
A-20, +13V
20
POS INPUT
R6
75
^R_0805
R8
5.60K-.1%
10
+IN_DPA
DATAPORT CONNECTED TO INPUT
AS USUAL TO MINIMIZE CROSSTALK
WHEN USING REGULAR INPUTS
J3:10 J4:10
A-10, LED-PAR
10
DP-PAR-F
SH 4
N27
+13VCL
N9
-14VIC
R13
5.60K-.1%
7
INPUT AND FILTER SECTION, CH A
N8 C5
100pF-50V-5%
^C_0805
R12
5.60K-.1% A1
N10
3 +
+14VIC SIGNAL
POLARITY
INVERTED
U1:1
MC33078-SMT
1
2 -
C6
100pF-50V-5%
^C_0805
C7
C8
.1-5%
6
A1
J4:6
SW1:3
13
DIP-10
3
A-6, GND
J3:6
6
N463
SW1:2
12
DIP-10
2
47-10NP-10%
2 POLE CASCADED ROLLOFF
-0.15dB, 20Hz. -0.4dB, 10Hz.
R17
4.75K
^R_0805
N12
C12
.1-5%
N16
6
DIP SWITCH TABLE, 10-POS
1 - CLIP LIM, CH-A
2 - LF FILT, CH-A
3 - 30 HZ LF, CH-A
4 - PAR INPUT LED
5 - PAR INPUTS, +
6 - PAR INPUTS, -
7 - BR MONO
8 - 30 HZ LF, CH B
9 - LF FILT, CH B
10- CLIP LIM CH B
N13 R25
15.0K
^R_0805
N17
5 + U1:2
7
6 -
MC33078-SMT
SIGNAL
POLARITY
INVERTED
THERMAL
AND BIAS
SENSING
AMP LOOP GAIN -- 32DB REVISION
USE SAME VALUE AS PLC-2
NTCBUS
N45 R41
1.50K
^R_0805
N230
R101
1.50K
^R_0805
PARALLEL
INPUT SW.
STATUS LED
N28
N29
N31
12
J5:12
4
J5:4
W
N32
3
J5:3
GAIN
N33
1
J5:1
J5:2
2
J6:12
12
J6:4
4
J6:3
3
J6:1
J6:2
1
2
N26
N35
N34
A1
R-parallel, 7.5K, 10K, 4.7K, = 2.24K
R15
7.50K
^R_0805 R14
12.7K
^R_0805
C9
100pF-50V-5%
^C_0805
3 +
U2:1
NE5532
1
R11
4.75K
^R_0805
2 -
N37
R16
12.7K
^R_0805
A1
BR MONO FEED, SH 3
CH_A_SIG
DISCUSS STAR GND
SIGNAL
POLARITY
INVERTED
R22
A1
536
^R_0805
C11
47-10NP-10%
R23
1.50K
^R_0805
P
R29
5.90K
^R_0805
ROUTE TO SPKR OUTPUT.
R226 = 5.90K for PLC-2
P1
+14VIC
R31
16.5K-1/2W-1%
N473
N40
5 +
N41
C14
6 -
U2:2
NE5532
7
N42
10pF-50V-5%
^C_0805
-14VIC
U_OPAMP_DUAL1
C16
SPKR_BUS_A
15pF
N44
N43
CCW
250
VR43
4148 ^D_SOT-23
LED-SIGNAL DISPLAY
N110
Q1
3906
^Q_BJTP_SOT-23
SH 3
+14_DISP
8
J5:8 J6:8
8
SH 4
+14VIC
5
SW1:1
1
DIP-10
J3:5
11
J4:5
A-5, CLIP A
+13IN
5
N126
+13VCL
Q12
3906
TH-SUBC-A
N49
CW
-15NTC
5
N48
+15NTC
N50
N88
POS STEP DRIVER
C20
.0027
^C_0805
R48
2.00K
^R_0805
R106
12.7K
^R_0805
N87 D89
4148
^D_SOT-23
MUTE_HI
SH 4
R52
150K
^R_1206
POSREF
R54
150K
^R_1206
R55
4.75K
^R_0805
R56
4.75K
^R_0805
A
Q2
3906
^Q_BJTP_SOT-23
Q3
3906
^Q_BJTP_SOT-23
Q4
3906
^Q_BJTP_SOT-23
CLIP
LD5
RED N119
8
R3 N115 D1
4.75K
^R_0805
4148
^D_SOT-23
Q5
3904
^Q_BJTN_SOT-23
5
J5:5
6
J5:6
N118
PWR GND
D2
4148
^D_SOT-23
J6:5
5
J6:6
6
P
N120
N116
^U_LM13600
7
J5:7
7
7
U3:1
LM13600M
5
N130
J6:7
7
N121
-
+
2
4
3
R18
20.0K
^R_0805
N127
Q6
3906
^Q_BJTP_SOT-23
N124
100 ^R_0805
P
N128
-13VCL
6
Q9
3904
^Q_BJTN_SOT-23
Q7
3904
Q10
3906
^Q_BJTP_SOT-23
N133
^Q_BJTN_SOT-23 Q8
3904
^Q_BJTN_SOT-23
N134
N136
P
^Q_BJTP_SOT-23
Q13
3904
^Q_BJTN_SOT-23
R44
383
^R_0805
P
CLIP-LIMIT
PROCESSOR
5
PROT
SH 3
DATAPORT, SH 4, CLIP A
N138 CLIP_A
4
N56
R66 N57
D7
N55
392K
^R_0805
U4
2
1 GND
V+
3
4 V-
BAL/STR
BAL
^LM311-SMT
6
5
7
8
10V-1N4740A
.36W at full clip
D15
3.01K
^R_0805
N58
R79
4148
^D_SOT-23
N59
3
Q30
3904
^Q_BJTN_SOT-23
Q31
3906
^Q_BJTP_SOT-23
POS OUTPUT SECTION
C30
47pF-50V-5%
^C_0805
N60
P
N63
N61 R110
47.5
^R_0805
N62
Q41
RFZ44
2
+HI-RAIL
D22
15A-200V
+MID-RAIL
1
Q14
3906
^Q_BJTP_SOT-23
P
N64
P
N90
FULL MUTE, 5.7V
MUTE+
Q16
300V-.2A
SEE SH 3
^Q_BJTN_SOT-23
N91
+15NTC
Q24
3906
N66
^Q_BJTP_SOT-23
Q18
N67
R381
3904
^Q_BJTN_SOT-23
N477
100
^R_0805
Q19
2SC4793
Q20
2N3904
N78
R76
39.2K
^R_0805
D9
R81 200
N68
100K ^R_1206
4148
^D_SOT-23
D14
Q26
MJE15033
4148
^D_SOT-23
N71
2SA1302
Q28
D16
200V-.2A-50NS
^D_SOT-23
SPKR_BUS_A
N84
680pF ^C_0805
N85 C27
.022
R367
15-2W
2SA1302
Q34
2SA1302
R98
5.6-2W
N86
Q36
L-Z_A1
I-MON SH 4
N81
L1
1
2UH-14GA-AIR
2
N80
2SA1302
Q39
D
P
P
Q15
3904
^Q_BJTN_SOT-23
N98
N92
Q17
300V-.2A
^Q_BJTP_SOT-23
N97
P
-15NTC
N96
Q21
N93
2N3906
N478
.1-50V ^C_1206
R382
100
^R_0805
Q23
3906
^Q_BJTP_SOT-23
N94
Q22
2SA1837
N95
Q25
3904
^Q_BJTN_SOT-23
N99
470pF ^C_1206
R80
5.6-2W
D13
200V-.2A-50NS
^D_SOT-23
N100
N101 D12
4148
^D_SOT-23
R77
4148 ^D_SOT-23
Q27
MJE15032
N102
N103
39.2K
^R_0805
D8
4148
^D_SOT-23
R82 200
P
N104
Q29
2SC3281
Q35
2SC3281
PWR-GND, TO SUPPLY CT
Q37
2SC3281
Q40
2SC3281
SPKR-A
E9A
E10A
P1
R115
1.5-2W
E9B
E10B
R116
1.5-2W
N75
N461
D21
15A-200V
C34
.1-250V
E9C
N108 C35
.1-250V
E10C
N459
N109
EMI_G
BR-POS
FROM CH B
SHEET 3
BR-NEG
NEG OUTPUT SECTION
-MID-RAIL
R50
30.1K
^R_1206
DC_SENSE
SH 4
N139
R2
47.5K
^R_0805
N145
NEGREF
N141
R57
150K
^R_1206
R58
150K
^R_1206
R63
4.75K
^R_0805
R64
4
4.75K
^R_0805
N396 C187
47pF-50V-5%
^C_0805
R69
392K
^R_0805
N144
U5
2
1 GND
V+
3
4 V-
BAL/STR
BAL
^LM311-SMT
6
5
7
8
NEG STEP DRIVER
D17
4148
^D_SOT-23
R84
2.21K
^R_0805
3
N146 C29
47pF-50V-5%
^C_0805
Q32
3904
^Q_BJTN_SOT-23
R100
Q33
3906
N147 47.5
^R_0805
^Q_BJTP_SOT-23
V-NEGSTEP
Q38
RFZ44
-HI-RAIL
2
SIZE FSCM NO.
D
SCALE NONE CAD FILE NO.
DWG NO.
SH-002403-00 plx2402.sch
SHEET
1
2 OF 5
68
REV
C
D
C
B
A
D
C
B
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
J9
R
T
S
RING
TIP
18
A-18, -B
N475
J3:18
SH 4, EURO-INPUTS
-IN_CH-B +IN_CH-B
J4:18
18
R123
75
^R_0805
19
J3:19 J4:19
A-19, +B
19
N457
17
J3:17 J4:17
A-17, GND
17
A1
-IN_DPB
N151
NEG INPUT R129
5.60K-.1%
3
1
2
J10
+XLR_B -XLR_B
SH 2, INPUT-PARALLEL SW
13
J5:13
C-13, BR-L
J6:13
13
.1-50V-10% ^C_1206
C196
.001-5%
^C_1206
11
J4:11 J3:11
A-11, BR-M
N177
POS INPUT
R124
75
^R_0805
11
R130
+IN_DPB
5.60K-.1%
N153
N178
7
SW1:7
DIP-10
17
+13IN
D24 N179
DP-BR-F
SH 4
4148
^D_SOT-23
N152
C40
100pF-50V-5%
^C_0805
R135
5.60K-.1%
+14VIC
3 +
2 -
N154
N182
1
U6:1
MC33078-SMT
-14VIC
R136
5.60K-.1%
C41
100pF-50V-5%
^C_0805
BR MONO
STATUS
LED
15
J5:15 J6:15
C-14, BR-L
-13VCL
+13VCL
LED-SIGNAL DISPLAY
R128
1.00K
^R_1206
+14_DISP
7
INPUT AND FILTER SECTION, CH B
N181 D25 N183 R134
15
GAIN
17
J5:17
N185
W 18
J6:17
J5:18
19
J5:19
20
J5:20
17
J6:18
J6:19
J6:20
4148
^D_SOT-23
12.7K
^R_0805
18
N186 R133
12.7K
^R_0805
19
BR-MONO
CH B INPUT CLAMP
Q50
3904
^Q_BJTN_SOT-23
20
A1
BR-ON
SH 4
D23
4148
^D_SOT-23
Q42
3906
^Q_BJTP_SOT-23
CH_A_SIG
N194
R120
7.50K
^R_0805
Q43
3906
^Q_BJTP_SOT-23
R122
5.90K
^R_0805
N195
Q46
3906
^Q_BJTP_SOT-23
A1
N196 R127
2.00K
^R_0805
R132
7.50K
^R_0805
STEREO - CLAMPED
BR-MONO - OPEN
N197
R137
4.75K
^R_0805
N198
Q48
3906
^Q_BJTP_SOT-23
N249
N251
A1
N155 C44
SIGNAL
POLARITY
INVERTED
.1-5%
R138 N161
4.75K
^R_0805
N156
C47
.1-5%
N159
15
N162
J4:15
SW1:8
18
DIP-10
J3:15
A1
A-15, GND
8
15
N163
N164
SW1:9
19
DIP-10
9
N157
6
DIP SWITCH TABLE, 10-POS
1 - CLIP LIM, CH-A
2 - LF FILT, CH-A
3 - 30 HZ LF, CH-A
4 - PAR INPUT LED
5 - PAR INPUTS, +
6 - PAR INPUTS, -
7 - BR MONO
8 - 30 HZ LF, CH B
9 - LF FILT, CH B
10- CLIP LIM CH B
R148
15.0K
^R_0805
N158
5 + U6:2
7
N160
6 -
MC33078-SMT
SIGNAL
POLARITY
INVERTED
THERMAL
AND BIAS
SENSING
N203
NTCBUS
R140
7.50K
^R_0805
P
N189 C43
100pF-50V-5%
^C_0805
3 +
U7:1
NE5532
1
2 -
U_OPAMP_DUAL1
N191 R139
12.7K
^R_0805
A1
DISCUSS STAR GND
A1
SIGNAL
POLARITY
INVERTED
R146
536
^R_0805
C46
47-10NP-10%
R147
1.50K
^R_0805
R152
5.90K
^R_0805
ROUTE TO SPKR OUTPUT.
R226 = 5.90K for PLC-2
P1
+14VIC
N201
5 +
C49
6 -
10pF-50V-5%
^C_0805
-14VIC
U7:2
NE5532
7
R153
16.5K-1/2W-1%
N202
SPKR_BUS_B
C50
15pF
+13IN
16
10
SW1:10
DIP-10
J3:16
20
J4:16
A-16, CLIP-B
16
+13VCL
N266
R109
1.50K
^R_0805
N204
N206
N208
R164
1.50K
^R_0805
250
VR166
CCW
Q57
3906
4148 ^D_SOT-23
5
TH-SUBC-B
N150
CW
-15NTC
A
8
Q44
3906
^Q_BJTP_SOT-23
N252
Q45
3906
^Q_BJTP_SOT-23
Q47
3906
^Q_BJTP_SOT-23
CLIP
RED
LD10
N257
R125
4.75K
^R_0805
N253
D26
4148
^D_SOT-23
Q49
3904
^Q_BJTN_SOT-23
N254
N256
PWR GND
11
J5:11 J6:11
11
10
J5:10 J6:10
10
D27
4148
^D_SOT-23
P
7
N258
9
J5:9
10
U3:2
LM13600M
12
N270
-
+
14
15
13
J6:9
9
R141
20.0K
^R_0805
N259
Q51
3906
^Q_BJTP_SOT-23
N271
100 ^R_0805
P
N265
Q54
3904
^Q_BJTN_SOT-23
Q52
3904
Q55
3906
^Q_BJTP_SOT-23
N274
^Q_BJTN_SOT-23 Q53
3904
^Q_BJTN_SOT-23
N275
6
-13VCL
P
P
CLIP-LIMIT
PROCESSOR
5
+15NTC
N207
^Q_BJTP_SOT-23
Q58
3904
^Q_BJTN_SOT-23
PROT
SH 2
DATAPORT, SH 4, CLIP B
N269 CLIP_B
R167
383
^R_0805
N210
Q61
300V-.2A
^Q_BJTN_SOT-23
N231
Q60
3904
^Q_BJTN_SOT-23
4
POS STEP DRIVER
N209
C55
.0027
^C_0805
R171
2.00K
^R_0805
N165 R175
150K
^R_1206
POSREF
MUTE+
SEE SH 4
P
P
Q59
3906
^Q_BJTP_SOT-23
P
R173
30.1K
^R_1206
R177
150K
^R_1206
N238
R178
4.75K
^R_0805
N167
R179
4.75K
^R_0805
N232
Q62
300V-.2A
^Q_BJTP_SOT-23
N237
P
N169
3
R189 N170
N166
N168
D32
10V-1N4740A
.36W at full clip
392K
^R_0805
U8
2
1 GND
V+
3
4 V-
BAL/STR
^LM311-SMT
BAL
7
8
6
5
N171
D40
R202
3.01K
^R_0805
4148
^D_SOT-23
N172 C65
47pF-50V-5%
^C_0805 N174 R233
47.5
^R_0805 Q75
3904
^Q_BJTN_SOT-23
N173
Q76
3906
^Q_BJTP_SOT-23
POS OUTPUT SECTION
P
N211
+15NTC
Q69
3906
N212
^Q_BJTP_SOT-23
N213
Q63
3904
^Q_BJTN_SOT-23
N479 N222
R199
39.2K
^R_0805
R204 200
100K ^R_1206
D34
N214
4148
^D_SOT-23
D39
Q71
MJE15033
4148
^D_SOT-23
D41
R383
100
^R_0805
Q64
2SC4793
N224
Q65
2N3904
N225
200V-.2A-50NS
^D_SOT-23
SPKR_BUS_B
2SA1302
Q73
N216
2SA1302
N221
Q79
L-Z_B1
I-MON-B, SH 4
N227
L2
1
2UH-14GA-AIR
2
R221
5.6-2W
N229
Q81
P
2SA1302 2SA1302
Q84
-15NTC
N233
680pF ^C_0805
N226 C62
.022
R368
15-2W
470pF ^C_1206
R203
5.6-2W
P
N480
R384
100
^R_0805
Q68
3906
^Q_BJTP_SOT-23
Q66
2N3906
N234
N235
Q67
2SA1837
N236
Q70
3904
^Q_BJTN_SOT-23
N239
D38
200V-.2A-50NS
^D_SOT-23
N240
4148 ^D_SOT-23
N242
D37
4148
^D_SOT-23
Q72
MJE15032
R200
N243
N241
^C_0805 R191
39.2K
^R_0805
D33
4148
^D_SOT-23
Q74
2SC3281
2SC3281 2SC3281 2SC3281
NEG OUTPUT SECTION
DC_SENSE
SH 4
NEGREF
4
R180
150K
^R_1206
R181
150K
^R_1206
N276
R43
47.5K
^R_0805
R186
4.75K
^R_0805
N278
R187
4.75K
^R_0805
N481 C193
47pF-50V-5%
^C_0805
R192
392K
^R_0805
N277
U9
3
2
1 GND
V+
BAL/STR
4 V-
^LM311-SMT
BAL
7
6
8
5
NEG STEP DRIVER
3
D42
4148
^D_SOT-23
R207
2.21K
^R_0805
Q80
PWR-GND, TO SUPPLY CT
Q82
N279 C64
47pF-50V-5%
^C_0805
Q77
3904
^Q_BJTN_SOT-23
R223
Q78
3906
N280 47.5
^R_0805
^Q_BJTP_SOT-23
Q85
D
V-NEGSTEP
Q83
RFZ44
2
SPKR-B
P1
-HI-RAIL
2
Q86
RFZ44
+HI-RAIL
D47
15A-200V
+MID-RAIL
R238
1.5-2W
E11A E11B
E12A E12B
R239
1.5-2W
N248 C70
.1-250V
D46
15A-200V
SIZE FSCM NO.
D
C69
.1-250V
SCALE
E11C
E12C
-MID-RAIL
NONE
EMI_G
E10
N464
N465
BR-POS
TO CH A
SHEET 2
BR-NEG
1
CAD FILE NO.
DWG NO.
SH-002403-00
SHEET plx2402.sch
1
3 OF 5
REV
C
D
C
B
A
69
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
+15V
7
N282
6 5
+HI-RAIL
N286 N287
D
A
OPAMP POWER SUPPLIES
C
B
BR-ON
SH 2
D48
4148
^D_SOT-23
^Q_BJTP_SOT-23
R242
20.0K
^R_0805
P
Q87
3906
C71
DC_SENSE
SH 1, 2
47-10NP-10%
D50
4148
^D_SOT-23
N338
-DC THRESH, -4V
N339
D49
4148
^D_SOT-23
+DC THRESH 4V
DC MUTING
POWER LED
ON DISPLAY PCB
N349
14
J5:14 J6:14
14
N348
N350
16
J5:16 J6:16
16
+13VCL +14VIC
N283
+11V
P
-13VCL
-15V
N335
TO SHUTDOWN OPTOCOUPLER, SH 5 (6V)
DC-OFF
TO OPTOCOUPLER LED
1.6V OF HYSTERESIS
-14VIC
N284
DP - STBY
+MID-RAIL
N468
N285
-11V
A1
POSREF
N288
N322
V-NEGSTEP
N469
PLC-2 USES MID RAILS ONLY
+MID-RAIL
TO PWR SUPPLY C-T
P1
NEGREF
D88
10V-1N4740A
-MID-RAIL
-HI-RAIL
+15NTC
P1
3 +
2 -
U10:1
^LM393-SMT
SH 4
V-STBY
POS RAIL
P
-15NTC
-MID-RAIL
NTCBUS
1
15V-SW
SEE SH 5
N340
D51
4148
^D_SOT-23
N341
Q88
3906
D55
4148
^D_SOT-23
FAN SPEED THRESHOLD
P
ON-OFF DELAY,
THERMAL THRESHOLD
THERM HYST
R263
392K
^R_0805
N345 R270
1.50K
^R_0805
FROM PWR SUPPLY OPTOCOUPLER, SH 5
PS-OL
TO SHEETS 2 AND 3
MUTE+
FULL MUTE, 5.7V
FULL CUTBACK, 2.8V, 1MA
N344
5 +
U10:2
7
6 -
^LM393-SMT
MUTE_HI
P1
N474
N334
R253
4.75K
^R_0805
N347 C85
.001-5%
^C_1206
Q89
3904
^Q_BJTN_SOT-23
R264
2.21K
^R_0805
R265
2.21K
^R_0805
N352
R267
2.21K
^R_0805
+15V
Q91
TIP 32C
N353
Q90 N355
3904
^Q_BJTN_SOT-23
P
2
1
J13:1
J13:2
+FAN
-FAN
8 7 6
FAN SPEED CONTROL
5
-15V
70
4
4
CH B V-MON, I-MON
N361
L-Z_B1
N360
OUTER COIL, 6T
ROUTE TO SPKR OUTPUT
P1
CH A V-MON, I-MON
N324
OUTER COIL, 6T
L-Z_A1
N323
SPKR-A
ROUTE TO SPKR OUTPUT
P1
SPKR-B
D
D
3 2 1
N289
+11V
DP-PAR-F
SH 2
D
DP-BR-F
SH 3
N291
V-MON CH A
(NEW BMF SUBCODE,
0-2V, 0.5V BITS)
INJECT V-DC
POST OPAMP,
NO GAIN SCALING
D
N290
-11V
SEE SH 2
TH-SUBC-A
D
I-MON CH A
(WITH SEPARATE CH A
THERMAL SUBCODE)
D
N356
+11V
N357
D
-11V
N327
N328
N329
N363
N364
N365
N69
N149
D
N330
N366
D
+13VCL
N358
D
SEE SH 3
TH-SUBC-B
I-MON CH B
(WITH SEP. CH B
THERMAL SUBCODE)
+15V
FOR 1/8 WATT:
110 MA, 1.1V MAX
+IN_DPB
-IN_DPB
+IN_CH-B
-IN_CH-B
+IN_CH-A
-IN_CH-A
A1
A1
V-MON CH B
(PWR-SUPPLY- ON
SUBCODE: .8-1.3V)
SCALE 13V TO 1V NOM
-IN_DPA N293
N294
N295
N296
CLIP_A
SEE SH 2
+IN_DPA N304
CLIP_B
N315
N316
N305
N306
N307
SET ID- R
N313
N297
N298
EURO-PLUG:
RAVE SIGNAL
FORMAT
+A
-A
GND
N299
N300
N301
N302
N303
N308
N310
N311
N312
N317
N318
N319
N314
DATAPORT
HD-15 JACK
-IN, A
STBY
C
+15V ??
D-REF
-IN, B
IDR
VMON-B
IMON-B
CLIP-B
VMON-A
IMON-A
CLIP-A
CHAS GND
+IN, A
+IN, B
B
N460
N320
N321
EURO-PLUG:
RAVE SIGNAL
FORMAT
+B
-B
GND
CH GND
D
A
3 2
SIZE FSCM NO.
D
SCALE NONE CAD FILE NO.
DWG NO.
SH-002403-00 plx2402.sch
SHEET
1
4 OF 5
REV
C
D
C
B
A
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
7
INRUSH LIMITING RELAY.
QSC-COM, 30A, COIL 24V
MIN VOLT 18V, OK
N379
6
ES1
ES2
AC-SW
N381
5
PRI_HI
J19
AC-HI
120, 240V
1
2
AC-LO
J20
1
2
N371
F1
25A-125V
N369
3
L3:1
4
L3:2
2
1
LINE FILTER SHIELD
N374
3
L4:1
N375
4
L4:2
CH-GND
STUD
2
1
N376
N378
EH1
EH2
R324
10-OHM-20%
NTC: WRONG P/N:
PATTERN OK
NEW VALUE
10 OHMS, 180 JOULES
6
4
5
3
N380
E120B
600V-50A
BR1
2 AC1
AC2
3
T2:1
P5 P6 P7
TRANSFORMER
QUIET END
XF-79
C144
.47-400V
N309
N377
240V, FULL
WAVE RECT
EL1
E240
120V, VOLT
DOUBLER E120A
J120
PRI_LO
N384
N458
N472
PRI_LO
N372
Q92
3904
^Q_BJTN_SOT-23
N418
N370
IGBT HEAT SINK
E14
+18V
8 -
9 +
+VREF
U13:3
14
LM339
974K - 24.9K RES DIVIDER
340V NOM BUS = 8.67V
200V MIN BUS = 5.1V UV
Q93
3904
NOM BUS VOLTAGE 340V (120-240VAC)
MIN BUS VOLTAGE 200-220V (75-150 VAC)
PRI_LO
4148 ^D_SOT-23
RELAY 25MA
N406
^Q_BJTN_SOT-23
PRI_LO
R326
487K
^R_1206
N411
N410
C128
.0027
^C_0805
R328
487K
^R_1206
RELAY STARTS OFF LOW. 5V LINE
SETTLES HIGH BEFORE 16V > 8V,
BECAUSE TRIG IS LOW UP TO 10V
D91
4148
^D_SOT-23
N471
OFF-BUS VOLTAGES RISES
ONLY AFTER V-BIAS > 10V.
ENSURES THAT 556-TRIG
PIN STARTS LOW.
N412
N408
N413
R334
100
^R_0805
TIME DELAY
3 SECONDS
R335
150K
^R_1206
UNDERVOLTAGE SHUTDOWN
TRIGGERS AT 5.1 V-REF
RESETS AT 5.6V (10% HYST)
R332 N409
39.2K
^R_0805
N419
4V NOM
5V NOM
R369
1.00K
^R_1206
LM339
13
U13:4
LM339
1
U13:2
+VREF
N414
PRI_LO
NON CRIT BYPASS
PRI_LO
+VREF
PRI_LO
+
11
-
10
+
7
N444
-
6
N446
0V - RUN
5V - SHUTDOWN
8
TRIGGER
9
OUTPUT
10
11
CONTROL_V
12
THRESHOLD
13
RESET
DISCHARGE
.001-5% ^C_1206
4 -
5 +
N470
+16V
N445
U13:1
2
LM339
R340
392K
^R_0805
+16V
.1-50V-10% ^C_1206
N426
+18V
PRI_HI
R376
10.0K
^R_0805
D62
MURS120T3
PRI_LO
N117 R375
10.0K
^R_0805
Q99
3906
^Q_BJTP_SOT-23
N453 R374
536
^R_0805
D67
D63
4148
^D_SOT-23
D64
4148
^D_SOT-23
D65
4148
^D_SOT-23
D66
10V-.3W
^D_ZEN_SOT-23
4148
^D_SOT-23
+16V
PRI_LO
N424
N421
N422
D60
MURS160T3
^D_SMB
C127
.0022-250VAC
600V TRACE
PRI_LO
5 D
6 N/C
7 N/C
8 S
N/C
N/C
C
U16
TOP 210
S
4
3
2
1
5V NOM
N476
0.5-1 MA TO TRIGGER
6
U15
NC
5
1
4
NC
2
3
100PF @ 15KV ESD
100NF @ 15V BYPASS
.1-50V-10% ^C_1206
PRI_LO
DC-OFF
FROM DC SHUTDOWN,
SHEET 4
+6 V
N455
R353
10.0
^R_1206
N423
C142
100-25V
D68
^200V-.2A-50NS
^D_SOT-23
D69
4148
^D_SOT-23
+16V
R342
150K
^R_1206 N447
L6:2
3
PARALLEL WINDING ON
RESONANT INDUCTOR
4
R343
150K
^R_1206
N448
AVERAGE LIMITING HAS
SEVERAL SECOND TIME
CONSTANT TO REACH
2.4V THRESHOLD,
AVE CURRENT 20-25A
D61
^200V-.2A-50NS
^D_SOT-23
N450
Q95
3904
^Q_BJTN_SOT-23
1
U17
NC
2
3
NC
4
5
6
V-STBY
TO SH 4
+6 V
P
N452
PRI_LO PRI_LO
PS-OL
SH 4
4
1
L6:1
2
R372
56-2W
T2:2
XF-79
S11
S12
S13
S14
N388
N389
S15
S16
S17
N431
S18
N432
S19
S20
N433
P1
N429
N430
N387
3
Q96
IRG4PC50U
G
N390
R359
10.0
^R_1206
D78
^200V-.2A-50NS
^D_SOT-23
N391
Q97
IRG4PC50U
N392
G
R358
10.0
^R_1206
D79
^200V-.2A-50NS
^D_SOT-23
D80
15A-200V
D75
15A-200V
D81
15A-200V
D73
N438
TO TURN-OFF MUTING
SHEET 4 (FAN SPEED)
15V-SW
30A-400V
D85
30A-400V
D76
MURS120T3
D82
MURS120T3
D77
MURS120T3
D83
MURS120T3
^D_SMB
SMT-B PKG OK
L10
1
6UH-BEAD
2
L11
1
6UH-BEAD
L12
1 2
6UH-BEAD
2
N393
D72
30A-400V
D_TO247AD
N435
D84 N436
2 BEADS IN PAR HI RAIL
1 BEAD LO RAIL
L7
1 2
6UH-BEAD
L8
1 2
6UH-BEAD
30A-400V
D74 N437
15A-200V
1
L9
6UH-BEAD
2
NEW, LO-ESR, 2PL
N394
.1-50V-10% ^C_1206
+16V
N395
+15V
.1-50V-10% ^C_1206
P1
-15V
.1-50V-10% ^C_1206
PRI_LO
D86
MURS160T3
^D_SMB
+18V
1 LO
2 COM
U18
VSS
4
3 VCC
LIN
SD
5 VS
6 VB
7 HO
IR2110
HIN
VDD
8
9
10
12
11
14
13
USE THRU HOLE,
HIGHER WATTAGE
2
+HI-RAIL
+MID-RAIL
P1
-MID-RAIL
-HI-RAIL
+VREF
N441
R361
536
^R_0805
N442
N443
5
OUTPUT
4
1
RESET
3
CONTROL_V
2
THRESHOLD
DISCHARGE
PRI_LO
+16V
N401
PRI_LO
+VREF
C116
.1-50V-10%
^C_1206
Q98
3906
N439
^Q_BJTP_SOT-23
PRI_LO
6
TRIGGER
1
PRI_LO
N398
N397
.1-50V-10% ^C_1206
+VREF
U19
16 VREF
15 VIN
14 OUTB
13 VC
-IN
+IN
SYNC
OSC.OUT
12 GND
11 OUTA
CT
RT
10 SHTDWN
9 COMP
DISCHG
SFT-SRT
SG3525AN
5
6
7
8
3
4
1
2
PRI_LO
N402
N403
R364
100
^R_0805
8 7 6 5 4 3 2
SIZE FSCM NO.
D
SCALE NONE CAD FILE NO.
DWG NO.
SH-002403-00 plx2402.sch
SHEET
1
5 OF 5
REV
C
D
C
B
A
71
D
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
C
7
INPUT
LED
FILTER
GAIN
POT
DISPLAY
THERMAL
SENSING
LOOP GAIN
FEEDBACK
CURRENT
SPLITTER
POS STEP
POSITIVE
OUTPUTS
CLIP
LIMITING
NEGATIVE
OUTPUTS
NEG STEP
6
SPKR
OUTPUT
CHANNEL A
AUDIO CIRCUITS
SHEET 2
5 4 3
INPUT FILTER
GAIN
POT
THERMAL
SENSING
LOOP GAIN
FEEDBACK
CURRENT
SPLITTER
POS STEP
POSITIVE
OUTPUTS
BR MONO ROUTING
LED
DISPLAY
CLIP
LIMITING
NEGATIVE
OUTPUTS
NEG STEP
SPKR
OUTPUT
CHANNEL B
AUDIO CIRCUITS
SHEET 3
2
REVISION
1
D
C
B
OP-AMP
SUPPLIES
POWER
SUPPLY
BLEEDERS
DC FAULT
SHUTDOWN
THERMAL
SHUTDOWN
FAN SPEED
TO MUTE
CONTROL
SUPPORT AND
PROTECTION
CIRCUITS
SHEET 4
A
72
2. COMPONENTS WITH VALUE PREFIXED WITH A "^" REPRESENT SMT COMPONENTS.
1. THIS DRAWING USED IN CONJUNCTION WITH ASSEMBLY WP-000541-00.
NOTES: UNLESS OTHERWISE SPECIFIED
8 7 6 5
EMI
FILTER
SHUTDOWN
TRIGGERS
INRUSH
RELAY
RELAY
CONTROL
AC
RECT
BIAS
SUPPLY
OVERCURRENT
DETECTION
MAIN
FILTERS
IGBT
SWITCHES
HIGH FREQ
TRANSFORMER
ISOLATED
HIGH FREQ
RECTIFIERS,
FILTER CAPS
GATE
DRIVE
SWITCHING
OSCILLATOR
SWITCHING
POWER
SUPPLY
SHEET 5
VOLTAGE
120/230V
100V
TABULATION BLOCK
VARIABLE
R321, 322, 326, 328 - 487K, ^R_1206
R321, 322, 326, 328 - 392K, ^R_1206
B
4
QTY ITEM NO.
PART NO.
WP-000541-00 PLX 3002
NEXT ASSY
APPLICATION
USED ON
3
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES.
DIMENSIONS PER ANSI Y14.5-1982
TOLERANCES ARE:
DECIMALS DECIMALS ANGLES
O
.XX +.XXX
+-
DEBURR EDGES .XXX R MAX
MATERIAL
CONTRACT NO.
APPROVALS
DRAWN
PAT QUILTER
CHECKED
FINISH ISSUED
CAD SEED FILE NO.
DO NOT SCALE DRAWING
DATE
5-15-98
DESCRIPTION
PARTS LIST
PLOT DATE:
Wed Dec 09, 1998
2
VENDOR
AUDIO PRODUCTS, INC.
COSTA MESA, CALIFORNIA
SIZE FSCM NO.
D
NONE
SCHEMATIC DIAGRAM
PLX 3002
CAD FILE NO.
DWG NO.
SH-000541-00
SHEET plx3002.sch
P:\TANGOPRO\PLX\PLX3002 1
1 OF 5
REV
C
A
D
C
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
7
INPUT AND FILTER SECTION, CH A
J1
J2
+XLR_B
2
3
1
R
T
S
RING
TIP
N1
3
2
J3:3
J3:2
J3:1
1
4
J3:4
J4:1
J4:4
A-1 GND
A-4, GND
A-2 +A
A-3 -A
SH 4, EURO-INPUTS
-IN_CH-A +IN_CH-A
N4
J4:3
3
-IN_DPA
R5 NEG INPUT
75
^R_0805
J4:2
R9
5.60K-.1%
2
4
1
A1
N6
-XLR_B
INPUTS IN PARALLEL
- SH 3
^C_1206
+13IN
C195
.001-5%
20
SW1:4
14
DIP-10
J3:20
4
N25
J4:20
A-20, +13V
20
POS INPUT
R6
75
^R_0805
R8
5.60K-.1%
10
+IN_DPA
DATAPORT CONNECTED TO INPUT
AS USUAL TO MINIMIZE CROSSTALK
WHEN USING REGULAR INPUTS
J3:10 J4:10
A-10, LED-PAR
10
DP-PAR-F
SH 4
N27
+13VCL
N8 C5
100pF-50V-5%
^C_0805
R12
5.60K-.1% A1
N10
3 +
+14VIC SIGNAL
POLARITY
INVERTED
U1:1
MC33078-SMT
1
2 -
N9
-14VIC
R13
5.60K-.1%
C6
100pF-50V-5%
^C_0805
C7
6
A1
J4:6
SW1:3
13
DIP-10
3
A-6, GND
J3:6
6
N463
SW1:2
12
DIP-10
2
47-10NP-10%
2 POLE CASCADED ROLLOFF
-0.15dB, 20Hz. -0.4dB, 10Hz.
C8
.1-5%
R17
4.75K
^R_0805
N12
C12
.1-5%
N16
DIP SWITCH TABLE, 10-POS
1 - CLIP LIM, CH-A
2 - LF FILT, CH-A
3 - 30 HZ LF, CH-A
4 - PAR INPUT LED
5 - PAR INPUTS, +
6 - PAR INPUTS, -
7 - BR MONO
8 - 30 HZ LF, CH B
9 - LF FILT, CH B
10- CLIP LIM CH B
6
N13 R25
15.0K
^R_0805
N17
5 + U1:2
7
6 -
MC33078-SMT
SIGNAL
POLARITY
INVERTED
THERMAL
AND BIAS
SENSING
AMP LOOP GAIN -- 32DB REVISION
USE SAME VALUE AS PLC-2
NTCBUS
N45 R41
1.50K
^R_0805
N230
R101
1.50K
^R_0805
P
TH-SUBC-A
N49
N473
PARALLEL
INPUT SW.
STATUS LED
N28
N29
N31
12
J5:12
4
J5:4
W
N32
3
J5:3
GAIN
N33
1
J5:1
2
J5:2
J6:12
12
J6:4
J6:3
J6:1
J6:2
1
2
4
3
N26
N35
N34
A1
R-parallel, 7.5K, 10K, 4.7K, = 2.24K
R15
7.50K
^R_0805 R14
12.7K
^R_0805
C9
100pF-50V-5%
^C_0805
R11
4.75K
^R_0805
N37
3 +
2 -
R16
12.7K
^R_0805
U2:1
NE5532
1
BR MONO FEED, SH 3
CH_A_SIG
A1
DISCUSS STAR GND
R22
A1
536
^R_0805
R29
5.90K
^R_0805
ROUTE TO SPKR OUTPUT.
R226 = 5.90K for PLC-2
P1
+14VIC
SIGNAL
POLARITY
INVERTED
C11
47-10NP-10%
R23
1.50K
^R_0805
N40
5 +
N41
C14
6 -
U2:2
NE5532
7
N42
10pF-50V-5%
^C_0805
-14VIC
U_OPAMP_DUAL1
SPKR_BUS_A
R31
16.5K-1/2W-1%
C16
N44
N43
CCW
250
VR43
4148 ^D_SOT-23
CW
-15NTC
B 15pF
LED-SIGNAL DISPLAY
SH 3
+14_DISP N110
8
J5:8
Q1
3906
^Q_BJTP_SOT-23
J6:8
8
SH 4
+14VIC
5
SW1:1
1
DIP-10
J3:5
11
J4:5
A-5, CLIP A
+13IN
5
N126
+13VCL
Q12
3906
R106
12.7K
^R_0805
N87
N136
A
Q2
3906
^Q_BJTP_SOT-23
Q3
3906
^Q_BJTP_SOT-23
Q4
3906
^Q_BJTP_SOT-23
CLIP
RED
LD5
8
N119
R3 N115
D1
4.75K
^R_0805
4148
^D_SOT-23
Q5
3904
^Q_BJTN_SOT-23
5
J5:5
6
J5:6
N118
D2
PWR GND 4148
^D_SOT-23
J6:5
J6:6
6
5
P
N120
N116
7
^U_LM13600
7
J5:7
7
U3:1
LM13600M
5
N130
J6:7
7
N121
-
+
2
4
3
R18
20.0K
^R_0805
N127
Q6
3906
^Q_BJTP_SOT-23
N124
100 ^R_0805
P
N128
-13VCL
6
Q9
3904
^Q_BJTN_SOT-23
Q7
3904
Q10
3906
^Q_BJTP_SOT-23
N133
^Q_BJTN_SOT-23 Q8
3904
^Q_BJTN_SOT-23
N134
P
^Q_BJTP_SOT-23
Q13
3904
^Q_BJTN_SOT-23
R44
383
^R_0805
P
5
5
N48
+15NTC
CLIP-LIMIT
PROCESSOR
N50
PROT
SH 3
N88
DATAPORT, SH 4, CLIP A
N138 CLIP_A
POS STEP DRIVER
C20
.0027
^C_0805
R48
2.00K
^R_0805
D89
4148
^D_SOT-23
MUTE_HI
SH 4
R50
30.1K
^R_1206
R52
150K
^R_1206
POSREF
R54
150K
^R_1206
DC_SENSE
SH 4
N139
R55
4.75K
^R_0805
R56
4.75K
^R_0805
NEGREF N141
R57
150K
^R_1206
R58
150K
^R_1206
4
4
N56
R66 N57
D7
N55
392K
^R_0805
U4
2
1 GND
V+
3
4 V-
BAL/STR
BAL
^LM311-SMT
6
5
7
8
10V-1N4740A
.36W at full clip
R2
47.5K
^R_0805
R63
4.75K
^R_0805
R64
4.75K
^R_0805
N396 C187
47pF-50V-5%
^C_0805
R69
392K
^R_0805
U5
N144
2
1 GND
V+
3
4 V-
BAL/STR
BAL
^LM311-SMT
6
5
7
8
N145
NEG STEP DRIVER
D15
3.01K
^R_0805
N58
R79
4148
^D_SOT-23
N59
P
P
Q15
3904
^Q_BJTN_SOT-23
N98
N92
Q17
300V-.2A
^Q_BJTP_SOT-23
N97
P
-15NTC
N96
Q21
N93
2N3906
N478
.1-50V ^C_1206
R382
100
^R_0805
Q23
3906
^Q_BJTP_SOT-23
N94
Q22
2SA1837
N95
Q25
3904
^Q_BJTN_SOT-23
N99
470pF ^C_1206
R80
5.6-2W
D13
200V-.2A-50NS
^D_SOT-23
N100
N101 D12
4148
^D_SOT-23
R77
4148 ^D_SOT-23
Q27
MJE15032
N102
N103
39.2K
^R_0805
D8
4148
^D_SOT-23
R82 200
P
D17
4148
^D_SOT-23
R84
2.21K
^R_0805
3
3
Q30
3904
^Q_BJTN_SOT-23
Q31
3906
^Q_BJTP_SOT-23
POS OUTPUT SECTION
N104
Q29
2SC3281 2SC3281
NEG OUTPUT SECTION
N146
C30
47pF-50V-5%
^C_0805
Q35
^Q_BJTP_SOT-23
N60
^Q_BJTP_SOT-23
P
Q14
3906
N64
P
N90
FULL MUTE, 5.7V
MUTE+
Q16
300V-.2A
SEE SH 4
^Q_BJTN_SOT-23
N91
Q24
3906
N66
^Q_BJTP_SOT-23
Q18
N67
+15NTC
R381
3904
^Q_BJTN_SOT-23
N477
100
^R_0805
Q19
2SC4793
Q20
2N3904
N78
R76
39.2K
^R_0805
D9
R81 200
N68
100K ^R_1206
4148
^D_SOT-23
D14
Q26
MJE15033
4148
^D_SOT-23
D16
200V-.2A-50NS
^D_SOT-23
SPKR_BUS_A
N84
680pF ^C_0805
N85 C27
.022
R367
15-2W
N71
2SA1302
Q28
2SA1302
Q34
2SA1302
R98
5.6-2W
N86
Q36
L-Z_A1
I-MON SH 4
N81
L1
1
2UH-14GA-AIR
2
N80
2SA1302
Q39
D
PWR-GND, TO SUPPLY CT
C29
Q37
2SC3281
47pF-50V-5%
^C_0805
Q32
3904
^Q_BJTN_SOT-23
R100
Q33
3906
N147 47.5
^R_0805
P
N63
N61 R110
47.5
^R_0805
N62
Q40
2SC3281
SPKR-A
E9A
E10A E10B
P1
V-NEGSTEP
Q38
RFZ44
-HI-RAIL
Q41
RFZ44
E9B
2
D22
15A-200V
R115
1.5-2W
N75 C34
.1-250V
R116
1.5-2W
N108 C35
.1-250V
2
N461
D21
15A-200V
+HI-RAIL
+MID-RAIL
E9C
E10C
-MID-RAIL
D
N459
N109
BR-POS
FROM CH B
SHEET 3
BR-NEG
NONE
EMI_G
SIZE FSCM NO.
1
CAD FILE NO.
DWG NO.
SH-000541-00 plx3002.sch
SHEET
1
2 OF 5
REV
C
D
C
B
A
73
D
C
B
A
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
7
INPUT AND FILTER SECTION, CH B
J9
R
T
S
RING
TIP
18
19
SH 4, EURO-INPUTS
-IN_CH-B +IN_CH-B
A-18, -B
N475
J3:18 J4:18
J3:19 J4:19
A-19, +B
18
19
R123
75
^R_0805
N457
17
J3:17 J4:17
A-17, GND
17
A1
-IN_DPB
N151
NEG INPUT R129
5.60K-.1%
2
3
1
.1-50V-10% ^C_1206
J10
+XLR_B -XLR_B
SH 2, INPUT-PARALLEL SW
13
J5:13
C-13, BR-L
J6:13
13
C196
.001-5%
^C_1206
11
J4:11 J3:11
A-11, BR-M
N177
POS INPUT
R124
75
^R_0805
11
R130
+IN_DPB
5.60K-.1%
N153
N178
7
SW1:7
DIP-10
17
+13IN
D24 N179
DP-BR-F
SH 4
4148
^D_SOT-23
N152
C40
100pF-50V-5%
^C_0805
R135
5.60K-.1%
+14VIC
3 +
2 -
N154
MC33078-SMT
-14VIC
1
U6:1
R136
5.60K-.1%
C41
100pF-50V-5%
N182
^C_0805
A1
N155 C44
SIGNAL
POLARITY
INVERTED
.1-5%
R138 N161
4.75K
^R_0805
R140
7.50K
^R_0805
C47
.1-5%
N159
15
N162
J4:15
SW1:8
18
DIP-10
J3:15
A1
A-15, GND
8
N163
15
N164
19
SW1:9
DIP-10
9
N157
N156
BR MONO
STATUS
LED
15
J5:15 J6:15
C-14, BR-L
+13VCL
BR-ON
SH 4
D23
4148
^D_SOT-23
Q42
3906
^Q_BJTP_SOT-23
N181 D25 N183 R134
15
GAIN
17
J5:17
N185
W 18
J6:17
J5:18
19
J5:19
20
J5:20
17
J6:18
J6:19
J6:20
4148
^D_SOT-23
12.7K
^R_0805
18
N186 R133
12.7K
^R_0805
19
BR-MONO
CH B INPUT CLAMP
Q50
3904
^Q_BJTN_SOT-23
20
A1
CH_A_SIG
N194
R120
7.50K
^R_0805
R122
5.90K
^R_0805
N195
Q46
3906
^Q_BJTP_SOT-23
A1
N196 R127
2.00K
^R_0805
R132
7.50K
^R_0805
STEREO - CLAMPED
BR-MONO - OPEN
N197
R137
4.75K
^R_0805
N198
Q48
3906
^Q_BJTP_SOT-23
N189 C43
100pF-50V-5%
^C_0805
3 +
U7:1
NE5532
1
2 -
U_OPAMP_DUAL1
N191 R139
12.7K
^R_0805
A1
DISCUSS STAR GND
R146
A1
536
^R_0805
SIGNAL
POLARITY
INVERTED
C46
47-10NP-10%
R147
1.50K
^R_0805
6
DIP SWITCH TABLE, 10-POS
1 - CLIP LIM, CH-A
2 - LF FILT, CH-A
3 - 30 HZ LF, CH-A
4 - PAR INPUT LED
5 - PAR INPUTS, +
6 - PAR INPUTS, -
7 - BR MONO
8 - 30 HZ LF, CH B
9 - LF FILT, CH B
10- CLIP LIM CH B
R148
15.0K
^R_0805
N158
5 + U6:2
7
6 -
MC33078-SMT
N160
N201
THERMAL
AND BIAS
SENSING
R152
5.90K
^R_0805
ROUTE TO SPKR OUTPUT.
R226 = 5.90K for PLC-2
P1
+14VIC
5 +
C49
6 -
SIGNAL
POLARITY
INVERTED
P
10pF-50V-5%
^C_0805
-14VIC
R153
16.5K-1/2W-1%
U7:2
NE5532
7
N203
NTCBUS
N202
SPKR_BUS_B
C50
15pF
-13VCL
LED-SIGNAL DISPLAY
Q43
3906
^Q_BJTP_SOT-23
N249
N251
R128
1.00K
^R_1206
+14_DISP
+13IN
16
10
SW1:10
DIP-10
J3:16
20
J4:16
A-16, CLIP-B
16
+13VCL
N266
R109
1.50K
^R_0805
N204
N206
N208
R164
1.50K
^R_0805
250
VR166
CCW
Q57
3906
4148 ^D_SOT-23
5
TH-SUBC-B
N150
CW
-15NTC
8
Q44
3906
^Q_BJTP_SOT-23
N252
Q45
3906
^Q_BJTP_SOT-23
Q47
3906
^Q_BJTP_SOT-23
CLIP
RED
LD10
N257
R125
4.75K
^R_0805
PWR GND
11
J5:11
N253 D26
4148
^D_SOT-23
Q49
3904
^Q_BJTN_SOT-23
J6:11
11
10
J5:10 J6:10
10
D27
4148
^D_SOT-23
P
7
N254
N256
N258
9
J5:9
10
U3:2
LM13600M
12
J6:9
9
R141
20.0K
^R_0805
N259
N270
-
+
14
15
13
Q51
3906
^Q_BJTP_SOT-23
N271
100 ^R_0805
P
N265
Q54
3904
^Q_BJTN_SOT-23
Q52
3904
Q55
3906
^Q_BJTP_SOT-23
N274
^Q_BJTN_SOT-23 Q53
3904
^Q_BJTN_SOT-23
N275
6
-13VCL
P
P
CLIP-LIMIT
PROCESSOR
5
+15NTC
N207
4
POS STEP DRIVER
N209
^Q_BJTP_SOT-23
Q58
3904
^Q_BJTN_SOT-23
PROT
SH 2
DATAPORT, SH 4, CLIP B
N269 CLIP_B
R167
383
^R_0805
C55
.0027
^C_0805
R171
2.00K
^R_0805
N165 R175
150K
^R_1206
POSREF
Q61
300V-.2A
^Q_BJTN_SOT-23
MUTE+
SEE SH 4
P
P
P
R173
30.1K
^R_1206
R177
150K
^R_1206
Q59
3906
^Q_BJTP_SOT-23
Q60
3904
^Q_BJTN_SOT-23
N238
R178
4.75K
^R_0805
N167
R179
4.75K
^R_0805
N210
N231
N232
Q62
300V-.2A
^Q_BJTP_SOT-23
N237
P
-15NTC
N233
N169
3
R189 N170
N166
N168
D32
10V-1N4740A
.36W at full clip
392K
^R_0805
U8
2
1 GND
V+
3
4 V-
BAL/STR
BAL
^LM311-SMT
7
8
6
5
N171
D40
R202
3.01K
^R_0805
4148
^D_SOT-23
680pF ^C_0805
N226 C62
.022
R368
15-2W
470pF ^C_1206
R203
5.6-2W
P
N480
R384
100
^R_0805
Q68
3906
^Q_BJTP_SOT-23
Q66
2N3906
N234
N235
Q67
2SA1837
N236
Q70
3904
^Q_BJTN_SOT-23
N239
N240
D38
200V-.2A-50NS
^D_SOT-23
N242
4148 ^D_SOT-23
D37
Q72
MJE15032
4148
^D_SOT-23
R200
N243
N241
^C_0805 R191
39.2K
^R_0805
D33
4148
^D_SOT-23
DC_SENSE
SH 4
NEGREF
R180
150K
^R_1206
R181
150K
^R_1206
4
N276
R43
47.5K
^R_0805
R186
4.75K
^R_0805
N278
R187
4.75K
^R_0805
N481 C193
47pF-50V-5%
^C_0805
R192
392K
^R_0805
U9
N277
2
1 GND
V+
3
4 V-
BAL/STR
BAL
^LM311-SMT
7
8
6
5
NEG STEP DRIVER
3
D42
4148
^D_SOT-23
R207
Q74
N172 C65
47pF-50V-5%
^C_0805
Q75
3904
^Q_BJTN_SOT-23
Q76
3906
^Q_BJTP_SOT-23
2SC3281
2SC3281 2SC3281 2SC3281
NEG OUTPUT SECTION
Q80
N173
Q82
N279 C64
47pF-50V-5%
^C_0805
Q77
3904
^Q_BJTN_SOT-23
R223
Q78
3906
N280 47.5
^R_0805
^Q_BJTP_SOT-23
N174 R233
47.5
^R_0805
POS OUTPUT SECTION
P
N211
+15NTC
Q69
3906
N212
^Q_BJTP_SOT-23
N213
Q63
3904
^Q_BJTN_SOT-23
N479
N222
R199
39.2K
^R_0805
R204 200
100K ^R_1206
D34
4148
^D_SOT-23
N214
D39
Q71
MJE15033
4148
^D_SOT-23
D41
R383
100
^R_0805
Q64
2SC4793
N224
Q65
2N3904
N225
200V-.2A-50NS
^D_SOT-23
SPKR_BUS_B
2SA1302
Q73
N216
2SA1302 2SA1302 2SA1302
N221
Q79
L-Z_B1
Q81
I-MON-B, SH 4
N227
L2
1
2UH-14GA-AIR
2
P
Q84
R221
5.6-2W
N229
D
PWR-GND, TO SUPPLY CT
Q85
V-NEGSTEP
Q83
RFZ44
2
SPKR-B
P1
-HI-RAIL
2
Q86
RFZ44
+HI-RAIL
D47
15A-200V
+MID-RAIL
R238
1.5-2W
E11A E11B
E12A E12B
R239
1.5-2W
N248 C70
.1-250V
D46
15A-200V
SIZE FSCM NO.
D
C69
.1-250V
SCALE
E11C
E12C
-MID-RAIL
NONE
EMI_G
E10
N464
N465
BR-POS
TO CH A
SHEET 2
BR-NEG
1
CAD FILE NO.
DWG NO.
SH-000541-00 plx3002.sch
SHEET
1
3 OF 5
74
REV
C
D
C
B
A
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
+15V
7
N282
6 5
+HI-RAIL
N286 N287
D
A
OPAMP POWER SUPPLIES
C
B
BR-ON
SH 3
D48
4148
^D_SOT-23
^Q_BJTP_SOT-23
R242
20.0K
^R_0805
P
Q87
3906
C71
DC_SENSE
SH 2, 3
47-10NP-10%
D50 N338
4148
^D_SOT-23
-DC THRESH, -4V
D49
4148
^D_SOT-23
N339
+DC THRESH 4V
DC MUTING
POWER LED
ON DISPLAY PCB
N349
14
J5:14 J6:14
14
N348
N350
16
J5:16 J6:16
16
+13VCL +14VIC
N283
+11V
P
-13VCL
-15V
N335
TO SHUTDOWN OPTOCOUPLER, SH 5 (6V)
DC-OFF
TO OPTOCOUPLER LED
1.6V OF HYSTERESIS
-14VIC
N284
DP - STBY
+MID-RAIL
N468
N285
-11V
A1
POSREF
N288
N322
V-NEGSTEP
N469
PLC-2 USES MID RAILS ONLY
+MID-RAIL
TO PWR SUPPLY C-T
P1
NEGREF
D88
10V-1N4740A
-MID-RAIL
-HI-RAIL
+15NTC
P1
3 +
2 -
U10:1
^LM393-SMT
SH 5
V-STBY
POS RAIL
P
-15NTC
-MID-RAIL
NTCBUS
1
15V-SW
SEE SH 5
N340
D51
4148
^D_SOT-23
N341
Q88
3906
D55
4148
^D_SOT-23
FAN SPEED THRESHOLD
P
ON-OFF DELAY,
THERMAL THRESHOLD
THERM HYST
R263
392K
^R_0805
N345 R270
1.50K
^R_0805
FROM PWR SUPPLY OPTOCOUPLER, SH 5
PS-OL
TO SHEETS 2 AND 3
MUTE+
FULL MUTE, 5.7V
FULL CUTBACK, 2.8V, 1MA
N344
5 +
U10:2
7
6 -
^LM393-SMT
MUTE_HI
P1
N474
N334
R253
4.75K
^R_0805
N347 C85
.001-5%
^C_1206
Q89
3904
^Q_BJTN_SOT-23
R264
2.21K
^R_0805
R265
2.21K
^R_0805
N352
R267
2.21K
^R_0805
+15V
Q91
TIP 32C
N353
Q90 N355
3904
^Q_BJTN_SOT-23
P
2
1
J13:1
J13:2
+FAN
-FAN
8 7 6
FAN SPEED CONTROL
5
-15V
4
CH B V-MON, I-MON
N361
L-Z_B1
N360
OUTER COIL, 6T
ROUTE TO SPKR OUTPUT
P1
CH A V-MON, I-MON
N324
OUTER COIL, 6T
L-Z_A1
N323
SPKR-A
ROUTE TO SPKR OUTPUT
P1
SPKR-B
D
D
3
V-MON CONVERSION SCALES:
PLC-2: (sim to 1.4) 30.1K / 2.00K = 15.05 Vout/Vmon
PLC-3: (between 1.8, 2.0) 33.2K / 1.5K = 22.13 Vout/Vmon
N289
+11V
DP-PAR-F
SH 2
D
DP-BR-F
SH 3
N291
2
V-MON CH A
(NEW BMF SUBCODE,
0-2V, 0.5V BITS)
INJECT V-DC
POST OPAMP,
NO GAIN SCALING
1
BMF VOLTAGE SCHEME: BINARY CODING, 2 BITS
SOURCE VOLTAGE, 13V NOM, 11V-14.5V (UNREG)
STEREO (NORMAL): BINARY 0,0 = 0V OUT
INPUTS PARALLEL: BINARY 0,1 = .5V NOM, .42-.575,
BR MONO: BINARY 1,0 = 1.0V NOM, .85-1.15
BR-MONO + PAR: BINARY 1,1 = 1.5V NOM, 1.27-1.72
NOM THRESHOLDS, 0.25, .75, 1.25.
FOR UNREG TRACKING DECODING, USE V-ON (1V NOM) AS REF D
N290
-11V
D
N356
+11V
N357
D
-11V
N327
N328
N329
N363
N364
N365
N69
N149
D
N330
N366
D
+13VCL
N358
SEE SH 2
TH-SUBC-A
D
I-MON CH A
(WITH SEPARATE CH A
THERMAL SUBCODE)
D
SEE SH 3
TH-SUBC-B
I-MON CH B
(WITH SEP. CH B
THERMAL SUBCODE)
+15V
FOR 1/8 WATT:
110 MA, 1.1V MAX
+IN_DPB
-IN_DPB
DATAPORT INPUT SENSITIVITY:
PLC 2:
7.87K / 5.60 K,
1.23V-IN -> 2.95V-DP
PLC-3:
4.75K / 5.60K
1.70V-IN -> 3.15V-DP
+IN_CH-A
-IN_CH-A
+IN_CH-B
-IN_CH-B
A1
A1
V-MON CH B
(PWR-SUPPLY- ON
SUBCODE: .8-1.3V)
SCALE 13V TO 1V NOM
-IN_DPA
+IN_DPA
N293
N294
N295
N296
CLIP_A
SEE SH 2
N304
CLIP_B
N315
N316
N305
N306
N307
SET ID- R
N313
N297
N298
EURO-PLUG:
RAVE SIGNAL
FORMAT
+A
-A
GND
N299
N300
N301
N302
N303
N308
N310
N311
N312
N317 N318
N319
N314
DATAPORT
HD-15 JACK
-IN, A
C
-IN, B
IDR
VMON-B
IMON-B
CLIP-B
STBY
VMON-A
IMON-A
CLIP-A
CHAS GND
+IN, A
+IN, B
+15V ??
D-REF
B
N460
N320
N321
EURO-PLUG:
RAVE SIGNAL
FORMAT
+B
-B
GND
CH GND
D
A
4 3 2
SIZE FSCM NO.
D
SCALE NONE CAD FILE NO.
DWG NO.
SH-000541-00 plx3002.sch
SHEET
1
4 OF 5
REV
C
75
D
C
B
A
8
THIS DOCUMENT CONTAINS PROPRIETARY
INFORMATION WHICH IS THE PROPERTY
OF QSC AUDIO PRODUCTS, THAT MAY NOT
BE DISCLOSED, REPRODUCED OR USED
WITHOUT EXPRESS WRITTEN CONSENT FROM
QSC AUDIO PRODUCTS.
7
750K, X-CAP DISCHARGE
TO MEET IEC STANDARD:
BECAUSE X-CAP EXCEEDS 0.1UF
MUST DISCHARGE X-CAP TO
34 V WITHIN 2 SECONDS.
230V X 1.41 = 325V ->34 V
FOR C = 1.5UF, R < 628K, 0.1W
LINE FILTER SHIELD
6 5
J19
AC-HI
120, 240V
1
2
AC-LO
J20
1
2
N371
F1
25A-125V
N369
3
L3:1
1
N374
3
L4:1
1
N376
NTC NEXT TO RELAY
LOCATE DOWNSTREAM
OF FILTER, OUTSIDE SHIELD
INRUSH APPROX 0.5 SEC
INRUSH LIMITING RELAY.
QSC-COM, 30A, COIL 24V
MIN VOLT 18V, OK
N379
N378
6
4
5
3
EH1
EH2
R324
10-OHM-20%
ES1
ES2
AC-SW
N380
600V-50A
BR1
2 AC1
AC2
3
N381
PRI ENERGY STORAGE, 6 PL
USE 4 PL FOR PLC-2
PRI_HI
T2:1
E120B
P5 P6 P7
C144
.47-400V
TRANSFORMER
QUIET END
4
L3:2
2
N375
4
L4:2
CH-GND
STUD
2
N377 PRI_LO
240V, FULL
WAVE RECT
EL1
E240
120V, VOLT
DOUBLER E120A
N384
N458
N472
N309
PRI_LO
N372
Q92
3904
^Q_BJTN_SOT-23
N418
N370
IGBT HEAT SINK
E14
SDFAF
+18V
PRI_LO
4148 ^D_SOT-23
RELAY 25MA
^Q_BJTN_SOT-23
PRI_LO
R326
487K
^R_1206
8 -
9 +
N406
+VREF
U13:3
14
LM339
974K - 24.9K RES DIVIDER
340V NOM BUS = 8.67V
200V MIN BUS = 5.1V UV
Q93
3904
NOM BUS VOLTAGE 340V (120-240VAC)
MIN BUS VOLTAGE 200-220V (75-150 VAC)
N411
N410
C128
.0027
^C_0805
R328
487K
^R_1206
RELAY STARTS OFF LOW. 5V LINE
SETTLES HIGH BEFORE 16V > 8V,
BECAUSE TRIG IS LOW UP TO 10V
D91
4148
^D_SOT-23
N471
OFF-BUS VOLTAGES RISES
ONLY AFTER V-BIAS > 10V.
ENSURES THAT 556-TRIG
PIN STARTS LOW.
N412
N408
4V NOM
100
^R_0805
UNDERVOLTAGE SHUTDOWN
TRIGGERS AT 5.1 V-REF
RESETS AT 5.6V (10% HYST)
R332 N409
39.2K
^R_0805
N419
R335
150K
^R_1206
N413
R334
TIME DELAY
3 SECONDS
R369
1.00K
^R_1206
LM339
13
U13:4
LM339
1
U13:2
PRI_LO
NON CRIT BYPASS
PRI_LO
5V NOM
+VREF
N414
+VREF
PRI_LO
+
11
-
10
+
7
N444
-
6
N446
0V - RUN
5V - SHUTDOWN
8
TRIGGER
N426
+18V
9
OUTPUT
10
11
CONTROL_V
12
THRESHOLD
13
RESET
DISCHARGE
.001-5% ^C_1206
PRI_HI
R376
10.0K
^R_0805
D62
MURS120T3
PRI_LO
N117 R375
10.0K
^R_0805
Q99
3906
^Q_BJTP_SOT-23
N453 R374
536
^R_0805
D67
D63
4148
^D_SOT-23
D64
4148
^D_SOT-23
D65
4148
^D_SOT-23
D66
10V-.3W
^D_ZEN_SOT-23
4148
^D_SOT-23
+16V
PRI_LO
+16V N424
4 -
5 +
U13:1
2
LM339
R340
392K
^R_0805
.1-50V-10% ^C_1206
N421
N422
D60
MURS160T3
^D_SMB
C127
.0022-250VAC
600V TRACE
PRI_LO
5 D
6 N/C
7 N/C
8 S
N/C
N/C
C
U16
TOP 210
S
3
2
1
4
5V NOM
N476
N423
C142
100-25V
N470
N445
+16V
0.5-1 MA TO TRIGGER
U15
6
NC
5
1
4
NC
2
3
100PF @ 15KV ESD
100NF @ 15V BYPASS
.1-50V-10% ^C_1206
PRI_LO
+6 V
R353
COMBINED EFFECT OF
150K-1206 RESISTOR AND
10K, 12.7K THRESHOLD
RAISES PEAK LIMIT 25%
RELATIVE TO PROTO
DC-OFF
FROM DC SHUTDOWN,
SHEET 4
R342
150K
^R_1206 N447
L6:2
3
PARALLEL WINDING ON
RESONANT INDUCTOR
4
R343
150K
^R_1206
N448
AVERAGE LIMITING HAS
SEVERAL SECOND TIME
CONSTANT TO REACH
2.4V THRESHOLD,
AVE CURRENT 20-25A
D61
^200V-.2A-50NS
^D_SOT-23
N450
+16V
N455
Q95
3904
^Q_BJTN_SOT-23
1
U17
NC
5
6
2
3
NC
4
10.0
^R_1206
+6 V
D68
^200V-.2A-50NS
^D_SOT-23
V-STBY
TO SH 4
PRI_LO PRI_LO
PS-OL
SH 4
D69
4148
^D_SOT-23
P
N452
4
1
L6:1
2
R372
56-2W
T2:2
S11
S12
S13
S14
N388
N389
S15
S16
S17
N431
S18
N432
S19
S20
N433
P1
N429
N430
3
N387
Q96
IRG4PC50U
G
N390
R359
10.0
^R_1206
D78
^200V-.2A-50NS
^D_SOT-23
N391
Q97
IRG4PC50U
G
N392
R358
10.0
^R_1206
D79
^200V-.2A-50NS
^D_SOT-23
D75
15A-200V
D81
15A-200V
D73
N438
TO TURN-OFF MUTING
SHEET 4 (FAN SPEED)
15V-SW
30A-400V
D85
30A-400V
D76
MURS120T3
D82
MURS120T3
D77
MURS120T3
D83
MURS120T3
^D_SMB
SMT-B PKG OK
L10
1
6UH-BEAD
2
L11
1
6UH-BEAD
L12
1 2
6UH-BEAD
2
N393
D72
30A-400V
D_TO247AD
N435
D84 N436
2 BEADS IN PAR HI RAIL
1 BEAD LO RAIL
L7
1 2
6UH-BEAD
L8
1 2
6UH-BEAD
D74
30A-400V
N437
15A-200V
1
L9
6UH-BEAD
2
D80
15A-200V
NEW, LO-ESR, 2PL
N394
.1-50V-10% ^C_1206
+16V
N395
+15V
.1-50V-10% ^C_1206
PRI_LO
P1
-15V
.1-50V-10% ^C_1206
D86
MURS160T3
^D_SMB
+18V
1 LO
2 COM
U18
4
3 VCC
VSS
LIN
SD
5 VS
6 VB
7 HO
HIN
VDD
IR2110
12
11
10
8
9
14
13
USE THRU HOLE,
HIGHER WATTAGE
2
+HI-RAIL
+MID-RAIL
P1
-MID-RAIL
-HI-RAIL
+VREF
N441
R361
536
^R_0805
N442
N443
5
OUTPUT
4
1
RESET
3
CONTROL_V
2
THRESHOLD
DISCHARGE
PRI_LO
+16V
N401
PRI_LO
+VREF
C116
.1-50V-10%
^C_1206
Q98
3906
N439
^Q_BJTP_SOT-23
PRI_LO
6
TRIGGER
1
PRI_LO
N398
N397
.1-50V-10% ^C_1206
+VREF
U19
16 VREF
15 VIN
14 OUTB
13 VC
12 GND
-IN
+IN
SYNC
OSC.OUT
CT
11 OUTA
10 SHTDWN
9 COMP
RT
DISCHG
SFT-SRT
SG3525AN
1
2
3
4
6
7
8
5
PRI_LO
N402
N403
R364
100
^R_0805
8 7 6 5 4 3 2
SIZE FSCM NO.
D
SCALE NONE CAD FILE NO.
DWG NO.
SH-000541-00 plx3002.sch
SHEET
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“QSC” and the QSC logo are registered trademarks of QSC Audio Products, Inc. 1675 MacArthur Blvd. Costa Mesa, CA 92626
(800) 772-2834 FAX (714)754-6173 www.qscaudio.com
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