Usl CM Series Instruction manual

CM SERIES
8 Channel Monitor / Crossover
181 Bonetti Drive
San Luis Obispo, CA 93401
ph: 805-549-0161
fax: 805-549-0163
e-mail:usl@uslinc.com
CM Series INSTRUCTION MANUAL
Ultra Stereo Labs, Inc.
One Year Limited Warranty
USL, Inc. warrants that each product manufactured by it will be
free from defects in material and workmanship under normal usage
for a period of one (1) year after its purchase new from an authorized
dealer. Our obligation under this warranty is limited to repairing
or replacing any product or component which we are satisfied does
not conform with the foregoing warranty and which is returned to
our factory, freight paid, or serviced by one of our authorized
contractors. The forgoing warranty is exclusive and in lieu of all
other warranties, whether expressed or implied. Such warranty
shall not apply to any product or component (A) repaired or altered
by anyone other than USL, Inc. or an authorized service contractor;
(B) tampered with or altered in any way or subjected to misuse,
negligence or accident or (C) which has been improperly connected
installed or adjusted other than in accordance with USL, Inc.’s
instruction.
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CM Series INSTRUCTION MANUAL
Ultra
Stereo Labs, Inc.
Table of Contents
Introduction .........................................................3
Front Panel Description........................................5
Rear Panel Description.........................................5
Installation............................................................7
HD-15 Wiring Diagram........................................8
Terminal Wiring Diagram.....................................9
Monitor & Bargraph Levels.................................10
Crossover Setup...................................................11
Various Speaker Requirements............................13
Specifications......................................................15
Please record the following information for your records:
Model: ___________________ Serial Number: ___________
Date of Purchase: ________________
Purchased from: ____________________________________
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CM Series INSTRUCTION MANUAL
Ultra
Stereo Labs, Inc.
Introduction
Please read this entire manual before commencing your
installation.
The Ultra Stereo CM Series Projection Booth Monitor has been
designed for high performance, ease of use, and years of trouble free
service. Installation and setup of the monitors has been
considerably simplified. No special tools are required. The built in
VU meter and test jack give the technician immediate information
about the status of the processor and all power amplifiers.
All controls necessary for daily operation of the processor are
easily accessible on the front panel. The components that make
up the CM Series monitors are of computer grade for reliability. All
front panel controls are individually sealed for long life. All
Ultra Stereo equipment has been “burned-in” at the factory for
an extended period in order to eliminate the possibility of
premature failure. Unpack the unit carefully. If the container has
been damaged, thoroughly inspect the equipment to make
certain that there is no hidden damage. File a claim immediately
with the carrier if any damage is found. Also advise your dealer
or the factory.
TOOLS REQUIRED
Small, standard
screwdriver
Trimpot
adjustment
tool
No. 2 Phillips
screwdriver
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Wire
Strippers
CM Series INSTRUCTION MANUAL
Ultra
Stereo Labs, Inc.
You will need to supply the following materials:
• Shielded audio cable for connecting the CM Series to the
cinema processor and power amplifier outputs.
• Four 10-32 x 1/2" screws to mount the CM Series in the audio
equipment rack.
FEATURES
The CM Series monitor has the following standard features:
• Eight-Channel Monitoring - allows you to monitor either the
processor or power amplifier outputs to left, center, right,
surround left, surround right, back surround left, back surround
right and subwoofer channels, in any combination via the switch
on the front panel (see illustration on pg. 5 - switch 5)
• Input levels from processor and power amplifier can be
adjusted independently - no huge level jumps when switching
between processor and power amplifiers.
• Bargraph display may be calibrated to the reference level
for your theatre – the projectionist can see auditorium levels
instantly.
• Designed to work with bi-amplified sound systems to
monitor the high and low frequency outputs from the left,
center and right channels.
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CM SERIES
R
2
Rs
CHANNEL SELECT
Ls
EIGHT CHANNEL MONITOR/XOVER
C
BSl
3
BSr
SW
4
1
6
10
0
VOLUME
5
9
8
7
5
PROCESSOR AMPLIFIERS
2
3
4
-40
-30
-20
-10
-7
-5
-3
-1
0
+1
+2
+3
6
VU
7
TEST
8
9
POWER
1. Channel select buttons - pressing a Channel Select Button causes the corresponding LED to illuminate
and the signal from that channel to be monitored. Any combination of eight channels can be selected.
2. Internal Digital or Analog Crossover Access Cover.
3. Crossover Bypass Switch - Switching this will cause the internal crossover to be bypassed or engaged
and the condition will be indicated by its appropriate LED.
4. Volume Control - controls the volume of the internal speaker. The volume control has no effect on
the VU Bargraph display.
5. Processor/Amplifier Selector Switch - selects either the inputs from the cinema processor or power
amplifiers for monitoring.
6. VU Bargraph - displays the level of the selected channels. The VU Bargraph may be calibrated by
the rear panel trim adjustment. The VU Bargraph operates independently of the volume control (4).
7. Test Jack - permits monitoring of the audio output of the CM-680. Inserting a mono or stereo 1/4”
phone plug here disables the internal speaker and routes the audio output to the Test Jack. Do
not connect any device here with less than 8 Ohms impedance.
8. Internal Speaker
9. Power Switch
1
L
CM Series Front Panel
CM Series INSTRUCTION MANUAL
Ultra
-5-
Stereo Labs, Inc.
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19
1. Main AC connector with fuse.
2. Amplifier outputs - connect to the power amplifier speaker outputs corresponding to Ls, Rs, Bsl, Bsr and Sw channels.
3. Amplifier outputs - connect to the power amplifier speaker outputs corresponding to Lh, Ll, Ch, Cl and Rh, Rl.
4. Amplifier level - this trimpot adjusts the level of the input lines coming from the Power Amplifiers.
5. HD-15 connector - connect to Ls/Rs amplifier.
6. HD-15 connector - connect to Bsl/Bsr amplifier.
7. Processor level - this trimpot adjusts the level of the input lines coming from the processor.
8. Crossover outputs - connect to the power amplifier inputs corresponding to Ls, Rs, Bsl and Bsr.
9. HD-15 connector - connect to Rl/Rh amplifier.
10. HD-15 connector - connect to Sw amplifier.
11. Crossover outputs - connect to the power amplifier inputs corresponding to Rl, Rh and Sw.
12. HD-15 connector - connect to Ll/Lh amplifier.
13. HD-15 connector - connect to Cl/Ch amplifier.
14. Crossover outputs - connect to the power amplifier inputs corresponding to Ll/Lh and Cl/Ch amplifier.
15. Optional input - connect these to the EX outputs of the processor
16. Bargraph level - this trimpot adjusts the sensitivity of the front panel VU Bargraph.
17. Main input - connect this to the main outputs of the processor.
18. AC Emergency power input - 12-16VAC, 0.5A
19. Channel configuration DIP switches. (See Page 11)
230V
115V
CM Series Rear Panel
CM Series INSTRUCTION MANUAL
Ultra
-6-
Stereo Labs, Inc.
CM Series INSTRUCTION MANUAL
Ultra
Stereo Labs, Inc.
Installation
Mount the CM Series
The ideal place for the CM Series Monitor is in the sound rack or
projector console between the stereo processor and power
amplifiers. DB25 and HD15 connectors are available on the back plane
to make installation quick and easy. Alternatively, terminal blocks allow
the use of stripped and tinned wire. They are pluggable for easy service
and trouble shooting.
Monitor Hookup
1. Power: Connect the unit to the AC power outlet using the standard
IEC cable provided. Any power source from 100-250VAC, 50-60 Hz
will be sufficient.
2. Monitor Inputs From Processor Outputs: Use the male-female
25 pin D cable to connect the output of the cinema processor to the
main input of the CM Series. If “EX” channels are to be used, then plug
an additional male-female 25 pin D cable from the “Optional Outputs”
at the processor to the “Optional Inputs” of the CM Series.
NOTE: you must select “EX” or
NORMAL (non “EX”) channel routing
using the DIP switches on the rear
panel of the CM Series.
3. Crossover Outputs to Power Amplifier Inputs: The CM Series
utilizes HD15 connectors that mate with several popular amplifiers.
Plug one end of the “VGA” HD15 cable into the chassis connector on
the rear of the CM Series. Plug the other end of the cable into the
appropriate amplifier. The VGA cable not only sends the CM Series
crossover signal to the amplifiers, but also sends a power amp output
signal back to the CM Series monitor. This vastly simplifies rack wiring.
USL, Inc. stocks 2’, 4’ and 6’ long VGA cables.
Terminal blocks are also provided on the back of the CM Series chassis
to allow wiring to traditional amplifiers without the HD15 interface. All
crossover outputs are balanced. Please use two conductor shielded
cable to minimize ground loops and hum. Connect each of the crossover
channel outputs to the appropriate amplifier inputs.
4. Monitor Inputs From Power Amplifier Outputs: When VGA cables
are NOT being used, the amplifier outputs must be connected to
terminal blocks 2 & 3. Unshielded wire can be used to connect the
output of the amplifiers to the appropriate monitor speaker.
Inputs on the rear panel of the CM Series: All of these inputs are
unbalanced except for the subwoofer.
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CM Series INSTRUCTION MANUAL
Ultra
Stereo Labs, Inc.
SIMPLE WIRING DIAGRAM WITH HD-15 CONNECTORS
Cinema Processor
MAIN AUDIO OUTPUTS
OPTION CARD I/O
DB-25 Cables
Note: Amplifier output terminal blocks are
NOT used when VGA cables are used
115V
230V
L Biamp
VGA Cables
C Biamp
R Biamp
Sw Amp
Ls/Rs Amp
Bsl/Bsr Amp
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CM Series INSTRUCTION MANUAL
Ultra
Stereo Labs, Inc.
TERMINAL WIRING DIAGRAM
OPTION CARD I/O
Cinema Processor
MAIN AUDIO OUTPUTS
DB-25 Cables
LeftHigh/Low
Amplifier
Input
MONITOR INPUTS FROM
CROSSOVER OUTPUTS TO POWER AMPLIFIER INPUTS
1
Ls
Lh
Rs
Ll
Ls
Ls+
COM
COM
Rs
Bsl
Ch
LsRs+
Rs-
15
Bsr
Cl
COM
COM
Sw+
Rh
Sw-
Rl
COM
COM
Bsl-
1
Bsr+
Bsl
Bsr-
Bsr
AMPLIFIER
LEVEL
R
E
Bsl+
E
15
PROCESSOR
LEVEL
Left High/Low
L Amplifier
Output
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CM Series INSTRUCTION MANUAL
Ultra
Stereo Labs, Inc.
Setting Monitor and Bargraph Levels:
Set the processor main fader and amplifier levels so the house speakers
are playing back at the normal listening level. Select some source material
like pink noise.
Set the “Processor/Amplifier” switch to “Processor”. With the monitor
volume to “7”, adjust the “Processor” trimpot for a comfortable listening
level. Set the bargraph trimpot for a reading in the middle range.
Set the “Processor/Amplifier” switch to “Amplifier”, adjust the amplifier
trimpot so the level matches the processor level.
DB-25
Connector Pinout
Main
Processor
Outputs
Pin #
Function
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
GND
L+
N/C
GND
C+
N/C
GND
R+
GND
LS RS SW GND
LN/C
N/C
CN/C
N/C
RN/C
GND
LS +
RS +
SW +
N/C
N/C
Bsl N/C
Ch +
Bsr GND
Rh +
N/C
Ls Rs Lh N/C
N/C
N/C
Bsl +
Ch N/C
Bsr +
Rh N/C
N/C
Ls +
Rs +
Lh +
Optional
Processor
Outputs
CM Series HD 15 pin outs
Typical per connector
Pin #
Name
Pin #
Name
Pin #
Name
1
Band A (1), - Signal
6
Chassis Gnd
11
Band B (2), - Signal
2
NC
7
Band A (1), + Signal
12
NC
3
Band A, Vmon
(Amp returns)
8
Band B (2), + Signal
13
Band B, Vmon
(Amp returns)
4
Band A, Imon
9
NC
14
Band B, Imon
5
NC
Signal Ground
15
NC
10
On the L,C, & R channels: The low is Band “A”, the high is Band “B”
On the Ls, Rs & Bsl Bsr: The left is Band “A”, the right is Band “B”
On the Subwoofer: Band “A” is SW1, Band “B” is SW2
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CM Series INSTRUCTION MANUAL
Ultra
Stereo Labs, Inc.
Setting DIP Switches
Processor
Channel
Configuration
JSD-80/XD-10P
CP-650
L, C, R, SW plus Ls/Rs channels
1-4 ON
1-4 ON
L, C, R, SW plus Ls/Rs, Bsl/Bsr
“EX” channels
1-4 ON, E-H ON
5-8 ON, A-D ON
L, Lc, C, Rc, R, SW plus Ls/Rs
channels
1-4 ON, E-H ON
N/A
L, Le, C, Re, R, SW plus Ls/Rs
channels
1-4 ON, E-H ON
1-4 ON, E-H ON
NOTE:
Lc & Rc are full band channels, Le/Re are low frequency channels
Settings for typical loudspeakers
Speaker
Crossover Frequency
Time Delay
JBL 4675D
JBL 4670
JBL 5671
JBL 5672
JBL 5674
500Hz
800Hz
330Hz
297Hz
297Hz
1.8ms.
0.7ms,
1.4ms
1.8ms.
1.8ms
EV TS940
EV TS992LX
EV 9040
EV Variplex
800Hz
500HZ
500Hz
330Hz
0.7ms.
1.8ms.
1.8ms
1.4ms
EAW CB2591
EAW CB259
EAW CB253
500Hz
800Hz
350
1.8ms
0.7ms
0.7ms
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CM Series INSTRUCTION MANUAL
Ultra
Stereo Labs, Inc.
Crossover Bypass Setup
This unit can be equipped with either the XTD-680D, a fully digital biamp/triamp
crossover card, the XTA-680EA, an analog crossover card or the XTB-680B,
a bypass card when no crossover functions are desired with the monitor. The
XTD-680D and the XTA-680B are discussed in detail in their own instruction
manuals.
1. Bypass Card XTB-680B: When using external crossovers, the CM Series
must be equipped with a bypass card in the crossover slot.
For external crossovers or crossovers built into amplifiers:
Turn biamp switch “ON”, triamp “OFF”.
Feed the channel “A” output of the
Ll/Lh, Cl/Ch, and Rl/Rh HD15
connectors to the appropriate amps.
BIAMP
ON
Feed the Ll, Cl and Rl terminals on
the Phoenix connectors to the
appropriate amps.
To USE CP-650 internal crossover with CM Series Monitors.
For biamp operation, turn biamp
switch to “ON”and triamp switch “OFF”.
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OFF
TRIAMP
OR
CM Series INSTRUCTION MANUAL
Ultra
Stereo Labs, Inc.
Specifications
Inputs
Processor: Eight inputs corresponding to left, center, right, surround
left, surround right, back surround left, back surround right and subwoofer.
Input impedance is 10k .
Power Amplifiers: Eleven inputs corresponding to left hi and lo, center hi
and lo, right hi and lo, surround left, surround right, back surround left, back
surround right and subwoofer. Input impedance is greater than 50K.
Controls
Front Panel: Individual push button switches for each input
channel toggle on and off so that channels may be monitored in
any combination. An LED indicator illuminates when the corresponding
channel is selected. A volume control sets the speaker output level and works
independently of the front panel VU bargraph meter. A push-button switch
with corresponding LED switches monitoring between the Processor and
Amplifier inputs. A 12-segment bargraph VU Meter indicates the input level
from -40 to +3 VU.
Rear Panel: Three trimpots adjust the processor, amplifier and
VU meter input levels.
Power Requirements
100-240VAC, 50-60Hz, 32 Watts
Construction
The CM Series Monitor is constructed of steel to minimize hum
pickup and noise radiation. The overall size of the unit is 3.5"
x 19" x 9.625". The CM Series is designed to mount in a standard rack
frame or cabinet.
CM-680
Weight: 10 lbs. 2 oz. (4.63 kg)
Shipping weight: 16 lbs. (7.26kg)
Shipping Size: 22” x 22” x 6” (558.8 x 558.8 x 152.4 mm)
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