OPERATORS MANUAL AVA 22d AUDIO VIDEO ALIGNMENT DELAY

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OPERATORS MANUAL AVA 22d AUDIO VIDEO ALIGNMENT DELAY | Manualzz
OPERATORS MANUAL
AVA 22d
AUDIO VIDEO ALIGNMENT DELAY
1
SENSITIVITY
-10 dBV
-8
-12
-4
0
-16
+4
SIGNAL
-20
dBu
2
SENSITIVITY
-10 dBV
-8
-12
0
LINK
MEMORY
B
BYPASS A
MODE
SIGNAL
-20
dBu
CLIP
CH 2
COPIES
CH 1
RECALL
EDIT
MEMORY
B
BYPASS A
CHANNEL 1
NTSC
-16
+4
CLIP
STORE
-4
PAL
SECAM
6.5
FRAMES
MODE
CHANNEL 2
NTSC
FIELDS
RECALL
EDIT
PAL
SECAM
6.5
AVA 22d
FIELDS
AUDIO / VIDEO
ALIGNMENT
DELAY
FRAMES
QUICK START
Look around to make sure no one catches you reading this.
You’re aware this is the manual aren’t you? Wow! Most people
only get about this far in a manual, but there are a few important things you should know about the AVA 22d. So please keep
reading. These few points are summarized in this Cliff Note
version of the manual.
The first time you power the AVA 22d it is in BYPASS, and
functions like an expensive wire. This is useful for initial troubleshooting and allows for convenient verification of signal flow.
Punching the BYPASS buttons and extinguishing their LEDs
will activate the Delays.
ADJUSTING SENSITIVITY—First apply a signal with
nominal input level and adjust the SENSITIVITY controls so
the red CLIP LEDs just light, then back off so the LEDs do not
turn on, even with high signal peaks.
SETTING DELAY—Now that the input signal is calibrated, select LINK mode (LINK LED on) for stereo operation,
or turn off LINK mode for dual mono operation. Adjust the
up/down buttons until the LED display shows the desired Delay.
WEAR PARTS: This product contains no wear parts.
STORING DELAY—Press the STORE button (the
STORE LED turns off ). This stores the current Delay values
into each channel’s current Memory (A or B). The current
Memory is indicated by the lit MEMORY LED for each channel. Both channel’s current Delay values are stored with each
press of the STORE button. The broadcast Mode (NTSC or
PAL/SECAM) is also stored with the Delay value.
RECALLING DELAY—To recall a stored Memory, press
RECALL. Each press of this button alternately recalls stored
Memories (A then B then A…).
Never connect anything except an approved Rane power
supply to the thing that looks like a telephone jack on the
rear of the AVA 22d. This is an AC input and requires special
attention if you do not have a power supply exactly like the one
originally packed with your unit. See the full explanation of the
power supply requirements elsewhere in this manual.
600 Ω users see page Manual-4.
Manual-
FRONT PANEL DESCRIPTION
1
1
2
4
3
SENSITIVITY
-10 dBV
-8
-12
2
-4
0
SIGNAL
0
-20
dBu
LINK
MEMORY
B
BYPASS A
MODE
-20
dBu
SIGNAL
1
CH 2
COPIES
CH 1
CLIP
2
3
5
RECALL
EDIT
7 8 10
9 11
MEMORY
B
BYPASS A
CHANNEL 1
NTSC
-16
+4
CLIP
STORE
9 11
-4
-16
+4
SENSITIVITY
-10 dBV
-8
-12
6
PAL
SECAM
6.5
CHANNEL 2
NTSC
FIELDS
RECALL
EDIT
FRAMES
12
MODE
13
PAL
SECAM
8 10
6.5
AVA 22d
FIELDS
AUDIO / VIDEO
ALIGNMENT
DELAY
FRAMES
12
13
1 SIGNAL indicators: These green LEDs illuminate approximately 42 dB before actual clipping.
2 SENSITIVITY controls: These rotary controls vary incoming signal levels to the A to D converter. The output signal is also
adjusted so the AVA 22d always passes signal with unity gain into 600 Ω loads. (See operating instructions.)
3 CLIP indicators: These red LED indicators illuminate 4 dB before clipping at the A to D converter input.
4 STORE indicator: This flashing LED indicator alerts the user that the current configuration of the AVA 22d is different from the
stored configuration. The STORE LED is off when the current configuration matches the stored configuration.
5 STORE button: This pushbutton stores both channels’ current Delay configurations into the given channels’ current Memory (A
or B). The current Memory for each channel is indicated by the lit MEMORY LED for that channel.
6 LINK indicator: This green LED lights when the unit is in LINK mode. LINK mode allows stereo operation.
7 LINK button: This pushbutton toggles between LINK mode (stereo operation) and DUAL MONO operation. (See Operating
Instructions.)
8 BYPASS buttons and indicator: These momentary push buttons toggle each channel’s hard-wired Bypass. If an LED is on, the
given channel is Bypassed and functions like a wire. If it is off the given channel is active.
9 MEMORY indicator: These LEDs indicate the most recently recalled Memory, A or B, for the given channel. They also indicate
the Memory that is written to when the STORE button is pressed. The MEMORY LED flashes when the current Delay value for
that channel is different than the stored value for that channel.
0 RECALL buttons: Pressing one of these pushbuttons alternately Recalls stored Memories A and B for the given channel.
q MODE buttons and indicator: These buttons toggle the broadcast mode for the given channel, NTSC or PAL/SECAM. Each
channel contains LEDs indicating the current broadcast Mode.
w FRAMES displays: These 2-digit displays indicate the current Delay value for the given channel. On power up this display also
shows the currently installed software revision level.
e UP/DOWN buttons: Pressing these buttons increases/decreases the amount of Delay in the given channel.
Manual-
REAR PANEL DESCRIPTION
REMOTE RECALL & BYPASS
650mA
CLASS 2 EQUIPMENT
5 4
CH 2 OUT
CH 2 IN
CH 1 OUT
CH 1 IN
See Table
POWER
BALANCED WIRING:
PIN 2 POSITIVE
PIN 3 NEGATIVE
PIN 1 CHASSIS GND
REMOTE RECALL & BYPASS TABLE
MEM TERMINAL BYP TERMINAL
(OPEN/CLOSE) (OPEN/CLOSE)
STANDARD:
BOTH CHANNELS
MEMA/MEMB
OPTION JUMPER:
INDIVIDUAL CHANNEL CH1 A/B
MEM BYP
3
GND
CH 2 OUT
2
CH 2 IN
CH 1 OUT
CH 1 IN
ACTIVE/BYPASS
CH2 A/B
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC
RULES. OPERATION IS SUBJECT TO THE FOLLOWING
TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE
HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST
ACCEPT ANY INTERFERENCE THAT MAY CAUSE
UNDESIRED OPERATION.
AVA 22d
MADE IN U.S.A.
RANE CORP.
ACN 001 345 482
5 VOLT CMOS SCHMITT TRIGGER INPUTS, SOURCES 0.5 mA
1
1 XLR INPUT/OUTPUTS: Nothing new here, balanced Ins and Outs. If you can tolerate unbalanced characteristics (like hum),
you can also wire the AVA 22d in an unbalanced configuration. See the RaneNote, “Sound System Interconnection” located elsewhere in this manual.
2 Front Panel Lockout switch: Enables the Front Panel Lockout mode. In this mode all front panel controls, with the exception of
the RECALL buttons, are disabled. Press a RECALL button while in Lockout to temporarily display, but not Recall, the value of
the other stored Memory for the given channel. (See Operating Instructions for optional Bypass Lockout mode.)
3 REMOTE RECALL & BYPASS terminals: Wiring external configuration switches to these terminals allows remote stereo
bypassing or stereo memory recalling of the two nonvolatile memories. These terminals use CMOS (+5 volt) logic levels and source
only 0.5 mA (max) each.
4 POWER connector: No, this is not where commissioner Gordon plugs in his Bat-phone, in fact it is not a telephone jack at all.
The AVA 22d uses an 18 volt AC center-tapped transformer only. Use only a model RS 1 or other remote AC power supply approved by
Rane. The AVA 22d is supplied with an RS 1 remote power supply. Consult the factory for replacement.
5 Chassis ground point: A #6-32 screw and toothed washer is provided for chassis ground. Since the AVA 22d does not get chassis
ground through the AC cord, this point is provided if your system does not have another earth ground such as the rack rails.
FCC NOTICE
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is
operated in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio
or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following:
1. Re-orient or relocate the receiving antenna.
2. Increase the separation between the equipment and the
receiver.
3. Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
4. Consult the dealer or an experienced radio/TV technician.
CANADIAN EMC NOTICE
This Class B digital apparatus meets all requirements of the
Canadian Interference-Causing Equipment Regulations.
Cet Appariel numerique de la classe B respecte toutes les
exigences du Reglement sur le material broilleur du Canada.
CHASSIS GROUNDING
If after hooking up your system it exhibits excessive hum or
buzzing, there is an incompatibility in the grounding configuration between units. Here are some things to try:
1. Try combinations of lifting grounds on units supplied with
ground lift switches (or links).
2. Verify all chassis are tied to a good earth ground.
3. Some units with outboard power supplies do not ground
the chassis through the line cord. Make sure these units are
solidly grounded by tying the Chassis Ground Point to known
earth ground. Use a star washer to guarantee proper contact.
Manual-
AVA 22d CONNECTION
When connecting the AVA 22d to other components in
your system for the first time, leave the power supply for last. This
gives you a chance to make mistakes and correct them before
any damage is done to your fragile speakers, headphones, ears,
or brains. The AVA 22d passes audio while it is unpowered by
virtue of its fail safe bypass relays (when the AVA 22d functions
as a wire). Turn the system volume down before plugging in the
AVA 22d’s power.
INPUTS
The AVA 22d’s Inputs are electronically balanced. Use only
balanced wiring. Pin 2 is “hot” per AES standards.
OUTPUTS
The AVA 22d’s Outputs are balanced line drivers. Pin 2 is
“hot” per AES standards.
REMOTE RECALL TERMINALS
Each channel of the AVA 22d has two nonvolatile Memories,
“A” and “B”. Connecting a switch between the GND and MEM
terminals permits remote stereo recalling of the Memories. Only
a change in the switch position is sensed. When the switch
closes, both channels’ Memory B’s are recalled. When the switch
opens, both Memory A’s are recalled. See the Operating Instructions for more details or an option.
600 Ω USER INFORMATION
The AVA 22d’s Inputs are specified for a nominal +4 dBu input, which is a voltage referenced level of 1.228 volts rms.
(0 dBu = 0.7746 Volts). At this voltage level, the AVA 22d provides 16 dB of headroom. Users who wish to operate the AVA 22d in
600 Ω systems must provide their own 600 Ω input resistor across the input terminals. This enables the AVA 22d to accept a +4 dBm
input and allows delivery of +4 dBm to a 600 Ω load. Confusion among 600 Ω users of the AVA 22d may occur if one assumes the
input and output impedances of the AVA 22d are 600 Ω – they are not. Therefore, when evaluating the AVA 22d do not assume that
+4 dBm equals +4 dBu unless you have ensured that all input and output impedances in your test setup are 600 Ω.
Advantages of Hi-Z in/Lo-Z out systems:
(from Audio System Design and Installation, by Phillip Giddings, Howard W. Sams, 1990, pp. 129-130.)
1. Less distortion in output due to smaller output current needs.
2. Lower noise pickup by interconnecting lines due to lower source impedance.
3. Greater lengths of cable may be driven for a given high frequency roll-off.
4. Many pieces of equipment can be driven from one output without the use of distribution amplifiers and with no concern for
matching or level changes.
5. Better reliability resulting from less heat generation due to less power drawn from the output stage.
6. Because of the AVA 22d’s 200 Ω output impedance, the addition of a 600 Ω load termination drops the delivered voltage by about
2.5 dB.
7. Greater signal voltage swing as 6 dB of signal is not lost in the (600 Ω) source impedance.
8. Smaller currents reduce inductive coupling and crosstalk between cables.
Manual-
OPERATING INSTRUCTIONS
Once you've properly connected the AVA 22d to the system,
turn on the power. When the AVA 22d is first powered, the revision level of the software is displayed.
THE BASICS
The AVA 22d is a two channel device. Each channel has a
current Delay value that is always active/heard. You can only
edit the current Delay values. Additionally each channel has two
nonvolatile Memories, A and B. The current Delay values can be
stored in one of these two Memories.
SENSITIVITY SETUP
The first step is to apply signal and adjust the SENSITIVITY controls. If you know the nominal level, adjust the control
indicator to that level. Otherwise, set the SENSITIVITY control
so high signal peaks just illuminate the CLIP LED, then back off
a little.
ADJUSTING CURRENT DELAY VALUE
One Channel at a time: With the LINK LED off, press the
up/down buttons for the channel you want to adjust until the
desired Delay value is reached. That’s it!
Both Channels simultaneously: With the LINK LED on,
changing either Delay value changes the other channel’s Delay
value by the same relative amount. (The Delay values are linked.)
BYPASS, RECALL and broadcast MODE are also linked together in LINK mode.
When entering LINK, channel 2’s current Bypass and
Memory settings are stored and replaced with channel 1’s current
Bypass and Memory settings. This may cause a Memory Recall
to occur in channel 2. This Recall may also include a change in
broadcast MODE if the Recalled Memory’s MODE is different.
Channel 2’s stored Delay value is not changed to match channel
1’s Delay value (channel 2’s stored delays remain unchanged).
When leaving LINK, channel 2’s Bypass and Memory settings
are restored to their dual mono settings. Again a Memory Recall
may occur, thus restoring the stored channel 2 value.
STORING DELAYS
Press the STORE button. The STORE LED turns off. This
Stores the current Delay values into each channel’s current Memory (A or B). The current Memory for each channel is indicated
by the lit MEMORY LED for that channel. Both channels’ current Delay values and broadcast Modes are stored with each press
of the STORE button.
RECALLING DELAYS
Press the RECALL button. Each press of this button alternately Recalls stored Memories (A then B then A…) for the
given channel. Pressing RECALL while editing Delay values
writes over the changes you’ve made if you have not stored them.
REMOTE RECALLS
The rear REMOTE RECALL terminals are functionally
equivalent to the front panel RECALL and BYPASS buttons
while in LINK mode. When the switch closes, both channels are
Bypassed, or, for the other switch, both Memory B’s are recalled.
Both channels are activated (or both Memory A’s are recalled) by
opening the switch. These terminals can not be locked out.
An internal jumper is provided to redefine the REMOTE
RECALL function. (See W3 in the board layout diagram.)
Moving this jumper from its default position redefines the Stereo
Bypass Remote terminal as a channel 2 Memory Recall terminal.
The other terminal (defaulted as Stereo Memory Recall) becomes
a channel 1 Memory Recall terminal. This is convenient for
mono video houses, allowing one equipment room to use channel 1 and another room to use channel 2 independently.
INTERNAL BYPASS JUMPER SETTING
Internal jumpers enable or disable the BYPASS buttons while
in Front Panel Lockout mode. The default setting of these jumpers disables the BYPASS buttons in Front Panel Lockout mode.
(See W1 and W2 in the board layout diagram.)
HOLE PLUGS
Once your system is properly configured, the SENSITIVITY knobs can be removed and the unit secured by replacing the
knobs with the provided hole plugs.
Manual-
Frame-to-Millisecond Table
AVA 22d Displayed
Frame Value
NTSC Delay Time in
Milliseconds
PAL/SECAM Delay
Time in Milliseconds
0.0
0.00
0.00
0.5
16.68
20.00
1.0
33.37
40.00
1.5
50.05
60.00
2.0
66.73
80.00
2.5
83.42
100.00
3.0.
100.10
120.00
3.5
116.78
140.00
4.0
133.47
160.00
4.5
150.15
180.00
5.0
166.83
200.00
5.5
183.52
220.00
6.0
200.20
240.00
6.5
216.88
260.00
7.0
233.57
280.00
7.5
250.25
300.00
8.0
266.93
320.00
8.5
283.62
340.00
9
300.3
360.00
9.5
316.98
380.00
Field/Frame Conversion Table
FORMAT
Number of Fields per second
1 Field Equals
Number of Frames per second
1 Frame Equals
NTSC
59.94
16.68 msec
30
33.33 msec
PAL/SECAM
50
20 msec
25
40 msec
Note: There are 2 fields in a frame.
The AVA 22d’s maximum delay time is 380.00 msec.
This provides up to 9.5 NTSC or PAL/SECAM Frames.
©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL 425-355-6000 FAX 425-347-7757 WEB www.rane.com
Manual-
103585

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