Rane AVA 22d User manual

Manual-1
OPERATORS MANUAL AVA 22d
AUDIO VIDEO ALIGNMENT DELAY
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 impor-
tant things you should know about the AVA 22d. So please keep
reading. ese few points are summarized in this Cliff Note
version of the manual.
e first time you power the AVA 22d it is in BYPASS, and
functions like an expensive wire. is is useful for initial trouble-
shooting 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 cali-
brated, 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: is product contains no wear parts.
STORING DELAY—Press the STORE button (the
STORE LED turns off ). is stores the current Delay values
into each channel’s current Memory (A or B). e current
Memory is indicated by the lit MEMORY LED for each chan-
nel. Both channel’s current Delay values are stored with each
press of the STORE button. e 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. is 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.
CH 2
COPIES
CH 1
EDIT SECAM
-10 dBV-10 dBV
EDIT SECAM
RECALL
STORE
MEMORY
LINK
BYPASS
A B
FIELDS
PAL
NTSC
CHANNEL 1
MODE
FRAMES
AVA 22d
AUDIO / VIDEO
ALIGNMENT
DELAY
1 2
SIGNAL CLIP
dBu
SIGNAL
SENSITIVITY SENSITIVITY
CLIP
dBu
0 -16
+4 -20
-4 -12
-160
+4 -20
-4 -12
-8 -8
RECALL
MEMORY
BYPASS
A B
FIELDS
PAL
NTSC
CHANNEL 2
MODE
FRAMES
6.5 6.5

Manual-2
FRONT PANEL DESCRIPTION
1 SIGNAL indicators: ese green LEDs illuminate approximately 42 dB before actual clipping.
2 SENSITIVITY controls: ese rotary controls vary incoming signal levels to the A to D converter. e 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: ese red LED indicators illuminate 4 dB before clipping at the A to D converter input.
4 STORE indicator: is flashing LED indicator alerts the user that the current configuration of the AVA 22d is different from the
stored configuration. e STORE LED is off when the current configuration matches the stored configuration.
5 STORE button: is pushbutton stores both channels’ current Delay configurations into the given channels’ current Memory (A
or B). e current Memory for each channel is indicated by the lit MEMORY LED for that channel.
6 LINK indicator: is green LED lights when the unit is in LINK mode. LINK mode allows stereo operation.
7 LINK button: is pushbutton toggles between LINK mode (stereo operation) and DUAL MONO operation. (See Operating
Instructions.)
8 BYPASS buttons and indicator: ese 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: ese LEDs indicate the most recently recalled Memory, A or B, for the given channel. ey also indicate
the Memory that is written to when the STORE button is pressed. e 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: ese 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: ese 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.
CH 2
COPIES
CH 1
EDIT SECAM
-10 dBV-10 dBV
EDIT SECAM
RECALL
STORE
MEMORY
LINK
BYPASS
A B
FIELDS
PAL
NTSC
CHANNEL 1
MODE
FRAMES
AVA 22d
AUDIO / VIDEO
ALIGNMENT
DELAY
1 2
SIGNAL CLIP
dBu
SIGNAL
SENSITIVITY SENSITIVITY
CLIP
dBu
0 -16
+4 -20
-4 -12
-160
+4 -20
-4 -12
-8 -8
RECALL
MEMORY
BYPASS
A B
FIELDS
PAL
NTSC
CHANNEL 2
MODE
FRAMES
6.5 6.5
2
31 2
15 37 8
4 6 9
1210 13 108 1312
11 9 11

Manual-3
REAR PANEL DESCRIPTION
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 else-
where 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. ese 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.
e 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. e 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
is 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. ese limits are designed to provide reasonable
protection against harmful interference when the equipment is
operated in a residential installation. is equipment generates,
uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harm-
ful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installa-
tion. 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
is 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 configura-
tion 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.
CHASSIS GROUND
MEM BYP GND
SEE
TABLE
N108
BALANCED WIRING:
PIN 1
PIN 3 NEGATIVE
PIN 2 POSITIVE
5 VOLT CMOS SCHMITT TRIGGER INPUTS, SOURCES 0.5 mA
HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST
ACCEPT ANY INTERFERENCE THAT MAY CAUSE
RULES. OPERATION IS SUBJECT TO THE FOLLOWING
TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC
(OPEN/CLOSE)(OPEN/CLOSE)
CH2 A/B
ACTIVE/BYPASS
INDIVIDUAL CHANNEL
OPTION JUMPER:
CH1 A/B
STANDARD:
BOTH CHANNELS MEMA/MEMB
UNDESIRED OPERATION.
BYP TERMINAL
REMOTE RECALL+BYPASS TABLE
MEM TERMINAL
RANE CORP.
MADE IN U.S.A.
AVA 22d
CLASS 2 EQUIPMENT CH 1 OUTCH 2 OUT CH 2 IN CH 1 IN
REMOTE RECALL+BYPASS CH 1 OUTCH 2 OUT CH 2 IN CH 1 IN
650mA
POWER
235 4 1

Manual-4
600 Ω USER INFORMATION
e 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. is 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. erefore, 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.
AVA 22d CONNECTION
When connecting the AVA 22d to other components in
your system for the first time, leave the power supply for last. is
gives you a chance to make mistakes and correct them before
any damage is done to your fragile speakers, headphones, ears,
or brains. e 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
e AVA 22d’s Inputs are electronically balanced. Use only
balanced wiring. Pin 2 is “hot” per AES standards.
OUTPUTS
e 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 Instruc-
tions for more details or an option.

Manual-5
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 revi-
sion level of the software is displayed.
THE BASICS
e 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. e current Delay values can be
stored in one of these two Memories.
SENSITIVITY SETUP
e first step is to apply signal and adjust the SENSITIV-
ITY 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. at’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. (e Delay values are linked.)
BYPASS, RECALL and broadcast MODE are also linked to-
gether 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. is may cause a Memory Recall
to occur in channel 2. is 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. e STORE LED turns off. is
Stores the current Delay values into each channel’s current Mem-
ory (A or B). e current Memory for each channel is indicated
by the lit MEMORY LED for that channel. Both channels’ cur-
rent 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 al-
ternately 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
e 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. ese 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.
e other terminal (defaulted as Stereo Memory Recall) becomes
a channel 1 Memory Recall terminal. is is convenient for
mono video houses, allowing one equipment room to use chan-
nel 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. e default setting of these jump-
ers 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 SENSITIV-
ITY knobs can be removed and the unit secured by replacing the
knobs with the provided hole plugs.

Manual-6
©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL [phone] FAX [phone] WEB www.rane.com
103585
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.