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Manual-6

OPERATING INSTRUCTIONS

Once you've properly connected the AVA 22 to the

system, turn on the power. When the AVA 22 is first pow-
ered, the revision level of the software is displayed.

THE BASICS

 The AVA 22 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 SENSITIV-

ITY controls. If you know the nominal level, adjust the
control indicator to that level. Otherwise, set the SENSITIV-
ITY 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! To avoid audible
anomalies, the AVA 22 bypasses the audio signal any time
the Delay value is changed.

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 mode, 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 mode,
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 J11 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 J102 and J302 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. The third hole plug is
for use with the rear-mounted LOCKOUT switch.

©Rane Corporation  10802 47th Ave. W.,  Mukilteo WA 98275-5098  TEL (425)355-6000  FAX (425)347-7757  WEB http://www.rane.com

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Summary of Contents for AVA 22

Page 1: ...on or turn off LINK mode for dual mono operation Adjust the up down buttons until the LED display shows the desired Delay 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 t...

Page 2: ...K button This pushbutton toggles between LINK mode stereo operation and DUAL MONO operation See Operat ing Instructions 햹 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 햺 MEMORY indicator These LEDs indicate the most recently recalled M...

Page 3: ...s provided for chassis ground Since the AVA 22 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 IMPORTANT NOTES FCC VDE NOTICE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules and similar requirements found in European sp...

Page 4: ...r level changes 5 Better reliability resulting from less heat generation due to less power drawn from the output stage 6 In the event that a 600 ohm load termination is used the delivered voltage will only drop by about 1 dB 20 log R1 R1 RS 7 Greater signal voltage swing as 6 dB of signal is not lost in the 600 ohm source impedance 8 Smaller currents reduce inductive coupling and crosstalk between...

Page 5: ... 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 9 300 3 9 5 316 98 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 22 ...

Page 6: ...toring 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 b...

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