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
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 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. 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 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. 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 Mem-
ory (A or B). The 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
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 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. The 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.
