36
System Implementation
Operation
1 Press “GAIN” toggle down momentarily – lowers gain by 10dB from the previous
setting (assuming the previous gain setting was already > “UNITY”) on the appropriate
channel.
2 Press “GAIN” toggle down and hold – after the initial 10dB step down when the toggle
is actuated, there is a pause of 750mSec and then the unit will automatically continue
to increment the gain downward (again assuming the previous gain was set to a higher
value) at a rate of 250mSec/step until it settles at “UNITY”. At any point the toggle can
be released and the unit will remain at the gain setting indicated.
3 Press “GAIN” toggle up momentarily – raises gain by 10dB from the previous setting
(assuming the previous gain setting was already lower) on the appropriate channel.
4 Press “GAIN” toggle up and hold – after the initial 10dB step up when the toggle is
actuated, there is a pause of 750mSec and then the unit will automatically continue to
increment the gain upward (again assuming the initial gain was set to a lower value) at
a rate of 250mSec/step until it settles at “50dB”. At any point the toggle can be released
and the unit will remain at the gain setting indicated.
Note: As the gain is either raised or lowered, there is no “wrap around” to the
adjustment. If the gain steps are increased, the display will NOT return to “UNITY” after
the “50dB” setting is reached. Likewise, if the gain steps are decreased, the display will
NOT return to “50dB” after the “UNITY” setting is reached. This action provides a better
“feel” to the operator when making adjustments and eliminates the possibility of
excessive audio levels when cycling through gains as could be the case when holding
the “GAIN” toggle down in an effort to lower the audio level.
Extended Switch Functions (All-Reset to “UNITY”, All-Increment Up, All-Increment Down)
1 Press and hold CH1 (CH9) “GAIN” toggle down, Press CH8 (CH16) “GAIN” toggle down
momentarily – Gain on all 8 channels is simultaneously reset to “UNITY”.
2 Press and hold CH1 (CH9) “PH/PWR” toggle left, Press CH8 (CH16) “GAIN” toggle up
momentarily – Gain on all 8 channels is simultaneously incremented to the next higher
gain setting. Holding the CH8 (CH16) “GAIN” toggle up, while still holding the CH1
(CH9) “PH/PWR” toggle left, will automatically increment the gain settings on all 8
channels simultaneously as described above in the Single Switch Functions (Any
Channel) section.
3 Press and hold CH1 (CH9) “PH/PWR” toggle left, Press CH8 (CH16) “GAIN” toggle down
momentarily – Gain on all 8 channels is simultaneously decremented to the next lower
gain setting. Holding the CH8 (CH16) “GAIN” toggle down, while still holding the CH1
(CH9) “PH/PWR” toggle left, will automatically decrement the gain settings on all 8
channels simultaneously as described above in the Single Switch Functions (Any
Channel) section.
Extra Notes:
1 All Phantom Power and Gain setting changes are immediate and seamless upon
actuation of the switches. There is no delay or hesitation for the required result when
the operator makes a change to one of these settings.
2 All settings are retained in non-volatile memory when the Expansion Panel is powered
down, so setup time is minimal if power is lost or the system is moved to an alternate
location.
