Adjusting And Checking Input Gain (Optional Feature); Locking And Unlocking The Control Panel - AMX Precis Instruction Manual

ADJUSTING AND CHECKING
INPUT GAIN (OPTIONAL
FEATURE)
If your system has the Volume Control option, it
also supports the Input Gain Control option.
Caution: We recommend that input gain
adjustments be made only by a qualified dealer.
The purpose of Precis "Input Gain Control" is to
allow source (input) signals of various
amplitudes to be equalized before they are routed
and the volume is adjusted. Equalizing source
levels provides a consistent reference for volume
adjustments and eliminates level jumps when
routing a new source to a destination.
Typical uses for input gain (the nominal level of
the signal from the source device) include
switching consumer and professional grade
audio equipment (whose levels can vary
noticeably) in the same matrix switcher and for
equalizing amplitudes between balanced and
unbalanced source inputs.
To use the "Input Gain Control" feature to
equalize input levels:
1. Route a source (input) to the first destination
(output).
2. Adjust the input gain for the source to a
specific dB level.
3. Repeat for all sources that will be routed to
the same destination.
You can adjust input gain and check its status by
modifying the instructions in the previous
section, "Adjusting and Checking Volume," as
follows:

ADJUSTING AND CHECKING INPUT GAIN (OPTIONAL FEATURE)

ä
Control Panel – select a Source (input) key
instead of a Destination (output) key.
ä
BCS Commands – substitute an "
for the "
The range of input gain adjustment is from +10
to –10 decibels.
LOCKING AND UNLOCKING
THE CONTROL PANEL
Disable Control Panel operations to prevent
accidental switches and macros by locking the
Control Panel. When the Control Panel is locked,
the Lock key is illuminated, and you are unable
to use the Control Panel for any operations other
than unlocking the panel. While the Control
Panel is locked, BCS commands still work.
Use the password that came with your system
(the default password from the factory is the first
five Level keys, going left to right) to lock and
unlock the Control Panel; you cannot lock or
unlock the panel using BCS commands. To
change your password, see page 16.
After you press the Lock key, you have 10
seconds to enter the password before the Control
Panel reverts to its previous mode (locked or
Switch mode). If you enter the wrong password,
press the Lock key again and enter the correct
password.
To lock/unlock the Control Panel:
1. Press the Lock key to put the Control Panel
in Lock mode.
The Lock key flashes (for only 10 seconds),
and all other lights on the Control Panel turn
off. You must enter the password while the
Lock key is flashing.
Precis Instruction Manual
I " (input)
" (output) in the command line.
O
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