TOA Electronics A-9120DH - Manual (Page 28)

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9. OPERATION
To operate the unit in the matrix mode, make necessary settings in advance such as the audio input/output
settings and event settings (including broadcast pattern and BGM broadcast group) according to the set
operation method.
9.1. Normal Use
In the matrix mode, the unit need not be manually operated in normal conditions since the set broadcast
patterns can be activated by means of remote control. However, it is also possible to adjust the volume,
activate the broadcast patterns directly, or turn on or off input/output channels using the front panel-mounted
keys and knobs.
This section describes operations that can be performed in normal use when the key lock function is disabled
and the unit is set to the matrix mode.
9.1.1. Keys and knobs
[Front]
This figure represents the A-9120DH.
ON/OFF
OUTPUT SEL
ON/OFF
OUTPUT VOLUME INPUT VOLUME POWER
UTILITY
ESC/BACK
MEMORY
ENTER
PARAMETER
8
7
6
5
4
3
2
1
INPUT SELECT
TOA 9000 SERIES AMPLIFIER A-9120DH
Input channel selection keys
Input channel ON/OFF key
Output channel ON/OFF key
Input volume control
Output channel selection key Output volume control
Parameter setting knob
Power switch
Enter key
Memory key
9.1.2. Power ON/OFF
Power is turned on when the power switch is pressed.
To turn off the power, hold down the power switch for 0.5 second or more.
Note
The power switch is a soft-switch, so the internal microcomputer is still operating even when the power switch
is set to OFF.