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.

 

INPUT SELECT

 

 

 

 

 

1

 

 

 

 

 

2

 

 

 

 

 

3

 

 

 

 

 

4

 

 

 

 

 

5

INPUT VOLUME

OUTPUT VOLUME

PARAMETER

POWER

 

 

ON/OFF

ON/OFF

MEMORY

UTILITY

 

6

 

 

 

 

 

7

 

OUTPUT SEL

ENTER

ESC/BACK

 

 

 

 

 

TOA 9000 SERIES AMPLIFIER A-9120DH

8

 

 

 

 

Input channel selection keys

 

 

 

 

Power switch

 

 

 

 

 

Input volume control

 

 

 

 

Parameter setting knob

Input channel ON/OFF key

 

 

 

Enter key

Output channel ON/OFF key

 

 

Memory key

Output channel selection key

 

 

Output volume control

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.

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