Muting Function; Installation - Toa A-230 CE-GB Operating Instructions Manual

Pa amplifier
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7. MUTING FUNCTION

Shorting DIN plugs pin-4 and pin-5 of rear-mounted Mic 1 input allows Mic 1 input to reduce the volume of Mic
2, Aux 1, and Aux 2 inputs by 0 to 30 dB. The attenuation level is preset for –30 dB at the factory.
We recommend using TOA's microphone PM-222D or PM-660D to bring the best results.
5-pin DIN Connector
E
1
2
4
5
Mute Switch
Remark: About Mute function.
• When a Mute switch connected across pins 4 and 5 is closed, the Mute circuit works promptly.
• It returns to the previous state after 3 seconds when the Mute switch is opened.

8. INSTALLATION

Keep the unit over 10 cm away from objects that may obstruct air flow to prevent the unit's internal
temperature rise.
over 10 cm
over 10 cm
3
Hot
Cold
Ground (Shield)
MUTE ADJ
0
–30dB
over 10 cm
9

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