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アンプ Majorcom: PX-4120のPDF 操作マニュアルをオンラインで閲覧またはダウンロードできます。Majorcom: PX-4120 14 ページ。 4 zone pa mixer amplifier

OPERATION

For the four output terminals, please only use the COM and one of the others. When using 70V and

100V, the speaker must be with transformers. Moreover, and the total power of the speakers should

be less than the rated output power.

Mute Priority Description: MIC1 highest priority telephone remote MIC. Telephone and MIC1

priority can be reset via the rear panel short circuit terminals. Normally, MIC1 is with the highest priority.

Fault phenomenon

There is no sound output

when the line connection is good

Normal startup, the alarm triggered

In the normal use of all of a sudden

no sound output

The cause of the problem

1.No electricity or plug contact undesirable

2.The fuse was burn out

3.The volume is not open

4.No input signal

1. Load short circuit or damaged

2. Power supply voltage is not stable, too high or

too low

3. Overload

1. Temperature is too high, the machine in

temperature protection

2. Loose cable connection