Epcom PROAUDIO SF-4240UC Panduan Pengoperasian - Halaman 15

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7. TROUBLESHOOTING

Failure phenomena

1. Power switch is not opened

2. All lines are connected, but there is

no sound.

3. The sound suddenly disappears in

normal status.

4. Low sound

5. Sound is distorted

Failure cause

1 . Power line is cut off

2. The protection function of the equipment is

not activated

1. The power switch is not opened or the power

plug is bad contacted.

2. The fuse is burnt

3. The volume knob is not opened or turned down

to a extra low level

4. There is no audio signal input

5. There is short-circuit in the speaker line.

1. The equipment is in very high temperature to

make it into protection status.

2. The connection wire is bad contact.

The equipment is set to be low impedance

connection, but the speakers connected is

with high impedance.

The input level of Mic or external equipment

is too high