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TROUBLESHOOTING
Symptom
POWER LED does not light
No sound from speaker
PROTECT LED lights
Discontinuous of broadcast
IF TROUBLE OCCURS
Potential Cause / Place
to Inspect
1. Check the connection
between DC power supplier
and the power amplifier.
2. Check the power switch of
the amplifier.
1. Check the connection of
AUX IN and EXT IN.
2. Check the volume control
position.
3. Check the connection
between speaker line and
the SP out terminal.
1. Check if the speaker line and
SP out connection is shorted
1. Check the connection of
AUX IN and EXT IN.
2. Protection circuit activated due
to amplifier overheat.
Remedy
1. Connect DC power supplier with
the power amplifier.
2. Switch on the amplifier.
1. Connect DC power supplier with
the power amplifier.
2. Switch on the amplifier.
1. Remove the shorted connection
between the speaker and SP
output terminal.
1. Connect the AUX In and EXT IN
with input device.
2. Check if the surrounding
temperature is above 40°C.
3. Check if the speaker connection
exceeded 12W.
10
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