Troubleshooting - Pioneer S-21W Mode D'emploi

Troubleshooting

Incorrect operations are often mistaken for trouble and malfunctions. If you think that there is
something wrong with this component, check the points below. Sometimes the trouble may lie
in another component. Investigate the other components and electrical appliances being used.
If the trouble cannot be rectified even after exercising the checks listed below, ask your nearest
PIONEER authorized service center or your dealer to carry out repair work.
S-21W
Symptom
No power is being supplied
(Indicator does not light up
when POWER switch is
turned on) .
No sound
(Indicator is lit blue) .
Sound is distorted.
Howling noise occurs.
Much noise when listening
to AM or FM broadcasts.
Cause
• Power supply plug is not
correctly inserted.
• Connection of accessory
RCA plug cord is wrong or
disconnected.
• Volume knob is set to MIN.
• Input level is too low.
• Level is too high.
• Input level is too high.
• No power supplied to the
.
receiver
• Subwoofer level is set too
high.
• The AM loop antenna or
the FM indoor antenna is
close to this unit.
Remedy
• Insert plug securely.
• Check again and connect
correctly.
• Turn clockwise slowly.
• Raise the receiver's output
level.
• Turn the volume knob
counter-clockwise to lower
the level.
• Turn the 's output
receiver
level (volume, bass control,
bass boost) counter-
clockwise to lower the level.
• Connect an receiver
supply power.
• Place the subwoofer a good
distance from speakers.
Turn the volume knob
counter-clockwise to lower
the volume.
• Increase the distance
between the AM or FM
antenna (for indoor use)
and this unit.
and
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En