Pioneer S-11, Manual

Page: 223 / 322

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13
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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 Cause Remedy
No power is being supplied
(Indicator does not light up
when POWER switch is
turned on) . • Power supply plug is not
correctly inserted.
• Insert plug securely.
No sound
(Indicator is lit blue) . • Connection of accessory
RCA plug cord is wrong or
disconnected.
• Volume knob is set to MIN.
• Input level is too low.
• Check again and connect
correctly.
• Turn clockwise slowly.
• Raise the receiver’s output
level.
Sound is distorted. • Level is too high.
• Input level is too high.
• Turn the volume knob
counter-clockwise to lower
the level.
• Turn the
receiver
’s output
level (volume, bass control,
bass boost) counter-
clockwise to lower the level.
Howling noise occurs. • No power supplied to the
receiver
.
• Subwoofer level is set too
high.
• Connect an receiver and
supply power.
• Place the subwoofer a good
distance from speakers.
Turn the volume knob
counter-clockwise to lower
the volume.
Much noise when listening
to AM or FM broadcasts. • The AM loop antenna or
the FM indoor antenna is
close to this unit.
• Increase the distance
between the AM or FM
antenna (for indoor use)
and this unit.
01_S-21W&S-11.book 13 ページ ２０１０年３月１６日 火曜日 午前１１時２８分