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CD-DVD500H
ENGLISH
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References
– Troubleshooting chart –
Troubleshooting chart
Many potential “problems” can be resolved by the owner without calling a service tech-
nician. If something is wrong with this product, check the following before calling your
authorised SHARP dealer or service centre.
■
General
Symptom
● The clock is not accurate.
●
When a button is pressed, the unit
does not respond.
● No sound is heard.
● The balance between the left and
right channels is bad.
● Hum or excessive noise.
● No sound is heard, or the sound
is too low, from the centre or sur-
round speakers.
● The timer indicator is flashing.
Possible cause
● Did a power failure occur?
Reset the clock. (Refer to page 16.)
● Set this unit to the power stand-by mode
and then turn it back on.
● If the unit still malfunctions, reset it.
(Refer to page 72.)
● Is the volume level set to “0”?
● Are the headphones connected?
● Are the speaker wires disconnected?
● Are the front and surround speakers
connected to the wrong channels?
● If an external unit is connected, are the left
and right channels connected improperly?
● Is the speaker lead plugged in incorrectly?
● Does the speaker lead run past other
electronic equipment?
● Are the plugs or terminals dirty?
● Is the “speaker size” item set to “NO” in
the “setup” operation (page 43)?
● Is the volume too low?
● Is the speaker wire shorted?
● Was the unit used at high volume for
many hours?
■
Remote control
Symptom
● The remote control does not op-
erate.
Possible cause
● Is the AC power lead of the unit un-
plugged?
● Is the battery polarity wrong?
● Are the batteries dead?
● Is the distance or angle incorrect?
● Does the remote control sensor receive
strong light?
■
Tuner
Symptom
● Radio makes constant unusual
noise or static.
Possible cause
● Is the unit placed near the TV or com-
puter?
● Is the FM aerial or AM loop aerial placed
improperly?
Move the AC power lead away from the
aerial if located near.
■
Cassette deck
Symptom
● Cannot record.
● Cannot record tracks with proper
sound quality.
● Cannot erase completely.
● Sound skipping.
● Cannot hear treble.
● Sound fluctuation.
● Cannot remove the tape.
Possible cause
● Is the erase-protection tab removed?
● Is it a normal tape?
(You cannot record on a metal or CrO2
tape.)
● Is there any slack?
● Is the tape stretched?
● Are the capstans, pinch rollers, or heads
dirty?
● If a power failure occurs during playback,
the heads remain engaged with the tape.
Do not open the compartment forcibly.
Wait until electricity resumes.
■
DVD/CD player
Symptom
● No image from the DVD video
appears on the screen of a con-
nected device.
● Playback does not start.
● Playback stops in the middle or is
not performed properly.
● Playback sounds are skipped, or
stopped in the middle of a track.
Possible cause
● Make sure the channel of the connected
TV is set to VIDEO or AV.
● Make sure video cables are connected
correctly.
● Is the disc loaded upside down?
● Does the disc dissatisfy the standards?
● Is the disc distorted or scratched?
● Is the unit located near excessive vibrations?
● Is the disc very dirty?
● Has condensation formed inside the unit?
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