Troubleshooting Chart - Sharp QT-MP3W Operation Manual

Troubleshooting chart

Many potential problems can be resolved by the owner without call-
ing a service technician.
If something is wrong with this product, check the following before
calling your authorised SHARP dealer or service centre.
General
Symptom
When a button is pressed,
the unit does not respond.
No sound is heard.
CD player
Symptom
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.
Tuner
Symptom
The radio makes unusual
noises continuously.
Possible cause
Set the unit to the power stand-
by mode and then turn it back on.
Is the volume level set to "0"?
Are the headphones connected?
Possible cause
Is the disc loaded upside down?
Does the disc satisfy 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?
Possible cause
Is the unit placed near the TV or
computer?
Is the FM aerial placed properly?
Move the aerial away from the
AC power lead if it's located near-
by.
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.
Condensation
Sudden temperature changes, storage or operation in an extremely
humid environment may cause condensation inside the cabinet (CD
pickup, etc.).
Condensation can cause the unit to malfunction. If this happens,
leave the power on with no disc in the unit until normal playback is
possible (about 1 hour). Wipe off any condensation on the transmitter
with a soft cloth before operating the unit.
If trouble occurs
When this product is subjected to strong external interference
(mechanical shock, excessive static electricity, abnormal supply
voltage due to lightning, etc.) or if it is operated incorrectly, it may
malfunction.
If such a problem occurs, do the following:
1 Set the unit to the stand-by mode and turn the power on again.
2 If the unit is not restored in the previous operation, unplug and
plug in the unit, and then turn the power on.
Possible cause
Is the erase-prevention tab re-
moved?
Is it a normal tape? (You cannot
record on a metal or CrO tape.)
Is there any slack?
Is the tape stretched?
Are the capstan, pinch roller, or
head dirty?
If a power failure occurs during
playback, the heads remain en-
gaged with the tape. Do not open
the compartment with great
force.
QT-MP3W
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