Troubleshooting Chart - Sharp CD-MPX880H Operation Manual

Troubleshooting chart

Many potential problems can be resolved by the owner without
calling a service technician.
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 set to the
correct time.
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.
Possible cause
Did a power failure occur? Reset
the clock. (Refer to page 13.)
Set the unit to the power stand-
by mode and then turn it back on.
If the unit still malfunctions, reset
it. (Refer to page 42.)
Is the volume level set to "0"?
Are the headphones connected?
Are the speaker wires
disconnected?
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?
Cassette deck
Symptom
Cannot record. Is the erase-prevention tab
removed?
Cannot record tracks with Is it a normal tape? (You cannot
proper sound quality. record on a metal or CrO tape.)
Cannot erase completely.
Sound skipping. Is there slack in the tape?
Cannot hear treble. Is the tape stretched?
Sound fluctuation. Are the capstans, pinch rollers,
or heads dirty?
Cannot remove the tape. If a power failure occurs during
playback, the heads remain
engaged with the tape. Do not
open the compartment with great
force.
Remote control
Symptom
The remote control does Is the AC power lead of the unit
not operate. plugged in?
Is the battery polarity correct?
Are the batteries dead?
Is the distance or angle
incorrect?
Does the remote control sensor
receive strong light?
Tuner
Symptom
The radio makes unusual Is the unit placed near the TV or
noises continuously. computer?
Is the FM aerial or AM loop aerial
placed properly? Move the aerial
away from the AC power lead if
it's located nearby.
CD-MPX880H
Possible cause
Possible cause
Possible cause
41