Sharp MD-E9000H Service Manual page 9

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 on time.
When a button is pressed, the unit
does not respond.
No sound is heard from the speak-
ers.
CD player
Symptom
Playback does not start. Is the disc loaded upside down?
Playback stops in the middle or is
Does the disc dissatisfy the standards?
not performed properly.
Is the disc distorted or scratched?
Playback sounds are skipped, or
Is the unit located near excessive vibra-
stopped in the middle of a track.
tion?
Is the disc very dirty?
Has condensation formed inside the unit?
MiniDisc
Symptom
A recording cannot be made.
Even though a disc has been
loaded, "CD/MD NO DISC" or
"Can't READ" is displayed.
Playback sounds are skipped.
Troubleshooting Chart
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 step 1, unplug and plug in the unit, and then turn the
power on.
Note:
If neither operation above restores the unit, clear all the memory by resetting it.
Clearing all the memory (reset)
1. Press the ON/STAND-BY button to enter the power stand-by mode.
2. Whilst pressing down the PRESET button and the DISPLAY (DEMO) button,
press the ON/STAND-BY button.
After the "RESET" is displayed for about 1 second, the unit will enter the power
stand-by mode.
Caution:
This operation will erase all data stored in memory including clock, timer settings,
tuner preset, and CD or MiniDisc programme.
Before transporting the unit
Remove the CD and the MiniDisc from the unit. Your unit checks whether there is a
disc inside the unit when the compartment is closed. "NO DISC" appears if no disc is
left. Then, set the unit to the power stand-by mode. Carrying the unit with discs left
inside can damage it.
All manuals and user guides at all-guides.com
Possible cause
Did a power failure occur?
Reset the clock.
Set this unit to the power stand-by mode
and then turn it back on.
Does the unit still malfunction?
Reset it.
Is the volume level set to "0"?
Are the headphones connected?
Are the speaker wires disconnected?
Possible cause
Possible cause
Is the MiniDisc protected against acci-
dental erasure?
Did you try to make recording on a play-
back-only MiniDisc?
Can you see the "DISC FULL" or "TOC
FULL" message in the display?
Is the unit located near excessive vibra-
tion?
Is the disc very dirty?
Has condensation formed inside the
unit?
– 9 –
Tuner
Symptom
Radio makes unusual noise con-
Is the stereo system placed near the TV
secutively.
or computer?
Is the AC power lead located near the
aerial?
Remote control
Symptom
The remote control does not op- Is the stereo system unplugged?
erate. Is the battery polarity incorrect?
Are batteries dead?
Is the distance or angle incorrect?
Does the remote control sensor receive
strong light?
Condensation
Sudden temperature changes, storage or operation in an extremely humid environ-
ment may cause condensation inside the cabinet (CD/MD pickup, etc.) or on the
transmitter on the remote control.
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.
Remote Control
Test of the remote control
Face the remote control directly to the remote sensor on the unit.
The remote control can be used within the range shown below:
Press the ON/STAND-BY button. Does the power turn on? Now, you can enjoy the
music.
Precautions
Placing the system
Please ensure that the equipment is positioned in a well-ventilated area
and that there is at least 10 cm (4") of free space along the sides and
back.
There must also be a minimum of 20 cm (8") of free space on the top of
the unit.
10 cm (4") 10 cm (4")
MD-E9000H
Possible cause
Possible cause
Remote sensor
0.2 m - 6 m
(8" - 20')
20 cm (8")
10 cm (4")