CD-CH1500 (serv.man3). 1 - Text (1-15) - Sharp Audio Service Manual (repair manual). Page 9

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Many potential "problems" can be resolved by the owner without calling a service techni-
cian.
If something is wrong with this product, check the following before calling your authorised
SHARP dealer or service centre.

Sudden temperature changes, storage or operation in an extremely humid environ-
ment may cause condensation inside the cabinet (CD pickup, tape heads, etc.) or on
the transmitter LED on the remote control.
Condensation can cause the unit to malfunction. If this happens, leave the power on
with no disc (or cassette) in the unit until normal playback is possible (about 1 hour).
Wipe off any condensation on the transmitter LED with a soft cloth before operating
the unit.

The clock is not on time.

Did a power failure occur? Reset the clock.

When a button is pressed, the 
unit does not respond.

Set this unit to the power stand-by mode and then 
turn it back on.

If the unit still malfunctions, reset it.

No sound is heard.

Is the volume level set to "0"?

Are the headphones connected?

Are the speaker wires disconnected?

Playback does not start.

Is the disc loaded upside-down?

Playback stops in the middle 
or is not performed properly.

Does the disc satisfy the standards?

Is the disc distorted or scratched?

Playback sounds are 
skipped, or stopped in the 
middle of a track.

Is the unit located near excessive vibrations?

Is the disc very dirty?

Has condensation formed inside the unit?

Radio makes unusual noise 
consecutively.

Is the unit placed near the TV or computer?

Is the FM/AM loop aerial placed properly? Move the 
AC power lead away from the aerial if located near.

Cannot record.

Is the erase-protection tab removed?

Cannot record tracks with 
proper sound quality.

Is it a normal tape? (You cannot record on a metal 
or CrO  tape.)

Cannot erase completely.

Sound skipping.

Is there any slack? Is the tape stretched?

Cannot hear treble.

Are the capstan, pinch roller, or heads dirty?

Sound fluctuation.

Cannot remove the tape.

If a power failure occurs during playback, the heads 
remain engaged with the tape. Do not open the 
compartment forcibly. Wait until electricity resumes.

The remote control does not 
operate.

Is the AC power lead of the stereo system 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?

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.

If neither operation above restores the unit, clear all the memory by following
the instructions below.
1

Press the ON/STAND-BY button to enter the power stand-by mode.

2

Whilst pressing down the VOLUME    button, press the ON/STAND-BY button
until "ALL CLEAR" appears.

Caution:
This operation will erase all data stored in memory including clock, timer settings,
tuner preset and CD programme.
 
 

On the back of this unit is equipped with a transport safety screw in order to prevent
damage during transportation.

1

Press the ON/STAND-BY button to turn the power on.

2

Remove all discs from the unit, close the disc tray. "CD NO DISC" is displayed.

3

Press the ON/STAND-BY button to enter the stand-by mode. "GOOD-BYE" is dis-
played.

4

When "GOOD-BYE" disappears, unplug the AC power lead from the AC socket.

5

Insert the transport safety screw into the back of the unit and tighten it with a flat-
blade screwdriver.

Replace the batteries if the operating distance is reduced or if the operation
becomes erratic. Purchase 2 "AA" size batteries (UM/SUM-3, R6, HP-7 or similar).
Periodically clean the transmitter on the remote control and the sensor on the ste-
reo system with a soft cloth.
Exposing the sensor on the stereo system to strong light may interfere with opera-
tion. Change the lighting or the direction of the stereo system.
Keep the remote control away from moisture, heat, shock, and vibrations.

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.