Sharp CD-BA300 Service Manual Download Page 6

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CD-BA300

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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
authorized SHARP dealer or service center.

■

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 CrO

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.

■

Tuner

Symptom

●

Radio makes unusual noise con-
secutively.

Possible cause

●

Is the unit placed near the TV or com-
puter?

●

Is the FM/AM loop antenna placed prop-
erly?
Move the AC power cord away from the
antenna if located near.

■

General

Symptom

●

The clock is not on 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

●

Is the disc loaded upside-down?

●

Does the disc satisfy the standards?

●

Is the disc distorted or scratched?

●

Is the unit located near excessive vibra-
tions?

●

Is the disc very dirty?

●

Has condensation formed inside the
unit?

■

Remote control

Symptom

●

The remote control does not op-
erate.

Possible cause

●

Is the AC power cord of the unit plugged
in?

●

Is the battery polarity respected?

●

Are the 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 environment may cause con-
densation inside the cabinet (CD pickup, tape heads,
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 (or
cassette) 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.

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.

●

If the unit still malfunctions, reset it.

●

Is the volume level set to “0”?

●

Are the headphones connected?

●

Are the speaker wires disconnected?

■

If trouble occurs

When this product is subjected to strong external interference (mechanical shock, ex-
cessive static electricity, abnormal supply voltage due to lightning, etc.) or if it is oper-
ated incorrectly, it may malfunction.

If such a problem occurs, do the following:

. Set the unit to the stand-by mode and turn the power on again.

. If the unit is not restored in step 1, unplug and plug in the unit, and then turn

the power on.

. If neither step 1 nor 2 does not restore the unit, do the following:

①

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

②

While pressing down the

button and X-BASS/DEMO button, press the

ON/STAND-BY button until “CLEAR AL” appears.

Caution: