Troubleshooting Chart - Sharp SD-EX220 Operation Manual

SD-EX220
Using other subwoofer
For a greater emphasis of bass, a commercially available subwoofer with a built-in
amplifier, can be connected to the unit using the SUBWOOFER PRE OUT jack.
Commercially
available subwoofer
(amplifier built in)
Note:
No sound is heard from the speaker in which an amplifier is not built in.
28
To subwoofer
output jack
Audio cable
(commercially available)
Subwoofer signal
To subwoofer
input jack

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 autho-
rized SHARP dealer or service center.
General
Symptom
"CLOCK" appears when the clock
time is checked.
When a button is pressed, the unit
does not respond.
No sound is heard.
The picture on the TV screen is
distorted.
Tuner
Symptom
The radio makes unusual noises
continuously.
The preset channel cannot be re-
called.
Possible cause
Did a power failure occur? Reset the
clock. (Refer to page 17.)
Set this unit to the power stand-by mode
and then turn it back on.
If the unit still malfunctions, reset it. (Refer
to page 29.)
Is the volume level set to "0"?
Are the headphones connected?
Are the speaker wires disconnected?
When a radio or TV which uses an indoor
antenna is placed near the unit, the picture
on the TV screen may be distorted or the
radio may not function properly.
It is recommended that you use an out-
door antenna.
Possible cause
Is the unit placed near the TV or comput-
er?
Is the FM/AM loop antenna placed proper-
ly? Move the antenna away from the AC
power cord if located near.
Did a power failure occur? Preset the
channel again.