Troubleshooting Chart - Sharp HT-M750H Operation Manual

Troubleshooting chart

Many potential problems can be resolved by the owner without call-
ing 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 power is not Is the unit unplugged?
turned on.
No sound is Is the volume level set to "0"?
heard.
Are the headphones connected?
Are the speaker wires disconnected?
The sounds from Are the speaker wires connected to the
speakers are not wrong channels?
well balanced.
Noise is heard Move the unit away from any computers or
during playback. mobile phones.
When a button is Set the unit to the power stand-by mode and
pressed, the unit then turn it back on.
does not re-
If the unit still malfunctions, reset it. (Refer to
spond.
page 65.)
Interference or Is the unit placed near TV with internal aeri-
noise occurs on al? Use an external aerial.
the TV image.
The display on Is the display in the dimmer mode?
the unit is dark.
No images are Is TV turned on?
displayed.
Is the TV input switched on?
Possible cause
DVD player
Symptom
Even though a Is the disc loaded upside down?
disc is loaded,
Is the disc very dirty?
"No Disc" is dis-
Does the disc satisfy the standards?
played.
Is the unit located near excessive vibrations?
Playback sounds Is condensation formed inside the unit?
are skipped.
The control but- Is the disc very dirty?
tons do not func-
Does the disc satisfy the standards?
tion. Music or
Is the unit located near excessive vibrations?
video playback is
Is condensation formed inside the unit?
interrupted.
Pictures and Is the disc very dirty?
sound are
Is the unit located near excessive vibrations?
skipped.
Is condensation formed inside the unit?
The unit does not Is a disc other than a DVD (region number 2
operate even if or ALL), super video CD, video CD, audio
the power is on. CD, CD-R or CD-RW loaded?
Images cannot Are the video and audio cables connected
be played back. improperly?
(Sound is not
Is a disc other than a DVD (region number 2
heard.)
or ALL), super video CD, video CD, audio
CD, CD-R or CD-RW loaded?
Is the disc very dirty?
Is the disc loaded upside down?
Is the optical pickup dirty?
Is the TV input set to video (VIDEO 1, VIDEO
2, etc.)?
Is the unit turned on?
Possible cause
HT-M750H
ENGLISH
E-64