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SD-AT100H
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 author-
ised SHARP dealer or service centre.
General
Symptom
No sound is heard.
The sounds from speakers
are not well balanced.
Noise is heard during play-
back.
When a button is pressed,
the unit does not respond.
Interference or noise occurs
on the TV image.
Timer playback does not
start.
The display on the unit is
dark.
Troubleshooting chart
DVD/CD player
Symptom
Even though a disc has been
loaded, "NO DISC" or "NO
PLAY" is displayed.
Playback sounds are
skipped.
The track number, etc. are
not displayed when a disc is
loaded.
The control buttons do not
function. Music or video play-
back is interrupted.
Pictures and sound are
skipped.
The unit does not operate
even if the power is on.
Image cannot be played
back. (Sound is not heard.)
Possible cause
Is the volume level set to "0"?
Are the headphones connected?
Are the speaker wires disconnect-
ed?
Is the speaker size set to NO (OFF)?
Are the speaker leads connected to
the wrong channels?
Is each speaker placed at the same
distance from the listener?
Are speakers adjusted to the same
level?
Move the unit away from any com-
puters or mobile phones.
Set this unit to the power stand-by
mode and then turn it back on. If the
unit still malfunctions, reset it.
Is the unit placed near TV with inter-
nal aerial? Use an external aerial.
Did you remove the plug from the
wall socket, or did a power failure
occur?
Hold down the DISPLAY button on
the remote control for 2 seconds or
more to select "DIMMER OFF".
Possible cause
Is the disc loaded upside down?
Is the disc very dirty?
Does the disc satisfy the standards?
Is the unit located near excessive vi-
brations?
Has condensation formed inside the
unit?
Is the input not set to DVD?
Is the disc very dirty?
Does the disc satisfy the standards?
Is the unit located near excessive vi-
brations?
Has condensation formed inside the
unit?
Is the disc very dirty?
Is the unit located near excessive vi-
brations?
Has condensation formed inside the
unit?
Is a disc other than DVD (region
number 2 or ALL), video CD or audio
CD loaded?
Are the video and audio cables con-
nected improperly?
Is a disc other than DVD (region
number 2 or ALL), video CD or audio
CD loaded?
Is the disc very dirty?
Is the disc loaded upside down?
Clean the optical pickup if it is dirty.
Is the TV input set to "VIDEO 1/VID-
EO 2" etc.?
Is the unit turned on?
Symptom
The power is not turned on.
The sound is not reproduced
in the Dolby Digital 5.1 ch.
The sound is not reproduced
in the MPEG multichannel.
No images are displayed.
The sound is not recorded
with VCR.
Tuner
Symptom
Radio makes unusual noise
consecutively.
Remote control
Symptom
The remote control does not
operate properly.
The unit cannot be turned on
with the remote control.
Condensation
Sudden temperature changes, storage or opera-
tion in an extremely humid environment may
cause condensation inside the cabinet (laser
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.
– 10 –
Possible cause
Is the unit unplugged?
The protection circuit may be acti-
vated. Unplug the unit and plug it in
again.
Is the "Audio setting" on the initial
setup screen set to "D-PCM"?
Change it to "BITSTREAM".
Is the "Audio setting" on the initial
setup screen set to "PCM"? Change
it to "BITSTREAM".
Is TV turned on?
Is the input of TV switched?
Is the VIDEO OUT SELECTOR
switched to the connected source?
Is the sound mode set to "STER-
EO"?
Possible cause
Is the unit placed near the TV or
computer?
Is the FM aerial or AM loop aerial
placed properly? Move the AC pow-
er lead on the unit away from the
aerial if located near.
Possible cause
Is the battery polarity respected?
Are the batteries dead?
Is the distance or angle incorrect?
Are there any obstructions in front of
the unit?
Is the remote control sensor ex-
posed to strong light (inverter fluo-
rescent light, direct sunlight, etc.)?
Is the remote control for another
equipment used simultaneously?
Are buttons on the front and back
faces of the remote control pressed
simultaneously?
Is the AC power lead of the unit
plugged in?
Are the batteries inserted?
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