Troubleshooting Chart - Sharp SD-AT50H Operation Manual

Troubleshooting chart

SD-AT50H
DX-AT50H
ENGLISH
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-
rised SHARP dealer or service centre.
! General
Symptom
No sound is heard. " Is the volume level set to "0"?
" Are the headphones connected?
" Are the speaker wires disconnect-
" Is the speaker size set to NO (OFF)?
The sounds from speakers " Are the speaker leads connected to
are not well balanced.
" Is each speaker placed at the same
" Are speakers adjusted to the same
Noise is heard during play- " Move the system away from any
back.
When a button is pressed, " Set the system to the power stand-
the system does not re-
spond.
Interference or noise occurs " Is the system placed near TV with in-
on the TV image.
Timer playback does not " Did you remove the plug from the
start.
The display on the system is " Hold down the DISPLAY button on
dark.
The power is not turned on. " Is the system unplugged?
" Are the system connection cables
" The protection circuit may be acti-
E-53
Possible cause Reference
page
P. 18
P. 28
P. 12
ed?
P. 41
P. 12
the wrong channels?
P. 16
distance from the listener?
P. 42
level?
computers or mobile phones.
P. 54
by mode and then turn it back on. If
the system still malfunctions, reset it.
P. 13
ternal aerial? Use an external aerial.
P. 24
wall socket, or did a power failure
occur? Reset the clock.
P. 18
the remote control for 2 seconds or
more to select "ON".
P. 18
P. 11
disconnected?
P. 54
vated. Unplug and plug in the power
lead again after 5 minutes or more.
Symptom Possible cause
The sound is not reproduced " Is the initial setting screen set to
in the Dolby Digital 5.1 ch. "DPCM"? Change it to "BIT-
STREAM".
No images are displayed. " Is TV turned on?
" Is the input of TV switched?
! Tuner
Symptom Possible cause
The radio makes unusual " Is the system placed near the TV or
noises continuously. computer?
" Is the FM aerial or AM loop aerial
placed properly? Move the aerial
away from the AC power lead or the
system if located near.
The preset channel cannot " Did you remove the plug from the
be recalled. wall socket, or did a power failure
occur?
Set the channel again.
! Remote control
Symptom Possible cause
The remote control does not " Is the battery polarity respected?
operate properly.
" Are the batteries dead?
" Is the distance or angle incorrect?
" Are there any obstructions in front of
the AV control 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?
The system cannot be turned " Are the AC power leads of the DVD
on with the remote control. player and the subwoofer/amplifier
unit plugged in?
" Are the batteries inserted?
02/8/28 SD-AT50H(H)E6.fm
Reference
page
P. 20
P. 51
P. 51
Reference
page
P. 13
P. 13
P. 26
Reference
page
P. 17
P. 17
P. 17
P. 18
P. 17