E-49

SD-AT50(U)E5.fm02/7/19
SD-AT50
ENGLISH
DX-AT50
References
- Troubleshooting chart -
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

"Tuner

"Remote control

Symptom Possible cause Reference
page
No sound is heard. !Is the volume level set to "0"? P. 18
!Are the headphones connected? P. 28
!Are the speaker wires disconnect-
ed? P. 12
!Is the speaker size set to NO (OFF)? P. 41
The sounds from speakers
are not well balanced.
!Are the speaker cords connected to
the wrong channels? P. 12
!Is each speaker placed at the same
distance from the listener? P. 16
!Are speakers adjusted to the same
level? P. 42
Noise is heard during play-
back.
!Move the system away from any
computers or mobile phones.
When a button is pressed,
the system does not re-
spond.
!Set the system to the power stand-
by mode and then turn it back on. If
the system still malfunctions, reset it.
P. 50
Interference or noise occurs
on the TV image.
!Is the system placed near TV with in-
ternal antenna? Use an outdoor an-
tenna.
P. 13
Timer playback does not
start.
!Did you remove the plug from the
wall jack, or did a power failure oc-
cur?
P. 24
The display on the system is
dark.
!Hold down the DISPLAY button on
the remote control for 2 seconds or
more to select "ON".
P. 18
The power is not turned on. !Is the system unplugged? P. 18
!Is the system connection cord (for
DVD player) disconnected? P. 11
!The protection circuit may be acti-
vated. Unplug and plug in the power
cord again after 5 minutes or more.
P. 50
Symptom Possible cause Reference
page
The sound is not reproduced
in the Dolby Digital 5.1 ch.
!Is the initial setup screen set to
"DPCM"? Change it to "BIT-
STREAM".
P. 20
No images are displayed. !Is TV turned on? P. 47
!Is the input of TV switched? P. 47
Symptom Possible cause Reference
page
Radio makes unusual noise
consecutively.
!Is the system placed near the TV or
computer? P. 13
!Is the FM antenna or AM loop anten-
na placed properly? Move the an-
tenna away from the AC power cord
or the system if located near.
P. 13
Symptom Possible cause Reference
page
The remote control does not
operate properly.
!Is the battery polarity respected? P. 17
!Are the batteries dead?
!Is the distance or angle incorrect? P. 17
!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.)?
P. 17
!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
on with the remote control.
!Are the AC power cords of the DVD
player and the subwoofer/amplifier
unit plugged in?
P. 18
!Are the batteries inserted? P. 17