Read Sharp HT-SB250 User Guide / Operation Manual online
18
HT-SB250(BK)
2010 December 29
HT-SB250_A6_EN_UK.fm
HT-SB250(W)
References
Troubleshooting chart
Many potential problems can be resolved by the owner without calling
a service technician.
If something is wrong with this product, check the following before
calling your authorised SHARP dealer or service centre.
General
Remote control
Condensation
Sudden temperature changes, storage or operation in an extremely
humid environment may cause condensation inside the cabinet or on
the transmitter on the remote control.
Condensation can cause the unit to malfunction. If this happens, leave
the power on until normal operation is possible (about 1 hour). Wipe off
any condensation on the transmitter with a soft cloth before operating
the unit.
If problem occurs during operation
When this product is subject to strong external interference (mechanical
shock, excessive static electricity, abnormal supply voltage due to
lightning, etc.) or if it is operated incorrectly, it may malfunction.
If such a problem occurs, do the following:
If such a problem occurs, do the following:
1. Set the unit to the stand-by mode and turn the power on again.
2. If the unit is not restored in the previous operation, unplug and
plug in the unit, and then turn the power on.
Factory reset, clearing all setting
Make sure to disconnect all audio input cables attached to the unit
before performing the factory reset.
1. Press the ON/STAND-BY button to enter the power stand-by
1. Press the ON/STAND-BY button to enter the power stand-by
mode.
2. While pressing the SURROUND button, press and hold the ON/
STAND-BY button until “CL” appears.
Caution:
This operation will erase all data stored in memory.
Symptom
Possible cause
No sound is heard.
z
Is the input signal (selection) set
properly?
properly?
z
Is the volume level set to “0”?
z
Is muting activated?
Noise is heard during
playback.
z
Move the unit away from any
computers or mobile phones.
computers or mobile phones.
When a button is
pressed, the unit does
not respond.
z
Set this unit to the stand-by mode and
then turn it back on.
then turn it back on.
The power is not turned
on.
z
Is the unit unplugged? (Refer to page
14)
14)
z
The protection circuit may be
activated. Unplug and plug in the
power lead again after 5 minutes or
more.
activated. Unplug and plug in the
power lead again after 5 minutes or
more.
The information is not
displayed even if the
unit is turned on.
z
Is the unit set to “Dimmer display off”
mode?
mode?
Symptom
Possible cause
The remote control does
not operate properly.
z
Is the battery polarity correct?
z
Is the battery dead?
z
Is the distance or angle incorrect?
z
Are there any obstructions in front of the
unit?
z
Is there a strong light shining on the
remote sensor?
z
Is the remote control for another
equipment used simultaneously?
Symptom
Possible cause
The unit cannot be
turned on with the
remote control.
z
Is the AC power lead of the unit plugged
in?
z
Is the battery inserted?
TV cannot be operated
with the remote control.
z
Depending on the model, some or all
functions may not be operable using the
remote control of this unit. In this case,
use the remote control supplied with the
TV.
Click on the first or last page to see other HT-SB250 service manuals if exist.