Troubleshooting Chart - Sharp HT-SB400 Operation Manual

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
Symptom
●
No sound is heard. Is the input signal (selection) set
properly?
●
Is the volume level set to "0"?
●
Is muting activated?
●
Noise is heard Move the speaker away from any
during playback.
computers or mobile phones.
●
When a button is Set this speaker to the stand-by
pressed, the
mode and then turn it back on.
speaker does not
respond.
●
The power is not Is the AC/DC adaptor unplugged?
turned on.
(Refer to page 13)
●
The protection circuit may be
activated. Unplug and plug in the
power lead again after 5 minutes or
more.
■ Remote control
Symptom
●
The remote control Is the battery polarity correct?
does not operate ●
Is the battery dead?
properly.
●
Is the distance or angle incorrect?
●
Are there any obstructions in front of
the speaker?
●
Is there a strong light shining on the
remote sensor?
●
Is the remote control for another
equipment used simultaneously?
●
The speaker cannot Is the AC power lead of the speaker
be turned on with plugged in?
●
the remote control. Is the battery inserted?
Possible cause
Possible cause
Symptom
●
TV cannot be Depending on the model, some or all
operated with the functions may not be operable using
remote control. the remote control of this speaker. In
this case, use the remote control
supplied with the TV.
■ 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 speaker to malfunction. If this
happens, leave the power on until normal playback is possible
(about 1 hour). Wipe off any condensation on the transmitter
with a soft cloth before operating the speaker.
■
If problem occurs
When this product is subjected 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:
1. Set the speaker to the stand-by mode and turn the power on
again.
2. If the speaker is not restored in the previous operation,
unplug and plug in the speaker, and then turn the power on.
■
Factory reset, clearing all setting
Make sure to disconnect all audio input cables attached to the
speaker before performing the factory reset.
Can be operated on the remote control only.
1. Press the ON/STAND-BY button to enter the power stand-by
mode.
2. Press and hold the ON/STAND-BY button until "CL" appears.
Caution:
This operation will erase all data stored in memory.
Possible cause
HT-SB400
17