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Troubleshooting - Sharp LC-20B2UA Operation Manual

Lcd color television
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TROUBLESHOOTING
• Before calling for repair service, check the following items for possible remedies to
the encountered symptoms.
TV set
I
Problem
Check item
Reference
Pages
There is no
picture or
sound.
There is no
picture.
There is no
picture from
AV-IN 1.
• Make sure the AC adapter is properly inserted in the
power outlet.
• Reception other than those of broadcasting stations
can be considered.
• Make sure the input mode is set to TV.
• Make sure the main power switch of the main unit is
on.
• Make sure the BLACK LEVEL is properly adjusted.
• Fluorescent lamp may have reached the end of
service life.
• Make sure the S-Video terminal is free of connections.
9
15
15
22, 23
36
There is no
sound.
~
m~~~lli
There is no
picture or
sound, just
noise.
• Make sure the volume is not set to minimum.
• Make sure the sound is not set to mute.
• Make sure that headphones are not connected.
..:
~
• Make sure the antenna cable is properly connected.
• Consider whether TV signals are being properly
received.
16
16
13
9
Picture is not
clear.
Picture is light
or improperly
tinted.
The picture is
too dark.
• Make sure the antenna cable is properly connected.
• Consider whether TV signals are being properly
received.
• Check color adjustment.
• Check color system setting.
• Press the Brightness button.
• Check PICTURE and BLACK LEVEL adjustment.
• Fluorescent lamp may have reached the end of
service life.
9
22, 23
22, 23
40
Remote control does not work.
• Check the batteries of the remote controller.
• Make sure the remote sensor window is not under
strong fluorescent lighting.
8
8

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