Troubleshooting - Sharp Aquos LC-20B1U Operation Manual

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TROUBLESHOOTING
II Before calling for repair service, check the following items for possible remedies to
the encountered symptoms.
TV set
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Problem
There is no
picture or
sound.
There is no
picture.
There is no
picture from
AV-IN 1.
There is no
sound.
~
I~~IID
There is no
picture or
sound, just
noise.
Check item
o
Make sure the AC adapter is properly inserted in the
power outlet.
G
Reception other than those of broadcasting stations
can be considered.
G
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.
" 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.
Reference
Pages
9
15
15
22,23
54
49
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.
o
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
20
22,23
54
8
8
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" Check the batteries of the remote controller.
Remote control does not work.
"Make sure the remote sensor window is not under
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strong fluorescent lighting.
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