Sharp Aquos LC 20B1U - Manual (Page 52)

51
TROUBLESHOOTING
■ Before calling for repair service, check the following items for possible remedies to
the encountered symptoms.
TV set
Problem Check item
Reference
Pages
There is no
picture.
There is no
picture from
AV-IN 1.
9
15
15
Sound Picture
• 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.
There is no
picture or
sound.
Picture
• 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.
There is no
sound.
• 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.
There is no
picture or
sound, just
noise.
• Make sure the antenna cable is properly connected.
• Consider whether TV signals are being properly
received.
Picture is not
clear.
• Make sure the antenna cable is properly connected.
• Consider whether TV signals are being properly
received.
Picture is light
or improperly
tinted.
• Check color adjustment.
• Check color system setting.
The picture is
too dark.
• Press the Brightness button.
• Check PICTURE and BLACK LEVEL adjustment.
• Fluorescent lamp may have reached the end of
service life.
Remote control does not work.
• Check the batteries of the remote controller.
• Make sure the remote sensor window is not under
strong fluorescent lighting.
22, 23
–
49
16
16
13
9
–
9
–
22, 23
22, 23
54
8
8
LC-20B1U-GBpp48-58 02.2.21, 4:39 PM 51