Troubleshooting - Sharp LC-20SH21U Operation Manual

Troubleshooting

Before calling for repair services, make the following checks for possible remedies to the encountered symptoms.
LCD TV set
Problem
Picture
Sound
Picture
Remote control does not work.
Unit cannot be operated.
32
• Make sure the AC cord is properly inserted in the power
outlet.
There is no
• Reception other than those of broadcasting stations can
picture or
be considered.
sound.
• Make sure the input mode is set to TV.
• Make sure the POWER switch of the main unit is on.
• Make sure the Brightness is properly adjusted.
There is no
• Fluorescent lamp may have reached the end of service
picture.
life.
There is no
picture from
INPUT1/2/3/4.
• Make sure the volume is not set to minimum.
• Make sure the sound is not set to mute.
There is no
• Make sure that headphones are not connected.
sound.
• Make sure the antenna cable is properly connected.
There is no
• Bad reception could be the problem.
picture or
sound, just
noise.
• Make sure the antenna cable is properly connected.
• Bad reception could be the problem.
Picture is not
clear.
• Check Color Settings.
Picture is light
or improperly
tinted.
• Check Brightness, Contrast and Backlight Settings.
• Fluorescent lamp may have reached the end of service
The picture is
life.
too dark.
• Check the batteries of the remote control.
• Make sure the remote sensor window is not in strong
lighting.
etc., may cause improper operation. In this case,
unplugging the AC cord and re-plugging it in 1 or 2
minutes.
Check item
Reference page
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11
9, 10
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9, 10
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8
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