Troubleshooting - Sharp LC-20S5X Operation Manual

Troubleshooting

Before calling for repair services, check the following items for possible remedies to the encountered symptoms.
LCD TV set
Problem
Picture
Sound
Picture
Remote control does not work.
Unit cannot be operated.
■ Cautions regarding use in high and low temperature environments
• When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed.
This is not a malfunction, and the unit will recover when the temperature returns to normal.
• Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a
heater, as this may cause the cabinet to deform and the LCD panel to malfunction.
(Storage temperature: –20°C to +60°C)
26
• Make sure the AC cord is properly inserted in the power outlet.
• Reception other than those of broadcasting stations can be
considered.
There is no
• Make sure the input mode is set to the LCD TV set.
picture or sound.
• Make sure the power switch of the LCD TV set is on.
• Make sure Picture adjustment is properly adjusted.
There is no
• The fluorescent lamp may have reached the end of its service
picture.
life.
There is no
• Make sure the S-VIDEO terminal has nothing connected.
picture from
• Make sure "AUDIO ONLY" is not set to "DISPLAY OFF".
INPUT1/2/3.
• Make sure the volume is not set to minimum.
• Make sure the sound is not set to mute.
There is no
sound.
• Make sure the antenna cable is properly connected.
• Bad reception can be considered.
There is no
picture or sound,
just noise.
• Make sure the antenna cable is properly connected.
• Bad reception could be the problem.
The picture is
not clear.
• Check colour adjustment.
(NTSC mode)
The picture is too
light or improp-
erly tinted.
• Check if "BACKLIGHT" is set to "DARK".
• Check "CONTRAST".
The picture is
• The fluorescent lamp may have reached the end of its service
too dark.
life.
• Check if batteries in the remote control have sufficient power.
• Make sure the remote sensor window is not under strong
lighting.
• External influences such as lightning, static electricity, etc., may
cause improper operation. In this case, operate the unit after
first turning the power off, or unplugging the AC cord and re-
plugging it in after 1 or 2 minutes.
Check item
Reference
page
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8
8
15
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6, 25
19
9
9
4
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4
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15
15
15
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3
3
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