Sharp LC-20S5U LC-20S5U Operation Manual - Page 37

Troubleshooting

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Troubleshooting ■ Before calling for repair services, make the following checks for possible remedies to the encountered symptoms. LCD TV set Problem Sound Picture There is no picture or sound. Check item • Make sure the AC cord 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 POWER switch of the main unit is on. Reference page 9 - 17 16 • Make sure the BRIGHTNESS is properly adjusted. 21 Picture There is no picture. There is no • Fluorescent lamp may have reached the end of service life. 36 picture from • Make sure the S-VIDEO terminal has nothing connected. 13 INPUT1/2/3. • Make sure the AUDIO ONLY is not set to ON. 32 • Make sure the volume is not set to minimum. 17 • Make sure the sound is not set to mute. 17 There is no sound. • Make sure that headphones are not connected. 10 • Make sure the antenna cable is properly connected. 8, 9 There is no • Bad reception could be the problem. - picture or sound, just noise. • Make sure the antenna cable is properly connected. 8, 9 • Bad reception could be the problem. - Picture is not clear. Picture is light or improperly tinted. • Check color adjustment. • Check COLOR SYSTEM setting. 21, 22 25 The picture is too dark. Remote control does not work. The clock (AUTO CLOCK) cannot be set. Unit cannot be operated. • Press the BACKLIGHT button or set the BACKLIGHT or BRIGHTNESS settings. • Check CONTRAST and BRIGHTNESS adjustment. • Fluorescent lamp may have reached the end of service life. • Check the batteries of the remote control. • Make sure the remote sensor window is not in strong lighting. • The broadcasted EDS signal may be weak. Check the antenna. • Carry out EZ SETUP or Setting the CLOCK again. • If EDS signal is not sent, set the clock using MANUAL CLOCK Setting. • 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 1 or 2 minutes. 21 21 36 7 7 - 14, 15, 24 15 - 35

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35
Troubleshooting
■
Before calling for repair services, make the following checks for possible remedies to the encountered symptoms.
Problem
Check item
Reference page
There is no
picture or
sound.
•
Make sure the AC cord 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 POWER switch of the main unit is on.
9
–
17
16
There is no
picture.
There is no
picture from
INPUT1/2/3.
•
Make sure the BRIGHTNESS is properly adjusted.
• Fluorescent lamp may have reached the end of service
life.
•
Make sure the S-VIDEO terminal has nothing connected.
•
Make sure the AUDIO ONLY is not set to ON.
21
36
13
32
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.
17
17
10
There is no
picture or
sound, just
noise.
•
Make sure the antenna cable is properly connected.
• Bad reception could be the problem.
8, 9
–
Picture is not
clear.
•
Make sure the antenna cable is properly connected.
• Bad reception could be the problem.
8, 9
–
Picture is light
or improperly
tinted.
•
Check color adjustment.
•
Check COLOR SYSTEM setting.
21, 22
25
The picture is
too dark.
•
Press the BACKLIGHT button or set the BACKLIGHT or
BRIGHTNESS settings.
•
Check CONTRAST and BRIGHTNESS adjustment.
• Fluorescent lamp may have reached the end of service
life.
21
21
36
Remote control does not work.
•
Check the batteries of the remote control.
• Make sure the remote sensor window is not in strong
lighting.
7
7
The clock (AUTO CLOCK) cannot
be set.
•
The broadcasted EDS signal may be weak. Check the
antenna.
• Carry out EZ SETUP or Setting the CLOCK again.
• If EDS signal is not sent, set the clock using MANUAL
CLOCK Setting.
–
14, 15, 24
15
Unit cannot be operated.
• 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 1 or 2
minutes.
–
Sound
Picture
Picture
LCD TV set