Troubleshooting - Sharp LC 20SH3U 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
There is no
picture or
sound.
There is no
Picture
picture.
There is no
picture from
INPUT2
There is no
sound.
There is no
picture or
sound, just
noise.
Picture is
not clear.
Picture is
light or
improperly
tinted.
The picture
is too dark.
Remote control does not work.
Unit cannot be operated.
• 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.
• 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.
• 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.
• Bad reception could be the problem.
• Make sure the antenna cable is properly connected.
• Bad reception could be the problem.
• Check color adjustment.
• 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 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 the LCD TV set, or unplugging the AC cord and re-plugging it
in after 1 or 2 minutes.
Check item