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Troubleshooting - Sharp LC-C5262U Service Manual

Lcd color television




No power
Unit cannot be operated.
Remote control unit does not
Picture is cut off/with sidebar
Strange color, light color, or color
Power is suddenly turned off.
No picture
No sound
The TV sometimes makes a
cracking sound.
Troubleshooting-Digital broadcasting
The error message about reception of broadcast
The example of an error
message displayed on a screen
Failed to receive broadcast.
No broadcast now.
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 Liquid Crystal panel to malfunction.
Storage temperature:
Check if you pressed TV POWER on the remote control unit. If the
indicator on the TV does not light up, press POWER on the TV.
Is the AC cord disconnected?
Has the power been turned on?
External influences such as lightning, static electricity, may cause improper
operation. In this case, operate the unit after first turning on the power of the TV or
unplugging the AC cord and replugging it in after 1 or 2 minutes.
Is the FUNCTION set correctly? Set it to the TV setting position.
Are batteries inserted with polarity ( +, _ ) aligned?
Are batteries worn out? (Replace with new batteries.)
Are you using it under strong or fluorescent lighting?
Is a fluorescent light illuminated near the remote control sensor?
Is the image position correct?
Are screen mode adjustments such as picture size made correctly?
Adjust the picture tone.
Is the room too bright? The picture may look dark in a room that is too bright.
Check the input signal setting.
Is the sleep timer set?
Check the power control settings.
The unit's internal temperature has increased. Remove any objects blocking vent
or clean.
Is connection to other components correct?
Is correct input signal source selected after connection?
Is the correct input selected?
Is picture adjustment correct?
Is "On" selected in "Audio Only"?
Is a non-compatible signal being input?
Is the volume too low?
Is "Variable" selected in "Output Select"?
Have you pressed MUTE on the remote control unit?
This is not a malfunction. This happens when the cabinet slightly expands and
contracts according to change in temperature. This does not affect the TV's
Error code
4°F to
140°F ( 20°C to
Possible Solution
Possible Solution
Check the antenna cable. Check that the antenna is correctly
Check the broadcast time in the program guide.
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