Sharp LC-52D43U - 52" LCD TV Service Manual page 11

Appendix
Troubleshooting
Problem
• No power
• Unit cannot be operated.
• Remote control unit does not
operate.
• Picture is cut off/with sidebar
screen.
• Strange color, light color, or color
misalignment
• 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
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: 4°F to 140°F ( 20°C to 60°C)
• 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?
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.)
• 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
performance.
Error code
• Check the antenna cable. Check that the antenna is correctly
E202
setup.
E203 • Check the broadcast time in the program guide.
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Possible Solution
Possible Solution
LC-52D43U
.