Troubleshooting - Sharp LC-42SB45U Operation Manual

Appendix
Troubleshooting
Problem Possible Solution
• No power
• Check if you pressed POWER on the remote control unit. (See page 13.) If the
indicator on the TV does not light up, press POWER on the TV.
• Is the AC cord disconnected? (See page 7.)
• Has the power been turned on? (See page 13.)
• Unit cannot be operated.
• External influences such as lightning, static electricity, may cause improper operation.
In this case, operate the unit after first turning off the power of the TV or unplugging
the AC cord and replugging it in after 1 or 2 minutes.
• Remote control unit does not
• Is the FUNCTION set correctly? Set it to the TV setting position.
operate. • Are batteries inserted with polarity (
+, -)
aligned? (See page 8.)
• 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?
• Picture is cut off/with sidebar
• Are screen mode adjustments such as picture size made correctly? (See page 16.)
screen.
• Strange color,light color, or color • Adjust the picture tone. (See page19.)
misalignment • Is the room too bright? The picture may look dark in a room that is too bright.
• Check the input signal setting. (See page 23.)
• Power is suddenly turned off. • Is the sleep timer set? (See page 14.)
• The unit's internal temperature has increased. Remove any objects blocking vent or
clean.
• No picture
• Is connection to other components correct? (See page 12.)
• Is correct input signal source selected after connection? (See page 23.)
• Is the correct input selected? (See page 23.)
• Is picture adjustment correct? (See page 23.)
• No sound
• Is the volume too low? (See page 14.)
• Have you pressed MUTE on the remote control unit? (See page 14.)
• The TV sometimes makes a
• This is not a malfunction. This happens when the cabinet slightly expands and
cracking sound. contracts according to change in temperature. This does not affect the TV's
performance.
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: -4°C to + 140°F (-20°C to +60°C)
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