Appendix; Troubleshooting - Sharp AQUOS LC-37HV4U Operation Manual

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
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°F to +140°F (–20°C to +60°C)
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• Make sure the Display and the AVC System are connected correctly. (See page
10.)
• Check if you pressed TV POWER on the remote control unit. (See page 21.)
If the indicator on the Display lights up red, press POWER on the Display.
• Is the AC cord disconnected? (See page 20.)
• Has the main power been turned on? (See page 21.)
• 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
Display and the AVC System, or unplugging the AC cord and replugging it in
after 1 or 2 minutes.
• Is the Mode switch set correctly? Slide it to the TV setting position.
• Are batteries inserted with polarity (e, f) aligned? (See page 13.)
• 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? (See pages 47 and 48.)
• Are screen mode adjustments such as picture size made correctly? (See page
52)
• Adjust the picture tone. (See pages 32 to 36.)
• Is the room too bright? The picture may look dark in a room that is too bright.
• Check the input signal setting. (See page 50.)
• Is the sleep timer set? (See page 55.)
• Check the power control settings. (See pages 38 to 40.)
• The unit's internal temperature has increased.
Remove any objects blocking vent or clean.
• Is connection to other components correct? (See pages 41 to 46.)
• Is correct input signal source selected after connection? (See page 50.)
• Is the correct input selected? (See page 50.)
• Is a non-compatible signal being input? (See page 77.)
• Is picture adjustment correct? (See pages 32 to 36.)
• Is the volume too low? (See page 24.)
• Is "Variable" selected in "Audio Out"? (See page 55.)
• Is correct speaker output ("External" or "Internal") selected in "Speaker"? (See
pages 56 and 57.)
Possible Solution