LC-30HV4E (serv.man44) - Sharp TV User Guide / Operation Manual. Page 66

• No power.

• Unit cannot be operated.

• Remote control unit does not

operate.

• Picture is cut off.

• Strange colour, light colour, or

dark, or colour misalignment.

• Power is suddenly turned off.

• No picture.

• No sound.

• Make sure the Display and the AVC System are connected correctly. (See page

6.)

• Check if you pressed B on the remote control unit. (See page 14.)

If the indicator on the Display lights up red, press B.

• Is the AC cord disconnected? (See page 13.)

• Has the main power been turned on? (See page 14.)

• External influences such as lightning, static electricity, etc., may cause  improper

operation. In this case, operate the unit after first turning the power of the Display
and the AVC System, or unplugging the AC cord and re-plugging it in after 1 or
2 minutes.

• Are batteries inserted with polarity (e, f) aligned? (See page 9.)
• Are batteries worn out? (Replace with new batteries.)

• Are you using it under strong or fluorescent lighting?

• Is a fluorescent light illuminated to remote control sensor?

• Is the image position correct? (See pages 47 and 48.)

• Are screen mode adjustments such as picture size made correctly? (See pages

52 to 56.)

• Adjust the picture tone. (See pages 30 to 34 and 59.)

• Is the room too bright? The picture may look dark in a room that is too bright.

• Check the colour system setting. (See pages 26 and 51.)

• Check the input signal setting. (See page 50.)

• The unit’s internal temperature has increased.

Remove any objects blocking vent or clean.

• Check the power control setting. (See pages 36 to 38.)

• Check the sleep timer setting. (See page 58.)

• Is connection to other components correct? (See pages 39 to 45.)

• Has input signal setup been done correctly after connection? (See page 50.)

• Is the correct input selected? (See page 50.)

• Is a non-compatible signal being input? (See page 67.)

• Is picture adjustment correct? (See pages 30 to 34.)

• Is the volume too low? (See page 18.)

• Is “Variable” selected in “Audio Out”? (See page 58.)

• 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 LCD panel to malfunction.
Storage temperature: –20°C to +60°C (–4°F to +140°F).