Sharp LC-30HV4M operation manual Appendix, Troubleshooting, Problem Possible Solution

Appendix

Troubleshooting

Problem	Possible Solution
• No power.	• 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 (STANDBY/ON) button.
	• Is the AC cord disconnected? (See page 13.)
	• Has the main power been turned on? (See page 14.)
• Unit cannot be operated.	• 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.
• Remote control unit does not	• Are batteries inserted with polarity (e, f) aligned? (See page 9.)
operate.	• 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?
• Picture is cut off.	• Is the image position correct? (See pages 45 and 46.)
	• Are screen mode adjustments such as picture size made correctly? (See pages
	50 to 54.)
• Strange colour, light colour, or	• Adjust the picture tone. (See pages 29 to 33 and 57.)
dark, or colour misalignment.	• Is the room too bright? The picture may look dark in a room that is too bright.
	• Check the colour system setting. (See pages 25 and 49.)
	• Check the input signal setting. (See page 48.)
• Power is suddenly turned off.	• The unit’s internal temperature has increased.
	Remove any objects blocking vent or clean.
	• Check the power control setting. (See pages 35 to 37.)
	• Check the sleep timer setting. (See page 56.)
• No picture.	• Is connection to other components correct? (See pages 38 to 43.)
	• Is correct input signal source selected after connection? (See page 48.)
	• Is the correct input selected? (See page 48.)
	• Is a non-compatible signal being input? (See page 65.)
	• Is picture adjustment correct? (See pages 29 to 33.)
• No sound.	• Is the volume too low? (See page 16.)
	• Is “Variable” selected in “Audio Out”? (See page 56.)
	• During Auto search, the sound system should automatically be detected.
	However, auto-detect may not find some signals, in which case choose Manual.
	(See page 25.)
• Picture is not clear.	• The Auto search (or Auto Installation) automatically searches for compatible
• No sound. (Even though the	sound systems, but may not detect them depending on electric field conditions.
System is receiving bilingual and	In that case, adjust to optimum sound system position by following directions on
stereo signals, there is no sound	page 25.
and the mode menu does not
display.)

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 LCD panel to malfunction.

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

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