Sharp LC-46PD7X operation manual Appendix, Troubleshooting DTV, Problem Possible Solution

Appendix

Troubleshooting

	Problem		Possible Solution
•	No power.	•	Check if you pressed POWER on the remote control unit. (See page 15.)
			If the indicator on the TV lights up red, press POWER.
		•	Is the AC cord disconnected? (See page 7.)
		•	Has the power been turned on? (See page 15.)
•	Unit cannot be operated.	•	External infl uences such as lightning, static electricity, etc., may cause improper
			operation. In this case, operate the unit after fi rst turning the power off the TV 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 5.)
	operate.	•	Are batteries worn out? (Replace with new batteries.)
		• Are you using it under strong or fl uorescent lighting?
		• Is a fl uorescent light illuminated to remote control sensor?
•	Picture is cut off.	•	Is the image position correct? (See page 42.)
		•	Are screen mode adjustments such as picture size made correctly? (See pages 43,
			45 and 46.)
•	Strange colour, light colour, or	•	Adjust the picture tone. (See pages 27 to 29 and 47.)
	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 23 and 48.)
		•	Check the input signal setting. (See pages 40 and 49.)
		•	Check the HDMI Setup setting. (See page 47.)
•	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 page 31.)
		•	Is sleep timer set? (See page 17.)
•	No picture.	•	Is connection to other equipment correct? (See pages 10 and 11.)
		•	Has input signal setup been done correctly after connection? (See pages 40 and 49.)
		•	Is the correct input selected? (See page 49.)
		•	Is picture adjustment correct? (See pages 27 to 29.)
		•	Is the antenna connected properly? (See page 9.)
		•	Is “On” selected in “Audio Only”? (See page 47.)
•	No sound.	•	Is the volume too low? (See page 17.)

Troubleshooting (DTV)

	Problem		Possible Solution
•	No picture or no sound.	•	Is the correct input source selected? (See page 49.)
•	Block noise appears on the	•	Is the antenna pointing in the correct direction?
	screen.	•	Check the Signal Level and Quality. (See page 35.)
		•	Are physical objects blocking the antenna?
		•	Is the antenna or antenna cable compatible with DTV broadcasts?
•	DTV broadcasts cannot be	•	Is the DTV antenna set up properly?
	received.	•	Is the antenna cable connected properly? (See page 9.)
		•	Are the channel settings correct? (See pages 35 and 36.)
•	A specifi c channel cannot be	•	Check the Signal Level and Quality. (See page 35.)
	received.

Cautions regarding use in high and low temperature environments

•When the unit is used in a low temperature space (e.g. room, offi ce), 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: f20°C to e60°C.

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