Sharp LC70UD1X operation manual Appendix, Troubleshooting Digital broadcasting

Appendix

Troubleshooting

	Problem		Possible solution
•	No power.	•	Is the AC cord disconnected?
		•	Check if you pressed <on the TV.
		•	When the power switch does not work, remove the power plug and insert it again, and
			press <on the TV after waiting more than five seconds.
•	The TV cannot be operated.	•	External influences such as lightning, static electricity, etc., may cause improper
			operation. In this case, operate the TV after first turning off the power, or unplugging the
			AC cord and re-plugging it in after one or two minutes.
•	Remote control unit does not	•	Are batteries inserted with polarity (e, f) aligned?
	operate.	•	Are batteries worn out? (Replace with new batteries.)
		•	Are you using it under strong or fluorescent lighting?
		•	Is a fluorescent light illuminating to the remote control sensor?
•	Picture is cut off.	•	Is the image position correct?
		•	Are screen mode adjustments (Wide mode) such as picture size made correctly? (Pages
			47f48, 67 and 68)
•	Strange colour, light colour,	•	Adjust the picture tone (Pages 37f39).
	or dark colour, or colour	•	Is the room too bright? The picture may look dark in a room that is too bright.
	misalignment.	•	Check the “Colour system” setting (Pages 43 and 50).
		•	Check the “HDMI auto view” setting (Page 49).
•	Power is suddenly turned off.	•	The TV’s internal temperature has increased. Remove any objects blocking the vent or
			clean.
		•	Is the “Sleep timer” set? Select “Off” from the “Sleep timer” menu (Page 41).
		•	Is “No signal off” or “No operation off” activated? (Page 41)
•	No picture.	•	Are connections to external equipment correct? (Pages 28f31)
		•	Is the correct input source selected? (Page 19)
		•	Is a non-compatible signal being input? (Page 69)
		•	Is the picture adjustment correct? (Pages 37f39)
		•	Is the antenna connected properly? (Page 9)
•	No sound.	•	Is the volume too low?
		•	If you do not clearly hear the sound for the visually impaired, go to “HOME” > “TV Menu”
			> “Setup” > “Audio” > “Audio description setting” > “Mix level”, and select the upper level
			to turn up the volume.
		•	Make sure that headphones are not connected.
		•	Check if you pressed eon the remote control unit.
		•	Is the proper item selected in the “Audio select” menu when connecting devices to the
			HDMI 2 terminal or the PC terminal? (Pages 29, 48 and 68)
•	The TV sometimes makes a	•	This is not a malfunction. This happens when the cabinet slightly expands and contracts
	cracking sound.		according to changes in temperature. This does not affect the TV’s performance.
•	AQUOS.NET top page cannot be	•	Is the ETHERNET cable connected correctly? (Page 53)
	displayed.	•	Check the settings of “Network setup”. (Pages 52 – 55)

•Some Internet functions used on a • The TV has only limited functions compared with regular PC browsers. (Page 57) PC are not available from the TV.

Troubleshooting — Digital broadcasting

	Problem	Error code		Possible solution
•	No picture or no sound.	—	•	Is the correct input source selected? (Page 19)
•	Block noise appears on the screen.	—	•	Is the antenna pointing in the correct direction?
			•	Check the “Signal strength” and “Quality” (Page 17).
			•	Are physical objects blocking the antenna?
			•	Is the antenna or antenna cable compatible with DTV broadcast?
•	DTV broadcasts cannot be	E202	•	Is the DTV antenna set up properly?
	received.		•	Is the antenna cable connected properly? (Page 9)
			•	Is the channel settings correct? (Page 17)
•	A specific channel cannot be	—	•	Check the “Signal strength” and “Quality” (Page 17).
	received.
•	No broadcast now	E203	•	Check the current broadcast.

82