Sharp LC-22GA3M, LC-22GA3X operation manual Troubleshooting, LCD TV set

Troubleshooting

Before calling for repair services, check the following items for possible remedies to the encountered symptoms.

LCD TV set

		Problem		Check item	Reference
					page
			•	Make sure the AC adapter is properly inserted in the power	6
Sound	Picture			outlet.
			•	Reception other than those of broadcasting stations can be	–
		There is no
				considered.
		picture or sound.
			•	Make sure the input mode is set to the LCD TV set.	10
			•	Make sure the MAIN POWER switch of the LCD TV set is on.	10
		There is no	•	Make sure Picture adjustment is properly adjusted.	16
	Picture		•	The fluorescent lamp may have reached the end of its service	–
		picture.		life.
		There is no	•	Make sure the S-VIDEO terminal has nothing connected.	8, 29
		picture from
		AV-IN1/2/3.
			•	Make sure the volume is not set to minimum.	11
			•	Make sure the sound is not set to mute.	11
		There is no
		sound.
			•	Make sure the antenna cable is properly connected.	6
		There is no	•	Bad reception can be considered.	–
		picture or sound,
		just noise.
			•	Make sure the antenna cable is properly connected.	6
			•	Bad reception could be the problem.	–
		The Picture is
		not clear.
			•	Check colour adjustment.	16
		The Picture is too		(NTSC mode)
		light or improp-
		erly tinted.
			•	Check if “BACKLIGHT” is set to “DARK”.	21
			•	Check “CONTRAST”.	16
		The picture is	•	The fluorescent lamp may have reached the end of its service	–
		too dark.		life.
			•	Check if batteries in the remote control have sufficient power.	5
Remote control does not work.			•	Make sure the remote sensor window is not under strong	5
				lighting.
			•	External influences such as lightning, static electricity, etc., may	–
Unit cannot be operated.				cause improper operation. In this case, operate the unit after
				first turning the power off, or unplugging the AC cord and re-
				plugging it in after 1 or 2 minutes.

■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)

30