Sharp LC-20B2UA operation manual Troubleshooting, TV set

TROUBLESHOOTING

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

TV set

	Problem			Check item	Reference
					Pages
			•	Make sure the AC adapter is properly inserted in the	9
	Picture			power outlet.
Sound		There is no	•	Reception other than those of broadcasting stations
		picture or		can be considered.	15
		sound.	•	Make sure the input mode is set to TV.
			•	Make sure the main power switch of the main unit is	15
				on.
		There is no	•	Make sure the BLACK LEVEL is properly adjusted.	22, 23
	Picture		•	Fluorescent lamp may have reached the end of	–
		picture.
				service life.
		There is no			36
			•	Make sure the S-Video terminal is free of connections.
		picture from
		AV-IN 1.
			•	Make sure the volume is not set to minimum.	16
		There is no	•	Make sure the sound is not set to mute.	16
			•	Make sure that headphones are not connected.	13
		sound.
		There is no	•	Make sure the antenna cable is properly connected.	9
			•	Consider whether TV signals are being properly	–
		picture or		received.
		sound, just
		noise.
			•	Make sure the antenna cable is properly connected.	9
		Picture is not	•	Consider whether TV signals are being properly	–
				received.
		clear.
			•	Check color adjustment.	22, 23
		Picture is light	•	Check color system setting.
		or improperly
		tinted.
			•	Press the Brightness button.	22, 23
		The picture is	•	Check PICTURE and BLACK LEVEL adjustment.
			•	Fluorescent lamp may have reached the end of	40
		too dark.		service life.
			•	Check the batteries of the remote controller.	8
Remote control does not work.			•	Make sure the remote sensor window is not under	8
				strong fluorescent lighting.

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