Sharp LC 20B2U Troubleshooting, Problem Check item, Make sure the AC adapter is properly inserted

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TROUBLESHOOTING

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

TV set

	Problem			Check item	Reference
	Problem			Check item	Pages
					Pages
			•	Make sure the AC adapter is properly inserted in the	9
	Picture			power outlet.
Sound	Picture	There is no	•	Reception other than those of broadcasting stations
		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.	15
			•	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	There is no	•	Fluorescent lamp may have reached the end of	–
	Picture	picture.	•	Fluorescent lamp may have reached the end of	–
		picture.		service life.
		There is no		service life.	36
		There is no	•	Make sure the S-Video terminal is free of connections.
		picture from	•	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
		There is no	•	Make sure that headphones are not connected.	13
		sound.
		There is no	•	Make sure the antenna cable is properly connected.	9
		There is no	•	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	–
		Picture is not		received.
		clear.
			•	Check color adjustment.	22, 23

•Check color system setting.

Picture is light or improperly tinted.

	•	Press the Brightness button.
The picture is	•	Check PICTURE and BLACK LEVEL adjustment.	22, 23
The picture is	•	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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LC-20B2U-GBpp19-42

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Contents 20B2UCoverNOM LC-20B2ULC-20B2U A. only Important InformationDear Sharp Customer Important Safety PrecautionsImportant Safety Precautions Service Equipment Grounding Conductors Contents Supplied Accessories AC Adapter Size AAA Dry Battery ⋅2 Cable Clamp ⋅2Antenna Cable AC Cord Using the Remote Control Batteries for the Remote ControlPreparation Power Connection PreparationAntenna Connection Antennas Menu TV/VIDEO Main Power Front and Rear Control OptionsMain unit front view Main unit rear view Front and Rear Control OptionsRemoving the Back Cover Listening with HeadphonesBasic Operation Remote ControlBasic Operation Turning on PowerSwitching TV/VIDEO AV1/AV2/COMPONENT/TV Modes PowerON/OFF Standby Sound VolumeChannel Changing channels with CH / on the remote controlChanging the Channels Press the button Press the 5 buttonSelecting Menu Items Selecting Menu ItemsMenu Setting the Sleep Timer on the Menu screen AdjustmentAdjusting the Sleep Timer Settings Directly setting the Sleep TimerBright Adjusting the Brightness SettingsDirectly setting the Brightness Setting the Brightness on the Menu screenPress / to enter Adjusting the Language SettingsScreen Press / to move the cursor toAdjustment Adjusting the Video Adjust SettingsVideo Adjust Black Level PictureTint ColorPress Menu to display the Menu screen Adjusting the Preset SettingsPreset ABCChannel Setting SET UPCH-SETTING SET UP Saving broadcast TV channels in the memorySelect Adjusting the Blue Screen Settings Blue ScreenPress / to enter Press / to move the cursor to Blue Screen Setting Closed Caption Adjusting the Closed Caption SettingsMpaa Rating examples Adjusting the V-CHIP SettingsChip Mpaa RatingTV Parental Guidelines examples TV Parental GuidelinesTo enter Setting V-CHIP Mpaa RatingPress / to move the cursor To V-CHIP BLOCK, and pressTV Guidelines Setting MpaaSetting Block Content TV GuidelinesActivate on to Turn on V-CHIP Block Press Menu to register the secret numberChannel Select Select Displayed. Set V-CHIP Block Changing the V-CHIP Block SettingsChanging or Clearing the Secret Number Input the 4-digit secret number byConnecting with External Devices Example of external devices that can be connectedVCR VCR Connecting with External DevicesOutputting video and audio video output How to fix the cablesMake sure the AC adapter is properly inserted TroubleshootingProblem Check item Power outletAntenna TroubleshootingItems Model LC-20B2U SpecificationsUnit inch/mm Dimensional DrawingsSharp Electronics Corporation