LG Electronics 55LA9700 owner manual Maintenance, Troubleshooting, Cleaning Your TV, Power cord

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40MAINTENANCE / TROUBLESHOOTING

MAINTENANCE

Cleaning Your TV

Clean your TV regularly to keep it at peak performance and to extend the product lifespan.

CAUTION

yyBefore cleaning, turn the power off and disconnect the power cord and all other cables.

yyWhen the TV is left unattended or unused for a long time, disconnect the power cord from the wall outlet to prevent possible damage from lightning or power surges.

Screen, frame, cabinet and stand

To remove dust or light dirt, wipe the surface with a dry, clean, and soft cloth.

To remove major dirt, wipe the surface with a soft cloth dampened in clean water or a diluted mild detergent. Then wipe immediately with a dry cloth.

CAUTION

yyDo not push, rub, or hit the surface with your fingernail or a sharp object, as this may result in scratches on the screen and image distortions.

yyDo not use any chemicals, such as waxes, benzene, alcohol, thinners, insecticides, air fresheners, or lubricants, as these may damage the screen’s finish and cause discoloration.

yyDo not spray liquid onto the surface. If water enters the TV, it may result in fire, electric shock, or malfunction.

Power cord

Remove the accumulated dust or dirt on the power cord regularly.

TROUBLESHOOTING

	Problem	Solution

	Cannot control the TV with	yyCheck the remote control sensor on the product and try again.
	Cannot control the TV with	yyCheck if there is any obstacle between the product and the remote control.
	the remote control.	yyCheck if the batteries are still working and properly installed ( to ,	to ).
			to ).

	No image display and no	yyCheck if the product is turned on.
	No image display and no	yyCheck if the power cord is connected to a wall outlet.
	sound is produced.	yyCheck if the power cord is connected to a wall outlet.
	sound is produced.	yyCheck if there is a problem in the wall outlet by connecting other products.


		yyCheck the power control settings. The power supply may be interrupted.
	The TV turns off suddenly.	yyCheck if the Auto sleep feature is activated in the Time settings.
		yyIf there is no signal while the TV is on, the TV will turn off automatically after 15
		minutes of inactivity.

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Contents LED TV Important Safety Instructions EnglishNot touch the end of the power cord while it is plugged YyCleaning YyDisconnecting the Main PowerYyOutdoor Antenna Grounding YyMovingYyGenerated Sound Preventing Image burn or Burn-in on your TV screenFor USA and Canada Viewing 3D Imaging Viewing EnvironmentThose that have a photosensitive seizure or chronic illness Viewing AgeLicenses Open Source Software NoticeTable of Contents Assembling and Preparing UnpackingComponent Video Cable Tag On Wall Mount Inner SpacersCinema 3D Glasses Optional Extras AN-MR400 AG-FParts and Buttons Button DescriptionLifting and moving the TV Setting up the TV Attaching the standMounting on a table Leave a 10 cm4 inches minimumUsing Sliding Speaker Tidying cablesMounting on a wall ModelOptional Wall mount bracket optional OptionalWall Mount Inner Spacer Using Built-in Camera Preparing Built-in CameraRange Checking the Camera’s ShootingName of Parts for the Built-In Camera Connecting to an Antenna or Cable Making ConnectionsConnecting to a HD receiver, DVD Player or VCR Hdmi ConnectionHdmi is the best way to connect a device ARC Audio Return ChannelDVI to Hdmi Connection Connecting to a mobile phone Component Connection Not ProvidedComposite Connection Hdmi Connection or DVI to Hdmi Connection Connecting a PCChoose method a or B to make connection Method B DVI to Hdmi Connection Connecting to an Audio System Digital Optical Audio ConnectionConnecting Headphones Connecting a USB Device Voice recognition VOL CHWheel OK Selects menus or options Back Returns to the previous level Pointer RF transmitterRegistering Magic Remote Control How to use Magic Remote ControlPrecautions to Take when Using the Magic Remote Control How to register the Magic Remote ControlWatching TV Turning the TV on for the First TimeUsing the User GUIdE Specifications Component supported mode Hdmi DTV supported modeComponent port connecting information 3D supported mode HdmiPhoto 3D supported mode manuallyWiDi Maintenance TroubleshootingCleaning Your TV Power cordPage Page Child Safety LG Customer Information Center External Control Device Setup This feature is not available for all models Volume + Button ListVolume Button Exit Power Button GreenExternal Control Device Setup USB TypeSerial port RS-232CSub Communication Parameters Space Ascii code ‘0x20’ Carriage Return Ascii code ‘0x0D’Set ID C8 Step 0F Step Volume Mute Command k e Aspect Ratio Command k c Main Picture SizeVolume Control Command k f Contrast Command k gTint Command k j ColorColour Temperature Command x uSharpness Command k k OSD Select Command k lColombia Model For South Korea, North/Latin America exceptFor Japan Model ChannelProgramme Add/DelSkip Command m b Control Back Light Command m gControl Panel Light Command m g For Plasma TV Input select Command x b Main Picture InputExtended 3DCommand x v only 3D models Depending on model DCommand x t only 3D models Depending on modelDon’t care