LG Electronics DU-42PX12X/12XC, DU-50PX10/10C owner manual Troubleshooting Checklist

Page 45

Troubleshooting Checklist

Troubleshooting Checklist

No picture &

No sound

Picture OK &

No sound

The remote control

doesn’t work

Picture appears slowly

after switching on

No or poor color or poor picture

Horizontal/vertical bars

or picture shaking

No output from one of

the speakers

Unusual sound from

inside the TV

Check whether the TV is turned on.

Is the power cord inserted into wall power outlet?

Test the wall power outlet, plug another product’s power cord into the outlet where the TV’s power cord was plugged in.

Press the VOLUME (G) button.

Sound muted? Press MUTE button.

Check to see if there is any object between the TV and the remote control causing obstruction.

Are batteries installed with correct polarity (+ to +, - to -)? (Refer to p.9)

Correct remote operating mode set: TV, VCR etc.?

Install new batteries. (Refer to p.9)

This is normal, the image is muted during the TV startup process. Please contact your service center, if the picture has not appeared after five minutes.

Select Color in the Video menu and press the VOLUME (G) button. (Refer to p.21)

Keep a sufficient distance between the TV and the VCR.

Activate any function to restore the brightness of the picture.

(If still picture is on the screen for more than 5 minutes, the screen gets dark.)

Check for local interference such as an electrical appliance or power tool.

Adjust Balance in the AUDIO menu. (Refer to p.23)

A change in ambient humidity or temperature may result in an unusual noise when the plasma display is turned on or off and does not indicate a fault with the TV.

Owner’s Manual 45

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Contents LG Electronics U.S.A., Inc Plasma TVClass B digital device FCC NoticeImportant Safety Instructions Safety InstructionsSafety Instructions Contents Introduction Front Panel Controls ControlsConnection Options Remote Control Key Functions Number buttonsThumbstick Up/Down/Left/Right/OK Attaching the TV assembly to the wall InstallationRemote Control TV bracketsInstallation Instructions To Install on a DesktopTo Mount on a Wall Analog and DTV signals provided on two separate antennas Analog and Digital TV signals provided on one antennaRF Coaxial Wire 75 ohm External Equipment ConnectionsCable TV Setup VCR SetupConnection Option Cable BoxHow to connect External A/V Source SetupHow to use Monitor Out SetupHdstb Setup Digital Audio OutputDigital Set-top Box Monitor Display Specifications RGB-PC / DVI-PC Mode PC SetupResolution Horizontal Vertical FrequencyKHz FrequencyHz 1024x768Adjustment for screen Position, Clock, and Phase Screen Setup for PC modeInitializing Reset to original factory values OperationTurning on the TV power cord is still connected Turning on the TV just after installationTurning the TV On On-screen Menus Language SelectionSetup Menu Options EZ Scan Channel SearchChannel Edit DTV Signal Strength Channel Label SetupMain Picture Source Selection Video Preset Color Temperature ControlVideo Menu Options EZ PictureAudio Language Audio Menu OptionsEZ SoundRite EZ SoundStereo/SAP Broadcasts Setup Manual Sound Control Off optionFront Surround TV Speakers On/Off Setup Press the G button and then use D / E button to select BBEReturn to the previous menu Manual Clock Setup Auto Clock SetupOn/Off Timer Setup For only On timer functionAuto Off Sleep TimerAspect Ratio Control Option Menu FeaturesCaption Caption ModeAnalog Broadcasting System Captions Digital Broadcasting System CaptionsCinema Mode Setup Caption OptionDemo Low Power Split Zoom DTV 720p, or 1080i mode onlyISM Image Sticking Minimization Method Chip rating and categories Lock Menu OptionsTV Rating Children TV Rating GeneralParental Lock Setup PIP Picture-In-Picture / POP / Twin Picture Selecting an Input Signal Source for PIP/Twin PictureWatching PIP/POP/Twin Picture Swapping the PIP/Twin PictureMoving the PIP sub picture Adjusting Main and Sub Picture Sizes for Twin PicturePOP Picture-out-of-Picture Channel Scan Part at both the upRS-232C Setup External Control Device SetupType of Connector D-Sub 9-Pin Male RS-232C ConfigurationsSet ID Command Reference ListCommunication Parameters Transmission / Receiving ProtocolInput Select Command2b Main Picture Input Power Command2aAspect Ratio Command2c Main picture format Screen Mute Command2dTint Command2j Color Command2iSharpness Command2k OSD Select Command2lPIP Input Select Command2y Color Temperature Command2uISM Method Command2p White Wash Command2qHow to Connect Remote Control IR CodesIR Codes Code Hexa Function Programming a code into a remote mode Test your remote controlProgramming the Remote VCRs Programming CodesAudio HdstbTroubleshooting Checklist Cleaning the Screen Cleaning the CabinetExtended Absence LG ELECTRONICS, INC Plasma TV U.S. Limited Warranty No 3828VA0479D d This Limited Warranty does not Apply to