LG Electronics RU-48SZ40 owner manual Troubleshooting, Symptoms

Page 52

Troubleshooting

Some quick and easy tips to fixing problems yourself.

SYMPTOMS

POSSIBLE SOLUTIONS

 

Snowy picture and unclear sound.

Check your antenna connection or location.

Check your cable input.

Check to see if the TV/VCR button on your VCR has the TV selected.

Multiple images or ‘ghost shadows.’

• Check your antenna direction and/or location.

• Check your cable input.

 

 

• Make sure the cable from your antenna to your TV is

 

connected properly.

Interference: Sharp lines across the screen and unclear sound.

The following may cause image problems or distortion: Electrical appliances, powerful lights, cars, trucks; computers or portable phones; medical equipment

If possible increase the distance between your TV and the offending appliance or shut one of them off.

Normal picture but no sound.

Check sound level.

Make sure the TV sound is not muted.

Try another channel. The problem may be with the broadcast, not your TV.

Are the Audio cables connected properly?

Are the wires for external speakers (if you have external speakers) connected properly?

Make sure your speakers are turned on inthe Audio menu.

If your audio mode is set to SAP, that channel may not have an SAP program.

No picture and unclear sound.

Are you in TV or cable tuning mode, and should be in the other?

Make sure output channels on all A/V equipment are on the same channel (3 or 4).

Check that all connections are tight.

No picture and no sound.

Is the AC power cord plugged in?

Check that your AC power outlet works. (Test it by plugging in something else or try another outlet.)

Make sure your brightness and audio controls are set properly.

Try another channel. The problem may be with the broadcast.

No color, but the sound is O.K.

Check the color settings in the Video menu.

Try another channel. The problem may be with the broadcast.

Picture has a big black box on it, but the sound is O.K.

The Caption option may be in Text mode. Select Caption 1, or OFF in the Captions/Text menu.

Picture has two horizontal black bars, one on top and one on bottom.

Your program is in letterbox. This means that the shape of your TV is a square, but the program is a rectangle. Think of the bars as empty space the program doesn’t fill; not picture that’s blocked out. Because this format is a direct representation of film as you see it in the movies, you are actually seeing MORE of the program when you see those bars.

Missing Secret code

• If you forget the secret code, press the remote control Button ‘7’, ‘7’, ‘7’ and ‘7’

 

when the display asks you to enter the secret code.

P A G E 5 2

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Contents LCD Projection TV LG Electronics U.S.A., IncPower Cord Polarization Regulatory InformationImportant Safety Instructions On nextFrom previous NEC National Electrical CodeTable of Contents Setup ChecklistFunction Status Indicators Operation IndicatorLamp Indicator Temperature IndicatorConnecting cables and external equipment to your TV Rear Connections PanelFront Connection Panel CablesYour TV as shown ANT / Cable Service HookupTurn to page 22 to do a channel search Cable Box Connections Your cable box. Connect this toVCR Connections Back AV Panel DVD PlayerPB PR RGB/DVI-HD/STB Input RGB-PC/DVI-PC Input External Stereo Connections Speaker Connection Monitor Out Setup Remote Control Functions in TV Mode Power Volume UP/DOWNNumber Keypad EnterOn-Screen Displays If a channel label has been setEnter Same as Enter button on your remote control Front Panel ControlsEZ Scan Channel Search Ch. Edit Ch. Label Main Input Sub InputEZ Scan Channel Add / Del / Surf SetupCh. Label Main Input Sub Input Ch. Edit Channel Label SetupMain Input Sub Input EZ Scan Ch. Edit Ch. Label Main Picture Source SelectionAnt/Cable Video Front Video Component EZ Scan Ch. Edit Ch. Label Main Input PIP Picture-in-PictureAnt/Cable Video Front Video PIP Picture-in-Picture Operation Press the Exit button to exit POP modePOP Picture-outside-Picture Twin Picture Watching Twin PictureVideo Menu Options Off Daylight Normal Night Time Movie Video Game SportsContrast F 90 G EZ Sound Balance Treble Bass Front Surround TV Speaker Audio Menu OptionsOff Bass F 50 G Audio Menu Options ContdEZ Sound Chooses the sound options manually Auto Clock Setup Manual Clock Off Time On Time Sleep Timer Auto OffOff Time On Time Sleep Timer Auto Off Manual Clock SetupAuto Clock TV Turn Off Time Setup On Time Sleep Timer Auto OffAuto Clock Manual Clock Off OnSleep Timer Auto Off TV Turn On Time SetupAuto Clock Manual Clock Off Time Sleep Timer Setup Auto Clock Manual Clock Off Time On TimeAuto Clock Manual Clock Off Time On Time Sleep Timer Auto OffCaptions Caption/Text Language EZ Demo Aspect Ratio169 Horizon Zoom1 Zoom2 Captions Setup Aspect RatioCaption/Text Language EZ Demo Off EZ MuteCaption/Text Mode Selection Aspect Ratio CaptionsLanguage EZ Demo CC 2 CC 3 CC 4 Text 1 Text 2 Text 3 TextOn-Screen Menus Language Aspect Ratio Captions Caption/TextEnglish Español Français LanguageEZ Demo Menu Review Aspect Ratio Captions Caption/Text LanguageDemo, then press Enter or the Right Arrow button to activate EZ DemoLock System Set Password Block Ch Movie Rating Parental Lock SetupAux. Block Set Password Block Ch Movie Rating Parental Lock Setup ContdFollowing Lock Menu options Parental Lock Ratings Overview Press the corresponding Mode button VCR Programming the RemoteProgramming Code VCRs Programming Codes HdstbMaintenance Screen CleaningMaintenance Contd Picture InterferenceTroubleshooting SymptomsTroubleshooting Contd Is selected Source equipmentGlossary Glossary Contd Product Specifications G E 5 G E 5 Customer Assistance Numbers This Limited Warranty does not Apply to
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