LG Electronics 42LD450, 32LD350, 47LD450 Troubleshooting, 116, No picture &No sound, Appendix

Page 116
*This feature is not available for all models.

APPENDIX

TROUBLESHOOTING

The operation does not work normally.

The remote control

doesn’t work

Power is suddenly

turned off

The video does not work.

No picture &No sound

Check to see if there is any object between the product and the remote control causing obstruction. Ensure you are pointing the remote control directly at the TV.

Ensure that the batteries are installed with correct polarity (+ to +, - to -). Ensure that the correct remote operating mode is set: TV, VCR etc.

Install new batteries.

Is the sleep timer set?

Check the power control settings. Power interrupted.

TV will be automatically turned off, in case of no signal for 15 minutes.

Check whether the product is turned on.

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

Is the power cord inserted into wall power outlet?

Check your antenna direction and/or location.

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

APPENDIX

Picture appears slowly

after switching on

No or poor color

or poor picture

Horizontal/vertical bars

or picture shaking

Poor reception on

some channels

Lines or streaks

in pictures

No picture

when connecting HDMI

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

Adjust Color in menu option.

Keep a sufficient distance between the product and the VCR.

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

Are the video cables installed properly?

Activate any function to restore the brightness of the picture.

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

Station or cable product experiencing problems, tune to another station.

Station signal is weak, reorient antenna to receive weaker station.

Check for sources of possible interference.

Check antenna (Change the direction of the antenna).

Check HDMI cable over version 1.3.

The HDMI cables don’t support HDMI version 1.3, it cause flickers or no screen display. In this case use the latest cables that support HDMI version 1.3.

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Contents LCD TV FCC Notice Safety Instructions Important Safety InstructionsSignal cables on the back of the TV SwitchThunder or lighting storm Screen with somethingNormal, there is nothing wrong with TV AntennasOutdoor antenna grounding Contents External Control Through RS-232C Auto Volume Leveler Auto VolumeClock Setting Feature of this TV BURN-IN on Your TV ScreenAccessories PreparationPolishing Cloth Sub 15 pin CableVolume Front Panel InformationSpeaker ChannelVolume + Buttons 32/37/42/47LD450Back Panel Information 26LD35032LD350 32/37/42/47LD450 RGB in PC Audio in RGB/DVIOptical Digital Audio OUT Preparation ANTENNA/CABLEStand Instructions For 19/22LD350 Back of the TV Insert the Protection Cover into the TVProtection Cover Stand Instructions For 26/32LD350 Stand Body Cover BaseDetachment Stand Instructions For 32/37/42/47LD450 Detachment RW120 26LD350 RW230 200 32LD350 32LD450 RW230 AW-47LG30M Vesa Wall Mounting100 Cable Management For 19/22LD350For 26/32LD350, 32/37/42/47LD450 Connect the cables as necessaryPositioning Your Display For 19/22LD350 Desktop Pedestal Installation Attaching the TV to a Desk Except 19/22LD350 Kensington Security SystemPreparation Antenna or Cable Connection Antenna Analog or DigitalHD Receiver Setup How to connectHow to use External Equipment SetupExternal Equipment Setup HDMI-DTV Hdmi ConnectionExternal Equipment Setup DVI to Hdmi ConnectionDVD Setup SetupExternal EquipmentComposite RCA Connection = white, and Audio Right = redConnect the Hdmi output of the DVD to HDMI/DVI in or HDMI/DVI in 1/2 jack onVCR Setup Antenna ConnectionInsert a video tape into the VCR and press Play on Other A/V Source Setup After connecting the USB I N jack, you use the USBConnect the USB device to the USB I N jack on the side Function. G p.66Headphone Setup Audio OUT ConnectionConnect one end of the optical cable to the TV port You can listen to the sound through the headphonePC Setup VGA D-Sub 15 pin ConnectionHow to use Supported Display Specifications RGB-PC, HDMI-PC Screen Setup for PC mode Selecting ResolutionSelect Yes Auto ConfigureCan adjust the Position, S i z e or Phase Adjustment for screen Position, Size, and Phase Screen Reset Reset to original factory values Enter Select ResetRemote Control Functions Installing Batteries Watching TV / Channel ControlChannel Selection Volume AdjustmentTurning on the TV Initial Setting Time settingSelecting Language Channel ControlON-SCREEN Menus Selection TV / Channel ControlFor USA Menu Display each menu32LD350, 32/37/42/47LD450 For USAFor Canada Menu Display each menuUSB Device Select Eject in order to eject a USB device Quick MenuLight Channel Setup Auto Scan Auto TuningWatching TV / Channel ControlAdd/Delete Channel Manual Tuning Back Return to the previous menuChannel Editing Blue Add or delete a channelChannel List Displaying Channel ListSelecting a channel in the channel list Paging through a channel listFavorite Channel Setup Menu Select Del/Add/Fav Select FavoriteFavorite Channel List Displaying the favorite channel listPaging through a favorite channel list Watching TVBrief Information Brief Info shows the present screen informationShow the Brief Info on the screen Return to TV viewing WatchingInput List With using Option menu With using Input button Input LabelSimple Manual AV ModeAV Mode toggles through preset Video and Audio settings KEY Lock Menu Select Option‘ ! Key Lock’ appears on the screen if Return to TV viewing While viewing the TVReturn to TV viewing Simplink Functions Simplink MenuDisplay Simplink menu Selected DevicePrecautions when using the USB device Entry ModesUSB This TV supports JPG and MP3 filesPhoto List Screen ComponentsTos in the folder in a slide show Photo Selection and Popup MenuPhoto Use the Mark button to mark or unmark a Full Screen Menu Select the Slideshow, BGM Music List Select USB Select Music ListMusic Selection and Popup Menu Use the CH button to navigation in the musicUSB Picture Size Aspect Ratio Control PictureOr button Move the image on the screen When adjusting in Q.MENU menu169 Adjust Picture Wizard Picture WizardWizard SharpnessFinish the Picture Wizard Picture ControlSave Preset Picture Settings Picture Mode Manual Picture Adjustment User Mode Picture Improvement Technology Medium GExpert Picture Control PictureThis feature is not available for all models Color Gamut Wide Increase number of colors used OPCEnergy Saving Picture Reset Initialize the adjusted valuePower Indicator Except 19/22LD350 Adjust the power/standby indicator light of TV frontDemo Mode Auto Volume Leveler Auto Volume Sound & Language ControlAdjustment for Clear Voice Level With selecting O n Clear VoiceMenu Select Audio Select Clear VoicePreset Sound Settings Sound Mode Sound & Language ControlSound Setting Adjustment User Mode Balance TV Speakers ON/OFF Setup Audio Reset STEREO/SAP Broadcast Setup Analog TVSound Language ControlAudio Language Sound & Language ON-SCREEN Menus Language SelectionMenus can be shown on the screen in the selected language Caption Mode Analog Broadcasting System CaptionsCaption TextDigital Broadcasting System Captions Caption Option 100Clock Setting Auto Clock SetupTime Setting 101Manual Clock Setup 102Auto ON/OFF Time Setting Setting103 Time104 Sleep Timer SettingSleep Time turns the TV off at the preset time SET Password & Lock System Setting up Your PasswordChip rating and categories 105When you select O n, the Lock System is enable Lock System106 Parental Control / Rating107 Set PasswordChange the password by inputting a new password twice If a channel is locked, enter the pass Channel Blocking108 Movie & TV Rating Movie Rating Mpaa For USA109 Parental ControlSelect Lock Age applies to TV-Y, TV-Y7 TV Rating Children For USA110 TV Rating General For USA 111Select TV Rating-General Select Age, Dialogue, LanguageSelecting Canadian English rating system TV Rating English For Canada112 TV Rating French For Canada 113Downloadable Rating 114115 Enables you to block an inputExternal Input Blocking Troubleshooting Remote control Doesn’t work Power is suddenly Turned off116 No picture &No soundVertical bar or stripe on Background 117Picture OK & No sound No output from one Speakers Maintenance Cleaning the ScreenCleaning the Cabinet Extended AbsenceProduct Specifications 119Depth Weight With stand Without stand 120IR Codes 121RS-232C Setup External Control Through RS-232CCommunication Parameters 122RXD TXD GND DTR DSR RTS CTS RS-232C Configurations123 124 Command Reference ListTransmission / Receiving Protocol 125 Set ID OK/NGDatax126 Data 00 OSD off Data 01 OSD on127 Step128 Version 2, June129 No Warranty 130131 END of Terms and ConditionsGNU Lesser General Public License 132133 134 135 How to apply these terms to your new libraries 136Mozilla Public License 137138 Distribution Obligations Application of license139 RepresentationsDisclaimer of Warranty 140141 Miscellaneous
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26LD350, 42LD450, 42LD420, 47LD420, 32LD450 specifications

LG Electronics has long been a leader in the television market, and their models 47LD450, 42LD450, 22LD350, 32LD350, and 47LD420 showcase the brand’s commitment to delivering quality and innovation.

The LG LD450 series, particularly the 47LD450 and 42LD450, feature Full HD 1080p resolution, providing crystal-clear images with stunning detail. The LED-backlit technology enhances brightness and contrast, delivering deeper blacks and vibrant colors. These models come equipped with LG's Intelligent Sensor technology, which automatically adjusts picture settings based on ambient light, ensuring optimal viewing conditions whether it’s day or night.

Additionally, both the 47LD450 and 42LD450 support 120Hz refresh rate, which greatly reduces motion blur during fast-moving scenes, making them ideal for watching sports or action-packed movies. The models are also designed with a sleek, modern aesthetic, featuring a slim bezel that enhances the viewer’s immersion in the content.

The 32LD350 and 22LD350 models are perfect for smaller spaces, delivering high-quality performance without compromising on features. Both models boast a 720p resolution, ensuring good picture quality for everyday viewing. The 32LD350 has a larger screen ideal for a bedroom or office, while the 22LD350 is compact enough for kitchens or small rooms.

All these models incorporate LG’s EZ Adjustable Stand, allowing users to easily tilt their screens for the best viewing angle. Furthermore, they come equipped with USB connectivity options, enabling viewers to play their favorite media files directly from flash drives, enhancing the user experience.

The 47LD420 model combines the strengths of its counterparts, featuring a stylish design, alongside 1080p resolution and LED backlighting. With built-in Dolby Digital audio technology, it delivers clear and dynamic sound to complement its stunning visuals.

These televisions also include multiple HDMI ports, providing ample connectivity options for external devices. The combination of design, technology, and functionality evident in the LG Electronics LD450 and LD350 series reflects the company's commitment to creating exceptional viewing experiences. Whether it's gaming, streaming, or watching movies, these models ensure satisfaction and enjoyment for all users.