Toshiba Troubleshooting Issues for 40L1400UC TV
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Chapter 8

Troubleshooting

General troubleshooting

Before calling a service technician, review this chapter or visit the Toshiba technical support Web site at support.toshiba.ca (for L1400UC model) for possible causes/solutions for the problem you are experiencing.

Before you begin to troubleshoot any problem, first unplug the TV from the AC wall outlet, wait approximately one minute, and then plug the TV back into the AC wall outlet. If the problem still exists attempt to troubleshoot the problem.

Black box on-screen.

The closed caption feature is set to one of the Text modes (T1, T2, T3, or T4). Set the closed caption feature to Off, see “Using closed captions” on page 69.

TV stops responding to controls.

If the TV stops responding to the buttons on the remote control or TV control panel and you cannot turn off the TV, unplug the TV from the AC wall outlet and plug it back in.

If you cause a static discharge when touching the TV and the TV fails to function, simply unplug the TV from the AC outlet and plug it back in. The TV should return to normal operation.

Other problems.

If your TV’s problem is not addressed in this Troubleshooting section or the recommended solution has not worked, use the Reset

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Contents IntegratedHighDefinition LEDTelevisionUser’sGuide Safety Precautions Child Safety Important Safety Instructions Care Choosing a location for your LED TV 23 TV Important notes about your TV Trademark Information Contents Using the Remote Control Setting up your TVMenu Layout and Navigation Tuning to the next programmed channel Using the Auto Aspect featureUsing the Freeze feature Adjusting the picture Using closed captionsUsing the TV’s Advanced Features Troubleshooting General troubleshooting If the problem persists after trying the solutionsAppendix a Specifications Power sourceAppendix B Index Safety icons IntroductionFeatures Overview of installation, setup, and use Read Important notes about your TV onTV front and side panel controls and connections Introduction TV back panel connections Sample Illustration 23L1400UC Back panel connectionsSample Illustration 32L1400UC Back panel connections Sample Illustration 40/50L1400UC Back panel connections Introduction Overview of cable types Coaxial F-type cableSample Illustration Coaxial cable Standard A/V cables red/white/yellow Component video cables red/green/blueHdmi cable with Hdmi Logo Optical audio cable About the connection illustrationsHdmi cables provide the best audio and picture quality Sample Illustration Optical audio cableTo view the antenna or cable signal Stereo VCR Connecting an Hdmi or DVI device to the Hdmi input To view the Hdmi device video To ensure that the Hdmi or DVI device is reset properly Hdmi CEC connectionCable with the Hdmi Logo Connecting a digital audio system Connecting a computer When an Hdmi input is usedConnection to the TV’s Hdmi terminal Computer Installing batteries Sample Illustration Installing the batteriesSample Illustration Removing the remote back cover Remote control effective range Remote control effective rangeUsing the Remote Control Learning about the remote control Learning about the remote controlSample Illustration Remote control overview Learning about the remote control Learning about the remote control Picture Picture Mode ResetDisplay Settings Opens the Display Settings menu StoreSetup Hdmi CEC Player Power ManagementOn / Off Parental PIN Setup Maximum of 12 hours Game TimerNavigating the menu system Sample Image Navigating the menu systemSetting up your TV Initial SetupInstallation setup selection Sample Image Installation Setup selectionMenu language Sample Image Selecting the menu languageAuto Tuning Auto TuningStoring channels in memory optional Sample Image Setup menu Installation selection Sample Image Installation menu Channel selectionManual Tuning Setting channel skipSetting channel skip Analog channelSetting the AV input mode Setting the time zoneSetting the time zone Resetting Factory Defaults Viewing the system statusViewing the system status Chapter Sample Illustration Hdmi setting pop-up window Selecting the video input sourceSample Image Input Selection screen Labeling the video input sources Labeling the video input sourcesSample Image Input Labeling screen Tuning channels using the Channel Browser Tuning channels using the Channel BrowserSample Image Input selection screens Favorites browser Favorites browserElements of the Channel Browser Sample Illustration Channel Browser elementsFavorites browser Tuning to the next programmed channel Adding and clearing channels and inputs in the History ListSwitching between two channels using Channel Return Switching between two channels using SurfLockSelecting the picture size Selecting the picture sizeFull TheaterWideSample Illustration Picture size Full Sample Illustration Picture size TheaterWideNative Sample Illustration Picture size NativeNormal Dot by DotSample Illustration Picture size Sample Illustration Picture size NormalUsing the Auto Aspect feature Using theAutoAspect featureSample Image Picture menu Theater Settings selection Using the 43 Stretch Using the Freeze featureUsing the Freeze feature Adjusting the picture Adjusting the pictureAdjusting the picture quality Sample Image Picture menu Mode selectionUsing closed captions Using closed captionsBase closed captions Sample Illustration Viewing captionsDigital CC settings These settings are available for digital channels onlySample Illustration Captions text Adjusting the audio Adjusting the audioMuting the sound Using the Digital Audio Selection Selecting stereo/SAP broadcastsSample Image Sound menu Digital Audio Selector selection Adjusting the audio quality If the sound is noisy, select Mono to reduce the noiseSound Mode Using the Dolby Digital Dynamic Range Control featureDTS TruSurround Stable SoundTMUsing the input lock feature Selecting the PIN codeEnter a new PIN code Forgotten PIN codeLocking channels Locking channelsUsing the GameTimerTM Using the panel lock featureUsing the Media Player Using Media Player with a USB deviceUsing the Media Player Sample Illustration Locks menu Panel Lock selectionAuto Start function To open the Media PlayerNon-supported characters will be replaced with a square Viewing photo files Sample Image Media Player open screenSample Image Media Play screen Multi View Single viewSample Image Media Play photos screen Zoom and Picture size functions are disabled Slide showPlaying music files Sample Image Media Play music listViewing photo files and playing music files at the same time Setting the sleep timer Setting the sleep timerSorting photo or music files No Signal Power Down No Signal Power DownDefault setting for this feature is On Using Hdmi CEC Available remote control key functionsUsing Hdmi CEC Hdmi CEC Player Control menu functionsVolume and Mute controls of Audio Receiver Hdmi CEC input source selectionSample Image Preferences menu Hdmi CEC Player Control Hdmi CEC Player Control menu disappearsSetting up Hdmi CEC Other Hdmi CEC functionsUsing the Hdmi settings feature Using the Hdmi settings featureHdmi 1or 2 RGB Range Hdmi Information DisplayDisplaying TV status information Displaying TVstatus informationUnderstanding the last mode memory feature Understanding the last mode memory featureSample Illustration Info banner Using the TV’s Advanced Features Base Color AdjustmentColor Temperature Using the advanced picture settingsStatic Gamma Cool Blueish Medium Neutral Warm ReddishCinema Mode DynaLightTMDynamic Contrast Noise ReductionDNR Edge EnhancerTroubleshooting General troubleshootingPicture problems Picture problemsSound problems Sound problemsRemote control problems Channel tuning problemsChannel tuning problems Closed caption problems Hdmi problemsHdmi problems No Hdmi CEC operationMedia Player problems If the problem persists after trying the solutionsIf the problem persists after trying the solutions Specifications These models comply with the specifications listed belowPower source Speaker typeDimensions with stand Weight / mass with standDimensions with stand ColorStreamTM component video HD inputSupplied accessories Hdmi signal formatsSupplied accessories Operating conditions1080p 27.000 kHz 74.250 MHz67.500 kHz 148.500 MHz Using closed captions 66 Auto Aspect usingChoosing a location for your To Display your LED TV onCinema Mode Noise Reduction TheaterWide 3 61, 65 HDMI-CEC usingDynaLightTM About the connection illustrationsSetting pin code Media Player Playing music files Menu Using the Hdmi settings feature Hdmi 1or 2 RGB RangePicture Adjusting quality 67 Picture size Resetting Factory Defaults Safety Icons Safety PrecautionsUsing the Freeze feature 60, 62 Setting channel skip Sorting photo or music files 79, 81 Sound Mode Stable SoundSound problems 95 RayTM/DVD player, etc. controlUsing Media Player with a USB device Installing batteriesColorMaster Base Color Adjustment Labeling
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