Toshiba 56HM66, 50HM66 manual Troubleshooting, General troubleshooting

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HM66_EN.book Page 44 Thursday, February 23, 2006 2:49 PM

Chapter 7: Troubleshooting

General troubleshooting

Before calling a service technician, please check this entire chapter for a possible cause of the problem and some solutions you can try.

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 (- page 31).

TV plays a recorded anouncement when LEDs are blinking

•When certain non-standard conditions occur, the LEDs on the TV will blink and the TV will play a recorded “voice announcement” describing the condition (see “LED indications” on page 46 for details).

TV stops responding to controls

•If the TV stops responding to the controls on the remote control or TV control panel and you cannot turn off the TV, press and hold the POWER button on the TV control panel for 5 or more seconds to reset the TV.

Other problems

•If your TV’s problem is not addressed in this Troubleshooting section or the recommended solution has not worked, use the Restore Factory Defaults procedure (- page 22).

TV will not turn on

•Make sure the power cord is plugged in, and then press p.

•The remote control batteries may be dead. Replace the batteries or try the control panel buttons.

•If you have recently replaced the lamp unit, make sure the lamp unit and lamp unit door are installed properly (- pages 47–49).

•The lamp unit may need to be replaced (-pages 47–49). Also see “LED indications” (- page 46).

•If the TV is powered off and then quickly on again when the lamp unit is hot, it may take several minutes for the picture to appear on-screen. This is a property of DLP TV lamp technology and is NOT a sign of malfunction. For details, see IMPORTANT NOTICE ABOUT “HOT LAMP RESTART” (- page 2).

Picture problems

General picture problems

•Check the antenna/cable connections (- Installation Guide).

•Press +on the remote control or INPUT on the TV control panel and select a valid video input source (- page 23). If no device is connected to any of the inputs on the TV, no picture will display when you select that particular input source. For device connection details, see the Installation Guide.

•Antenna reception may be poor. Use a highly directional outdoor antenna (if applicable).

•The station may have broadcast difficulties. Try another channel.

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•Adjust the picture qualities (- page 30).

•If you are using a VCR, make sure Lon the remote control is set correctly (- page 9).

•If you have two VCRs connected to your TV, make sure you have not connected the same VCR to the TV’s output and input connections at the same time (- Installation Guide).

•Do not connect both a standard video cable and an S- video cable to the same set of VIDEO inputs (VIDEO 1, or VIDEO 2) at the same time (- Installation Guide).

Noisy picture

•If you are watching a tuned analog channel (off-air broadcast or Cable TV), set the CableClear®/DNR feature to AUTO to reduce visible interference in the TV picture (- page 41).

Video Input Selection problems

•If the Input Selection window does not appear when you press +on the remote control or INPUT on the TV control panel, press +a second time, which will change to the next video input source and display the Input Selection window.

Cannot view external signals or channel 3 or 4

•If you cannot view signals from external devices connected to VIDEO 1, VIDEO 2, or ColorStream®, or from channels 3 or 4, make sure the Input Lock is set to Off (- page 38).

Poor color or no color

•The station may have broadcast difficulties. Try another channel.

•Adjust the Tint and/or Color (- page 30).

•When the ColorStream® signal source is active, the VIDEO OUT terminal outputs blank video. To receive video from the VIDEO OUT signal, a standard video or S-video IN terminal must be used instead of the ColorStream® connections.

Picture brightness changes soon after turning on TV

•If you set the lamp mode to Low Power, each time you turn on the TV, the lamp will start out in High Bright mode but will switch to Low Power mode after a short period of time. You may notice a change in screen brightness when this happens. This is normal and is not a sign of malfunction (- page 42).

Poor composite or S-video picture

•If the TV is connected to an external A/V device (e.g., DVD player, video game system, set-top box, etc.) try using a ColorStream or HDMI video connection instead.

Picture and sound are out of sync

•As with all products that contain a digital display, in rare instances, when viewing certain content (e.g.. television broadcasts, video games, DVDs), you may notice that the sound and picture are slightly out of sync. This phenomenon can be caused by various factors including, without limitation, video processing within the TV, video processing in an attached gaming system, and video processing or different compression rates used by broadcasters in their programming. You may want to try one or more of the following suggestions, which may help to reduce the effect of this phenomenon:

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Contents 50HM66 56HM66 Voice announce feature Welcome to ToshibaTrademark Information Television Stand Model 50HM66 ST5066 56HM66 ST5666Contents Features of your new TV IntroductionTV front and side panel controls and connections Control panelBlue, Yellow and Green/Red LEDs ColorStream HD-1, ColorStream HD-2, Hdmi 1, Hdmi 2, ANTTV back panel connections ColorStream HD-1 and ColorStream HD-2Using the remote control Preparing the remote control for useInstalling the remote control batteries Remote control effective rangeLearning about the remote control TheaterWide 1/2/3, and FullCH Bb Using the remote control to control your other devicesTo use your TV remote control to operate a Remote Control functional key chart VCR DVDProgramming the remote control to control your other devices Cable converter box Satellite receiverTV/VCR Combo DVD/VCR ComboHtib Icon Option Menu layout and navigationMain menu layout Setup/Installation menu layout Setup menuInstallation Navigating the menu systemSetting up your TV To configure the ANT 1 and ANT 2 input sourcesSelecting the menu language To select the menu languageProgramming channels automatically Manually adding and deleting channels in the channel memoryTo program channels automatically To add or delete channels in the channel memoryProgramming your favorite ChannelsTo tune your favorite channels for the current ANT input To program favorite channels for another inputTo clear your favorite channel lists Setting the ColorStream HD audio mode Setting the Hdmi audio modeSetting the Quick Restart feature Viewing the CableCARD menuViewing the digital signal meter To set the Quick Restart featureTo view the digital signal meter To close the screen and return to the Terrestrial menuTo close the screen and return to the Installation menu Restore Factory DefaultsTo cancel the reset Viewing the system statusUsing the TV’s basic features Selecting the video input source to viewLabeling the video input sources To select the video input source to viewTuning channels Using the Channel BrowserInput labeling example To clear the input labelsElements of the Channel Browser banner Tuning your favorite channels Tuning to a specific channel programmed or unprogrammedSwitching between two channels using Channel Return Switching between two channels using SurfLockSelecting the picture size To select the picture sizeNatural picture size TheaterWide 1 picture size For 43 format programTo set the scroll settings Full picture size for 169 480i, 480p source programs onlySignal Selected when Auto Aspect is On Source To turn on the auto aspect ratio featureTo turn off the auto aspect ratio feature To set the Cinema Mode to VideoAdjusting the picture Selecting the picture modeAdjusting the picture quality Mode Picture QualityUsing the closed caption mode Closed Caption AdvancedTo view captions or text To customize the closed captionsAdjusting the audio Using the digital audio selectorDigital closed captions Muting the soundAdjusting the audio quality To adjust the audio qualitySelecting stereo/SAP broadcasts To listen to stereo soundSelecting the optical audio output format Using the StableSound featureTurning off the built-in speakers Using the Locks menu Entering the PIN codeIf you cannot remember your PIN code Changing your PIN codeBlocking TV programs and movies by rating V-Chip To block and unblock TV programs and moviesBlocking TV programs and movies by alternate ratings TV-14Blocking channels To block channelsTo unblock individual channels To block all channels at onceUsing the input lock feature Unlocking programs temporarilyTo temporarily unlock the program To lock/unlock the video inputsSetting the sleep timer Using the control panel lock featureUnderstanding the auto power off feature Understanding the last mode memory featureTo display TV setting information on-screen To close the Recall screenUsing the TV’s advanced features Using the advanced picture settings featuresUsing dynamic contrast Using CableClear/DNR digital noise reductionSelecting the color temperature Selecting the lamp modeTo select the color temperature To select the lamp modeUsing the SRS WOW surround sound feature Using the advanced audio settings featuresUsing the Game Mode feature Troubleshooting General troubleshootingSound problems Remote control problemsChannel tuning problems Closed caption problemsLED Indication Condition Solution Voice Announce LED indicationsLamp unit replacement and care When to replace the lamp unitAppendix CanadaHow to replace the lamp unit Required toolsReplace the screw and tighten using a manual screwdriver Disposing of the used lamp unitSpecifications Limited United States Warranty For DLP Television ModelsLimited Canada Warranty How to Obtain Warranty ServicesHM66EN.book Page 53 Thursday, February 23, 2006 249 PM Index Wowsrs 3DHM66EN.book Page 55 Thursday, February 23, 2006 249 PM 06-03
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