Toshiba 65NH84 owner manual Troubleshooting, Antenna, Black box appears on the screen

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Appendix

Troubleshooting

Before calling a service technician, please check the following table for a possible cause of the symptom and some solutions.

Symptom	Solution
TV will not turn on	•	Make sure the power cord is plugged in, then press POWER.
	•	The remote control batteries may be dead. Replace the batteries.

No picture, no sound	•	Check the antenna/cable connections.

No sound, picture OK	• The sound may be muted. Press VOLUME.
	•	The station may have broadcast difficulties. Try another channel.
	• Check that the SPEAKERS function in AUDIO menu is set properly.

Poor picture, sound OK	•	Check the antenna connections.
	•	The station may have broadcast difficulties. Try another channel.
	• Adjust the PICTURE menu.

Poor reception of broadcast channels	•	The station may have broadcast difficulties. Try another channel.
	•	Check the antenna connections.
	•	If you are using a VCR, make sure the TV/VCR button is set
		correctly.

Cannot receive above channel 13	•	Make sure the TV/CABLE switch is set to the mode that
		corresponds with the signal source type (cable company or outside
		antenna).

Black box appears on the screen	• The closed caption feature may be set to one of the Text modes (T1,
		T2, T3, or T4). Turn closed captioning OFF.

Unable to select a certain channel	• The channel may be locked out with the CH LOCK feature, or
		erased with the ADD/ERASE feature.

Multiple images	•	The station may have broadcast difficulties. Try another channel.
	•	Antenna reception may be poor. Use a highly directional outdoor
		antenna.

Poor color or no color	•	The station may have broadcast difficulties. Try another channel.
	• Adjust the TINT and/or COLOR in the PICTURE menu.

No stereo or SAP sound from a	•	Make sure the MTS feature is set properly.
known MTS broadcast

The remote control does not operate	•	Check whether the appropriate device mode is selected.
	•	Remove all obstructions between the remote control and the remote
		control sensor in the TV.
	•	The remote control batteries may be dead. Replace the batteries.

Cannot access signal input sources	• Check the VIDEO LOCK feature.
(Video1, Video2, Video3,

ColorStream HD1/HD2, HDMI) and/or Channels 3 and 4.

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Contents Projection Television Safety Precautions Dear CustomerImportant Safety Instructions InstallationService CareImportant Safety Precautions for Split Cabinet Feature Important Safety Information Introduction Welcome to Toshiba Exploring your new TVConnecting an antenna or cable TV Connecting your TVConnecting a VCR Connecting a cable converter boxConnecting a cable converter box and VCR Connecting a DVD player or satellite receiver and a VCR From Antenna Stereo VCR From DTV Antenna Connecting two VCRs Connecting a camcorderOne pair of standard analog audio cables Connecting an Hdmitm or a DVI device to the Hdmi inputOne Hdmi cable type a connector Connecting an audio system Preparing the remote control for use Installing the remote control batteriesUsing the Remote Control Remote Control functional key chartCBL/SAT Audio VCR TV/VCR TV/SAT Device code setup Searching and sampling the code of a deviceConnecting YourTV Using the volume lock featureOperational feature reset Usingthe RemoteControl Setting up your TV FeaturesVCR setup codes Device code tableCD Player setup codes Learning about the remote control Connecting TVyour Learning about the menu systemPress y or z to highlight your desired language Changing the on-screen display languageSelecting the antenna input Display the pull-down menuProgramming channels automatically Introduction Connecting YourTVAdding channels to the TV’s memory To program channels automaticallyUp TV Changing channelsAdding and erasing channels manually Manually adjusting the color convergence Adjusting the color convergenceIntroduction Connecting your TV Setting up your TV Using the TV’s FeaturesTo reset your adjustments Switching between two channels using SurfLock Adjusting the channel settingsSwitching between two channels using Channel Return Programming your favorite channelsPress Enter to display the Favorite CH menu Press y or z to highlightFavorite CH UsingtheTV’s Features Appendix Introduction Connecting YourTV Usingthe RemoteControlSettingup yourTV Labeling channelsSelecting the picture size Natural picture sizeUsingtheTV’s Features Usingthe RemoteControlSetting your To lower the picture, press z Press Enter to display the Scroll Adjustment modeTo raise the picture, press y Press y or z to highlight Auto ASPECT, and then press Using the Auto Aspect featureSetting Your UsingtheTV’s Features Appendix Index EnterUsing the POP double-window feature POP Source Select I onSwitching the main and POP pictures Switching the speaker audio main or POPUsing the programmed channel search function Double-Window aspect ratioUsing the favorite channel search function About the auto favorite featureEntering the PIN code Using the Locks menuUsing the V-CHIP menu If you cannot remember your PIN codeTV Rating Independent rating system for broadcasters Enable BlockingOFF To release your setting Unlock Press z or y to select an itemMpaa Rating Independent rating system for movies Mpaa RatingUnlocking programs temporarily Usingthe RemoteControl Settingup YourTVLocking channels Repeat steps 2 and 3 for other channelsPress y or z to highlight Clear ALL, and then press Enter OFF Locking the video inputsChanging the PIN code Press Enter New PIN code is now activeAdjusting the picture quality Adjusting the pictureSelecting the picture mode Press x or to select the mode you prefer Selecting the color temperaturePicture Settings menu appears Saving your new preferencesUsing the CableClear DNR feature TheTV’s Features Resetting picture adjustmentsSelecting the display format for 480p signals only Selecting the cinema modeSelecting the video input source To view text, highlight T1, T2, T3, or T4 Using the closed caption featurePress y or z to highlight Caption or TEXT, and then press Setting the on timer Setting the sleep timerPress Enter to start the clock To set the clockPress y or z to highlight Clock SET, and then press Enter To display the time on-screen Press RecallSelecting stereo/SAP broadcasts Adjusting the soundMuting the sound Press y or z to adjust the item, then press Enter Using the WOW surround sound featureAdjusting the sound quality Audio Settings menu appearsTo turn off the StableSound feature Select OFF in above Resetting your audio adjustmentsUsing the StableSound feature CenterSettingup YourTV UsingtheTV’s Features Appendix Index Connecting Your ControlUsing Remote Turning off the built-in speakersSelecting the background of the menu display Understanding the auto power off featureUnderstanding the last mode memory feature Displaying on-screen informationSpecifications AppendixBlack box appears on the screen TroubleshootingAntenna T2, T3, or T4. Turn closed captioning OFFLimited United States Warranty Limited Canada Warranty Page Page Index Manufactured by