Toshiba 50HX81 Troubleshooting

Appendix

Troubleshooting

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

Problem	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 front panel buttons do not operate	•	Check the FRONT PANEL LOCK feature.
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) and/or
Channels 3 and 4.

56

Contents

Introduction Connecting yourTV Owner's Record Model number: Important Information Precautions Page Introduction Welcome to Toshiba Please Note Exploring your new TV Connecting your TV Connecting a VCR Connecting a cable converter box Connecting a cable converter box and VCR Connecting a DVD player or satellite receiver and a VCR Connecting a DVD player with ColorStream® and a VCR Connecting a DTV receiver/set-topbox with ColorStream® and a VCR Connecting two VCRs Connecting a camcorder Connecting an audio system Connecting an A/V receiver Using the remote control Preparing the remote control for use Installing the remote control batteries Remote Control functional key chart Page Programming the remote control for use with your audio/video devices Verifying the device code (990) Using the volume lock feature (993) Operational feature reset (980) Device code table Page Page Page Learning about the remote control Setting up your TV Learning about the menu system Changing the on-screendisplay language Selecting the antenna input Adding channels to the TV’s memory Changing channels Adjusting the color convergence 3. Press x or • to display the Center Convergence menu 6.Press EXIT to display the Circumference Convergence menu Press the corresponding Number button 10.Press EXIT once to select another area to adjust, and then repeat steps 7–9 11.Press EXIT twice to close the Convergence menu Using the TV’s features Adjusting the channel settings To clear your favorite channels: 2.Press y or z to highlight FAVORITE CH2, for example 3.Press x or • to display the FAVORITE CH2 menu 4.Press yzx • to highlight the channel you want to clear, then press ENTER 5.Repeat step 4 for other channels Page Viewing the wide-screenpicture formats Theater Wide 1 (recommended mode): The picture is •None of the picture is hidden Theater Wide 2: The entire picture is uniformly Scrolling the Theater Wide picture (Theater Wide 2 and 3 only) 1.Press PIC SIZE to select the Theater Wide 2 or 3 mode 2.Press MENU, and then press x or • until THEATER menu appears 3.Press y or z to highlight PICTURE SCROLL 4. Press x or • to display the Scroll Adjustment mode Using the POP double-windowfeature Switching the main and POP pictures Freezing the POP picture Using the favorite channel search function 1.Press FAVORITE 2.Press yzx • to select one of the nine pictures (becomes a moving picture) Using the LOCKS menu Using the V-CHIPmenu MPAA RATING (Independent rating system for movies) 1.From the LOCKS menu, select MPAA RATING 3.Press x or • to display the MPAA RATING menu BLOCKING OPTION 1.From the LOCKS menu, select BLOCKING OPTION Locking channels Locking video inputs Using the front panel lock feature Changing the PIN code Adjusting the picture Saving new preference Using the ALS (Automatic Light Sensor) feature Using the flesh tone feature Selecting the cinema mode To select the cinema mode: 1. Press MENU, and then press x or • until the PICTURE menu appears 2. Press y or z to highlight CINEMA MODE 3. Press x or • to select FILM (auto) or VIDEO (off ) Selecting the color temperature Resetting picture adjustments Selecting the video input source Labeling the video input sources Using the closed caption feature Setting the sleep timer Setting the clock Adjusting the sound Using the WOW™ surround sound feature Adjusting the sound quality Resetting audio adjustments To reset the audio adjustments: Using the sub-basssystem (SBS) To turn on the SBS: 2.Press y or z to highlight SBS Turning off the built-inspeakers To turn off the built-inspeakers: 1.Press MENU, then press x or • until AUDIO menu appears 2.Press y or z to highlight SPEAKERS 3.Press x or • to highlight OFF Selecting the background of the menu display Displaying on-screeninformation Viewing the demonstration mode Understanding the auto power off feature Understanding the last mode memory feature Appendix Specifications Troubleshooting Limited United States Warranty Index