Appendix; Troubleshooting - Toshiba AM40 Owner's Manual

Appendix

Troubleshooting

Before calling a service technician, please check the following table for a possible cause of the symptom and some solutions.
Symptom
TV will not turn on
No picture, no sound
No sound, picture OK
Poor sound, picture OK
Poor picture, sound OK
Poor reception of broadcast channels
Cannot receive above channel 13
Unable to select a certain channel
Cannot access signal input sources (Video1,
Video2, ColorStream HD, HDMI and PC)
and/or Channels 3 and 4
Multiple images
Poor color or no color
Black box on screen
No stereo or SAP sound from a
known MTS broadcast
The remote control does not operate
The top panel buttons do not operate
Poor composite or S-video picture
Picture and sound are out of sync
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Solution
• Make sure the connection of the AC adapter and AC cord, then press
POWER.
• The remote control batteries may be dead. Replace the batteries.
• Check the antenna/cable connections.
• The sound may be muted. Press VOLUME.
• The station may have broadcast difficulties. Try another channel.
• The MTS feature may be in SAP mode. Select STR or MONO in the MTS
menu.
• The station may have broadcast difficulties. Try another channel.
• The MTS feature may be in SAP mode. Select STR or MONO in the MTS
menu.
• Check the antenna connections.
• The station may have broadcast difficulties. Try another channel.
• Adjust the PICTURE menu.
• The station may have broadcast difficulties. Try another channel.
• Check the antenna connections.
• Make sure TV/CABLE is set to CABLE mode.
• The channel may be blocked by CH LOCK feature, or erased with the add/
erase feature.
• Check the VIDEO LOCK feature.
• The station may have broadcast difficulties. Try another channel.
• Use a highly directional outdoor antenna.
• The station may have broadcast difficulties. Try another channel.
• Adjust the TINT and/or COLOR in the PICTURE menu.
• Select OFF in the Closed Caption menu to turn off the Closed Caption Text
mode.
• Make sure the MTS feature is set properly (AUDIO menu).
• Make sure the TV • CBL/SAT • VCR • DVD mode is set properly.
• Remove all obstructions between the remote control and the TV.
• The remote control batteries may be dead. Replace the batteries.
• Check the PANEL LOCK feature.
If the TV is connected to an external A/V device (e.g., DVD player, video
game system, set-top box, etc.) always try to use the ColorStream video
jacks (and corresponding audio jacks) or the HDMI input (if available) for
connection to such external A/V device. This will reduce the amount of video
processing to be performed by the television.
As with all products that contain a digital display, in rare instances, when
viewing certain content (e.g., television broadcasts, video games, DVDs) or
with varous audio system connections, you may notice that the picture and
sound 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/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:
• If the TV is connected to an A/V receiver that has a programmable audio
delay feature, use this feature to help synchronize the sound to the picture.
• If you notice this phenomenon only on certain TV channels, please contact
your local broadcast, cable, or satellite provider to inform them of this
issue.
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05/08/2005, 10:15 AM