Toshiba AM40 appendix Troubleshooting, Symptom Solution, Power

Appendix

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 connection of the AC adapter and AC cord, 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.
	•	The MTS feature may be in SAP mode. Select STR or MONO in the MTS
		menu.
Poor sound, picture OK	•	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.
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.
Cannot receive above channel 13	•	Make sure TV/CABLE is set to CABLE mode.
Unable to select a certain channel	•	The channel may be blocked by CH LOCK feature, or erased with the add/
		erase feature.
Cannot access signal input sources (Video1,	•	Check the VIDEO LOCK feature.
Video2, ColorStream HD, HDMI and PC)
and/or Channels 3 and 4
Multiple images	•	The station may have broadcast difficulties. Try another channel.
	•	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.
Black box on screen	•	Select OFF in the Closed Caption menu to turn off the Closed Caption Text
		mode.
No stereo or SAP sound from a	•	Make sure the MTS feature is set properly (AUDIO menu).
known MTS broadcast
The remote control does not operate	•	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.
The top panel buttons do not operate	•	Check the PANEL LOCK feature.
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.) 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.
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) 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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J3U70221A(E)P37-40 40 05/08/2005, 10:15 AM