Toshiba 34AS42 owner manual Troubleshooting, Problem Checks and Adjustments

Appendix

Troubleshooting

Before calling service personnel, please check the following chart for a possible cause of the problem you are experiencing. A minor adjustment on your part may eliminate the problem and restore your TV reception.

Problem	Checks and Adjustments
TV will not turn on	● Make sure the power cord is plugged in, and 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 S.
	● The station may have broadcast difficulties. Try another channel.
	● Make sure the MTS feature is set correctly.
Poor sound, picture OK	● The station may have broadcast difficulties. Try another channel.
	● An appliance near the TV may be causing interference. Move or
	turn off the appliance.
Poor picture, sound OK	● Check the antenna/cable connections.
	● The station may have broadcast difficulties.Try another channel.
	● An appliance near the TV may be causing interference. Move or
	turn off the appliance.
	● Adjust the Picture menu.
Poor reception of broadcast channels	● The station may have broadcast difficulties. Try another channel.
	● Check the antenna connections.
	● If using a VCR, make sure the TV/VCR button is set correctly.
No UHF, VHF OK	● Make sure the TV/CABLE function is set to the mode that corresponds
	to the signal source type (cable company or outside antenna).
Black box appears on the screen	● The Closed Caption Text feature (T1, T2, T3, or T4) may be on.
	Set the Closed Caption feature to OFF.
Cannot select a certain channel	● The channel may be blocked by the BLOCK CHANNEL function.
	Unblock the channel.
	● The channel may have been erased from the channel memory by the
	ADD/ERASE function. Reprogram the channel into channel memory
	or use the Channel Numbers to select the channel.
Multiple images (ghosts)	● 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.
	● An appliance near the TV may be causing interference. Move or
	turn off the appliance.
	● Adjust the TINT and/or COLOR in the Picture menu.
	● If you change the direction of the TV while the TV is on, the
	picture may suffer from color shading. Turn off the TV and allow
	it to cool for about 30 minutes; then turn it on again.
No stereo or SAP sound from	● Make sure the MTS feature is set correctly.
an MTS broadcast
The remote control does not operate	● Make sure the TV/CABLE/VCR switch is set correctly.
	● There may be an obstruction between the remote control and the TV.
	Remove the obstruction and retry the remote control.
	● The remote control batteries may be dead. Replace the batteries.

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