Question about Toshiba 57H81 57" Rear Projection Television

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Audio Problems TV has sound on all but 2 or 3 channels. Have tried to adjust the audio settings but when we go to 'Advanced Audio' and try to put the MTS to 'stereo' it isn't highlighted and won't let us select MTS to put it on stereo. Any ideas? We obviously can live with it but can't figure out what the problem is. Can this be a cable box problem or a TV problem? Also, one channel is broadcasting in Descriptive video (very annoying) and we can't get it turned off. Thanks.

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Re: Audio Problems

First for the Toshiba could the SAP (Second Audio Progam) be turned on this will somtimes cause the audio to drop. And are you using the onboard tuner or does this set conect to a cable box?
Then for the Panasonic the most common problem for your fault would be the convergance curcuits are shorted and need replacment, or some other componet may be loading down the set and forcing it in to shut down, Tv's will do this to prevent further damage

Posted on Feb 13, 2008

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No sound,but good pic.everything else works fine.(toshiba 57hx94)


• Check the antenna/cable connections (see Chapter 2).

• The station may have broadcast difficulties. Try another channel.

• The sound may be muted. Press VOLUME.

• If you hear no sound, try setting the MTS feature to STEREO mode (page 81).

• Make sure the SPEAKERS function in the AUDIO SETUP menu is set correctly (page 83).

• If you are not receiving a second audio program from a known SAP source, make sure the MTS feature is

set to SAP mode (page 81).

• If you hear audio that seems "incorrect" for the program you are watching (such as music or a foreign

language), the SAP mode may be on. Set the MTS feature to STEREO mode (page 81).

• When using an external audio amplifier, if you connect the amplifier to the VAR. AUDIO OUT jacks, the
volume of the TV and amplifier must be set above 0 or you will not hear any sound (page 20).


Dec 03, 2010 | Toshiba 57HX94 57 in. HDTV Television

2 Answers

Audio Problem - Can't turn the 'stereo' feature on the MTS

what cable boxdo uuse can use s video out for video to tv and rca cable for sound left and right is it a hd tv then u wantto use coumpiunt cable or hdmi

Jan 11, 2008 | Toshiba 57H83 57" Rear Projection HDTV

1 Answer

I can get a picture , but no sound on the TV . What am I doing wrong?

Many RCA TV sound problems are caused by SAP function being activated by TV station equipment that converts Analog TV signals to HD signals. Accidental pressing of the wrong buttons on your remote can also cause this problem.

The incorrect conversions causes the Audio settings to be changed from Stereo to SAP by the received signal.

Solution is to go to Audio set-up in customer menu and change settings from SAP to Stereo. If you find that settings are wrong, change them to "Stereo". Do channel scan if you are using the TV tuner/remote to select channels. Turn off the TV and unplug for 60 seconds. Check the settings again and reset if required.

This problem may re-occur when you select the VHF channel, satellite channel or cable box channel that is causing the problem. It is not a TV fault that can be repaired. The problem is caused by the incorrect incoming signal.

SAP is Second Audio Program, used for second language transmissions.

Second cause may be that the speakers have been turned off in the audio set-up menu.


Apr 22, 2010 | RCA HD52W59 HDTV Projection Television

1 Answer

Sound goes out for certain programs or commercials on different channels, but not all of them

Check your tv's audio settings. If there is an "SAP" button on your remote try hitting that. It stands for secondary audio program. Most manufacturers put it near the corners of the remote leaving it prone to getting hit without knowing. Most shows are broadcast with a spanish version of the audio. Hitting that button should allow you to hear it, but some tv networks do not broadcast the SAP audio making it seem like there is no audio. It usually affects more than one channel, and commercials do not broadcast SAP either.

Jan 20, 2010 | JVC AV-56P575 56" Rear Projection...

1 Answer

No sound on some channels

your tv has audio setting called SAP that is for channels that are broadcasting on a second language like spanish, on the channels that do not have this SAP capabilitie you will not hear anything unless you put your tv on stereo mode, so you need to go out of the Sap mode by a button on the remote, check for mts, button , or audio thank you

Jun 21, 2009 | RCA R52WM24 52" HDTV Projection Television

1 Answer

PT-52LCX65-K Panasonic rear-projection LCD No Sound

My panasonic did the same thing. turns out my coaxial cable hooking up the cable from the wall was bad. Once i unhooked it from the wall, the sound popped. I wiggled it a little on the receiver end on the wall and got sound. So try replacing your cable box cord and see if it fixes it.

Dec 15, 2008 | Panasonic PT-52LCX65 44" HDTV

1 Answer

The tv works fine, can hear all channels except the video channel on the tv - no sound at all - the video when playing a tape no sound either - please help - thanks

Since the sound works on all other channels, there are 2 possibilities:
1) The audio switching chip has failed.
2) The source is not sending the audio to the set.

The higher probability is option 2. Can you please post the make and model of hte set as well as that of the tape player? That info will help to give you more details.

May 01, 2008 | Projection Televisions

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Surround sound

to connect audio from tv to receiver.Use the monitor out(audio) from tv to receiver .The tv will only put out left/right audio .Also when using the audio out from Sony tv sometimes you cannot use both the internal speakers from tv and audio out from tv to receiver at the same time..Make sure audio is set up on TV menu for audio out..

Nov 20, 2007 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

RCA 46 in rear projection

The first thing that I would check is in the audio menu to see if it is set on the SAP mode (secondary audio programming). If it is and there is no audio being broadcast on that channel, then you would have to turn SAP to off (which is usually what it is set to). Now there have been problems with the audio dropping out on regular CRT style RCA televisions where the audio would drop out, and you had to unplug the set for about 30 seconds to reset the TV, and I would try that next.

Dec 19, 2006 | RCA P46921 46" Rear Projection Television

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