Question about Toshiba 35AF44 TV

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Toshiba TV volume problem

Toshibe TV, model #35AF44, Serial #21132846Chasis #TAC424, has a problem with the volume turning itself down. The volume bar appears on the TV, the volume goes down and then the volume bar stays on. I have blocked the front of the TV to remove any chance of a stray signal causing the volume to go down. This problem may be due to a surge because I lost a the display on my Surround Sound and 19" TV at the same time. All had surge surge protection.

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  • lchick Jan 02, 2009

    I opened the TV up and isolated the problem. There was some stray low voltage coming continously from the "Key B Out". There was a link from "push button and remote board" over to the "front RCA input board" that allowed me to isolate the "Key In", "Key A Out" and the "Key B Out" from the rest of the TV. Now all Remote Control functions have returned and the volume stays where it is left. This was the quick fix but replacement of the board or the small transistor that was leaking would have solved the problem completely but "Hey, who uses the buttons on the TV anymore?"

  • mike19419 Jan 31, 2009

    my DEMO screen will not turn OFF
    seems that the remote is lock 
    can not even get into the remote MENU to turn off the   DEMO mode!
    any suggestions
    PS it is driving !@#$%^&  CRAVY  please help
    jan 29/09


5 Suggested Answers

  • 1139 Answers

SOURCE: 36a43 volume goes up and down buy itself

This problem sometime occurs due to a bad capacitor in the volume control circuitry. You will need a multimeter and a schematic to find out the proper voltages within the volume control circuitry. I would suggest that if you do not have a background in electronics that you take the set to a qualified shop for repairs.

Thank you,


Posted on Nov 14, 2007

  • 298 Answers

SOURCE: Toshiba (Model : 36A43) - volume goes down automatically

Try removing the batteries from the remote. Then adjust the volume from the tv panel. If the problem is resolved, then it sounds like you may have a stuck remote button.

Posted on Jun 18, 2008

  • 108 Answers

SOURCE: Black box showing up in center of tv

your closed caption feature is turn on and in the text mode. either turn off the closed captions or change it from text to cc1

Posted on Jan 08, 2009

  • 36 Answers

SOURCE: tv volume turns down by itself

I had that happen to me once and found that one of my remotes was under the sofa cushion, However, I would look at the connections on the pcd that has the volume controls on them, the down switch either has moisture or corrosion behind it, or the switch itself is faulty, if not, remove all dust from inside the set, some may be causing conductivity on the processor, I believe it will be a mechanical type fault rather than electronic...try that...Phil

Posted on May 19, 2009

  • 668 Answers

SOURCE: i was watching tv when suddenly the volume control

The front panel Tactile Switches probably need to be replaced. The part # of the switches is 23344507. You can order them through Encompass Elect. 800-638-3328.
Hope this helps,

Posted on Jul 02, 2009

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Toshiba (Model : 36A43) - volume goes down automatically

I am having same problem on 32 inch same problem. After playing with board with no results,I tried front buttons and found that if I held the power button in ever so slighItly as not to turn it off, it fixed problem which is the micro on/off switch, I removed the switch and used the remote and everything is back to normal, I am about to insall a used micro switch after I finish typing this but I am sure this will clear up volume problen and menu going crazy problem if not I will just leave micro switch out and use the remote, and I will get back to this board only if that micro switch still causes the problem, so if I don't post in next hour the problem is fixed and I'm more than glad to help.

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toshiba 35a44 I had in shop would not turn on initially,when Qa01 was replaced I was able to turn tv on, but after a couple of minutes volume went all the way down, vol display bar on screen and power and menu keys would not work, remote control function did not mater. after replacement of QA02 mpu no results. desoldered volume down and up keys and sprayed chassis with flux remover on both sides of chassis and sumerged vol keys in alcohol solutions for 10 minutes, restored them in chassis and the problem was corrected. QA01 and QA02 did not had to be replaced there was a contaminant problem on solder flux that was causing the problem. kbzon

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