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I have a 40 inch the volum keeps goin up n down first it regular then it goes real low were u could barely hear it then it returns after a min r two to regular volum

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Sounds like leaky capacitor/s at its audio output section circuit. Contact any service technician. If the transistor used to control the mute function is defective, this kind of fault can occur. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Posted on Nov 14, 2014

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SOURCE: TV volume suddenly low

I had the same problem and had to fix with a work around. I take the audio directly from my cable box and pipe it in to an external 'theater in a box' system.

Do you have a universal remote code?

Posted on Feb 27, 2008

allinallelec
  • 407 Answers

SOURCE: tcl tv volume goes up and down on its own

change volume switch.

Posted on May 30, 2012

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1 Answer

Volume keeps going down


This is a problem with the sound select board, and there is no real solution. One thing to try is to press the manual volume up or down buttons on the side of the TV and keep them depressed to see of remote volume control is restored. This over rides the volume creep issue. I solved this by shorting the UP control to ground and the creep went away, but there is no manual volume control any more, but the remote still works.

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Such a long delay and a slow return to volume is puzzling. If the return came back in say 30 seconds, I would suspect 1/2 of the V1 tube (12AX7) might have a failure of the heater. When it has failed see if this tube has TWO points of light in it. The cooling down and warm up would give a 15 second ramp up or down in volume. This tube has a path around it that would sustain a very low volume. Try swapping one of the other 12AX7's into this spot. If the sound totally goes away replace the one that was in V1 at first place and see if problem goes away.

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This is because the amp. Fault
  1. If the amp. Is getting hot turn the radio at low volume and keep it for more than 30 min. if it goes off, the amp. Is not good but if steel running you need to ventilated the amp. Check for air ventilation.
  2. The headphones are steel working because the rear audio system is not connected to the amp. That is the way it is

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Hello..if you can try to connect a external speaker or phones..if the volume is ok..than i think it is time to replace your internal speaker..pse tll me....good luck...Ron

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1 Answer

TV volume suddenly low


I had the same problem and had to fix with a work around. I take the audio directly from my cable box and pipe it in to an external 'theater in a box' system.

Do you have a universal remote code?

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