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Have an RCA L26WD26D flat screen/DVD combo. After a period of time the audio begins to fade and I have to gradually increase the volume to the max to hear.

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  • mjmouze Aug 07, 2010

    absolutely brilliant! Thanks much. regards-Frank

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  • RCA Master
  • 11,800 Answers

It's a defective audio amplifier chip - either it heats up too much and its performances degrade or one of the capacitors from the reaction loop has aged and when it heats it's losing its isolating properties.
You need to open the case and test the amplifying IC. If you don't have any testing equipment then just unsolder all the capacitors and the IC, make a drawing of how they were, buy identical replacements and solder them back.

Posted on Aug 06, 2010

  • 1 more comment 
  • mjmouze Aug 06, 2010

    What's an amplfying IC? It woulfd be easier for me to swap out the board the amplifier chip is on. Which one is it? How can I identify it by looking? Regards-Frank

  • Azrael SRL Aug 07, 2010

    IC = Integrated Circuit, the circuit that amplifies the sound. It's very easy to identify it, just look at the wires from the speakers, they should be plugged on the board very close to it.



    Yes, you can just replace the board but this is like junking a car because you have dirt on the carpets. Still, if this is what you want to do then this should be the board
    http://www.discount-merchant.com/RCA-CEF...

  • mjmouze Aug 07, 2010

    I see several manufacterers of CEF276A boards-Are they configured alike-Are they the same?

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this is gotta be the largest complaint I hear from folks when they get a new flat screen , its not loud enough or the sound sounds muffled

flat screens are flat ! so theres no good way for mfg to put the speakers facing forward so sound has to hit the wall behind it first then gets directed forward to you ! (low/muffled)

sound bars help with this , but for true rich sound , id go with a video receiver amp combo , some of these even have built in dvd players , and arrange its speakers in a forward facing direction

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sorry dear...just got disconnected

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