Toshiba 32AV502R - No Sound, Burnt audio amp IC.

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  • lookimback
    Badcaps Legend
    • Aug 2013
    • 1489
    • USA
    #1

    Toshiba 32AV502R - No Sound, Burnt audio amp IC.

    Got this one on Sunday. Turns on, but has a bad panel. While testing, I discovered it has no sound. Upon further inspection I found the audio amp IC to be fried. I got it off the board, but 4 traces came up with it. They were fused to the pins. IC also has burn marks on the ground pad underneath. I can't find any shorts, so I think it's just the IC. I'm going to try to fix it. I think I can jump the traces with magnet wire.
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    • Andrew F. Ali
      Badcaps Legend
      • Jan 2014
      • 2450
      • Trinidad & Tobago
      #2
      Re: Toshiba 32AV502R - No Sound, Burnt audio amp IC.

      I had a similar issue with another set once.
      I used a signal tracer and found the audio IN signal pins (X2 for stereo).
      Built 2 audio amps with LM 386 and connected to the speakers.
      I think it still works today and that was since last year some time.

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