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Microlab FC330 Subwoofer won't work

Discussion in 'Repairing Electronics' started by Luxfire, Aug 27, 2017.

  1. Luxfire

    Luxfire New Member

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  2. Luxfire

    Luxfire New Member

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    So. i've changed c1815 and checked tda2030. still only speakers works, subwoofer not. have somebody any ideas?
     
  3. jpanhalt

    jpanhalt Well-Known Member Most Helpful Member

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    This:
    upload_2017-8-29_7-20-7.png

    Looks like a non-soldered pin.

    Your link is to an op-amp, not a mosfet for what its worth. Those 5-pin devices are not likely to be mosfets. Is that what you replaced?
     
  4. dave

    Dave New Member

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  5. Luxfire

    Luxfire New Member

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    No, Mosfets was in power supply pcb, this pcb is from speakers and sub. Previously my father replaced this amplifiers, it's horrible looking but conections are good i check them with multimeter.
    Also this TDA2030 are in good condition, i've checked it too.
     

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