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Microlab FC330 Subwoofer won't work

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Luxfire

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Luxfire

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

jpanhalt

Well-Known Member
Most Helpful Member
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?
 

Luxfire

New Member
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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