Microlab FC330 Subwoofer won't work

[Luxfire]

Hi guys, i've got an Microlab FC330,
They just stop working. Aty first one MOSFET in power PCB didnt work properly so i take care of it.
Now subwoofer won't work, but speakers works well. my guess is a transistor c1858 <datasheet here https://pdf1.alldatasheet.pl/datasheet-pdf/view/30084/TOSHIBA/C1815.html > but i'm not sure with this, could you give me some tips, what to check?
Thank for Your guidiance,

IMG of pcb:
https://imgur.com/a/Jz50R
https://imgur.com/a/2C8u3

 

[Luxfire]

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

 

[jpanhalt]

This:

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]

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.