I need help with my Sega Megalo 41

Hello all, like the tittle says I need help with new arcade cab. I bought this the cab for only $25 but here is the catch I need to fix or find a replacement for a “GP-1 Sub Power P.W.B”. I don’t even know what it is or does but I’m assuming it needs to be fixed. The pictures below should clarify what I’m talking about.

woah. you bought an entire megalo 41 cabinet for 25bucks? thats the most insane thing ive ever heard. i am very jaelous, even if it doesnt work. and wtf, local to me?

sorry, dont have an answer to your problem tho =(

I’d say post this up in the BYAOC forums. More likely to find someone who knows what’sup there.