Where can I buy a new PCB for google mini?

I was trying to modify my google mini to play through new speakers, which was working perfectly fine until the first PCB (the one that plugs directly into power source) broke. I have been on to google support and they suggested to ask here - so here I am.

I’ve tried all the major sites and nothing - can anybody help? I really don’t want to buy a new one when its only one circuit gone bad :(

Thanks