I cleaned my logic board with alcohol and now it won't turn on

Okay, so I fixed an ipod that had water damage and everything worked great except for the speakers/headphones, they would work sometimes and then shut off unless plugged into the computer, then they worked fine. So I opened it up and found corrosion around the speaker area, cleaned it all up with 70% isopropyl rubbing alcohol, put it back together doing a thorough check to make sure everything was connected, and now it won't power on or or connect to the computer.

I want to see if it's possible to fix so I won't have to buy a new logic board. Any help is greatly appreciated.

Thanks.