Hi!

I've just acquired an old Macintosh Classic. It is U.S. version with 110V power supply. I found out that someone probably tried to connect them to 230V because the fuse is broken and one (probably switching) transistor explode.

I would like to repair it but i don't know what type of transistor is used. It is marked as QP2 on PCB, type of board is 630-0525-8. Do somebody know type of QP2 transistor? Or do you have a scheme of power supply?

Thank you very much!

Honza