Hi friends. So whenever I play multiball in BTTF pinball and get jackpot (usually a couple times in a row) the game either freezes or, sometimes, blows a fuse. I did some research on the internet and found a Data East repair guide. I followed the guide and replaced the flipper diodes to no avail. I'm in the process of going through the machine and testing/replacing other diodes.

I was wondering if anyone had any advice as to what more I can do.

Thanks!