I've been in the process of cleaning up an old Chicago Coin Shuffle Alley "Americana" and just fired it back on for the first time after cleaning, adjusting, shopping out lamps for LEDs and making sure leaf springs were properly adjusted and everything was secure. Prior to this process the machine turned on, could start a game up, but as with an old machine that was neglected, reels weren't advancing properly, and it wasn't accurately scoring.

When I turned it back on I immediately blew the fuses in in the 30 Amp (unspecified) and the 2 amp slow blow bank reset and the 10 amp normal line. Then out of curiosity sake (and because I only had 10 amp fuses, no 20's) I threw a fuse in the 10 amp normal line, and when I plugged the machine back in, it blew the 10 amp low line.

I don't have a schematic, but these fuses are connected directly to the transformer. See attached picture. Any idea what I might have done, and to undo it?

IMG_3158 (resized).JPG

Thanks chas10e for the link. I was wondering why there was a jumper between the low and normal line fuses. When I got the machine there was no fuse in the low line spot and now I know why. I don’t have any 20 amp fuses on hand so waiting for them to arrive but in the meantime, would having fuses in both the normal and low line positions have also causes the bank reset coil and the 30 amp fuses to blow? And if so why? I’m not to knowledgeable about how EM game circuits work but trying to learn. Also found the schematic at pinball mikes and it’s on it way.
Thanks for helping a rookie out!

Yes 20amp! That was a typo from composing a message at 7:00am on a Sunday!thanks for the advice. 20amp fuses are on the way then hopefully I can confirm my error!