To simplify installation I made an adapter pigtail for the GI power plug for a clean installation. I use the William’s style since so many Data East power supplies have alkaline damage from leaking capacitors that’s it’s usually not worth rebuilding them. When the problems were described to me over the phone by the customer, I decided to bring a rebuilt power supply. I get a call for a Back to the Future pinball that won’t power up. A Data East pinball power supply with a pencil jammed between fuse clips to “repair” a broken fuse clip. I really can’t understand what was going through this guys head as he’s wedging a broken pencil between the fuses to “fix” the problem. This Back to the Future power supply had an interesting fix for the broken fuse clip.
#Zaccaria pinball first power up how to
I’ll make a video on how to do that if anyone is interested. You can check it by measuring across each diode. The bridge rectifier could be another culprit. 99% of the time failed or weak power supply problems are caused by bad capacitors. If your game logic board won’t boot up or is acting weird, check your power supply. For some reason the caps that Data East used were a very poor quality considering how frequently they leaked compared to caps other manufacturers used of the same era. It’s a crap shoot really.Ĭapacitors are the next weak link. You may only have to replace one or sometimes all of them. You also need to check the fuse clips on the PPB board as well as the flipper board below the playfield. Other times you have to push on each clip to see if its bad. Sometimes they just break on their own and one side of the fuse may come loose. The first is weak link is the fuse clips.
Data East pinball power supplies have two weaknesses that can cause erratic operation in addition to keeping your game from working at all.
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