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(Topic ID: 325551)

BK2K Low power to coils

By SchertzPinball

1 year ago



Topic Stats

  • 2 posts
  • 2 Pinsiders participating
  • Latest reply 1 year ago by Knxwledge
  • No one calls this topic a favorite

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#1 1 year ago
OP
 
JER

SchertzPinball

Pinside+ Frequent

US Schertz, TX

11y 43,150 554 31

Everything worked until I moved the game upstairs. I took the head off and when reassembled, only 7ish Volts to all coils. I have triple checked all connections, connectors, fuses, fuse clips, all grounds good and continuity through the whole game for every connection. Everything works perfect except playfield coils and flippers.

The schematics show supposed to get 25v and 50v from transformer to auxiliary power board at J8, but both are the same 7ish volts.

I have tried everything I know in the past week with no luck.

Does anyone have any ideas what could be wrong?

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#2 1 year ago
 
DNH

Knxwledge

Pinside member

US Ramona, CA

5y 81,300 1,896 11 8 2

Maybe one of the wires came off one or more of the lugs on the transformer? Are you sure you didn't plug that J8 plug in backwards? Based off the schematics it looks like it's possible to do so.

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