(Topic ID: 189653)

grand prix ball count unit

By BarryMulvihill

6 years ago



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#1 6 years ago

ball count unit never energizes.

if i manually step unit, it does what it should, but it never energizes on its own during game

currently it just plays a 1st ball 1 player game, with unlimited balls.

i have cleaned ball count units switches, and panel is aligned with switch arms at reset.

schematics say "unit is energized at end of turn".

any hints as to where to look?

thanks in advance,
barry.

#3 6 years ago

thank you HowardR

im still getting familiar with schematics. i will update with progress. your hint was what i needed.

-barry

#4 6 years ago

So there's a wiper switch on coin unit that specifically energizes "ball count unit step up coil" And low and behold mine was Not making contact.

Bent the switch inta shape an ball count unit totally works now.

Almost embarrassed it was so aparent. Still learning.

Thank you pinside. Always helpful
-barry

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