Mr. Pinball Tip:

Some coils activate a tightly grouped cluster of switches, especially those in the cabinet bottom. When you move them to take a look and clean or adjust them it can be very hard to judge if a switch is opening and closing with proper contact because you see the switches behind or around it at the same time. Fold or cut a small piece of bright white posterboard to slip behind the contact you are working on. This makes it MUCH easier to see the clearance between the contacts you are actually working on.

Kevin Jahn
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