Hey Group I have a Williams Disco Fever. Plays fine. However when I hit a couple of switches.. It stops or freezes the game up....I have tested continuity on the switches,-lwires to board. All fine.. So unsure what to test next. Limited knowledge on electronic issues. but learning as we go.. Suggestions ? Thoughts on what might be the issues. Or how to test some more components. THX> NicToria.

Forgot to add......Also using a Gorgar system 6 board with Disco Fever chips installed. If that might be my problems. Disco Fever is System 3..

Hey. Thx.. The Gorgar boards. Combined Style.(2) are a known working set . I "borrowed' the boards and installed them in the DF....

So the switches that cause the lockup or freeze mode. are # 40 ER Stand up... behind the 3 drop targets. Unsure what this switch even does.. And # 35... Turn around switch. Unsure of its use also..

NT

I don't have any know issues on the Gorgar boards
or their chips.... I am just guessing though....

THX> Will look into Switch Testing. NT>..