I have narrowed it down to the left cart path switch (71).

When I activate it (in switch edge test) all of the switches in that row activate (show as activated).

This switch (71) is causing the slam tilt to occur during play.

When I test the other switches in that row, only the switch activated is shown.

The diode is good and so is the switch (wired a new switch in parallel and same thing happens when activated).

Any suggestions as to where to go next would be appreciated.

Robert

Thanks, the game worked fine then suddenly started showing this symptom so no diodes are wired backward...but I did check.

Robert

I'm not positive, but as far as I can tell (this goes really fast on the DMD) and you can hear the dinging are the ones in row 1...SLAM TILT, TROUGH EJECT, LEFT GOFER DOWN, LEFT SLINGSHOT, LEFT SPINNER, LEFT CART PATH & K-I-C-K ADVANCE.

Robert

Switch Matrix.pdf

So, I have done more switch testing and found when looking at the switch edges on the DMD that the golf cart switch was closed, continually.

When I took a look at the switches on the cart, I found the right switch had the diode smashed against one of the switch lugs. When I pulled it away, my issues went away too.

Thanks for the help.

Robert