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wiring troubleshooting...
fredster:
the multimeter test is the best.
Flip the meter to ohms. Touch the red and black probes together. You will see the meter jump.
That's how you test continuity. Put one probe on each of the contacts and press the button. It should move.
I hope that you have all those buttons wired for normally open.
apu95:
sorry it took so long to reply, i started school and i havent had time to sit down for a decent computer session.
Thats the weird thing...since the ground is running thru all the buttons, then if the ground on number 4 were not working, the other buttons that follow that button wouldnt work either. i know the other buttons work tho (start, coin, etc) so thats why i was thinking of blaming a busted microswitch. my wiring mat also be the fault, but ive changed the wire twice already, so i doubt it...im gonna do it again just in case and get back to the msg.
thx,
Apu
EricB:
I'm new here, but I'll chime in on this one anyway. If all of your other buttons work, then the ground is not the problem at all. Sounds to me as though the wire coming from the other side of the #4 switch is not making contact OR the switch is no good. I think I would do like someone else recommended and try a different switch on button 4. If that still doesn't work, then I would wonder about my encoder being faulty on that input. Be sure that the wire going into that terminal is stripped back enough so the insulation isn't under the screw.