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Donkey Kong on MAME won't register quarters...
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Dervacumen:

--- Quote from: roadrunnr on January 29, 2007, 01:12:30 pm ---

So I can either switch the coin slot wires, OR re-map the DK coin to #2.

Right?

--- End quote ---

Bingo!
steveh:
i would do neither.  i would trace the problem.  obviously your coin1 is not working.  it is probably a wiring problem.  or maybe a problem with your encoder.  i would fix that
Crowquill:
Do coins just not drop all the way through (they don't hit the wire), or does hitting the wire for the switch just not trip it? What kind of coin door do you have?

If the coins won't drop through, remove and clean the coin mech. Replacement mechs are pretty cheap if cleaning it out doesn't work (knowing which ones you need for your coin door will help, but they're pretty universal).

If the switch isn't registering, check the wiring. You can try checking for continuity between the switch and the minipac with a multimeter or continuity tester. also check continuity between the switch's contacts when the switch is tripped.  The switches are replaceable.  As a temporary solution, I'd just remap that switch to be P1 start in MAME's "Input (general)" menu.
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