Problem Wiring for Sanwa buttons in a cabinet with American style buttons

xMasterPx

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Hi Woody,

Basically if this permanent change you would just need to cut the 4.8mm female crimps off the end of the wires which is usually found on American machines and crimp some 2.8mm female crimps to the wires for Japanese buttons aka Sanwa or Seimitsu buttons.

Only tricky part is creating a new daisy chained ground wire for the P1 & P2 buttons.

Hope that helps 🙂👍🏼

Cheers
 

Silvercity

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Thank you. The daisy chain is the piece I am confused about. Do you have to have one? Can you not just plug it in the same as before? Does the daisy chain start from any of the existing button grounds?
Many thanks
 

xMasterPx

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12 (100%)
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153CR
Thank you. The daisy chain is the piece I am confused about. Do you have to have one? Can you not just plug it in the same as before? Does the daisy chain start from any of the existing button grounds?
Many thanks
Like you mentioned every button/input needs a ground connection.

Usually there will be one ground wire from Jamma harness that is daisy chained between the buttons (same for joystick directions inputs).

I would say in most cases there is ground wire daisy chained between buttons 1, 2 & 3.

Another ground wire between buttons 4, 5 & 6 is usually present because the harness doesn’t usually have those buttons and would have something called kick-harness cable for CPS1/2 & 3 boards.
 
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