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Author Topic: neo geo wiring for the credit lights........  (Read 1247 times)

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800screws

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neo geo wiring for the credit lights........
« on: July 09, 2015, 11:18:28 am »
think im gonna gut my neo geo 6 slot cab and make a jamma atomiswave out of it.........I want to keep the lighted credits still working on the control panel....is there a wiring diagram for them? what voltage powers them? I don't care if it stays on "0", just as long as they are lit....
can I just supply power to the board to keep the "0" or is there more to it than that?
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keilmillerjr

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Re: neo geo wiring for the credit lights........
« Reply #1 on: July 09, 2015, 04:25:28 pm »
Quote from: 800screws on July 09, 2015, 11:18:28 am
think im gonna gut my neo geo 6 slot cab and make a jamma atomiswave out of it.........I want to keep the lighted credits still working on the control panel....is there a wiring diagram for them? what voltage powers them? I don't care if it stays on "0", just as long as they are lit....
can I just supply power to the board to keep the "0" or is there more to it than that?

If that be the case then just probe it with a multimeter. But its pointless if it won't be functional.
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Malenko

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Re: neo geo wiring for the credit lights........
« Reply #2 on: July 09, 2015, 04:48:12 pm »
Get an LED graphic printed and back light it. Same effect less pain in the ass
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Slippyblade

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Re: neo geo wiring for the credit lights........
« Reply #3 on: July 09, 2015, 05:06:06 pm »
I've looked at those boards and the circuit uses a couple of BCD encoders.  So I am thinking you could simply supply a power and ground to the appropriate pins and then just tie all the signal lines low and they should display zeroes.
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800screws

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Re: neo geo wiring for the credit lights........
« Reply #4 on: July 10, 2015, 01:57:08 pm »
could u explain "tie the signal lines low"? not sure what that means....but that seems the route im gonna take
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Slippyblade

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Re: neo geo wiring for the credit lights........
« Reply #5 on: July 10, 2015, 03:39:44 pm »
It means to attach all the signal lines to ground, guaranteeing a 0 voltage.
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800screws

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Re: neo geo wiring for the credit lights........
« Reply #6 on: July 11, 2015, 09:48:16 am »
thanks!
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