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Main => Main Forum => Topic started by: 800screws on July 09, 2015, 11:18:28 am

Title: neo geo wiring for the credit lights........
Post by: 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?
Title: Re: neo geo wiring for the credit lights........
Post by: keilmillerjr on July 09, 2015, 04:25:28 pm
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.
Title: Re: neo geo wiring for the credit lights........
Post by: Malenko on July 09, 2015, 04:48:12 pm
Get an LED graphic printed and back light it. Same effect less pain in the ass
Title: Re: neo geo wiring for the credit lights........
Post by: Slippyblade 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.
Title: Re: neo geo wiring for the credit lights........
Post by: 800screws 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
Title: Re: neo geo wiring for the credit lights........
Post by: Slippyblade on July 10, 2015, 03:39:44 pm
It means to attach all the signal lines to ground, guaranteeing a 0 voltage.
Title: Re: neo geo wiring for the credit lights........
Post by: 800screws on July 11, 2015, 09:48:16 am
thanks!