S.C.I. - Special Criminal Investigation Pinout

Outside of Time

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Hello, I'm trying to repair a S.C.I. - Special Criminal Investigation PCB. I'm repairing it for a friend so the cab is not at my house. I have a Jamma test rig. I want to hook the PCB up to the test rig with a jamma adapter, but I can't seem to find any relevant information about the Pinouts. I know that the video, sync and sound are different from the jamma standard, but that's about it. Any information would be much appreciated.
 
Manual and pinout here

https://www.arcade-museum.com/manuals-videogames/S/SCISpecial Criminal Investigation.pdf

When you make the adapter, just hookup the 5v, ground and make the cable for the video. Once you have a booting game with good video, then start troubleshooting the audio, controls etc.

I am not sure if the U.K. Version (the manual is for that) has different pinout. Just make sure what the ground and 5v pins are on the edge connector and that they match what the manual says. For this, check continuity between what you think is the 5v on the edge connector and the 5v pin on any TTL IC. Same for the gnd. You don't want these reversed when you make the jamma adapter.

I don't know that type of connector you need for the video but you can probably deduce it from the pin to pin spacing. As for which pin is which for the video, all you care is the sync. If the game is standard resolution and your multimeter can do frequency measurements, the sync pin should give you about 15khz. You can deduce the RGB pins after that.

Good luck!

Paris
 
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