I had access to a DSLR for a few hours, so here are some high resolution shots of a SEGA 32X development board: https://www.mediafire.com/?s1x5kp5m9bfp8ej (575mb archive). There's not much reference of this thing around, maybe they'd be useful on a wiki somewhere. On a related note, my aim is to get this thing working. Does anyone recognise this type of power connector, and could advise on how/where to get one to fit?
It looks like some sort of keyed molex connector. U would need to find some documentation on this board before plugging in any power. It looks custom but it would be easy to build your own power cable once u know the pinout. It may use unique voltages so using an atx power supply, u may need to build some extra power regulator circuitry to get the voltages u need.
That's an AMP (now TE) "MATE-N-LOK" series connector. My best guess for the mating cable mount socket is AMP P/N 1-480702-9 Looks plausible, at least: http://www.te.com/usa-en/product-1-480702-9.html
Looks like the right shape. I'll see if RS can get hold of that for me. EDIT: Farnell has them, I have an account with them already http://uk.farnell.com/te-connectivity-amp/1-480702-0/housing-plug-single-row-4way/dp/285160 I've only got the programming docs and SDK, and I can only find evidence of one more of these units in existence, and the owner no longer has it. I'll keep digging around, though.
That looks promising. I tried a quick look for power documentation on that thing but like u said, information is really scarce. Where did u get ahold of that hardware? I found this on Sonic retro http://forums.sonicretro.org/index.php?showtopic=20198 But I'm at work so I can't view the files, might be some info in there, even if it's just SDK stuff. Maybe try emailing a company involved with the development board to see if they have any hard copies of the power specs.
You could likely figure out the power requirements pretty easily with a multimeter... Look up datasheet of a common chip, find ground pin and see which has continity on the connector. Then see where your other connectors go and the power specs of those chips etc.
