Hey All -
Im new to coin-op stuff, but have been building 3d printers for a long while. i bought a Scorpion DX machine that has a `93 on the id tag. i'll attach some pics. only thing that worked on it was the 120 florescent fixture on the top. opened up the main pcb area and tested the DC output and was getting nothing for 12v, 5v, etc. After trying a PSU from another computer, (24->12pin adapter) i was getting 5v, 12v, but no -12v or -5v.
I got a new PSU that supplies -5v, +5v and +12v, added a resistor to supply 5v to PGOOD and i'm now getting some of the lamps to light up - No magic smoke thank goodness, LCD backlight lights up (no image), player change button lights up, and the top has a couple lights as well.
I made sure that the chassis ground is going to the input ground on the new PSU as well. So my next step is to get a 12v inverter (should show up tomorrow) to supply the -12v to the 12pin connector. Is there anything that you all think i'd be missing? i'll attach some pictures to show you all.
Thanks for any help that you could provide!