bones3010
Member
I have a friend I'm trying to help by resurrecting his old SI. When I got involved all it had in it was the original high-voltage block, a hacked-up harness, and the original monitor. Not much to really work with. I ended up getting him an "untested" CPU board set and began the task of trying to decipher the harness wires and what went where. The guy before me apparently tried to get power running by using what appears to be a PC power switcher(!). I have no idea what he was thinking, so since I was having trouble locating an original power PCB I decided to try out a HAPP switching power supply like in the newer JAMMA machines. After making some basic connections next thing you know after trying to get some sign of life I plugged it in and promptly blew fuses on the high-voltage block AS WELL AS the little fuse inside the switching power supply! ...Clearly something is REALLY hooked up wrong here.
So I'm starting from scratch. After rechecking my work I'm hopeful that no surges made it to the CPU. But in looking over the schematics I'm wondering if it's even possible to get this thing running on a newer switching power supply since there are a bunch of wires labeled for things I'm not even sure what they do (i.e. "sense" and "com").
So my primary question is this: CAN this thing be resurrected using a switching power supply? And what do some of these odd wires plug in to?
If not, does anyone know of where I can locate an appropriate working power board for this machine? I look on ebay but there are 100 different space invaders power boards apparently, and none appear to be what I need, or are either untested, or confirmed not working.
Thanks in advance!
-Rob
So I'm starting from scratch. After rechecking my work I'm hopeful that no surges made it to the CPU. But in looking over the schematics I'm wondering if it's even possible to get this thing running on a newer switching power supply since there are a bunch of wires labeled for things I'm not even sure what they do (i.e. "sense" and "com").
So my primary question is this: CAN this thing be resurrected using a switching power supply? And what do some of these odd wires plug in to?
If not, does anyone know of where I can locate an appropriate working power board for this machine? I look on ebay but there are 100 different space invaders power boards apparently, and none appear to be what I need, or are either untested, or confirmed not working.
Thanks in advance!
-Rob