Super Pacman woes...

darthphunk

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I've been piecing together a super pacman for over a year now. I finally have all of the parts to make a working game... and I can't get it to work.

When I picked up the cab, someone converted it to a Gunsmoke. Whoever converted it was nice enough to leave everything inside fairly intact. Still has all the power guts. Harness was a little too hacked up for my tastes, so I put a new one in there.

After installing everything... nothing. Monitor powers up, the board does not boot up.

I tested the power from the Power supply and I am getting +5 and +12 dead on.

Harness looks fine. I checked and I am getting the same voltages on the PCB side of the harness.

I took the board to a friend who has a super pac, and popped it in his cab, and it came right up.

Any advice?
 
This may be a pain, but I'd recheck the harness. Find a schematic and be sure you're getting voltages as well as grounds on all your connections. If you really want to be anal, you can do a continuity test on every wire to be sure you have a connection on each end. Those have failed me as once I had a intermittent connection on a ribbon cable that a continuity test failed to find.
 
look at the schematics and verify every pin/connector and wire

you know it works so, somethings off/bass ackwards somewhere
 
WELP

I've been working off of the schematic and once I realized "-SENSE" was the -5v line... I'm getting zip on my meter from there, and the -5v adjustment pot on the MCR board does nothing.

That's gotta be my problem.
 
Sounds like it probably is. I replaced the power supply in my Super cocktail a while ago. I used a computer PS but I don't remember hooking up the -5V. I guess I must have had to, otherwise it probably wouldn't work. I haven't opened it up in a long time. When you get yours running, post some before and after pics. I still consider a Super Pac upright to be my #1 grail.
 
I had a spare switcher laying around so I popped that in there.

Worked great!

For about 30 seconds and then the switcher started pouring out smoke. Board looks fine, I double checked my wiring and I didn't goof up anything. I just ordered the Arcadeshop kit and I'll fix my harness and throw that in there.

Woohoo! Can't wait to get this in the basement barcade...
 
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