Jama 60-1 Multicade upright cabinet. Upgrade?

[pcresqswmr]

I am about to order a replacement 60-1 board and was wondering if I can get the 412-1 instead without too much rewiring or will I be able to just plug into existing harness? Has anyone done this? Thank you for the help in advance!

[Howard_Casto]

Well if they are both jamma then jamma is jamma.... you can just swap them out.  Take note of the audio though as it isn't always standardized.

[PL1]

Watch for the difference between a standard JAMMA harness and a "CHAMMA" (Chinese JAMMA) harness.
- The CHAMMA harness changes some of the unused pins and grounds (pins 25-27+c-e) into button 4-6 inputs for P1 and P2.
- IIRC when pins 27 and e are connected to ground, a CHAMMA PCB won't boot properly because it thinks those buttons are always pressed.


Scott

[pcresqswmr]

Thank you for fast responses. Replacing board as all cintrols stopped working at once. Continuity checks on all grounds are good. I can' t do anything except watch it boot and cycle through demos.

[pcresqswmr]

New board was no change or improvement. I did find only 11vdc out of power supply so addressing that now. Has anyone seen that take out all controls? I am in Melbourne Beach Florida if anyone is close by and experienced with the 60-1 multicade.