Im at my whitts end with this game! My junk yard has an issue when the color dmd is installed that the optos trigger with the flippers, or 1 opto will trigger another opto. It is usually the sneak in/super jackpot that gets triggered, but sometimes the trough will kick out another ball.

I have a new cpu, new security chip, the new code, new opto board, and a newer driver board. The unreg 12v tests right around 12.4-12.5 with the color dmd installed. I think that is slightly low for unregulated 12v. It is a rottendog driverboard.

If i put the original dmd in, everything works as it should.
Any help would be much appreciated!

I checked unreg 12v with the dmd unplugged and it was 12.9-13

I would try an original driver board if i had one. I will be selling the game soon and the buyer would like the colordmd.

I think i am losing voltage on the opto board. It test 12.5v going in, but only 11.4-11.6 going out. Its a new board, so im looking into a possible shorted switch or something

I bought it with the rottendog in it, so no original. Ill have to see if i can find one to borrow. Thanks for the suggestions!

I will grab a pic in just a min. They are seperate, and i have tried different variations on the plug ins.

I should mention, the original problem i had was the flippers stopped working, there was an eos closed error on the switch matrix. I ended up replacing the cpu, and that solved that issue, but it was after that that this started.

On the opto board, i unplugged j1-4 and the 12v pins at j2 and j4 read 12.5v. If i plug in j1 and j2, the pin at j4 reads 11.9, so a bit of a drop. If i switch them, and plug in j3 and j4, unplug j1 and 2, i get 12.5 at the pin on j2. So something on j1 and 2 is causing a voltage drop