OK, I f'ed up. I just got my Devil Riders working beauty, but I needed a slight eos adjustment on the left flipper. I was a bonehead and didn't shut it off (it was in the middle of a game), and of course I shorted something at that point, and the machine went half dark. I checked fuses (all good) and cursed for awhile and then rebooted. It turned on in attract mode with 32 credits, but won't start a game. I try the toggle switch to go through the tests and it works upward only! It won't come back down. So I check displays, insert lights and solenoids... all good. But since I can't back down to 1 and try again, I shut it off and turn it back on. Again, we're in attract mode with 32 credits. Again will not start a game. This time tho, the toggle doesn't work in either direction?! So I try the service button. It resets all the coils, kicks out a ball lie it's going to start a game, and goes half dark. No game. But in a few seconds it goes to test mode and runs through the display test and and sometimes if I press the service button again, it will go to coil test.

This post was originally going to be about how stoked I was with this fine machine and tell the story of how it got here... but now...

Help!

Edit: This looks grim. It looks like I fried the switch matrix, huh? Anybody have a Zaccaria Gen 2 mpu for sale?

Ok... classic Zaccaria Noob error. Looks like I fried the ca3081 chip (at least.)
Dagnabbit!

Thanks guys! Chips and sockets ordered for the 3081 and the 4028 just in case. Gotta local pinhead bromigo gonna install this weekend. If I fried more than that (doubtful but possible), I'll be looking for Dave G.

Hans, are those like the ones barakandl came up with awhile back?

Thanks again... and lesson learned. It's my first Zaccaria!

mark

Nice!