Recent content by tkebean

All the chips on the board are getting 4.96-4.98 volts except for one, the chip at 3D, which is getting about 4.32 volts. Could that be the issue? I even tried completely unconnecting the coin door to make sure it wasn't anything to do with that and the problem still exists with it unconnected...

I got some help reading the schematic and what/how to test the voltages on the board from a co-worker so I'll be able to fire it up and test this afternoon. I'll post the results later today.

With the test switch off I get the grid and with it on I get the dip switch settings. Either way it constantly resets.

The slam switch is open and the interlock switch is wired closed. If I close the slam switch while it's constantly resetting it stops resetting and freezes on the grid screen.

The 2 wires that are supposed to go to the jam switch are just connected together. I tied them off so I wouldn't have to worry about the door being shut while I'm working on it. What's the best way to test the voltage going to the board and the EEPROMs? I have a multimeter just not 100% on what...

I'm working on restoring a Ms Pacman cocktail table. I've been able to get mostly everything back up and running, but not everything so here we go.... When I fire up the game, all I see is a white checkered screen, like a big grid with about 1/2" x 1/2" squares. The game also seems to reset...