I started debugging an SI board today. There is a staric image of garbage on the screen. The Midway troublehooting guide suggested looking at RAM. I saw RAM was working but the WE pin is dead. Tracing back to the micro, I see it is being held is reset. I was trying to trace back to what controls the signal in the schematic and it looks like it goes to a pin 16, but I can't find the other end of the signal. Is anyone familiar with where that is on the schematic or on the board.






