It had been working pretty good lately but the past week it's been happening more and more. I'll be playing and the display will just freeze. Usually the game will keep playing but sometimes one of the upper flippers (could be either but usually just one) will stop working. This morning the dmd just froze, then the upper right flipper then the lower left stopped working. The sound actually stopped too. I went to the power driver board and measured the voltage:
TP 1= a fluctuating 16v, +/- around .4v
TP 2= 4.93v
TP 3= 11.81v
I restarted the machine which usually fixes it. This time it didn't. So I turned it off again and started pushing on all connectors and chips. Thie few times a restart by itself doesn't fix it this always does. Sure enough, turning it on and it worked perfectly. I measured the test points again.
TP 1=a steady 16.2v
TP 2=4.94v
TP 3= 11.81v
I'm not sure if this means anything but LED 3 is out and LED 2 (I think it's 2, it's right next to 3 but hard to see the number) was a very erratic blinking when the machine was broke. When it was working I think the led was off but when the game ended it was out.
Thanks for any help.