Quoted from Lindsey:
Actually, it wouldn't do nothing and the game would NOT boot. But you're right about the 7th flash. Remembered later that we're talking Bally and it would flash 6 times. Whoops
No +12V would also cause the MPU LED to lock on as it's part of the reset circuit.
The PF solenoid fuse is just for the 43v on pf. This fuse does not interupt the MPUs 43v line it uses for zero crossing. Blown pf fuse game will boot, chimes, flippers, knocker work, but no PF solenoids. Blown 43v fuse on the rectifier board = no boot because no 7th flash.
The LED on the MPU is powered by 12v and not 5v. No 12v, No diag led.
Quoted from Superchicken:
Nope. With the lift tilt stuck closed it just sits there dead. Turning the cabinet on end to move to move the game, jams the ball to the end of the guide. Because of this I always remove the lift tilt ball.
This is incorrect. Stuck slam switch will cause the game to reboot once attract mode starts and repeat over and over. It will not stop the power on self test flashes. Trust me on this one. The software is not monitoring switches until attract mode. You can try it yourself, hold closed the slam switch on the coin door.