#StrikesandSpares

The good: Boots up (7 flashes on MPU), takes credits, starts game, scores fine, lights work in both attract mode and during game play.

The not so good: The only solenoids that work are the flippers, no kickers, no out hole, no chimes, etc.

I replaced the 11,000uf cap and a missing TIP102 transistor on the driver board and used a test lead to check each transistor to ground. All 4 chimes fire as does the coin lock and the relay on the driver board, but nothing else. Is it possible that 13 of the 19 TIP102 transistors are bad?

Also I have an Alltek Ultimate Solenoid Driver Board that I popped in and it won’t even boot with it in, I just get a solid LED on the MPU

Any suggestions would be appreciated!

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So sure enough 2A under playfield fuse was blown, I replaced then manually tested each solenoid (from transistor to ground) and they all fire!

Problem is on boot and on game start the out hole and saucer solenoids fire a bunch of times erratically, flippers are live all of the time, but no other solenoids work. Also closing any playfield switch causes only these two solenoids to fire.

Switch test displays zero, and all switch numbers display properly when activated.

Solenoid test: As it auto walks through them, out hole fires on 1, 5 and 7; and saucer fires on 2, 3, 4 and 6 but no other solenoids fire as display counts up.

New issue with this S&S, game plays great with new power, driver and MPU boards, but about every 3 or 4 games the 100’s just starts scoring and I have to power down to get it to stop.

While it was happening I disconnected J3 plug on the MPU which stopped it, eliminating that as the problem.

I don’t think it’s a stuck p/f switch because it plays fine sometimes. I think it may be a bad disc capacitor on a switch. I have new replacements, is there any easy way to test them while in the game with my multimeter?