I was playing good old frankie when I notice the auto-launch plunger on even though there was no ball in the shooter lane. I shut down the machine and checked out the coil to the auto launch. One end of the diode broke off and was not connected. I actually ended up replacing the coil and that had a new diode installed. I power on the game and it does the same thing. The auto launch coil is activated as soon as I turn on power to the game. So would my next repair be the transistor tip? I attached the page from the manual but would I be replacing the tip at q44? Just want to see if that seems the next logical thing and if that is what would get damaged if a diode broke on a coil. Also let me know if you have any other things I should check as well. Thanks for the help!

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So having problems solving this one. Auto launch coil is activated when turning on the game. It’s not the transistor or logic chip on the mpu because I tested out a good working mpu and it’s doing the same thing. I also changed out the coil and diode. Any ideas what i check next? Could it by tip q5 on ppb board? Thanks for the help!

Can someone just confirm to me the wires are soldered on the right? The left is the yellow-purple and the the right is the purple-brown wires?

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The coil is new and the diode was installed with the coil. The so in the picture, the yellow/purple is on the left. The banded side of the diode it on the left as well.

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i tested q5 and it tested out of range from the other tips on the ppb board. So i ordered a few of those and will swap it out and give it a try. Pretty sure thats the issue.

That was it. Tip36c at q5 on PPB board! Up and running!