Haven’t turned this on in a long time. Was having a switch issue before and was going to see if I could figure it out this weekend. Went back over the ground mod in the bottom and made sure all was in the wire but good and had good contact to the base. Turned it on and the flashers on the right side and other playfield lights would turn on and off. The roulette wheel just kept spinning and the game would just beep every few seconds. What the heck is going on?

Awesome. Thank you for the tips. I will be trying that out. When you do the ground mod, are you doing it like tnt? I did the first time but today I trimmed the bare wire down. It ended up being a huge ball and just didn’t like the way it looked. Thinking maybe I may have trimmed it down to much? I will try the piggy back board and will report back

Ok that is what I did but how much did you strip off? Inch or two? I just pushed on the piggy back and it booted but roulette kept spinning. Will reflow it tomorrow

Ok so I reflowed piggy back board and this has had work on it before. The board has been replaced with a Great Plains board and is socketed. I tested continuity on the pins and all good there. Game boots up. Also pulled power supply and reflowed pins and dialed it in so it is at 5.08 at pin one on rom. So now I have attract mode and can coin up. Started a game and the solenoid to kick the ball into the trough keeps firing and I have 3 balls in the trough already. Another thing I did was go through test mode and in switch test every switch ending in 1 and 3 are closed. Trying to figure where they are tied to being in a horizontal position in the switch matrix. Then also 65 and 70 are closed. Making some progress so happy with that

And the music is not playing when I started a game. You do get the sound of coining up when putting credits in

I do have a manual and have been going through it. The outhole is switch 65. This is the solenoid that keeps firing. In test mode it shows closed. So I’ll check that later tonight. So looking over this matrix, not sure but assuming if switches that are tied together horizontally in the matrix are tied together by the ground?

So just checked the outhole switch and it keeps firing. If I get time tomorrow I’ll check my ground mod again.

It is a 3 ball game. I will pull it tomorrow and post a pic. Working at home so I can sneak off. The ball isn’t ejecting into the shooter lane. It’s the solenoid at ball end that keeps firing

So the white coil is the one firing and the green doesn’t kick the ball into the shooter lane. During test mode all works. Strange thing is green coil fires under lamp 12. Not during solenoid test.

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so when I went into switch test today. everything with 0,1, and 3 ending was closed. could that be tied to the ground?
and what could be causing the outhole coil to fire?

So I’m going to check the diodes. Is there anything in the manual show which diode board these switches. And shows which diode goes to switch

So if I’m reading this right, I need to check 4A7J1/P1, 2A7j1/P1, 3A7J1/P1 should be the diodes tied to these switches correct?

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So double checked the ground mod and all good there. Pulled the board and seen this. It’s tying chip z26 to a capacitor. Is this right?

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Ok cool. Thank you. I’ll leave it be then. Looked over the connectors and all look good. Will be looking over switches for anything being off