Quoted from TinkerV2:

Hello mrm_4 ,
I hope these pictures help with your problem. On my research for United Pinball schematics, I only found one for sale at Pinball Resource. When talking to Steve at PBR he said they don't exist though he had one. i don't remember what machine it was for. Probably Oklahoma since that was the only one I could find on the web in pdf format. He might have those diamond bumpers you're looking for. There's a member here steve fury that claims he created a schematic and has it for sale. I find him unreliable when trying to purchase it. I created a net list of the back box wiring, but not a schematic. It helped me troubleshoot the BB and test the steppers and lights, etc... I have that working. I'm going to tackle the PF this winter. I hope I don't need to wire list the whole PF. I'll probably try using the Oklahoma schematic if necessary.
Jack
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Quoted from mrm_4:

Hey United pin owners, Im having a tough time with this Monterrey.
This game is almost done except one last piece that’s giving me heck. When I start a game the start up sequence does the following:
-Pulls the ball trough coil up and holds it
-Pulses the game counter
-Pulses the credit wheel down one credit
-Pulls the small coil that clears the big “millions stepper” in the back
-pulls the coils to clear the 2 bonus steppers under the playfield
BUT WILL NOT ENGAGE THE SCORE MOTOR
so all the coils just hold on and buzz like crazy until I manually engage the score motor relay and then the game resets. Then plays perfectly. Score motor pulses when switches score and etc.
I have gone through every switch on the score motor and under the playfield 10 times, all clean and gapped perfectly.
But for the life of me I cannot trace what switch on the start up relay fires the score motor.
Anyone with a wisconsin or even a monterrey have a suggestion?

Quoted from SpyroFTW:

I had this same problem and spent more than a year trying to figure it out. I never found the exact problem, but after dicking with it for more than a year, it is now working. I have a schematic for Paradise that I can send to you if you want. Looks the same. I will try to remember some of the things I did to stop the coils from locking on.

Quoted from SpyroFTW:

Wow. I would have never found that issue. Good for you! Glad you got yours working. I still need to make wood rails and lockdown bar for mine. Would love to check yours out and your tmnt as well. My girlfriend’s parents live in Kent and we will be visiting for thanksgiving. Hope you find a tilt bob. I dont think I have an extra one