I have everything working on my Pinbot except for the top jet bumper. Everything else on the game is perfect. Game asks me to adjust switch on the bumper but all looks ok there at the switch. I replaced the solenoid just because but nothing. Any help would be appreciated.

Update what I did today. I cleaned the switch. On edges test I get nothing. I tracked the wires down. When I close the switch Continuity all good. Checked at the connectors under the playfield continuity all good. Checked out the connector at the board continuity still good. So, something on the board? I kind of doubt it because everything else works perfectly. Also if this helps the game was alerting to that switch before I cleaned it “adjust switch” at start up. After cleaning that went away but still doesn’t work. Thanks for all the help.

I get nothing from the switch or the coil

Thank you so much @completist!

Update. I have been in talks with a few people and wanted to pass on what I learned. First, the testing. I was told from one individual “When it comes to special solenoids how i test is i take a jumper and test the circuit 1st to see if the bumper pulls in in coil test. If it doesnt. I use a jumper and touch the metal tab of the transistor with a chassis ground. If it still dont move its a open circuit to the coil. If the ground jumper pulls in the coil then i go into the 7402 and the 4401 or tip 122.” So I did this and got the bumper to work when grounding the transistor. Was told to pull chip at U50. Found a bent pin! Now, need to know where to get the correct chip to replace the broken one.

Final update and fixed! Sn7402n Is what you want if anyone needs this info for the future. Big thanks to Mikehabel for all the help. Check out his boards on eBay.