The old 7408 chip was ok , i just changed it in case it was stressed out.
The transistor is Q21 , goes back to IC1 ,7408 and then to the 6821
I was sure the 7402's only controlled the special solenoids.
Either way , every solenoid transistor on the board ,standard and special all fired properly on the test bench.
Yep your right, I was looking at the right hand side of the schematic "switched soldenoids"
Weird how when the transistor is grounded the coil fires???
Got to be something we are not seeing here
