With the jumpers as described above in place:
The resistance in circuit of the resistor on the hold relay is 15 ohms.
The resistance of the selenoid on the hold relay reads 0. I proceeded to check the following tilt switches:
The door slam switch: closed and has continuity
The ball tilt assembly: open, but records continuity when the ball makes contact with the switch
The plumb tilt: open but registers continuity when the plumb touches housing
The three bounce switches on the bottom board. All closed and registers continuity when closed and none when open.
The bounce switch under the playfield is closed.
The game is still in the same state as first described but with the following changes:
The game will not reset on ball one
The game will reset on ball two-five and the tilt lite no longer comes up on these balls
I went through all the switches and wires. All seem to operate correctly. With the wires, there is no overlapping shorts or solder splash.
I checked and recleaned all the Jones Plugs.
I do have to manually advance the ball count unit three times (on the third go) to get to ball two lite.
The hold unit just doesn’t pull in.