I have been working on a Gottlieb Soccer for the last couple of weeks. This board already helped me with an issue with the +25V rail and a broken make-break blade switch. I'm further down the project now and debugging the Startup sequence. I'm stuck on Step 9 (last step) of the Startup Sequence. After pressing the Replay Button, the game will reset the scoring reels (player 1 first, then player 2) and kick-out ball 1 onto the runway. The problem is that after that, when Ball 1 gets into the outhole, the game does not move forward to Ball 2 or any other balls. Looking at Step 9 of the Startup Sequence in the manual, it states:
"The remaining balls that enter the outhole are kicked across the trough switch which pulls in the "P" relay. "P" relay runs the motor. Switches on "SB", "ZB", motor 2c, "P", and motor 1A advance the "player" unit the required number of steps determined by the "player" unit switches and the player relays."
In Steps 1-8 of the Startup sequence, the player unit does step normally. For some reason, when ball 1 goes into the outhole and the "P" switch closes, the player unit does not advance. The plunger on it, marked in red in the photo (I had a movie but can't upload it) tries to trigger, but barely moves. This is what I have done so far to debug the issue, without success:
1) Reflowed the power connections to the coil. While the wires were off I measured the coil resistance, measuring 3 Ohms.
2) When the coil is trying to fire, I help it out by pushing it to actuate. If I do this, the game is able to go through the sequence of balls in play.
3) I jumped all of the switches per the schematic attached. I wanted to make sure the NC switches on the scoring reels or the NC switches on the player unit stack 3 and 4 were not an issue.
Should I continue working my way jumping the other switches in that circuit?