Continuing to document my Target Alpha relays. Trying to understand what actually releases the Reset Control (AX) relay.
Added confusion with how the Hold Relay (R) is actually in opposite state than shown on the schematic, because power is off. In diagram attached, R should be open when power is on (Hold relay is on after game is reset)... then when tripped by a hard tilt/slam, it will trigger the Last Ball interlock (no more balls for you!), and apparently release the AX interlock as well (come to that again later).
So... assuming no slams for now, then the path to trigger releasing the Reset Control Relay AX after startup sequence should be a pulse on 4C, going through both P5A and First Ball Relay (DX).
First Ball interlock is set up during the startup sequence, so it should be closed as shown.
I'm not totally clear on what P5A is, and when it is on / off. I believe it's "player 5"... ie. the end sequence "after player 4 finishes their last ball". Is that correct? I'm also assuming it's normally closed until P5A is activated after end of player 4 last ball, but during startup it could possibly still be open from previous game if not reset yet.
So... is AXR actually being released as soon as the First Ball Interlock DX is set, or is DX interlock set but AXR not released until something happens to close the P5A switch later during startup sequence. What is the sequence of closing switches... DX>>P5A>>Motor 4c or P5A>>DX>>Motor4c ?
Also... what is the purpose of the slam triggering the release of AXR? If someone slams the machine during the startup sequence, it stops the startup sequence by releasing the Reset Control Relay immediately?