I'm pulling what little hair I have out trying to fix an issue with playball.
What is supposed to happen...
At start of each ball, player "shoots" ball by pressing right flipper button. This causes the ball shooter solenoid to shoot the ball up into the playfield. If the player doesn't register a 10 point or 100 point score change the machine will automatically reshoot the ball without player pressing the right flipper. This insures that if the shot ball doesn't register at least 10 points that the player isn't penalized a ball.
What is happening …
On 1st ball of game, everything works as designed (usually). Relay O is engaged. Player presses right flipper button and ball is shot into playfield. Relay O stays engaged until ball has scored a 10 point or 100 point score reel increment. As soon as 10/100 has been scored, relay O disengages. If shooter doesn't score 10/100 then relay O stays engaged and it will cause ball to self launch as soon as the ball present switch has been closed. This is I believe proper behavior.
From the second ball to the last ball (again usually), ball has drained and the ball present switch is closed. Relay O is open as I think it should be until the ball closes the ball present switch. The score motor turns, the ball counter is incremented, the vari targets are reset, relay O is energized and ball is auto ejected.
For some reason the timing is off on the relay O closure. It seems like it closes a split second too early causing the auto reshoot feature to activate.
I've cleaned and adjusted the score motor contacts and have adjusted and verified the adjustment on the double pole contacts on relay O (see photo). Looking at schematic I believe that the O relay must be closed for the shooter solenoid to activate.
Anybody else run into this?
Please help me save my remaining hair!