Please help with this nightmare King Kool.
In a 1 or 2 player game the game advances to player 2 occasionally when the 1000 pt relay is activated. Only happens when 1000 pts are scored. Does not happen when 10s 100s or 10000s is scored.
Doesn't erroneously advance again (it does not go back to player 1 when 1000 is scored.)
Happens pressing the L relay manually - or if 1000 scored on playfield. There does not appear to be any shorted wires or issues with the L relay stack.
I can see the player unit advance coil engage when it happens.
As expected, the score motor does not run when 1000 pts are scored - and I verified score motor 1a second switch is open at rest.
The player 1 and player 2 reset switch stacks on the player unit seem to have correct gaps and the game otherwise scores and resets correctly.
Looking at the schematic I can't see a correlation between 1000 pts and the player unit advancing.
I attached a pic of the player unit part of the schematic.
Any ideas where to look? Thanks!