I have a 72 williams 4 player Fan-tas-tic - has an odd issue -if 2 or more players are playing - for every points player 1 scores - the 10 point counter on the 2nd player advances by one. When the 3rd or 4th player is playing it does the same thing - 2nd player 10 points advances by 1 every 100 points the 3rd or 4th player gets.
Also- when the 2nd player is playing - the 50 point rollover buttons on the playfield advance the 2nd player by 500 points - not 50. All other players when rolling over the buttons get 50 points.
I take it I have a bent switch somewhere ?
When the players reset - they all reset to 00000 fine.
I should mention that when the issue happens with #2 10s - sometimes the solenoid on the drum unit counter stays energized - it gets hot and I can hear it buzzing. I know this is a common issue with williams - just trying to find out more details & how to fix it.
Where should I be looking ??
Any help or advise is appreciated.
Matt.