I am trying to help my Dad gets his 77 Golden arrow to score correctly. Still a newbie to em fixing so I appreciate your help! I’ve got the schematic.
Current issues.
-100s score reel will not advance the 1000s
-when hitting a 1000 point target all the reels reset to zero while still playing the ball.
I checked and cleaned switches on score reels, ball count unit and on l and m relays. Where do I go next?