Hi Raff
Don't get me wrong --- I do not like that Your pin has "Balls to Play" (instead of "Ball in Play"), I do not like the feature "every new ball starts with 'one bonus given for free' ". Your pin may have just one fault or maybe Your pin has 2,3,4 ... faults influencing - making the behaviour really strange. So I want to troubleshoot by simplyfying, excluding possible faults - for the moment I would like to concentrate ONLY on SINGLE bonus. See the JPG (I tried to squeeze - this turned out not very good) , see the JPG, the "encircled orange" threebladed Make-and-Brake switches. Look-up in https://www.ipdb.org/files/2648/Williams_1974_Triple_Action_Instruction_Manual.pdf these relays, switches , check for soldered-on wires NOT touching other solderlugs, proper gapping - I actually ask You to sneak-in inbetween the blades some stripes of paper to have parts on the switches open --- please make sure, guarantee: ONLY along "my green lines" current can pass through these switches.
Then do some tests (playing) "Single-Bonus-Mode" -
- what points do You get loosing the ball with 1 bonus ?
- what points do You get loosing the ball with 2 bonus ?
- what points do You get loosing the ball with 3 bonus ?
- what points do You get loosing the ball with 4 bonus ?
- what points do You get loosing the ball with 5 bonus ?
- what points do You get loosing the ball with 6 bonus ?
I would like to have "Single-Bonus-FEATURE" fixed / functioning --- then (maybe) looking at Double- / Triple-Bonus problems. Greetings Rolf
P.S.: I always have the impression "Counting down (Single Bonus) bonus-ladder and adding thousands of points to the Score-Drum" is one feature - but actually there are two features:
- AA - Counting down bonus-ladder
- BB - Adding thousands of points
but we may have a fault in AA or in BB or in both