First, Happy Christmas/Holidays/New year fellow pinsiders.
Been fixing up a TA, and got everything working correctly except cannot get the 1,000 points for the lower target on the lower 5 bank. All the others score ok. The bonus stepper counts all the way clockwise and finishes on the final two brass rivets (blue wire, #14 on the schematic) which is I believe the target in question.
bonus (resized).JPG
I have the schematic but found this Gottlieb bonus design very confusing! It seems from above that G must be closed, but as per this snippet the 15th position switch opens when the bonus unit gets to that final position so how does the final 1000 get scored?
I searched pinside and came across this post https://pinside.com/pinball/forum/topic/target-alpha-bonus-issues#post-2327862
And then could not figure out of my 4D switches closed at the right time. Mine looks like the "correct" one in the post above, but I could not reconcile that with the score motor chart
score (resized).jpg
Looks to me that 4D should be closed same time as 1C, so I made a new blade, see below, so 4D closes when 1C is closed.
IMG_5434b (resized).jpg
The old switch is shown here, but this was activating 4D on and off again just before 1C (meaning just before motor came to rest).
IMG_5436b (resized).jpg
Anyway, replacing the blade seemed to make no difference to anything - including target 15 still not scoring!
I hope this is not too long and the experts can chime in with advice. thanks and Happy New Year.