Yet another issue with my Target Alpha.

Set to three ball play. The drop targets add 1000 bonus points on balls one and two per drop target. On ball three, the bonus awarded is supposed to be 2000 points per drop target (double bonus lit).

On my machine, when awarding bonus on the first two balls, no problem. 1000 points per drop.
On ball three, it adds 4000 points (more or less) per drop (double bonus lit).

The score reels are operating properly.
It seems that this is controlled by two contacts wired in parallel on the score motor that trigger the add bonus unit (2D and 3B).
These contacts are only active during the double bonus feature.
All contacts seem to be functioning as they should.
Is this a timing issue? Am I missing something?

Thanks for any help or input!

Eric

Rolf,
as you can see, when the K contact is open (double bonus), there is no other signal except from motor 2D and 3B.
Unfortunately there are other problems right now.
With this machine, it seems there is just one problem after another.

K is at 19-H by the way. It took me a while to find it too!

Thanks for your help!

Eric

K (resized).jpg

Yes. K seems to be operating properly.

Thanks Rolf. That is an option.

Last night I was working on it and it started to work perfectly. 1000 points per drop....2000 points per drop on double bonus.
I played several games with the machine functioning as it should, and then it started again.

shit.

E

Wow Rolf......you have gone to a lot of trouble for this, and I appreciate it!
Give me some time. I will try these things in the coming week.
Will let you know my progress.

Thanks very much, Eric

Ok, so I've been working on my machine the last few days, and the bonus is now working as it should.

What I found:

The bonus stepper was not properly adjusted, and the spring contacts were worn flat and
bridging some of the brass contact rivets.

Motor contacts were operating properly, but not gapped properly.

So, I guess it was a timing issue and/or the improperly adjusted stepper.

Now its on to my next problem. Sometime the machine will not advance to ball two, after ball one plays.

That's another day.

Thank you everyone, especially Rolf, for all of your help!

E