(Topic ID: 191064)

Strange problem with my Blue Chip

By drsfmd

6 years ago



Topic Stats

  • 9 posts
  • 3 Pinsiders participating
  • Latest reply 6 years ago by drsfmd
  • Topic is favorited by 1 Pinsider

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#1 6 years ago

It's been a few months since I last played my Blue Chip. When I played it earlier today I discovered a strange problem- if I hit the center hole, I immediately drops the ball count unit by 1. In looking at the schematic, I can see no relationship between the two. Thoughts?

#2 6 years ago
Quoted from drsfmd:

It's been a few months since I last played my Blue Chip. When I played it earlier today I discovered a strange problem- if I hit the center hole, I immediately drops the ball count unit by 1. In looking at the schematic, I can see no relationship between the two. Thoughts?

Isn't the ball count unit a step up / full reset unit? Can you actually see the reset coil on it firing?

#3 6 years ago

Hi drsfmd
I like to have the JPGs I post in a form "746 times less" --- I show a snippet of the ipdb-schematics --- squeezed.

I can create an connection when I make the Score-Motor-Switch "1-B" (encircled red in the JPG) FAULTY ALWAYS closed. The "marked green" switches are entitled to close / to be closed at the time Your fault happens --- and it happens in the pin to be SCM-2A and SCM-2B: They sit on the SAME Wheel --- actuated AT THE SAME TIME.

Do not hurry with "adjusting SCM-1B" --- check my theory: I assume Your pin starts every new ball given with ONE bonus given --- if so: With my "faulty always closed SCM-1B" - when Your pin changes to next ball: You should see Your Bonus-Unit-Step-UP-Coil pulling, pulling, pulling all the time the Outhole-Relay is pulling. So look in Your pin --- play a ball, loose the ball ... Outhole-Relay starts pulling, stays pulling for a while --- question: What does the mentioned Bonus-Unit-Step-UP-Coil do at this time ? Pull and let go as the SCM-1B is good ? --- or: Pulling as long as the Outhole-Relay is pulling means SCM-1B is faulty always closed (?). Greetings Rolf

0Blue-Chip-Work-02 (resized).jpg0Blue-Chip-Work-02 (resized).jpg

#4 6 years ago

Thanks Rolf! I won't be able to look at it until tomorrow- will report back!

#5 6 years ago

Rolf, I don't know how you do it, but you're absolutely brilliant! If we had "gold" like Reddit here at Pinside, I would buy it for you!

You were absolutely correct about 1b. It was tightly pressing together, and I'm a little befuddled about it, as it played fine a few months ago... maybe the recent high humidity we've had caused it. Either way, it's fixed now. Now I'm on to trying to figure out my most recent acquisition... https://pinside.com/pinball/forum/topic/anybody-good-with-genco-schematics#post-3814400

Cheers!

1 month later
#6 6 years ago

Sigh. I had to move the game from one side of my game room to the other, and now when it drops from 2 balls to go to 1 ball to go it also goes into game over. I don't know why a game that has been 100% reliable for years is suddenly giving me these odd problems.

#7 6 years ago

Check the zero switches on the ball count unit. They've very sensitive

#8 6 years ago

Good idea. I did give that unit a clean and lube recently. And the game did get jostled around a bit when it got moved.

#9 6 years ago

zacaj , you were exactly right. Must have gotten bumped when I move the machine yesterday. A few seconds with my switch bender fixed it.

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