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Author Topic: Bally home pinball model service information  (Read 8124 times)

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Ken Layton

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Re: Bally home pinball model service information
« Reply #40 on: November 16, 2016, 01:05:16 am »
Updating this old thread. The original designer of the "Pinball Mind" board passed away from cancer several years ago. His work, drawings, designs, etc were turned over to Marco Specialties who promptly did absolutely nothing and shelved it. So that's how things sit right now.

If anyone would like to design new modern boards for the Bally home model pinball machines, PLEASE DO IT. A modern replacement board is sorely needed. John Robertson at flippers.com has made some replacement cpu chips to bring the original boards back to life.

ed12

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Re: Bally home pinball model service information
« Reply #41 on: November 16, 2016, 03:30:22 pm »
ken
do u know which micro he used ?
or would like just to call john and ask ?
maybe i can help as i do have all of the admiral (bally-home-pin) stuff

ed
Shipping something from the U.S. to Canada for repair/exchange?  Please use USPS to avoid (additional?/excessive?) shipping charges.  PM me if you have any questions.

Ken Layton

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Re: Bally home pinball model service information
« Reply #42 on: November 16, 2016, 11:52:12 pm »
I believe the cpu chip he was using was a 65C02.

Here is an archive of his site:

http://web.archive.org/web/20120827232720/http://www.nightmarepark.com/Pinball%20Mind.html

Attached is a 3D drawing of the board. I do have the board schematics Tony had drawn up, but it's a 500K pdf and forum file size restrictions prohibit it. I could email it though.


ed12

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Re: Bally home pinball model service information
« Reply #43 on: November 17, 2016, 12:46:36 am »
please do
i was  looking for the sdk also

ed
Shipping something from the U.S. to Canada for repair/exchange?  Please use USPS to avoid (additional?/excessive?) shipping charges.  PM me if you have any questions.

Ken Layton

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Re: Bally home pinball model service information
« Reply #44 on: November 17, 2016, 01:59:27 am »
A better archived webpage has been found and it has the high quality pictures of the board still there.

http://web.archive.org/web/20141208105120/http://aleg.eu01.aws.af.cm/tony/Pinball%20Mind.html

Ken Layton

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Re: Bally home pinball model service information
« Reply #45 on: November 21, 2016, 05:58:17 pm »
Great thread Ken. Figured I'd add to it for future use purposes.




I picked up this Fireball earlier this week that was pretty damn cheap and SUPER clean but didn't work. 5v and 12v were dead and R101 position in the 22v section of the power supply was charred like a mofo. After reading this thread I ended up wiring in a switcher to handle the 5v & 12v and rebuilt the 22v section with new transistor, caps, diodes and resistor. Once all that was done, the damn thing fired right up and the ball was ejected.

All was well except the pop bumpers were awful. Left one worked 85% of the time an right one worked 15% of the time which was determined to have a bad micro switch. The problem with the set up is the spoon switches are mounted to a big pcb under the play field and conventional pop/spoon leafs would not have worked without major modification.




Stock pcb mounted switch.




Got the idea in my head to use a couple williams leaf switches from a defender panel I had kickin around. Cut the spoon portion off the arm of the micro switch and soldered it to the switch that I had bent.




Switches installed.




PCB back in place with switch wires soldered right to board.


Game is actually pretty fun when you have pop bumpers that work 100% of the time.



good day.

A good substitute would be either of these complete assemblies:

http://www.pinballlife.com/index.php?p=product&id=3776

http://www.pinballlife.com/index.php?p=product&id=3290

chopperthedog

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Re: Bally home pinball model service information
« Reply #46 on: November 22, 2016, 09:19:28 am »
A good substitute would be either of these complete assemblies:

http://www.pinballlife.com/index.php?p=product&id=3776

http://www.pinballlife.com/index.php?p=product&id=3290
Those would work, but with major modification to the pcb (cutting notches and adding jumpers). There is not enough clearance to get a conventional spoon switch in there, which is why I went with a williams leaf with the crazy bend so I didn't have to hack up anything. If you look at the pic in my Evel Knievel home model thread you can see bally rotated the pop assemblies a complete 180 so that standard spoon switches could be used.



good day.

Ken Layton

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Re: Bally home pinball model service information
« Reply #47 on: November 22, 2016, 10:56:44 am »
Looks like a guy could get a nibbler going to the right in that picture and cut away part of the board unless there were traces on the top of the board there.

  
 

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