Author Topic: Bally 1965 Aces High Restoration  (Read 14679 times)

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mark jackson

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Re: Bally 1965 Aces High Restoration
« Reply #30 on: October 24, 2010, 11:38:42 PM »
...great work on the score motor. You gotta love it when a plan comes together.

Offline ktm450

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Re: Bally 1965 Aces High Restoration
« Reply #31 on: October 25, 2010, 10:11:58 AM »
Nice work mate, great feeling when you get a game working after a bit of hard work  *%*

Offline JD

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Re: Bally 1965 Aces High Restoration
« Reply #32 on: October 25, 2010, 08:30:56 PM »
Great work Nino!

Plenty of patience.

J.D.
There is no law against having fun just yet (but I am sure they are busy are drafting one!)

Offline Bennyfactor

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Re: Bally 1965 Aces High Restoration
« Reply #33 on: October 25, 2010, 10:46:42 PM »
well done Nino,
gotta love it when things work out =)
looking forward to the rest of the restore  ^^^

Offline StuartT

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Re: Bally 1965 Aces High Restoration
« Reply #34 on: October 27, 2010, 09:02:16 AM »
Like your overhaul of the score motor.
Great resto thread.

Offline johnwartjr

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Re: Bally 1965 Aces High Restoration
« Reply #35 on: October 27, 2010, 12:32:14 PM »
wish I understood these a little better, seems like a lot of fun to work on :)

Just not sure I'd enjoy playing them long term...

Offline faza

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Re: Bally 1965 Aces High Restoration
« Reply #36 on: October 27, 2010, 09:21:37 PM »
Great job as usual Nino i wonder if an ultrasonic bath may have loosened the score motor up  !@#

Offline Strangeways

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Re: Bally 1965 Aces High Restoration
« Reply #37 on: November 08, 2010, 10:55:54 PM »

Time for a quick update. The main part of this update is the completion of the baseboard. As I've mentioned befoare - it looks complicated, but if each section is attended to in isolation, you can quickly move through and find problems as you clean and adjust. There are three "trip relays" on this machine. There's a large coil that resets each bank. These trip relays need to be cleaned and adjusted. A quick inspection, and within a few minutes, a couple of problems are blatantly obvious. Here's a couple of pictures I've taken, and you should see the problem here ;

What I've done is manually reset this trip relay ;





EM guys with their trained eye would spot it a mile away ;

That final switch stack (furtherest from the camera), is in the reset position, yet the top contact is still open - it should be closed !





So the FIRST thing to do - and this step is important - is to test the tension on this stack - because that will tell us a lot about this machine. If it is nice and tight, then this machine will be easy to make adjustments, if it is loose (and more stacks are loose) then it means the game has seen a lot of moisture and the backerlite in the stacks will have shrunk over time. Luckily for me - it was tight - and I ensure I go through EVERY stack and tighten any loose screws ;





I can then adjust this switch stack





Then I test its action to make sure the contacts make a proper connection when reset, and open when that relay activates.

I've removed the dual trip relays. SIX relays per assembly, - they are seperate units, but mounted in the same frame. Next to my screwdriver is my flexstone file. I go through 2 - 3 of these per game. First I use compressed air (not too much pressure), and then a business card cut into strips. I go through EVERY set of contacts with the cut business card first, then I use the flextone file. I inspect that I can see a clean set of contacts, then I test the action of the trip relay to make sure everything is working correctly. At the same time, I clean the tie rods (horizontal bars), the rest arm and all other moving parts with alcohol.





After I've completed all three trip relays, I move on to the other smaller relays, and I find this gem of a problem;

Where my finger is - there's a broken contact. I will replace this later, but it pays to visually check each unit for problems like this !





Next we move on to the Advance unit and this simply does not work at all !


It has had a very hard life and the coil looks to be well and truly cooked, and it has melted the plastic plunger arm !





The unit is dismantled, and I can see the plastic plunger has melted ! Luckily, I had a box of hundreds of EM NOS parts, and as luckily, I had one EXACT replacement !






So I replaced it !






Next update will be the assembled Advance unit !

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Offline ddstoys

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Re: Bally 1965 Aces High Restoration
« Reply #38 on: November 08, 2010, 11:12:08 PM »
Great update Nino with plenty of great advice.   Specially the tight switch stacks my first Em had a few loose stacks so I'd adjust the contacts play a few games then problems adjusted again played a few games then bam.   No Internet in those days so when I decided to pull the stack apart noticed they were loose as a goose never played up again.

As for the NOS plastic plunger all I can say is only you Nino only you

Offline shansta

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Re: Bally 1965 Aces High Restoration
« Reply #39 on: November 09, 2010, 12:35:58 AM »
Great update Nino with plenty of great advice.   Specially the tight switch stacks my first Em had a few loose stacks so I'd adjust the contacts play a few games then problems adjusted again played a few games then bam.   No Internet in those days so when I decided to pull the stack apart noticed they were loose as a goose never played up again.

As for the NOS plastic plunger all I can say is only you Nino only you

+1 As always Nino - top reading.

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Offline ddstoys

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Re: Bally 1965 Aces High Restoration
« Reply #40 on: November 09, 2010, 12:38:42 AM »
Not NOS

Offline goodolddays

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Re: Bally 1965 Aces High Restoration
« Reply #41 on: November 09, 2010, 06:31:28 PM »
Great update Nino . Some good tips there .
I need more room ! and more $$$

Offline Bennyfactor

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Re: Bally 1965 Aces High Restoration
« Reply #42 on: November 09, 2010, 07:08:00 PM »
i love the detail you put into your updates Nino, well done

Offline JD

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Re: Bally 1965 Aces High Restoration
« Reply #43 on: November 09, 2010, 10:02:51 PM »
i love the detail you put into your updates Nino, well done

+1

and many thanks

J.D.
There is no law against having fun just yet (but I am sure they are busy are drafting one!)

Offline Retropin

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Re: Bally 1965 Aces High Restoration
« Reply #44 on: November 11, 2010, 12:38:00 AM »
I have a complaint...

that open contact on the switch stack was the very top set of contacts... this NEVER happens.. any EM tech knows that its ALWAYS the very bottom most difficult to get to and adjust set!