(Topic ID: 205741)

Need help restoring Zaccaria "House of Diamonds"

By Thistle

4 years ago

Topic Stats

  • 4 posts
  • 3 Pinsiders participating
  • Latest reply 11 months ago by Thistle
  • No one calls this topic a favorite


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#1 4 years ago

Hi all,

Growing up, we had the aforementioned Zaccaria machine in our basement as kids, and spent a lot of time playing it and learning the nuances of the game. Fast-forward thirty years and now it's in MY basement, under a sheet being stored. I thought it was high time that my kids learned what a real game is and decided to break it out in dramatic fashion.

Of course, it doesn't work.

My muscle memory kicked in and, after plugging it in I reached underneath to throw the main switch, opened the coin box to manually trigger the coin drop and... nothing. There's lights on the playfield so I know that we have power but otherwise it just doesn't react.

I know the correct answer is to hire somebody to come and check it out but in the off chance that there's an EASY and obvious solution, I figured I'd post. I've already located all of the fuses, checked them and reseated them in the case that it's just a connection problem but that made no difference.


3 years later
#4 11 months ago
Quoted from veejay:

Hello Thistle, my friends house of diamonds is doing the exact same thing.
Did you ever solve this?

Hey veejay, sorry for taking so long to reply!!

My solution three years ago was to push the cabinet back into the corner, but I've recently picked it back up and I've started to make a bit of progress.

This week, I replaced the backup battery with a watch cell in hopes that that alone would fix the problem (I'd read that no power to that RAM chip would cause it to just not boot), but that no luck.

I've found an amazing walkthrough at http://www.pinrepair.com/zac/index.htm and it looks like I'm not getting any voltage on some of the pins that lead to the cpu board... next step is to figure out how to remedy that.

How's your friend's machine doing?

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