Bally 873 wiring diagrams

[traxinger31]

Hello,
I bought a Bally 873 and a User Manuall for it a few days ago.
Unfortunately the Manuall is only a mechanical manuall and no electrial one (with wiring diagrams).
Could anybody help by finding such wiring diagrams for the Bally 873?
Thanks and have a nice day,
Christoph

[wolftalk]

what is the complete model number on the plate below the handle?


bally made at least 130 versions of the 873, and they all had their own schematic.  'course, the differences between many of them are minimal ... at least between the models of the same game style (lightning, 5 line pay, fruit, jillions of jackpots, etc.)


if you have one of the basic models that bally sold without customizing for a specific casino - like the 873A or  873C, odds of finding the exact schem go way up.


paperwork for three variants of the 873 is on http://bingo.cdyn.com/slots/  ... help yourself.  I may have others if you post your model number.


there's also many manuals on the web site.

[traxinger31]

Sorry for forgeting the exact model number
Here is a photo of the Plate (I think its a 873-A)
Thanks for your help
Christoph

[wolftalk]

unfortunately, don't have the schematic for 873-A. 


however, I do have the schematic for the 873-D, which is a version of the 873-A for the Sparks Nugget casino in Reno Nevada.  It uses the same reel strips, reel wiper wiring, payout counter and reel index discs, so all those diagrams will be the same.


I put the docs for the 873-D on http://bingo.cdyn.com/slots/ ... I need to do a little more work on the schematic to finish fixing faded lines/text, but I put what I've done so far on the site.


I also put the original scan of the schematic.  You can see where they used white-out to make changes.  Assuming they started with the 873-A schematic, looks like they removed the "service button light/switch" and changed how the meters hook up (they added wire 61-1 ... font changes are usually a hint a change was made).

[essmeier]

You should purchase this book by Robert N. Geddes: Owner's Pictorial Guide for the Care and Understanding of the Bally Electromechanical Slot Machine.
There are used copies on Amazon from $79.  While that sounds like a lot, the book had a $49.99 cover price and is out of print.
It's worth the money, and more.

I've never seen a better book devoted to the disassembly or repair o something.  It covers seven of the more popular 1970s Bally EM slots, and it covers the 873 in detail and includes a schematic along with tons of step-by-step instructions and accompanying photos.

I cannot praise or recommend that book enough.

[wolftalk]

see  if the "gambler's general store" in vegas has them at cover price ...