WOM 200 pricing unit question

I bought a WOM 200 unit from eBay about a year ago. Needless to say I got it in very bad shape. It was as if stored face-up cover off in a barn for 30 years.

I had taken apart what is not riveted and cleaned out all the crap. I also rewired the lighting system as someone had ripped out the original and installed Christmas lights.
I spent at least a hundred hours restoring it.

The DPU 10 pricing unit was particularly bad with all linkages frozen. I had to completely disassemble to get it operational again. I followed the book for making adjustments.

Ever since its had a particular intermittent problem. Sometimes when there is 10 cents credit, the subtract 2 solenoid only subtracts 1. It's not the solenoid can't physically move the disk, but rather the subtract 2 solenoid gets too short of pulse. It causes the plunger to only move part way.

It's been about a year since I've done WOM maintenance and I am revisiting the issue.

I am first examining the WOM 200 model V-3WA-D schematic. The same model of my WOM. Particularly how the WOM and my DPU 10 interacts electrically. To completely understand how the cycles work. Timing etc.

I have found a puzzling thing.
The blue Seeburg tag says type DPU 10 however the wiring and disk contacts do not match my DPU 10 documentation.
It can only operate as a single pricing unit. Things have obviously been changed but this is what I find puzzling:

*The harness appears original.
*Plus 3 and minus 3 solenoids are present and wired.
*The contact PCB and its terminals appear original and not tampered with (No apparent odd jumpers etc.
*Vergin never-soldered terminals on the PCB show they are connected on the schematic (Connections 8, 10 and 11).
*Rotary switches that are on the schematic are not on my unit.

Did Seeburg ever produce a SPU that would fit a WOM 200?
I'm just trying to understand what I have, exactly.

Sounds as if you have several models mixed up--especially on the schematic--do you have a "legit" copy" ? "Timing" of that pulse is controlled by the "subtract contacts", on the cam switch.
Ron Rich

The schematic is for the WOM 200, a PDF I downloaded from the web somewhere. It looks like an original scan.

The WOM is for home use and I'll never use the 15 cent selection, but I was just curious about the parts mix-n-match.

I have never set the WOM for a 15 cent selection. Now I'm curious to know what it will (or will not do) if set for it. A good experiment to do tonight.

H Steve,
If you purchase the manual set, from one of the "legit" suppliers listed above, you will get all of the schematics--and you can determine which one is correct for that WOM- Ron Rich

Steve, the causes for this are:

1) Intermittent binding in the cancel linkage. This can be due to bits of rust on the pivot points or "burrs" in the thimble-core of the cancel solenoid.

2) Pitted cancel contacts. This is fairly common. The contacts involved are the bottom set on the stack under the motor which are cam operated. Note that there are 3 contacts in a break-before-make setup, that is, the center blade must break contact with the upper blade before making contact with the lower one -which is the cancel. If this sequence does not occur it puts a direct short across the A.C. line and blows the fuse. I have no idea why Seeburg did this, or several other oddities in those way over-engineered boxes.

Unfortunately, the original doc's (that I have) don't tell you any of this stuff.

Here are two scans of the documents that I use:
http://s1192.photobucket.com/user/Rob-N ... ort=2&o=46
http://s1192.photobucket.com/user/Rob-N ... ort=2&o=45

Rob-NYC

Thank you so much Rob.
It turns out I did have a copy of the original manual(s) in my main Seeburg book. I had studied the schematic and sequence of operation and found those switches. I hope to finish an outline I'm working on to detail the complicated 3Wa flow and post it for future use, and for others to use.

Rob I viewed your photo slide show twice and found it very interesting.
Thanks!

....I have a "slide show"-?

Rob