Hi

I've got a TAF that I'm trying to wire up a secondary power adapter to, by using unused pins on the female 9 pin connector (per instructions for the unit)

I have discovered when attempting to install this that the female 9 pin plug is wired incorrectly, at least according to the schematics (WPC schematic available here: http://arcarc.xmission.com/Pinball/PDF%20Pinball%20Misc/Williams%20WPC%20Schematic%20manual.pdf)...

CDE67FBD-1714-4578-A7A0-488DAAE49D53 (resized).jpeg

(I'm in the UK and the pin was sourced from Europe, so 230 VAC is the correct configuration)

I have established that the male end of the cable, the one connected to the transformer, is wired correctly according to the above schematic.

The female end - connected to the line filter box, however, looks like this:

81740104-8C0B-41B7-800C-268524BF17CD (resized).jpeg

215991F6-4708-4CFF-85E1-C45F20C9904F (resized).jpeg

The two wrong wires I can see are:
- white (plugged into 4 - white/brown on male, should be in 7 - white/orange)
- one end of orange loop (plugged into 6 - brown, should be in 9 - orange)

Now, I know the following:

1. The game works 100% with no issues I can see
2. I have the correct transformer - 5610-12835-00
3. The male plug is wired correctly per the schematic
4. The female plug is wired incorrectly, the white and one of the orange loop wires are in the wrong places)

Does anyone know the voltage configuration of the wires that come off the transformer and can explain why it would work despite being wrong?

Is it safe for me to repin the white and one orange pins to their correct position? (one to the left in both cases) ?

Does my line filter box look right?

888E7D36-60E0-4150-B734-6B35460CF65E (resized).jpeg

Thanks in advance for any help.

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Did more digging in the schematic and noticed this under "Optional Power Connections"...

Screenshot 2019-03-01 16.12.00 (resized).png

This looks to be how mine is wired. This would mean, presumably, that my machine is jumpered for 206 VAC instead of 230 VAC? In the UK we have 230 VAC so I don't entirely know why this is working....

Thanks, that's very comprehensive and quite brilliant . A lot of it went over my head, I'll be honest.

In the UK officially it is 230 VAC - 6% + 10% which translates to 216.2 V – 253.0 V, at 50hz. In my experience it would be more common to see it over 230 than under, indeed looking at the logs for my UPS at work it is pretty consistent at ~245V. My pins at home aren't plugged into a UPS though so the power input is not smoothed (that could be a prudent next step).

Seems I would benefit from repinning the female plug to 230 VAC then... ?

Repinned the female plug to 230 VAC, and she still lives!...

6E4FA3DF-F6C2-4719-9BEA-9EE31B4E18F0 (resized).jpeg

Some interesting observations..

- The transformer hum I had (wasn't loud, but you could hear it in attract mode) before is gone. It's dead silent now.
- Thing hand and bookcase move slower now, the hand in particular feels about 20% slower than it was before. No effect on gameplay really, it all works the same
- The Thing eject coil used to kick the ball slightly airborne which meant it wouldn't smoothly transition to the UR flipper. Now it's perfect.
- Chair and swamp eject are softer, doesn't affect gameplay too much although it's a touch too soft for my liking
- Flippers feel mostly the same, if there's a difference I can't feel it. Hasn't changed shot making.

Feels like a different game to be honest, not in a bad way. That transformer hum was on my To Do list so happy that's resolved itself.