TAF - (Post PF-Swap) - No DMD and Need Picture of Pop Light Wiring

I've finally flipped power back on to my TAF after a pf swap and most is looking/working good except I'm not getting an image on my Color DMD. I have power, see the screen's glow, but just no image. I tried swapping out to a regular DMD from my pile of parts (although I'm not sure if it works), and no image there either. Never had an issue with the display on this machine before, so wondering if I've just mis-wired or shorted something? My ribbon cables are correct and from what I see in the schematics, I have this board wired correctly. I also see the red LED on the board is lit. Any ideas on common reasons a DMD/ColorDMD won't display an image?

Another issue I'm having is I have no idea how to re-wire the lights to my pops. My pre-swap pictures just didn't focus on the light wiring, so no help there, and there aren't enough wires for me to wire each pop individually, so I'm assuming certain lights are chained. Can anyone post a pic of their TAF's light wiring or give me an idea on what I should be doing here.

The DMD is my biggest issue as I need to go into diagnostics for some controlled lighting and switch tests.

Thanks in advance!

#2 4 years ago

LTG

Pinside member

Hopkins, MN

12y 191K 56,983 24 7

OP
Quoted from LilRocky:
Can anyone post a pic of their TAF's light wiring or give me an idea on what I should be doing here.

Feature lamps on TAF. Once you get the display working. Go to Tests - Single Lamps, stop on the jet bumper you want, hit the start button then by hitting the "+" diagnostic button, each hit goes up a step through lamp, fuse, wiring, connector, etc. Or look at lamp matrix in the manual.

OP
Quoted from LilRocky:
The DMD is my biggest issue

Ribbon cable red stripe pin one each end ?

LTG : )

#3 4 years ago

BTF

PinballManiac40

Pinside+ Frequent

Pictures....needs pictures...good ones of the boards with power turned on and the wiring showing connected.

#4 4 years ago

LTG

Pinside member

Hopkins, MN

12y 191K 56,983 24 7

Quoted from PinballManiac40:
Pictures....needs pictures...good ones of the boards with power turned on and the wiring showing connected.

Until someone posts them.

IPDB has some - https://www.ipdb.org/showpic.pl?id=21&picno=10150 and the manual has pinouts for each board, connector info and wiring colors.

LTG : )

#5 4 years ago

BTF

PinballManiac40

Pinside+ Frequent

Quoted from LTG:
Until someone posts them.

I want to see his pictures. Looking for power/ribbon cables un/plugged in wrong or a voltage problem on the power driver board.

#6 4 years ago

LTG

Pinside member

Hopkins, MN

12y 191K 56,983 24 7

Quoted from PinballManiac40:
I want to see his pictures.

I apologize, I thought you meant pictures to help him.

LilRocky please post pictures of your back box and what you have going on.

LTG : )

#7 4 years ago

BTF

PinballManiac40

Pinside+ Frequent

Quoted from LTG:
I apologize, I thought you meant pictures to help him.

Oh no...it always about helping the OP. Too many possibilities if cannot see what is happening.

#8 4 years ago

BTF

PinballManiac40

Pinside+ Frequent

https://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Testing_DMD_Controller_Power

If you still have the DMD installed, you can measure all the (-112v, -100v, 5v, 12v, 62v) voltages at the DMD or at the DMD controller output and post those results, which must be close to those numbers. If they are, that DMD likely is dead.

Since the ColorDMD is also not displaying anything, that could be a ribbon cable issue or a 12Vunregulated voltage problem, that might be out on the power driver board.

#9 4 years ago

ROC

LilRocky

Pinside member

Here are pix of the display board, color dmd board, and main pcb. I originally Re-seated connectors based on keyed pin outs, and then corrected errors through the schematic, but very possible that something is switched.

119B41DE-46AA-493D-BE73-3C8FDF32C89A (resized).jpeg

1B4DC467-DC85-41C0-879C-A1540A09C93B (resized).jpeg

C954E6D4-2042-485D-9741-6390EC6C7E5C (resized).jpeg

FD836310-E9EE-448F-9A1C-0C194274AED1 (resized).jpeg

#10 4 years ago

ROC

LilRocky

Pinside member

Quoted from PinballManiac40:
If you still have the DMD installed, you can measure all the (-112v, -100v, 5v, 12v, 62v) voltages at the DMD or at the DMD controller output and post those results, which must be close to those numbers. If they are, that DMD likely is dead.
https://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Testing_DMD_Controller_Power
Since the ColorDMD is also not displaying anything, that could be a ribbon cable issue or a 12Vunregulated voltage problem, that might be out on the power driver board.

Aside from getting 120 on what you have as 112, everything else checks out.

#11 4 years ago

ZAZ

zaza

Pinside+ Frequent

10y 92,650 3,269

Quoted from PinballManiac40:
Since the ColorDMD is also not displaying anything, that could be a ribbon cable issue

I think you are correct about that looking at J603. The tracer is on pin 14

#12 4 years ago

BTF

PinballManiac40

Pinside+ Frequent

Try flipping this end of the ribbon cable so the red wire is on the left side. The boards are not marked very well in some cases. This is one of those times. 2019-11-10 18_52_17-Slack (resized).png

#13 4 years ago

ROC

LilRocky

Pinside member

Haha, yeah, I’m a dum dum in assuming that all the red ribbons should be oriented the same on each board. Reversed that ribbon and all is now good with the display. Thanks again to everyone for that quick fix.

#14 4 years ago

BTF

PinballManiac40

Pinside+ Frequent

Let us know how the lamp tests go.

#15 4 years ago

BTF

PinballManiac40

Pinside+ Frequent