Having a little issue with the upper display on my taxi. A couple weekends ago I noticed that half of the upper display was out and the other half displayed some garbled characters.
I turned off the game and re-seated all the connectors to the display board. I also tested HV on power board and both the - and + voltages were within specs.
When I turned the game back on, that display was completely out.

No obvious signs of out-gassing. Display was nice, bright and crisp one minute and then messed up the next.

Is there a way to test the dead upper display by jumpering some pins to it from the lower working display?
I am trying to determine if the display is actually bad or if the issue lies elsewhere.

Any ideas or help would be greatly appreciated!

The bonus display and the lower display are both still working perfectly. I will have to look at the schematic to figure out where I to test for voltages at the glass.

Never had a ribbon cable go bad in all my years in pinball. I guess it's possible though. I don't have any other system 11 games to borrow one from. I might have to buy one I guess. Cable is installed correctly.

I am getting 100 V DC at the glass.

Swapped out the ribbon cable with no change. If only it could be that easy

Looks like it's time to hunt down a replacement display.
Anyone have one on hand that they'd like to sell?

That would be awesome! Let me know if you find it.

Yes, very nice of Richthofen to make that offer. I have helped a few members out in the past with different things so maybe karma has decided to pay me back

Message sent
Fingers crossed

So a big thanks to Richthofen for hooking me up with a new display. It's people like him that help make this a great community!
With his old display and mine, I was able to make one good one.
Taxi is back! Now if I can just beat my last high score.....

Taxi (resized).jpg