I would test the Getaway DMD display in SST. You can hold the DMD on the outer edges of the board so you don't get shocked and so you don't have to go through a lot to swap the DMD just to see the results. The SST DMD display has a lot of dark pixels, which I think would take more voltage for them to turn on and even looks like screen burn in from the same text being displayed over and over. So I feel it may be on its way out. It would be even interesting to see how the DMD display does in Getaway.

The pixels are dark, so they are essentially burning out, at least in the middle part of the display.

FYI. A ColorDMD has been made for the Getaway, if you care about that at all. Though, they are currently out of stock. http://shop.colordmd.com/colordmd-replacement-display-for-the-getaway-high-speed-ii-pinball-machine/

Can you snap a picture of the DMD in the display test? All the pixels during this test should all be at the same brightness. I suspect they are not.

Also, I would like to see a picture of the DMD with no power to the DMD.

That is a shocker. Can you snap a picture of the back of the DMD? Interested in seeing the brand and the actual board layout.

Did you find a used DMD?

Would be interesting to know how the SST DMD works during Getaway's gameplay.

That is a very good plan for Getaway. The LED ColorDMD will be a nice fit into SST in the future. Sigma display works now and you can even choose the single color you want the display to be. No doubt this game will be colored at some point.