Hi,
I just rediscovered my Microvision still in the original box (original owner from the 70s). I was heartbroken that the screen didn't work. I then found this thread and was thrilled to learn about this project! Per advice earlier in this topic, I powered up Block Buster, pressed "Go" a bunch of times, and the unit beeped/responded, so I am pretty certain the only issue is the LCD.
Put me down for 1!
Thanks so much for undertaking this work!