You may want to see if the PLATO terminal documentation is any help, look on Bitsavers
under University of Illinois. Those plasma display power supplies are hairy devices; the
panel is actually a memory device and the power supply produces a high voltage AC waveform
to make that work. Those panels normally light up around the rim; the fact you see that
briefly but not sustained gives some hope that adjusting may be all that is needed.
That's quite a display; the usual plasma panels were 8 inches square, 512 by 512
pixels. I'm guessing this is a 1k by 1k pixel display, which I have seen once or
twice, at SAI in San Diego in some military displays.
I know a plasma terminal expert; I've forwarded your message to him.
On Aug 13, 2020, at 3:23 PM, Tom Uban via cctalk
<cctalk at classiccmp.org> wrote:
I have a DEC VRE01 terminal that I bought NIB years ago. For those who don't know
about this model,
it has a flat plasma (orange/black) display of about 17". It worked when I bought
it, but now, years
later, I tried powering it up and the light comes on for a moment and goes out. I suspect
supply issue, but bitsavers does not seem to have this one.
Does anyone have schematic (or other) documentation for it?