IBM ps/2 P70 Plasma screen voltages

From: jpero_at_sympatico.ca <(jpero_at_sympatico.ca)>
Date: Wed Apr 28 16:33:47 2004

> Thank you for your swift answer,
> I know how to drive it, i have documents explaining this.
> What I don't have, is an original power supply. Two days of googling turned
> up a possible 24V or 205V and I don't want to connect that to the wrong
> pins...
> I can't trace any leads on the board (It's tripple layered) to figure it
> out, so now i have to rely on a voltage reading from someone else :(
>
> P.S.
> Did you by any chance notice a third connector with only 3 wires leading
> somewhere?

Thomas,

Rats!

After that, it is all gravy for yours!

I have to look at scraps of papers and find it. That was 3 years
ago. I still need to find P75 PSU, video board I suspected either
one is not working right making pixels noisy on tops of lit items.
(usually first 2 lines of every lit pixels.) Silly I was
disassembled the P75's PSU hence looking for another.

Oh, I think it is not 200V, less than that. I'll have to find a
working P70 (think my friend may still have it.)
And you also need to have DC-DC converter that goes between panel and
three DC power supplies. Your panel should have that small board
behind the panel's.

Both P70 and P75 panels interchange after
moving the pins around on the power plug at panel's side.

P70 is 386DX (either 16 or 20MHz), P75 is real 486DX 33 and uses
different PSUs between them.

I'm curious about your project using these plamsa panels?

Cheers,

Wizard
Received on Wed Apr 28 2004 - 16:33:47 BST