30 Apr
2004
30 Apr
'04
10:46 a.m.
Yes, that certainly makes sense. I didn't mean
that PC type plasma
panels would use the inherent memory feature. But it still wouldn't
surprise me to see the complicated high voltage AC main power supply
just as on the original design.
It wouldn't suprise me either...
Alas I know little about the display panel in the Integral. The rest of
the machine was mostly stnadard chips (68000, TTL, DRAMs, ROM, etc) and
HP parts that I had data on (1LB3 HPIL chip, Thinkjet printer chipset,
etc). The only thing I had to puzzle out was the display controller, and
that didn't take too long
However, the display seems to be all custom chips on the back (well,
there were a couple I could identify, and many more I couldn't). And
because of the high voltages, I didn't want to probe around too much with
the LogicDart (which has a maximum input voltage of 40V -- it's fine for
a board of logic, even if there are RS232 drivers on it, but not on a
plasma panel). So I indentifed the signals on the input connector and
left it at that.
-tony