21 Jan
2012
21 Jan
'12
2:48 p.m.
On 01/11/2012 11:47 AM, Tony Duell wrote:
I've traced out scheamtics of the machine and the little thermal printer
(the only peripehral I have). Of coruse this doens't tell you what's
inside the ASICs (one in the computer, one in the printer), but it might
help with things like the keyboard matrix.
I cna't rememebr if I gave a copy to the guy who scnns stuff for me, if I
didn't I can easiy do so.
-tony
I have the hardware techncial manual on paper (it
was given to me
along with another HX20 and a TF20 drive unit). There are similarl
manauls avaialble for download on the web..'
Speaking of technical
documentation for compact battery-powered
computers, I sure wish some technical documentation on the
Panasonic/Quasar/Friends Amis HHC would show up. The hardware is
6502-based, but with an ASIC that controls the memory map and LCD. I've
partially reverse-engineered some of the mainframe and plugin ROMs, but
parts remain mysterious.