31 Jul
2011
31 Jul
'11
10:16 a.m.
I have a TI-59 calculator and a PC100a printer. The printer stopped working
suddenly and I would like to see if I can figure out why. Does anyone have
access to:
A) a schematic
B) a pin out for the TMC0251 controller
From waht I remember, there PC100 (I think mine is a -C
model) cotnains a
PSU, the custom controlelr chip, the print mechanism, and not a
lot else...
Not having a schemaitc, I think I'd start by checking the obvious -- the
power rails (see if you can find somebody with a similar unit who will
measure them so you have something to compare against), the swtiches, etc.
-tony