Is anyone aware of the existance of a maintanance / service manual for
the old TI "portable" data terminal, model 725?
Note that is is one of the very early (and very large) thermal printing
terminals from TI,
http://terminals.classiccmp.org/wiki/index.php/File:Silent700_725ad.jpg
I have several here that I am trying to keep running but have never
had technical information that would include schematics or other
parts information.
There's a service manaul for at least one Silent 700 on bitsavers. It
contains scheamtics, but they are none-too-clear. But it might be a start
for your unit, even if it doesn't driectly apply.
-tony