24 Oct
2015
24 Oct
'15
10:15 a.m.
On 10/23/15 2:43 PM, Al Kossow wrote:
On 10/23/15 12:39 PM, Josh Dersch wrote:
That's pretty much what I figured. I took a closer look at one of the
other dead XT2190s I have that I'd opened up to inspect awhile back and
there are a few ICs surface-mounted to the flat ribbon cable running to
the head assembly. I suppose it's likely that one of these has failed,
though actually repairing it would be a trick involving some very
careful disassembly in a very clean environment. (And a nonexistent
service manual.)
- Josh
I don't
suppose anyone has a service manual for these things so I know what
stuff
to probe? (Nothing on Bitsavers and a casual Google search turns up
nothing of interest.)
Service manuals/schematics/ASIC info is EXTREMELY difficult to get for
anything beyond
the stepper motor era. What is on bitsavers are the results of my
searching for
20+ years, and that isn't much. I've been digging into early 90's
DC2000 QIC drives over the
past couple weeks, and hw docs for them are just as difficult to find.