Help resurrect my Xerox Alto

[Eric Smith]

Tony Duell wrote:
 > I don't know the Alto at all, but this sounds a bit like a Diablo model
 > 30 drive. In it?

Most Altos have the Diablo 31 (a variant of the 30 family).  Some have 
the Diablo 44.

 > FWIW, I have the DIablo Model 30 service mnaual, but it woudl take a
 > little time to find it.

Bitsavers has some 30-series and 40-series maintenance documentation online:

http://bitsavers.org/pdf/diablo/