Here is a really good manual that is the result of updating the most
recent R390A tech manual. It has color pictures, redrawn schematics,
and lots of fixes to common problems... and, is free.

http://www.hausernet.com/r390a/

JPS wrote:
Hi All, I found the R-390 Tech Manual TM11-856A.pdf (42.5 MegaBytes) in
the alt.binaries.e-book.technical NG It was Posted on 11/13/03 Regards, JPS