DEC HZ54 service manual

[a.carlini at ntlworld.com]

Adrian Graham wrote:

> The HZ54 contains 2x200mb memory boards and an RZ25 (~500mb) and
> faults shortly after the disk spins up, this I guess is normally the
> point it would populate the memory boards with the disk contents. At
> this point I'd suspect the disk but the HZ53 does exactly the same
> thing.    
> 
> If I just plug the RZ25 into a VAX it works fine.
> 
> Anyone have a service manual or know how these units work?

No idea about a service manual. Some of these units (like
the HSJs) have a battery somewhere that goes flat. Once
it's gone flat, reviving the unit is "interesting". All
this is from half-remembered usenet posts rather than
any semblance of direct experience, so take with a 
pinch of salt.

No idea about a service manual - don't recall seeing
one ever. Sorry.

Antonio

-- 

Antonio carlini
arcarlini at iee.org