Date   : Tue, 31 Aug 2004 05:37:07 EDT
From   : Robertpatton41@...
Subject: Master 128 PSU info.


Apologies if you've received this once before. There is doubt whether I  was 
actually subscribed when I sent it. (Does AOL work OK on this  system?)    

Replacement PSUs for the Master128 are becoming scarce, so I must try  to 
repair the six "duds" in my possession.
 
Can anyone provide me with a circuit diagram of this PSU  please?  Also any 
Servicing Notes, Test Data or even Component Lists would  be helpful. (The  
servicing manuals published on the web do not  include the PSU.)
 
In most cases these units provide no output as the 1.6A fuse has  blown. 
Replacing it causes it to blow (spectacularly!) again.  Any  suggestions as to 
likely causes, please?
 
Thank you for any helpful information.
 
Robert