RML380Z and exploding sun psus [long and boring] - test-drb@ccmp.vtda.org

7 Dec 2000

--- Tony Duell &lt;ard(a)p850ug1.demon.co.uk&gt; wrote: > 

...
  The size of the PSU is not what matters here. Most
likely you ended up 
 with an almost dead short across the mains. In which case the fault 
 current will get to at least several hundred amps... 
Possibly.  It _is_ a beefy psu tho, so it could just have been a cap going.  Trouble is,
the final
screw holding the lid on was made of purest cheesium alloy, and just rounded off. 
I'll drill the
head off at the weekend, and show it to a mate of mine - he spent years
repairing/designing/testing switchers for UPS use, so is more of an expert than I.  

...

 I assume you're going to repair it, in which case I'd advise using a 
 'series lightbulb' (see, for example, the sci.electronics.repair FAQL) to 
 limit the current when you power up again. 
Of course :)

...
   OH - the
RML380Z now works fine with it's replacement low-density 
 controller :)  Both drives light
 up, make noise and try to do things, so I'm a happy bunny :)  I'd 
 still like to get the high
 density controller going sometime - but a least now i'm one step 
 closer to booting cp/m.   
 Excellent. Let me know if you need more information on the hardware side 
 of this machine -- I have the manual to hand..

Certainly will :)

Dave.

__________________________________________________
Do You Yahoo!?
Yahoo! Shopping - Thousands of Stores. Millions of Products.
http://shopping.yahoo.com/