875 Power Controller/H7104C 2.5VDC PSU/H7104D 5VDC PSU - test-drb@ccmp.vtda.org

7 Nov 2002

OK... so your backplane is hosed.  Do you have a dummy load to
"load" the PSU with?  It probably complains about it not having
a load to work with, hence the REG fail....methinks your PSU is
fine, just not the backplane or its power harness.  Remember that
cable harness insulation plastic rots... as well :)

--fred

...
  -----Original Message-----
 From: John Willis [mailto:cctalk-admin@classiccmp.org]On 
 Behalf Of John
 Willis
 Sent: Friday, November 08, 2002 1:43 AM
 To: cctalk(a)classiccmp.org
 Subject: RE: 875 Power Controller/H7104C 2.5VDC PSU/H7104D 5VDC PSU

 This is very interesting. Removing everything from the 
 backplane results
 in only the REG FAIL light coming on. No more +5V FAIL or +2.5 FAIL.

 Any ideas?
 -----Original Message-----
 From:	Fred N. van Kempen
 Sent:	Thu 11/7/2002 4:50 PM
 To:	cctalk(a)classiccmp.org
 Cc:	
 Subject:	RE: 875 Power Controller/H7104C 2.5VDC 
 PSU/H7104D 5VDC PSU

 Yes.  Or in the "final" part of the PSI itself.  Because it
 is shorting, the load of the PSU, it's killing the regulators.
 Or, such is my guess..

 --f