875 Power Controller/H7104C 2.5VDC PSU/H7104D 5VDC PSU

From: Fred N. van Kempen <Fred.van.Kempen_at_microwalt.nl>
Date: Thu Nov 7 18:49:01 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_at_classiccmp.org]On
> Behalf Of John
> Willis
> Sent: Friday, November 08, 2002 1:43 AM
> To: cctalk_at_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_at_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
>
>
Received on Thu Nov 07 2002 - 18:49:01 GMT

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