OT: VAX 4000/300

From: CLASSICCMP_at_trailing-edge.com <(CLASSICCMP_at_trailing-edge.com)>
Date: Wed Apr 14 07:20:40 1999

>Hello. This 4000/300 has been dominating my computer room for a while,
>and I love how it looks, but it'd be great if it worked.
>
>The boot-diagnostic LED on the inside panel is stuck at 'F'. I don't have a
>field service manual, so I don't know the exact meaning. I've checked all
>of the boards inside to make sure they're snug inside, but no luck. Nothing
>shows up on a terminal hooked up to the MMJ jack. The drives seem to
>power up.

This means that the DC OK signal on the backplane isn't being asserted.
If the Q-bus consists of more than one box chained together, this
typically means that at least one of the boxes' power supplies either
isn't working or has a sick DC OK signal.

-- 
 Tim Shoppa                        Email: shoppa_at_trailing-edge.com
 Trailing Edge Technology          WWW:   http://www.trailing-edge.com/
 7328 Bradley Blvd		   Voice: 301-767-5917
 Bethesda, MD, USA 20817           Fax:   301-767-5927
Received on Wed Apr 14 1999 - 07:20:40 BST

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