pdp11/45

From: Jacob Ritorto <jritorto_at_nut.net>
Date: Tue Aug 31 14:31:39 1999

On Tue, 31 Aug 1999, Tony Duell wrote:
[snip]
> With any PDP11 -- No, Any PDP -- No, any computer -- the first task is
> to get the power supplies working. If you've got a missing/low power
> rail, fix that first. There is no point in looking for logic faults
> until the supplies are right.

Sure, but the thing is, the PS seems to be fine when there's no logic
plugged in. It puts out -15VDC right on the money. When I connect all
the mate-n'-locs to the logic cage, the voltage dies down severely.
Doesn't that indicate a 'logic' problem? Or at least a short somewhere on
the logic boards?

        I'm going to try plugging in only one power jumper at a time,
testing after each one. Maybe that'll trim down the area the short's
coming from... Please stop me if this is going to blow something up. I
don't know what else to try at this point...

thanks.

jake
Received on Tue Aug 31 1999 - 14:31:39 BST