29 Mar
2006
29 Mar
'06
6:57 a.m.
Again, from (my) memory :-)
If core is installed, the standby position is of no use.
To use the backup battery the 4th "power brick" is an H775 (IIRC)
which is needed for the battery charging/regulation.
If you have core in the machine, the 4th power brick in the power
supply (H765?), is the H754 for core (+20V and -5V).
- Henk.
-----Original Message-----
From: cctalk-bounces at classiccmp.org
[mailto:cctalk-bounces at classiccmp.org] On Behalf Of Julian Wolfe
Sent: woensdag 29 maart 2006 16:27
To: 'General Discussion: On-Topic and Off-Topic Posts'
Subject: RE: KY11-LB behavior question
Okay, it's just that I was testing the switch position just
to see what it did, and everything went off including the
front panel. I guess it's supposed to do that.
I don't know why DEC didn't put a standby LED on the front -
you'd think because it's already powering the MOS, you
wouldn't care about powering some silly LED.
What does that position do if core is installed?
This message and attachment(s) are intended solely for the use of the addressee and may
contain information that is privileged, confidential or otherwise exempt from disclosure
under applicable law.
If you are not the intended recipient or agent thereof responsible for delivering this
message to the intended recipient, you are hereby notified that any dissemination,
distribution, or copying of this communication is strictly prohibited.
If you have received this communication in error, please notify the sender immediately by
telephone and with a "reply" message.
Thank you for your cooperation.
-----Original Message-----
From: cctalk-bounces at classiccmp.org
[mailto:cctalk-bounces at classiccmp.org] On Behalf Of Gooijen, Henk
Sent: Wednesday, March 29, 2006 12:49 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: RE: KY11-LB behavior question
It's been a long time I had the switch at the Standby position.
*IIRC*, everything goes OFF, and only MOS memory is
powered, but there
are a few wires on the backplane, where the power
leads are
soldered,
that connect the backup supply pins to the main
supply pins. To use
the memory battery backup, you must remove these wires, but
without a
battery and the charger plus a cable to the BA11
power
supply, it is
useless.
- Henk.
> -----Original Message-----
> From: cctalk-bounces at classiccmp.org
> [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Wolfe, Julian
> Sent: dinsdag 28 maart 2006 22:52
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: KY11-LB behavior question
>
> I just have a question about Standby mode on an 11/34. I
read it's
> supposed to leave power applied to MOS, but
do the fans
and whatnot
> turn off along with the CPU? Or are they
supposed to
stay on? My
> > junk's in a BA11-K box.
> >
> >