26 May
2004
26 May
'04
9:24 a.m.
Hi John,
My 11/05 has a power switch on the front panel. The 11/10
is just a full height version of the 11/05 AFAIK. Is there
not a key switch on the front panel?
In any event, the 11/05 uses an H750 as well, so this schematic
should help you out:
http://bitsavers.org/pdf/dec/pdp11/1105S_Schem.pdf
I know that I found an 11/10 schematic in one of the usual places
too, but I cannot find it at the moment.
--tom
At 04:54 PM 5/26/2004 -0400, you wrote:
I have a PDP-11 here that I'd ike to power on but
there's
no power switch that I can locate.
The power supply is a H750 and the A/C entry panel is a BC05t
with two separate lower power three pin connectors on it.
I pinned them both out as:
+33V, external red wire
0V, external white wire
gnd,external green wire
They're the same shape&size connectors as the four
pin 5v/12v ones used everywhere today.
Figured that two of these wires could go to an "on" switch but thought
it would be better to ask than to just go around shorting things to see
what happened.
Thanks for any help,
John A.