3 Feb
2010
3 Feb
'10
5:24 a.m.
On Feb 2, 2010, at 8:52 PM, St?phane Tsacas wrote:
Hi,
A PDP11/34 has just arrived... I need some basic help before I'll power it on.
The description of the current setup can be seen there :
http://www.conservatique.com/pdp/pdp-1134 .
1- There is 2 wires cable coming out the front panel, pins TB1/TB2,
which goes to the rear of the box, towards the power supply. From the
schematics Fig 9-5 (p64):
http://docs.google.com/viewer?url=http://www.mirrorservice.org/sites/www.bi…
this cable should go to a M9301 ? What if I don't have a M9301?
Is there a M9301 Boostrap/Terminator Maintenance Manual available
somewhere by any chance?
I think bitsavers has documentation on it. An M9312 is a better bootstrap terminator
board and can be used in place of an M9301. Those wires go to the "boot" pins
on the bootstrap boards.
2- How can I test the power supply? I don't see any voltage control
points, I couldn't find how I can access to the boards under the
transformer.
While there are no specific test points, you can pull *all* of the boards and measure the
supplies at the distribution points. If you take the bottom off of the BA11 box
you'll see it. That will also give you access to the individual power supply
"bricks". They have individual adjustment points on the "bricks".
The different "bricks" have different numbering to indicate what voltage(s) they
supply.
If anyone has the following boards for sale/trade, please drop me a mail:
- a M9301 !
I probably have some and maybe some extra M9312.
- any memory which can fit (MOS or CORE). I have some
11/70 core
modules for trade I think ;-)
Any MUD memory should work (I have some).
TTFN - Guy