PDP-11/34 questions

From: Chuck McManis <cmcmanis_at_mcmanis.com>
Date: Fri Dec 15 21:31:41 2000

I got another PDP-11/34 today, this one is a bit more modern but with less
stuff in it. It has an RL11 interface connected to an RL02 drive.

It has the newer switching PSU (vs the original boat anchor PSU) and I
powered it up with some SLU's installed for load. It came up fine and all
the voltages are spot on.

I put all the cards back in and confirmed I could start and stop the CPU
from the control panel. However I don't know enough about operating the
11/34's operator panel to be able to input a program. CNTRL/BOOT starts the

I opened up the RL02 drive and it has a pack marked "RSX-11M 3.2SYS" in it.
I vacuumed out all the dust I could, checked around and it seems fine. So I
buttoned it back up and tried to load the pack. It powers on (the fan
blows) but popping the LOAD switch has no effect. No lights (not even
fault) light up and the drive doesn't seem to spin at all. (yes it is

So my first question is, what to check on the RL02 to see why it may not be
spinning up?

The console SLU has a male DB25 on it. Since I didn't have a compatible
terminal where it was I don't know yet what the output, if any is, to the
serial line.

Suggestions? Steps for entering a simple program into the programmers console?

Received on Fri Dec 15 2000 - 21:31:41 GMT

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:32:49 BST