RK07 questions - now RK611 questions

[Gooijen, Henk]

You are correct, Tony, board swapping tricked me (this time)!
I think I can forget the RK07 drive for now, and concentrate on the RK611
controller.  First, I checked the flat cable from the controller M7904 (drive
interface) module to the home-made bulkhead. That flat cable is 100% OK.
The round cable from the bulkhead to the drive is NOS, and the label is
70-12292-25, so I'm sure it is the RK06/RK07 drive cable, not the RL0x cable.
 
Before pulling out all kind of equipment, I started with what a DEC engineer
probably also would do: run the diagnostics!   So, I loaded XXDP and ran
ZR6A??.??? which is the test "RK611 diskless controller diagnostic #1".
Here is the output.
 
.R ZR6A??.???
ZR6AD0.BIN
RK611 DISKLESS DIAGNOSTIC: PART 1 CZR6AD0
@
ATTEMPTING TO CLEAR CS1 WITH A SUB CLEAR
BUS ADD  INCORRECT
TEST     ERROR
NUM      PC
000041   033024
  PREV     EXPECT   ACTUAL
  VALUE    VALVE    VALVE
  013776   000200   100200
 
So, there is already a problem with the RK611 controller reported after the
diagnostic runs some 5 seconds!  A few months ago I scanned a pile of XXDP
doc, but the ZR6A et al. was not amongst them :-(
I am not sure I have a spare RK611 controller board set (going to the attick
after this e-mail), but can somebody tell me which board is likely to be suspected?
 
  thanks,
- Henk.

________________________________

Van: cctalk-bounces at classiccmp.org namens Tony Duell
Verzonden: zo 22-01-2006 19:51
Aan: cctalk at classiccmp.org
Onderwerp: Re: RK07 questions



> It also shows that I am not completely out of the weeds ...

Do you know that the controller and cabling are OK? Or could the fault
not be in the drive?

-tony





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