8 Dec
2017
8 Dec
'17
4:59 p.m.
On Dec 8, 2017, at 12:53 PM, Aaron Jackson via cctalk
<cctalk at classiccmp.org> wrote:
To isolate the problem further, try to see if any of the errors follow
the media as you move them between drives.
If the same errors occur on both drives, regardless of media then the
RX02 system board or perhaps the Qbus controller are at fault.
The field maintenance prints should allow you to trace the fault down
a bit further, with or w/o a logic analyzer.
How many different types of errors do you see?
Jerry
On Fri, Dec 8, 2017 at 3:03 PM, Aaron Jackson
<aaron at aaronsplace.co.uk> wrote:
Yes - you are right. I switched them back to how they were when I got
the drive. I think one of the switches was half down because XXDP
actually does something now.
Most of the tests now look something like this:
CZRXFB0 DVC FTL ERR 00034 ON UNIT 00 TST 031 SUB 000 PC: 003476
SECTOR ADR - LGC TST
SECTOR ADDRESS ERROR
EXPECTED SECTOR=18.
TARGET SECTOR=17.
I suppose these should match?
Starting to think I might need to confuse myself with my logic analyzer
and the RX02 control board.
Thanks,
Aaron.
Manual says it should be S1=off, S2=on for RX211 and RXV21
In the photo, I think S1 is on and S2 is off. Check them with an
ohmmeter if in doubt!
-tony