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MAINTENANCE
3.3.l.l
Running The VCBOl Diagnostic - To run the diagnostic:
l.
Press the HALT pushbutton twice, to enter console mode.
CAUTION - Console Mode
Before entering console
mode,
all
open
files
should
be
closed,
and
all
open
accounts
logged-off the system.
The console interface is
described
in
Appendix
A
of
the VAXstation I
Owner's Manual, EK·VS200-0M.
2.
Load the MICROVAX DIAGNOSTICS 2 of 3 diskette
in
drive·
1 .
3.
Enter:
>>> B/10 DUAl<RETURN>
The VDS header should be displayed, with the DS> prompt.
4.
Load the MICROVAX DIAGNOSTICS 3 of 3 diskette
in
drive
2 •
5.
Enter:
DS> ATTACH RXSO DUA DUA2<RETURN>
OS> SET LOAD DUA2:[SYS0.SYSMAINT]<RETURN>
OS> LOAD EHXVS<RETURN>
DS> ATTACH VCBOl HUB VCBO 777200 100<RETURN>
DS> SELECT VCBO<RETURN>
6.
If the screen display appears to be missing pixels,
the
run time for the Refresh Test (Test 11) can be increased
by
se~ting
event flag 2:
OS> SET EV 2<RETURN>
and responding to the number of seconds
prompt
with
a
value
between 0 and 327679.
Running the test for a few
minutes (that
is,
between
150
and
300
seconds)
is
usually enough.
If the screen display appears to be
normal,
omit
this
step.
3-20
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