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MAINTENANCE
3.6
TROUBLESHOOTING FLOW
The following notes apply
to
the
Troubleshooting
Flow
(Table
3-11):
o
The answer to any procedure decision is either the
next
line, or a branch to another step
o
The•> ("arrow") is read as:
"go to step."
For example:
- - ... -+· - - ...... - - - - .. - - • - • - - - •• - • - - .. - ........ - •• - ... - - .. - -
·+· .... - ...
STEP JPROCEOURE/O!CISION
!BRANCH
... - ·+· .. - ... - ...... - .... - ........ - ... - ........
·+· ..... .
START ·Turn system power
ON.
Does the system bootstrap?
N •>
l
Is the system operating reliably?
N •> 20
DONE
If the answer to:
"Does the system
bootstrap?"
is
no
(N),
branch
to
step
1 (N
•>
l); if yes (Y), take the
next line:
"Is the system operating reliably?" If
that
answer
is
no, branch to step 20 (N
•>
20); if yes, you
are done.
o
Microverify error numbers displayed
in
the
CPU
patch
panel segmented-LED display, are valid only when the CPU
is in console Halt
mode
(the
>>>
console
prompt
is
displayed on the monitor screen).
3-28
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