DEC MicroVAX 3100 85 Troubleshooting Instructions page 10

Table 1-1 (Cont.) Basic Troubleshooting
Symptom
System Problems
The power-up display
contains question marks.
The power-up test
display contains
unexpected characters.
The system fails to boot
the operating system.
Possible Cause
The port to which the
terminal connects may
be
faulty.
The terminal cable may
be
faulty.
A diagnostic error has
occurred.
The terminal settings
are incorrect or the DZ
circuitry is faulty.
The system defaults are
incorrectly set.
1-4 Troubleshooting and Diagnosing Problems
Suggested Solution
Try connecting the terminal to
another system. If this solution
works, the port to which the
terminal was connected is faulty.
If the terminal still does not
operate, it is faulty. In either
case, contact your Digital services
representative.
Connect the terminal cable and
the terminal to another system.
If the connected terminal works,
the DZ circuitry or MMJ connector
is faulty. Otherwise, the cable
is faulty. Contact your Digital
services representative.
See Section 1.4.
Make sure the terminal settings
are correct, then run the power-
up test again. If the terminal is
set correctly, contact your Digital
services representative.
Set the system defaults as
described in the Open VMS
Factory Installed Software User
Information document, then try
to boot the system again. If
the system still fails to boot,
contact your Digital services
representative.
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