Operator Control Panel Lights; Diagnostic Flow For Problems Getting To Console - DEC 4000 600 series Owner's Manual

Table 9–6 Diagnostic Flow for Problems Getting to Console
Symptom Action
Power-up screens Check terminal power source and
are not displayed on power cord.
console terminal.
Check terminal brightness and
contrast controls. Verify that the
terminal power switch is on.
Check system operator control panel
lights for a failure during self-tests.
If two operator control panel lights
remain on, either option could be at
fault.
Make sure that baud rate settings
for terminal and system match. The
system default baud rate setting is
9600.
Try connecting the console terminal
to the auxiliary serial port.
Operator The operator control panel lights (Figure 9–2) are used to
indicate the progress and result of self-tests for Futurebus+,
Control Panel
memory, CPU, and I/O modules. Refer to Table 9–7 for
Lights
information on interpreting the lights and determining what
actions to take when a failure is indicated.
Problems Getting to Console Mode
Reference
Figure 9–2 and Table 9–7
Changing the Baud Rate in
Chapter 8
Troubleshooting the System 9–9