Problems Getting To Console Mode; Pre-Console Mode Problems - DEC 4000 600 series Owner's Manual

Power Problems
Table 9–5 (Cont.) Interpreting Power Supply Lights
Light Meaning
DC-DC Converter (DC3)
DC3 OK When on, indicates that all of the output
voltages are within specified tolerances.
DC3 Failure When on, indicates that one of the output
voltages is outside specified tolerances.
DC-DC Converter (DC5)
DC5 OK When on, indicates the 5 V output voltage
is within specified tolerances.
DC5 Failure When on, indicates the 5 V output voltage
is outside specified tolerances.

Problems Getting to Console Mode

Pre-Console This section describes how to troubleshoot the system when you
power up the system, but the console terminal does not display
Mode Problems
on the power-up screen.
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9–8 Troubleshooting the System
Table 9–6 describes possible problems when getting to
console mode and their solutions.
Table 9–7 explains how to interpret the lights on the operator
control panel.
Action on Error
Call Digital Services.
Call Digital Services.