Digital Equipment DEC 3000 600 AXP, Service Information

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LED Codes
Console LED
Codes
This section lists error codes that may appear in the last test
sequence before entering the console program.
If the power-up sequence is successful, the diagnostic LEDs DD
hex code and the console (>>>) prompt appear. These are the
only indications that the system has entered console mode.
If the system does not enter the console program, use Table 10–8
to isolate the failed FRU and reseat the system module.
Table 10–8 Console LED Error Codes
LED Codes
EF EE ED
EC EB EA
E9 E8 E7
E6 E5 E4
E3 E2 E1
E0 DF DE
84 Fail Message
Overview
The message
84 Fail
is a general-purpose failure message that
can appear under two conditions:
• Using the TEST command
If an 84 Fail message occurs during a TEST command, a
diagnostic error code appears on the screen also. Disregard
the
84 Fail message and rely on the error code information.
• Using the BOOT command
If an
84 Fail
message occurs during a BOOT command, the
probable cause for the failure is one of the following:
– Boot device is not present.
– Boot device is present, but there is no media installed.
10–10