Digital Equipment DEC 3000 600 AXP, Service Information

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LED Codes
If the system does not enter console mode (>>>), or if the hex
code DD is not displayed on the LEDs, then use Table 10–4 to
isolate the failed FRU. Take the following action in the order
listed.
1. Reseat the I/O module.
2. Reseat the modem loopback.
3. Reseat the mouse connection.
4. Reseat the keyboard connection.
Note
When testing a DEC 3000 Model 800S AXP system,
the console command SERVER must be set to ON (SET
SERVER ON) for this diagnostic.
This portion of the testing is not displayed on the monitor.
Table 10–4 SCC LED Error Codes
LED Codes
40 41 42
43 44 45
46
LED code 47 is for the keyboard and I/O module. LED code 48 is
for the mouse. LED codes 49 through 4E are reserved.
NI LED Codes The following LED codes represent continued power-up testing.
If an error occurs during this testing sequence, the system
hexadecimal code plus FRU and error code information appear
on the screen.
If the system enters console mode, then run the NI diagnostics
and interpret the error information using:
• SHOW ERROR command
• Diagnostic information (Chapter 9)
• Diagnostic error messages (Chapter 14)
10–7