Digital Equipment DEC 3000 600 AXP, Service Information

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LED Codes
Table 5–7 (Cont.) SCC LED Codes
LED
Display Hex
Code
Solution
Then
Replace... Finally
Replace...
o oooo o 42 1 5 —
o oooo 43 2 5 —
o ooo oo 44 1 5 —
o ooo o 45 1 5 —
o
ooo o 46 1 5 —
o ooo 47 4 7 5
1
o oo ooo 48 3 6 5
o oo oo 49 Reserved — —
o oo o o 4A Reserved — —
o oo o 4B Reserved — —
o oo oo 4C Reserved — —
o oo o 4D Reserved — —
o oo o 4E Reserved — —
o oo 4F Informational Only — never stops here.
1
If replacing the I/O module fixes the system, then try reinstalling the original
keyboard.
Table 5–8 SCC LED Codes Action Table
Step Action
1 Reseat I/O module.
2 Reseat modem loopback (only in service mode).
3 Reseat mouse connection.
4 Reseat keyboard connection.
5 Replace I/O module.
6 Replace mouse.
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