Digital Equipment DEC 3000 600 AXP, Service Information

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LED Codes
LED Code Description
3A Check Battery test
3B Tests NVR registers
3C Assure Clock is Ticking test
3D Test TOY registers
3E Interrupt test
3F All tests passed
SCC LED
Codes
The following LED codes represent SCC diagnostic tests. If an
error occurs during one of these tests, the screen displays a FRU
code and error code.
LED Code Description
40 SCC Self-test starting
41 SCC Self-test is connecting to driver
42 SCC Reset/Init test
43 SCC Modem test
44 SCC Polled test
45 SCC Interrupt test
46 SCC DMA test
47 SCC LK401 test
48 SCC Mouse test
49-4E Reserved
4F SCC Test complete
NI LED Codes The following LED codes represent NI diagnostic tests. If an
error occurs during one of these tests, the screen displays a FRU
code and error code.
LED Code Description
50 Network address ROM test
51 Test LANCE Registers
52 LANCE initialization test
53 LANCE internal loopback and DMA test
54 Interrupt test
55 LANCE CRC Generation and detection test
56 Test LANCE MISS and BUFF Errors test
57 Test LANCE Collision detection test
58 LANCE Address filtering test
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