Service manual

122 Diagnostic LEDs Definitions
Table D–1 (Cont.) Diagnostic LEDs Definitions
State Substate Definitions Recommendations
1011 0000 The DZ test completes. An
optional video has been
found but its testing has not
been started. This is part of
the console determination
code.
See Section D.1
1011 0001 The DZ test completes. No
optional video is installed
or, if it is installed, fails
self-test. In either case, the
base monochrome video test
has been entered.
See Section D.1
1010 0000 The video subsystem was
tested and the console
initialization sequence was
entered.
See Section D.1
1001 xxxx
1
The system initializes and
power-up testing starts.
The substate variable
indicates the test being
executed.
If the substate contains
any lit LEDs, determine
the failing device. If you
have operational video,
troubleshoot that device.
If the video screen is
blank, you have a dead
system. See Section D.1.
1000 xxxx
1
The self-test completes with
the substate indicating the
failing subsystem.
Enter TEST 50 to see the
results
0111 xxxx
1
Self-test was entered from
the console TEST command.
The substate indicates
the test currently being
executed.
Enter TEST 50 to see the
results.
0110 xxxx
1
The self-test completes from
the TEST command with
the substate indicating the
failing subsystem.
Enter TEST 50 to see the
results.
1
1111 = MONO, 1110 = CLK, 1101 = NVR, 1100 = DZ,1011 = MEM
1001 = FP, 1000 = IT, 0111 = SCSI-A or SCSI-B
0110 = SCSI-A or SCSI-B, 0101 = SYS, 0100 = 8PLN, 0011 = (option)
0010 = (option), 0001 = NI