Agilent Technologies 8590 Series Service Manual page 635

The I/O Data-Bus Failure Code.
The next four digits identify failed data lines on the I/O data bus.
Convert the four digits to binary and interpret them with
Table 14-5 I/O Data Bus Failure Code Interpretation
Digits From
Example
Chapter 14
Equivalent
Binary Value
8
4
2 →
2
1
8
5 →
4
2
→
1
C →
8
4
2
1
8
4
2
1 →
1
Interpreting Analyzer Messages
A16 Circuit Tested
Error at IOB 15
Error at IOB 14
Error at IOB 13
Error at IOB 12
Error at IOB 11
Error at IOB 10
Error at IOB 9
Error at IOB 8
Error at IOB 7
Error at IOB 6
Error at IOB 5
Error at IOB 4
Error at IOB 3
Error at IOB 2
Error at IOB 1
Error at IOB 0
Analyzer Messages
Table 14-5.
A16 Reference
Designator
U3
U3
U3
U3
U3
U3
U3
U3
U2
U2
U2
U2
U2
U2
U2
U2
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