Agilent Technologies 75000 Series C - Manual (Page 124)

Troubleshooting
Techniques
To troubleshoot an Agilent E1445A problem, you should first identify the
problem, and then isolate the cause to a user-replaceable part.
Identifying
the Problem
AFG problems can be divided into three general categories:
• Operator errors
•
Catastrophic failures
• Performance out of specification
Operator Errors
Apparent failures may result from operator errors. See Appendix B in the
Agilent E1445A User’s Manual for information on operator errors.
Catastrophic Failure
If a catastrophic failure occurs, see "Testing the Assembly" to troubleshoot
the AFG.
Performance Out of Specification
If the AFG fails any of its Performance Tests, perform the adjustments
described in Chapter 3, then repeat the Performance Tests.
Testing the
Assembly
You can use the tests and checks in Table 5-1 to isolate the problem. See
Figure 4-1 in Chapter 4 for locations of user-replaceable parts.
Table 5-1. Agilent E1445A Tests/Checks
Test/Check Reference Designator Check:
Heat Damage - - - - - - - - - - Discolored PC boards
Damaged insulation
Evidence of arcing
AFG/Jumper
Settings A1BG0 - A1BG3
A1SP301
A1SP302 Bus Request level
setting
LADDR setting
Servant Area setting
AFG PCAs A1F301 - A1F305 Fuse continuity
Damaged connectors
122 Service Agilent E1445A Service Manual