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Repair Strategy
Hewlett-Packard recommends replacement of the entire assembly in the
event of a failure. Procedures in this chapter describe troubleshooting
techniques.
Troubleshooting
Techniques
To troubleshoot an HP E1330A/B module problem you must first identify
the problem and then isolate the cause of the problem to a replaceable
assembly. See Chapter 3 — Replaceable Parts for descriptions and
locations of HP E1330A/B replaceable parts.
Identifying the
Problem
Table 4-1 lists some common problems for the HP E1330A/B modules,
along with symptoms and possible solutions. If the problem cannot be
identified using these steps, replace the assembly.
Table 4-1. HP E1330A/B Typical Problems
Symptom
Possible Solutions
Non-zero error code in
response to SYST:ERR?
See Appendix A of the
HP E1330A/B
Quad 8-Bit Digital I/O Module User’s
Manual
.
Module not responding to
commands.
See “Making Visual Checks” in this
chapter.
Module fails Digital Test
(Test 2-1).
See “Testing the Module” in this
chapter.
Making Visual
Checks
Visual checks for the HP E1330A/B modules include the following. See
Table 4-2 for typical checks.
•
Check switches/jumpers
•
Check for heat damage
•
Check connector contacts
NOTE
See the HP E1330A/B Quad 8-Bit Digital I/O Module User’s Manual for
information on logical address and IRQ settings. If there are no apparent
problems following the visual checks, run the Performance Verification
Tests in Chapter 2 to see if the module is defective.
34 Service
Chapter
4