Repair Strategy; Troubleshooting Techniques; Identifying The Problem; Making Visual Checks - HP E1330A Service Manual

Repair Strategy

Troubleshooting
Techniques
Identifying the
Problem
Making Visual
Checks
NOTE
34 Service
Hewlett-Packard recommends replacement of the entire assembly in the
event of a failure. Procedures in this chapter describe 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.
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
Non-zero error code in
response to SYST:ERR?
Module not responding to
commands.
Module fails Digital Test
(Test 2-1).
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
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.
Possible Solutions
See Appendix A of the HP E1330A/B
Quad 8-Bit Digital I/O Module User's
Manual.
See "Making Visual Checks" in this
chapter.
See "Testing the Module" in this
chapter.
Chapter 4