Service manual

for use with the Agilent E1357A and Agilent E1358A Strain Gage FET
Multiplexers.
Repair Strategy Agilent Technologies recommends replacement of the entire assembly in the
event of a failure. Procedures in this chapter describe troubleshooting
techniques. A CLIP package, including component level replaceable parts
lists, is available for the FET Multiplexers (order Agilent part number
E1351-90033). The component assembly is available as an exchange
asembly as described in Chapter 3 — Replaceable Parts. Be sure to perform
the tests and checks in Table 4-2 before exchanging an assembly.
Troubleshooting
Techniques
To troubleshoot a FET Multiplexer 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
Agilent E1351A, E1352A, E1353A, E1357A, and E1358A replaceable parts.
Identifying the
Problem
Table 4-1 lists some common problems for the Agilent E1351A, E1352A,
E1353A, E1357A, and E1358A FET Multiplexers, along with symptoms
and possible solutions. If the problem cannot be identified using these steps,
replace the assembly.
Table 4-1. FET Multiplexer Typical Problems
Symptom Recommended Action
Non-zero error code in
response to SYST:ERR?
See Appendix A of the appropriate
FET Multiplexer User’s Manual.
Module not responding to
commands.
See "Making Visual Checks" in this
chapter
Module fails Closed
Channel Resistance Test
(Test 2-1) or Leakage
Test (Test 2-2)
See "Testing the Module" in this
chapter
4-6 Service