Troubleshooting Techniques
To troubleshoot an E1364A Switch Module problem, you should first
identify the problem and then isolate the cause to a replaceable part. See
Chapter 3, "Replaceable Parts," or Appendix B, "Backdating Information,"
for descriptions and locations of replaceable parts, depending on the serial
number of your switch module.
Identifying the
Problem
Table 4-1 lists some common problems, along with symptoms and possible
solutions. If the problem persists, perform component-level troubleshooting
using the component locator and schematics.
Table 4-1. Agilent E1364A Tests/Checks
Problem Type Symptom Possible Solutions
Operator Errors Non-zero error code in response to
the SYST:ERR? command.
See Appendix C of the
E1364A User’s Manual for Switch
errors and causes.
See Appendix B of the
E1300A/E1301A or E1302A User’s
Manual for additional
information on operator errors.
Catastrophic
Failures
Switch not responding to commands. Check logical address setting.
See "Testing the Assembly" in this
chapter.
Performance
Out of
Specification
Switch failing Closed-channel
Resistance Test (Test 2-1).
Check user wiring and test
connections.
Replace relays that correspond to
the channels that are failing. For
example, if channel 15 fails, replace
relay K115.
If most of the channels are near
or above the test limit (3.5 Ω),
replace the entire module (part
number E1364-66201).
Switch failing DC Isolation Test
(Test 2-2).
Check user wiring and test
connections.
Clean the printed circuit board.
44 Service Chapter 4
