Filter
Top Products
How to troubleshoot the analyzer
•
Review ‘’Safety Considerations’’ and ‘’Troubleshooting Hints.’’
Warning Service must be performed by trained service personnel who are aware of the
hazards involved (such as fire and electrical shock).
•
See chapter 6, ‘’Replacing Assemblies,’’ to determine how to disassemble and
assemble the analyzer.
•
Determine initial test by comparing the analyzer’s symptoms to the symptoms
in the following table.
Symptom Troubleshooting Test
Screen blank †
Screen defective
After power up, >3 minutes before keys active
No response when key is pressed
Incorrect response when key is pressed
Initial verification, page
4-5
Keys are active and screen grid is displayed but screen is defective Display, page 4-22
Error messages
Calibration fails
Performance test fails
Intermittent failure
GPIB fails
Mic pwr fails
Serial port fails
Parallel port fails
External monitor does not work
Self tests, page 4-31
External keyboard does not work DIN connector, page
4-61
External trigger fails Trigger, page 4-62
Nonvolatile states not saved after power cycled
Date display is ‘’Date: 01-01-BL’’
Memory battery, page
4-67
† If the analyzer is failing, the grid may not appear for two minutes. Wait two minutes before assuming
that a low level failure occurred.
•
Follow the recommended troubleshooting test until you locate the faulty
assembly.
•
Replace the faulty assembly and follow the directions in ‘’What to do after
replacing an assembly’’ in chapter 6, ‘’Replacing Assemblies.’’
Troubleshooting the Analyzer Agilent 35670A
How to troubleshoot the analyzer
4-4