Service Guide E8364-90038
4- 27
PNA Series Microwave Network Analyzers
Troubleshooting
E8362C, E8363C, E8364C
Measurement System Troubleshooting
•
If all traces are present and are similar to the traces in
Figure 4-6
, then there are no major problems with
the analyzer’s measurement system. There may, however, be a minor failure in the analyzer.
To test further:
— Go to
Chapter 3 , “Tests and Adjustments,”
and perform all the tests in that section.
— If a problem still exists, contact Agilent. Refer to
“Contacting Agilent” on page 2-12
.
•
If any of the traces are not present, are noisy or distorted, or are at an incorrect level, then there is a
problem with the analyzer’s measurement system. Proceed to
“Where to Begin Troubleshooting”
.
Where to Begin Troubleshooting
For the purposes of troubleshooting, the analyzer block diagram is divided into the following functional
groups:
•
the source group
— A8 fractional-N synthesizer
— A10 frequency reference
— A11 phase lock
— A12 source 20
— A16 test set motherboard
— A17 LOMA 10
— A18 MA 20
— A19 splitter
— A20 LODA
— A21 SOMA 50 (E8363C and E8364C only)
•
the signal separation group
— A22 switch splitter
— A23 and A24 detectors (E8363C and E8364C only)
— 30-dB fixed attenuators (E8362C only)
— A25 and A26 test port couplers
— A36 and A37 60-dB step attenuators (Option UNL only)
— A38 and A39 bias tees (Option UNL only)
— Port 1, Port 2, A, B, R1, and R2 ports
•
the receiver group
— A27, A28, A29, and A30 first converters
— A31 receiver A
— A32 receiver R1
— A33 receiver R2
— A34 receiver B
— A35 receiver motherboard
— A6 SPAM
•
the frequency offset group (Option 080 only)
— A9 fractional-N synthesizer (Option 080 only)
Summary of Contents for E8362C
Page 11: ...Service Guide E8364 90038 1 1 1 Safety and Regulatory Information ...
Page 21: ...Service Guide E8364 90038 2 1 2 General Product Information ...
Page 33: ...Service Guide E8364 90038 3 1 3 Tests and Adjustments ...
Page 81: ...Service Guide E8364 90038 4 1 4 Troubleshooting ...
Page 137: ...Service Guide E8364 90038 5 1 5 Theory of Operation ...
Page 171: ...Service Guide E8364 90038 6 1 6 Replaceable Parts ...
Page 257: ...Service Guide E8364 90038 7 1 7 Repair and Replacement Procedures ...
Page 341: ...Service Guide E8364 90038 8 1 8 General Purpose Maintenance Procedures ...