4-40
Service Guide E8364-90026
Troubleshooting
PNA Series Microwave Network Analyzers
Measurement System Troubleshooting
E8362B, E8363B, E8364B
Node Descriptions, A16 Test Set Motherboard, AUX 2
Node 811
−
10 V Reference
Node 811 senses the
−
10 V supply voltage which serves
as a measurement reference.
Node 812
+
1.78 V Bias Reference
Node 812 senses the
+
1.78 V bias supply voltage
which serves as a measurement reference.
Node 813
Phase Lock IF Detector
Node 813 senses the voltage input to the phase
lock IF detector.
Node 814
+
10 V Reference
Node 814 senses the
+
10 V supply voltage which serves
as a measurement reference.
Node 815
−
1.25 V Bias Reference
Node 815 senses the
−
1.25 V bias supply voltage
which serves as a measurement reference.
Node 816
+
5 V Reference
Node 816 senses the
+
5 V supply voltage which serves as a
measurement reference.
Node 817
Logger Drive Voltage Outpu
t
Node 817 senses the drive voltage applied
to the source ALC log amp.
Node 818
Detector Voltage Output
Node 818 senses the output voltage of the
phase lock IF detector.
Node Descriptions, A9 Fractional-N Synthesizer Board (Option 080 Only)
Node 911
+
5 Vdc Supply Voltage
Node 911 senses the 5 Vdc supply voltage which
serves as a measurement reference.
Node 912
1.5 to 3.0 GHz VCO Compensation
Node 912 senses the average voltage
output level of the 1.5 to 3.0 GHz VCO.
Node 913
1.5 to 3.0 GHz VCO Tune Voltage
Node 913 senses the average voltage
input level of the 1.5 to 3.0 GHz VCO.
Node 914
Heterodyne Band ALC Level
Node 914 senses the ALC output voltage
which is used to level the heterodyne circuit output for band 1.
Node 915
2.250 GHz VCO Tune Voltage
Node 915 senses the average voltage input
level of the 2.250 GHz VCO.
Node 916
Fundamental and Divide-by-2 Band ALC Level
Node 916 senses the
ALC output voltage which is used to level the heterodyne circuit output for
bands 2-25.
Node 917
2.250 GHz VCO Compensation
Node 917 senses the average voltage
output level of the 2.250 GHz VCO.
Node 918
ALC Level Adjust
Node 918 senses the voltage which is used to set the
offset on the heterodyne band ALC.
Summary of Contents for E8362B
Page 11: ...Service Guide E8364 90026 1 1 1 Safety and Regulatory Information ...
Page 19: ...Service Guide E8364 90026 2 1 2 General Product Information ...
Page 33: ...Service Guide E8364 90026 3 1 3 Tests and Adjustments ...
Page 83: ...Service Guide E8364 90026 4 1 4 Troubleshooting ...
Page 151: ...Service Guide E8364 90026 5 1 5 Theory of Operation ...
Page 185: ...Service Guide E8364 90026 6 1 6 Replaceable Parts ...
Page 269: ...Service Guide E8364 90026 7 1 7 Repair and Replacement Procedures ...
Page 351: ...Service Guide E8364 90026 8 1 8 General Purpose Maintenance Procedures ...