Agilent Technologies E8362C Service Manual page 120

Troubleshooting
Measurement System Troubleshooting
Checking the A22 Switch Splitter and A25 and A26 Test Port Couplers
1. Locate the following semirigid cable at the A22 switch splitter:
Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . W5 for Port 1 or W6 for Port 2
Option UNL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . W51 for Port 1 or W52 for Port 2
Option 014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . W61 for Port 1 or W62 for Port 2
Option UNL/014. . . . . . . . . . . . . . . . . . . . . . . . . . . W51 for Port 1 or W52 for Port 2
2. Using a 5/16-inch torque wrench, disconnect the semirigid cable at the A22 switch splitter.
3. Connect the spectrum analyzer to the connector. Set the spectrum analyzer to measure a signal at 1GHz.
4. If the 1 GHz signal is not present, replace the A22 switch splitter. Refer to
A22 Switch Splitter" on page
5. If the 1 GHz signal is present:
Standard . . . . . . . . . . . . . . replace the appropriate test port coupler. Refer to
Option 014 . . . . . . . . . . . . . replace the appropriate test port coupler. Refer to
Option UNL . . . . . . . . . . . . reconnect the semirigid cable and go to
Option UNL/014. . . . . . . . reconnect the semirigid cable and go to
Checking the A36 and A37 60-dB Step Attenuators (Option UNL)
1. Locate the following semirigid cable at the appropriate step attenuator:
Option UNL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . W53 for Port 1 or W54 for Port 2
Option UNL/014. . . . . . . . . . . . . . . . . . . . . . . . . . . W81 for Port 1 or W82 for Port 2
2. Using a 5/16-inch torque wrench, disconnect the semirigid cable at the step attenuator.
3. Connect the spectrum analyzer to the step attenuator connector. Set the spectrum analyzer to measure a
signal at 1 GHz.
4. If the 1 GHz signal is not present, replace the appropriate 60-dB step attenuator. Refer to
Replacing the A36 and A37 60-dB Source Step Attenuators (Option UNL)" on page
5. If the 1 GHz signal is present, reconnect the semirigid cable and go to
Tees (Option UNL)" on page
Checking the A38 and A39 Bias Tees (Option UNL)
1. Locate the following semirigid cable at the appropriate bias tee:
Options UNL and UNL/014. . . . . . . . . . . . . . . . . . W55 for Port 1 or W56 for Port 2
2. Using a 5/16-inch torque wrench, disconnect the semirigid cable at the bias tee.
3. Connect the spectrum analyzer to the step attenuator connector. Set the spectrum analyzer to measure a
signal at 1 GHz.
4-40
7-44.
the A25 and A26 Test Port Couplers" on page
the A25 and A26 Test Port Couplers" on page
Step Attenuators (Option UNL)" on page
Step Attenuators (Option UNL)" on page
4-40.
PNA Series Microwave Network Analyzers
E8362C, E8363C, E8364C
"Removing and Replacing the
"Removing and Replacing
7-50.
"Removing and Replacing
7-50.
"Checking the A36 and A37 60-dB
4-40.
"Checking the A36 and A37 60-dB
4-40.
"Removing and
7-58.
"Checking the A38 and A39 Bias
Service Guide E8364-90038