4-42
Service Guide E8364-90001
Troubleshooting
PNA Series Microwave Network Analyzers
Measurement System Troubleshooting
E8362A, E8363A, E8364A
2. If the signal is not present, replace the A8 fractional-N synthesizer board. Refer to
“Removing and Replacing the A6, A8, and A10 Boards” on page 7-18
3. If the signal is present, reconnect cable W19, and continue testing at
Checking the A17 LOMA 10 Output
Perform this procedure if you observe a problem in any band and all signals from the A8
fractional-N synthesizer are present.
1. Refer to the block diagram at the back of this chapter and to
Locate semirigid cable W18, at the A17 LOMA 10.
CAUTION
Be careful not to damage the center pins of the semirigid cable. Some flexing
of the cable is necessary to measure the output. Do not over bend it.
2. Using a 5/16-inch torque wrench, disconnect W18 at the A17 LOMA 10.
3. Connect the spectrum analyzer to the open A17 connector.
4. For each frequency band in which problems were observed, set the network analyzer to
the frequency indicated in
5. Set the spectrum analyzer to measure each of the corresponding A17 output frequencies
listed in
.
6. If the signals are
<−
30 dBm or not present, replace the A17 LOMA 10. Refer to
“Removing and Replacing the A17 LOMA 10” on page 7-30
.
7. If the signals are present, reconnect cable W18, and continue testing at
Содержание E8362A
Страница 11: ...Service Guide E8364 90001 1 1 1 Safety and Regulatory Information ...
Страница 19: ...Service Guide E8364 90001 2 1 2 General Product Information ...
Страница 29: ...Service Guide E8364 90001 3 1 3 Tests and Adjustments ...
Страница 79: ...Service Guide E8364 90001 4 1 4 Troubleshooting ...
Страница 139: ...Service Guide E8364 90001 5 1 5 Theory of Operation ...
Страница 169: ...Service Guide E8364 90001 6 1 6 Replaceable Parts ...
Страница 215: ...Service Guide E8364 90001 7 1 7 Repair and Replacement Procedures ...
Страница 287: ...Service Guide E8364 90001 A 1 A Error Terms ...
Страница 302: ...A 16 Service Guide E8364 90001 Error Terms PNA Series Microwave Network Analyzers Error Term Data E8362A E8363A E8364A ...
Страница 303: ...Service Guide E8364 90001 B 1 B Option Enable Utility ...
Страница 309: ...Service Guide E8364 90001 C 1 C Firmware Upgrades ...
Страница 313: ...Service Guide E8364 90001 D 1 D Operating System Recovery ...