Agilent Technologies PNA Series Service Manual page 137

PNA Series Microwave Network Analyzers
E8361A
Checking the A13 Frequency Offset Receiver Band 0 Output
Perform this procedure if you observe a problem in band 0 and all signals from the A12
source 20 output are present.
1. Refer to the block diagram at the end of this chapter and to
Including 080" on page
receiver output.
Be careful not to damage the center pins of the semirigid cable. Some flexing
CAUTION
of the cables is necessary to measure the output.
2. Disconnect the flexible cable at the frequency offset receiver.
3. Connect the spectrum analyzer to the frequency offset receiver connector J6.
4. Set the network analyzer to a CW frequency of 25 MHz.
• The spectrum analyzer should measure a signal at 1.04 MHz.
5. If the measured signal is not present, Replace the A13 receiver. Refer to
Replacing the A13 Frequency Offset Receiver Assembly" on page
6. If the signal is present the frequency offset group is confirmed to be operational.
Service Guide E8361-90001
6-19. Locate the flexible cable W95 at the frequency offset
Troubleshooting
Measurement System Troubleshooting
"Top Cables, All Options
"Removing and
7-24.
4- 57