Agilent Technologies PNA Series Service Manual page 63

PNA Series Microwave Network Analyzers
E8361A
If the Analyzer Fails this Test:
• A failure of this test indicates a failure of one or more of the following assemblies.
• A31 channel A receiver
• A34 channel B receiver
• A6 SPAM board
• Since all four receivers are identical, the channel A and channel B receivers can be
swapped with the channel R1 and channel R2 receivers to determine if they are the
cause of the failure. Refer to
Receiver Modules and LO Reject Filter Board" on page
receivers, repeat this test.
• If the analyzer still fails this test, replace the A6 SPAM board and repeat this test.
Refer to"Removing and Replacing the A6, A8, A9, and A10 Boards" on page
Service Guide E8361-90001
Performance Tests (Agilent N2721A Software Package)
"Removing and Replacing the A31, A32, A33, and A34
Tests and Adjustments
7-50. After swapping the
7-18.
3- 35