Removing And Replacing The A11 Phase Lock Board - Agilent Technologies PNA Series Service Manual

Repair and Replacement Procedures

Removing and Replacing the A11 Phase Lock Board

Removing and Replacing the A11 Phase Lock Board
Tools Required
• T-10 TORX driver (set to 9 in-lb)
• T-20 TORX driver (set to 21 in-lb)
• ESD grounding wrist strap
Removal Procedure
Refer to Figure 7-8 for this procedure.
1. Disconnect the power cord.
2. Remove the outer and inner covers. Refer to
3. With a T-10 TORX driver, remove the two brackets that secure cables to the top of the
midweb.
4. With a T-10 TORX driver, remove the two screws (item
lock board.
5. Remove the A13 frequency offset receiver assembly, if present. Refer to
Replacing the A13 Frequency Offset Receiver Assembly" on page
6. Disengage the A12 source 20 from the A11 connector and slide the A12 partially out of
the analyzer. Refer to
7. Disconnect any flexible cables that are attached to the A11 phase lock board.
8. Lift the two extractors (item
9. While holding on to the extractors, lift the A11 phase lock board out of the analyzer.
Replacement Procedure
1. Reverse the order of the removal procedure.
2. Perform the post-repair adjustments, verifications, and performance tests that pertain
to this removal procedure. Refer to
7-20
"Removing and Replacing the A12 Source 20" on page
②
) located at each end of the board.
Table 7-2 on page
PNA Series Microwave Network Analyzers
"Removing the Covers" on page
①
) from the top of the A11 phase
7-66.
Service Guide E8361-90001
E8361A
7-6.
"Removing and
7-24.
7-22.