Removing And Replacing The A19 Test Set Motherboard - Agilent Technologies N5242A Service Manual

Repair and Replacement Procedures

Removing and Replacing the A19 Test Set Motherboard

Removing and Replacing the A19 Test Set Motherboard
Tools Required
• T-10 TORX driver (set to 9 in-lb)
• T-20 TORX driver (set to 21 in-lb)
• 5/16 inch open-end torque wrench (set to 10 in-lb)
• ESD grounding wrist strap
Removal Procedure
Refer to Figure 7-12
1. Disconnect the power cord.
2. Remove the outer cover. Refer to
3. Position the analyzer bottom side up.
4. Disconnect ALL ribbon cables (item
A19 test set motherboard.
5. Remove connector hardware (item
6. Remove connector hardware (item
7. Remove 10 screws (item
8. Slide the A19 test set motherboard toward the front of the instrument until the rear
panel BNC connectors are free of the rear panel, then lift the motherboard and remove
it from 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
7-26
for this procedure.
"Removing the Covers" on page
①
③
) from 11 rear panel BNC connectors.
④
) from the rear panel TEST SET I/O connector.
⑤
) from the A19 test set motherboard.
Table 7-2 on page
PNA Series Microwave Network Analyzers
) and ALL wire harnesses (item
7-64.
N5242A
7-6.
②
) from the
Service Guide N5242-90001