Agilent Technologies N5242A, Service Manual

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7-8 Service Guide N5242-90001
Repair and Replacement Procedures PNA Series Microwave Network Analyzers
Removing and Replacing the Front Panel Assembly N5242A
Removing and Replacing the Front Panel Assembly
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 7-2 for this procedure.
1. Disconnect the power cord.
2. Remove the outer cover. Refer to “Removing the Covers” on page 7-6 .
3. With a 5/16 inch torque wrench, remove all the semirigid jumpers (item
①
) from the
front panel.
4. With a T-10 TORX driver, remove the 12 screws (item
②
) from the sides of the frame.
CAUTION
Before removing the front panel from the analyzer, lift and support the front
of the analyzer frame.
5. Slide the front panel over the test port connectors.
6. Disconnect the ribbon cable (item
③
) from the A1 front panel interface board.
Replacement Procedure
IMPORTANT
When reconnecting the front-panel jumpers, torque the connectors to 10 in-lb.
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 Table 7-2 on page 7-64 .