Removing And Replacing The Front Panel Assembly - Keysight Technologies N5221A Service Manual

Repair and Replacement Procedures

Removing and Replacing the Front Panel Assembly

Removing and Replacing the Front Panel Assembly
Tools Required
— T-10 TORX driver (torque to 9 in-lb or 1.02 N.m)
— T-20 TORX driver (torque to 21 in-lb or 2.38 N.m)
— 5/16 inch open-end torque wrench (torque to 10 in-lb or 1.13 N.m)
— ESD grounding wrist strap
Removal Procedure
Refer to
1. Disconnect the power cord.
2. Remove the outer cover. Refer to
3. With a 5/16 inch torque wrench, remove all the semirigid jumpers (item
4. With a T-10 TORX driver, remove the 12 screws (item
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
Replacement Procedure
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
7-8
Figure 7-2 for this procedure.
①
) from the front panel.
the frame.
board.
that pertain to this removal procedure. Refer to
"Removing the Covers" on page
➁
③
) from the A1 front panel interface
Table 7-2 on page
Keysight N5221A/22A Service Guide
7-6.
) from the sides of
7-60.