Keysight N5224B, Руководство по обслуживанию

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Keysight N5224B/25B Service Guide 7-9
Repair and Replacement Procedures
Removing and Replacing the Front Panel Assembly
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 on page 7-10 for this procedure.
1. Disconnect the power cord.
2. Remove the outer cover. Refer to “Removing the Covers” on page 7-7 .
3. With a 5/16 inch torque wrench, remove all the semi-rigid jumpers (item

) from the front panel.
4. With a T-10 TORX driver, remove the 12 screws (item

) from the sides of
the frame.
5. Remove the lower panel overlay.
6. With a T-10 TORX, remove the 2 screws (2-Port) or 4 screws (4-Port).
7. Slide the front panel over the test port connectors.
8. Disconnect the ribbon cable (item  ) from the A1 front panel interface
board.
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 Table 7-2 on page 7-78 .
Before removing the front panel from the analyzer, lift and support the
front of the analyzer frame.
When reconnecting the front-panel jumpers, torque the connectors to 10
in-lb.