Keysight N5227B Service Guide 7-7
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
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 semi-rigid jumpers (item
①
) from the front panel.
4.
With a T-10 TORX driver, remove the 12 screws (item
➁
) 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
③
) 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
.
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.