Keysight N5227B Service Guide 7-17
Repair and Replacement Procedures
Removing and Replacing the A4–A17 Boards
Removing and Replacing the A4–A17 Boards
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)
— 9 mm socket or open-end wrench (torque to 21 in-lb or 2.38 N.m)
— ESD grounding wrist strap
Removal Procedure
Refer to
Figure 6-6, “Top Assemblies, All Options,”
for this procedure.
1.
Disconnect the power cord.
2.
Remove the outer and inner covers. Refer to
.
3.
Instructions for A5 and A10 source boards (Refer to
for cable locations):
a.
A10 source board only: on the bottom side of the analyzer,
disconnect cable W7 from the A12 board and cable W8 from the
A13 board.
b.
A5 source board only: on the top side of the analyzer, disconnect the
cables from the A4, A7, and A8 boards.
c.
On the top side of the analyzer, remove screws at each end of the
source board to be removed.
d.
Lift the two extractors, one at each end of the board, and lift the
board out of the chassis.
4.
Instructions for A4, A7, A8, A12, A13, A14, A15, A16, and A17 boards:
a.
Remove all cables connected to the top of the board to be removed.
Note the location of each cable for reinstallation.
b.
Lift the two extractors, one at each end of the board, and lift the
board.
c.
Before removing the board, check the bottom of the board for any
attached cables.
Replacement Procedure
1.
Reverse the order of the removal procedure.
Remember to connect any necessary cables to the bottom of the board
before reinstalling it. If replacing a doubler board, make sure the new
board has loads connected to the same ports as were used on the old
board. This may require moving a load from the old board to the new board
or removing the load from the new board.
Содержание N5227B
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