Keysight N5264A Service Guide 7-13
Repair and Replacement Procedures
Removing and Replacing the A10, A11, and A12 Boards (For analyzers with serial
numbers prefixed MY/SG/US5144 and below.)
Removing and Replacing the A10, A11, and A12 Boards
(For analyzers with serial numbers prefixed MY/SG/US5144 and
below.)
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 and inner covers. Refer to
.
3.
Remove all cables connected to the top of the board to be removed. Note
the location of each cable for reinstallation.
4.
Lift the two extractors (item
①
), (one at each end of the board), and lift the
board.
5.
Before removing the board completely, check the bottom of the board for
any attached cables and, if any, disconnect them.
Replacement Procedure
1.
Reverse the order of the removal procedure.
2.
Remember to connect any necessary cables to the bottom of the board
before reinstalling it.
3.
Perform the post-repair adjustments, verifications, and performance tests
that pertain to this removal procedure. Refer to
In February 2012, the N5264A analyzer underwent significant hardware
changes. These changes included a redesigned Signal Processing ADC
Module (SPAM) board, left side inner bracket, and right side inner bracket.
It is very important that this redesigned hardware be used only with
analyzer serial numbers prefixed MY/SG/US5204 and above. If you have an
analyzer whose serial number is prefixed MY/SG/US5144 and below, you
must use the previous version of hardware rather than the redesigned
“Top Assemblies, All Options” on page 6-11
Be very careful to use the appropriate hardware in your analyzer. Using the
wrong hardware can ruin analyzer components, resulting in additional
customer costs.