7-14 Keysight N5290/1A Service Guide
Repair and Replacement Procedures
Removing and Replacing the A2–A4 Boards
7-
Removing and Replacing the A2–A4 Boards
Tools Required
— T-10 TORX driver (set to 9 in-lb)
— 5/16 inch open-end torque wrench (set to 10 in-lb)
— ESD grounding wrist strap
Removal Procedure
Refer to
“Bottom Assemblies, 2-Port, Option 200” on page 6-21
Assemblies, 4-Port, Option 400” on page 6-26
Miscellaneous Parts, All Options” on page 6-36
for this procedure.
1.
Disconnect the power cord.
2.
Remove the outer cover. Refer to
“Removing the Cover” on page 7-8
.
3.
Instructions for A2 LO Preamplifier board, A3 phase compensation PCA,
and A4 LODA board (Refer to
through
. For more on cable locations, see also
and
a.
A2 LOPA and A4 LODA boards only:
i.
Remove the semi-rigid N5292-20002 cable (item
①
) from A4
LODA board to A2 LOPA board.
ii.
Remove the semi-rigid N5292-20003 cable (item
➁
) from the
A4 LODA board to A2 LOPA board.
b.
A2 LOPA board only:
i.
Disconnect the LO OUT semi-rigid cable N5292-20004 (item
③
) from the LOPA board (i.e., The other end of this cable is
connected to the rear panel’s LO OUT connector).
ii.
Disconnect the N5292-60006 ribbon cable from the LOPA
board (i.e., the other end goes to the A5 test set
motherboard).
iii.
Remove the 0515-0372 (x4) screws (item
④
).
iv.
Remove the A2 LOPA board.
c.
A3 phase compensation PCA and A4 LODA boards only: Remove the
semi-rigid N5292-20005 (2-ports (x2) and 4-ports (x4)) cables
(item
⑤
) from both boards. Note the location of the cable labels
before removing the cables (i.e., cable labels should be closest to
the A3 phase compensation PCA).
d.
A3 phase compensation PCA only:
i.
4-port only: Disconnect the port 3 and port 4 N5292-60019
short flex cables (item
⑥
) from the A3 board.
ii.
Disconnect the port 1 and port 2 N5292-60020 long flex
cables (item
➆
) from the A3 board.
Содержание N5222B
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Страница 10: ...6 Keysight N5292A User s and Service Guide Contents ...
Страница 28: ...1 18 Keysight N5290 1A Service Guide Safety and Regulatory Information Site Preparation 1 ...
Страница 86: ...3 50 Keysight N5290 1A Service Guide System Tests and Adjustments Adjustments 3 ...
Страница 128: ...5 10 Keysight N5290 1A Service Guide Theory of Operation Theory of Operation 5 ...
Страница 185: ...Keysight N5290 1A Service Guide 7 9 Repair and Replacement Procedures Removing the Cover Figure 7 3 Outer Cover Removal ...
Страница 214: ...7 38 Keysight N5290 1A Service Guide Repair and Replacement Procedures Post Repair Procedures 7 ...
Страница 224: ...8 10 Keysight N5290 1A Service Guide General Purpose Maintenance Procedures Correction Constants 8 ...
Страница 225: ...Installation Note Xxxxx xxxxx 3 ...