7-44 Keysight N5244A/45A Service Guide
Repair and Replacement Procedures
Removing and Replacing the A33–A36 Test Port Couplers
7-
Removing and Replacing the A33–A36 Test Port Couplers
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)
— 1 inch open-end torque wrench (set to 72 in-lb)
— ESD grounding wrist strap
Removal Procedure
Refer to
for this procedure.
1.
Disconnect the power cord.
2.
Remove the front panel assembly. Refer to
Front Panel Assembly” on page 7-9
.
3.
Position the analyzer bottom side up.
4.
On 4-port models, it is necessary to remove the couplers in pairs: ports
1/3 and 2/4.
5.
Disconnect two semirigid cables (item
①
) from each coupler to be
removed.
6.
Disconnect the wire harness (item
➁
) from the corresponding front panel
LED board and place it out of the way.
7.
Remove the coupler nut (item
③
) from each coupler to be removed.
8.
Move the disconnected semirigid cables out of the way and remove the
coupler(s) from the analyzer.
Replacement Procedure
1.
Reverse the order of the removal procedure.
Adhere a new gap pad (4-port) or coupler bumper (2-port) (item
④
) to the
new coupler in the same location as on the old one. Replace the vibration
mount (item
⑤
Miscellaneous Parts” on page 6-171
for replacement part numbers.
Torque all connectors to 10 in-lbs. Torque coupler nuts to 72 in-lbs.
2.
Perform the post-repair adjustments, verifications, and performance tests
that pertain to this removal procedure. Refer to
Be careful not to damage the center pins of the semirigid cables. Some
flexing of the cables is necessary to remove the assembly. However, do not
over-bend the semirigid cables.
Содержание PNA-X N5244A
Страница 10: ...8 Keysight N5244A 45A Service Guide Contents ...
Страница 90: ...3 62 Keysight N5244A 45A Service Guide Tests and Adjustments Adjustments 3 ...
Страница 146: ...4 56 Keysight N5244A 45A Service Guide Troubleshooting Instrument Block Diagrams Sheet 4 4 ...
Страница 155: ...Keysight N5244A 45A Service Guide 5 9 Theory of Operation Synthesized Source Group Operation Figure 5 3 Source Group ...
Страница 174: ...5 28 Keysight N5244A 45A Service Guide Theory of Operation Receiver Group Operation 5 Figure 5 6 4 Port Receiver Group ...
Страница 175: ...Keysight N5244A 45A Service Guide 5 29 Theory of Operation Receiver Group Operation Figure 5 7 2 Port Receiver Group ...
Страница 188: ...5 42 Keysight N5244A 45A Service Guide Theory of Operation Noise Measurement Group Operation Option 029 5 ...
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Страница 472: ...8 18 Keysight N5244A 45A Service Guide General Purpose Maintenance Procedures Correction Constants 8 ...
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