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Repair and Replacement Procedures
Removing and Replacing the A64 Tuner (Option 029)
Removing and Replacing the A64 Tuner (Option 029)
Tools Required
T-6 TORX driver (set to 4 in-lb)
— 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
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.
1. Disconnect the power cord.
2. Remove the outer cover. Refer to
3. Position the analyzer bottom side up.
4. Disconnect two semirigid cables (item
5. Disconnect the A64 tuner wire harness cable (item
6. Remove two screws (item
7. Move the disconnected semirigid cables out of the way and remove the
Replacement Procedure
1. Reverse the order of the removal procedure reusing the existing hardware.
2. Perform the post-repair adjustments, verifications, and performance tests
7-70
Figure 7-33
for this procedure.
It may be necessary to disconnect or remove other cables to gain access.
If you do, make note of these cable connections for reconnection later.
receiver (downconverter). Make note of the routing of this wire harness so
that it can be rerouted later in the same manner.
tuner from the analyzer. It may be necessary to loosen the other end of the
cables to allow them to be moved. Do not overbend them.
Torque all cable connectors to 10 in-lbs.
that pertain to this removal procedure. Refer to
"Removing the Covers" on page
) from the A64 tuner.
) that secure the A64 tuner to its bracket.
Table 7-2 on page
Keysight N5247B Service Guide
7-6.
) from the A59 noise
7-92.
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Troubleshooting
