A21 Feloma; Fl1 Low Pass Filter - Agilent Technologies PSA Series Service Manual

Assembly Replacement Procedures
RF Section E4446A, E4447A, E4448A
5. To remove the YTO, remove the two bottom screws that attach it to
When you remove the two screws that attach the YTO to the bracket,
CAUTION
the YTO will become detached from the YTO can. Take care to hold the
complete YTO assembly while removing these screws.
Replacement
1. Carefully place the YTO into the bracket.
2. Using the T-10 driver, replace the screws to attach the device to the
3. Place the bracket into the RF section. Replace the three screws to
4. Replace the cables to the correct locations. Torque the semi-rigid
5. Replace the ribbon cables to the YTO and SBTX/RYTHM.

A21 FELOMA

Removal
1. Refer to
2. Refer to
3. Refer to
4. The FELOMA can now be removed from the RF section.
Replacement
1. Place the FELOMA in place on the bracket in the RF section.
2. Using the T-10 driver, replace the 2 screws. Torque to 9 inch pounds.
3. Reattach the wire harnesses to the FELOMA.
4. Replace the cables to the correct locations. Torque the semi-rigid

FL1 Low Pass Filter

Removal
1. Refer to
342
the bracket. Do not remove the RYTHM from the bracket.
bracket. Torque to 9 inch pounds.
attach the bracket to the RF section. Torque to 9 inch pounds.
cables to 10 inch pounds.
Figure 11-24. Remove the semi-rigid cables W24, W35, W38,
W41, and W43.
Figure 11-23. Remove the two wire harnesses from the
FELOMA (9).
Figure 11-25. Using the T-10 driver, remove the 2 screws
(2).
cables to 10 inch pounds.
Figure 11-23. Hold the FL1 lowpass filter (8) with a 7/16"
open-end wrench while loosening semi-rigid cables W36 and W37.
Chapter 11