Chapter 11 345
Assembly Replacement Procedures
RF Section E4446A, E4447A, E4448A
A29 SBTX Driver Board
Removal
1. Remove the ribbon cables attached to the SBTX driver board.
2. The SBTX Driver board can now be removed from the RF section by
sliding it out while pulling up on the spring tab.
Replacement
1. Place the SBTX Driver board into position in the RF section and
slide it into place until the spring tab clicks into position.
2. Replace the ribbon cables to the correct locations.
A30 FIFA
Removal
1. Refer to Figure 11-24. Remove the semi-rigid cables W37, W39, W41,
W54, W55, and W56.
2. Refer to Figure 11-25. Using the T-10 driver, remove the 2 screws
(7).
3. The FIFA assembly can now be removed from the RF section.
Replacement
1. Place the FIFA assembly into position in the RF section.
2. Using the T-10 driver, replace the 2 screws that attach the assembly
to the bracket. Torque to 9 inch pounds.
3. Replace the semi-rigid cables to the correct locations. Torque to
10 inch pounds.