Agilent Technologies 856290216 Procedure 5. A2, A3, A4, and A5 Assemblies, Assembly Replacement 4

Procedure 5. A2, A3, A4, and A5 Assemblies

Procedure 5. A2, A3, A4, and A5 Assemblies

Removal

1.Remove the spectrum analyzer cover.

2.Place the spectrum analyzer on its right side frame.

3.Remove the eight screws holding the A2, A3, A4, and A5 assemblies to the top of the spectrum analyzer. These screws are labeled (2), (3), and (4) in Figure 4-7. They are also labeled on the back of the A2 board assembly.

4.Remove ribbon cable W4 from A2J6. See Figure 4-7.

Caution	Do not	fold the board assemblies out of the spectrum analyzer one at a time.
	Always	fold the A2 and A3 assemblies as a unit and the A4 and A5 assemblies
	as a unit. Folding out one assembly at a time binds the hinges attaching the
	assemblies and may damage an assembly and hinge.

5.The board assemblies are attached to the right side frame of the spectrum analyzer with two hinges. Fold both the A2 and A3 assemblies out of the spectrum analyzer as a unit.

6.Fold both the A4 and A5 assemblies out of the spectrum analyzer as a unit.

7.Remove the cables from the assembly being removed, as illustrated in Figure 4-8.

8.Remove the two screws that attach the assembly being removed to its two mounting hinges.

Caution Do not torque shield TORX screws to more than 8 inch-pounds. Applying excessive torque will cause the screws to stretch.

Assembly Replacement 4- 15