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Assembly Replacement
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
4. Remove ribbon cable W4 from A2J6. See
Do not fold the board assemblies out of the spectrum analyzer one at a
CAUTION
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
6. Fold both the A4 and A5 assemblies out of the spectrum analyzer as
7. Remove the cables from the assembly being removed, as illustrated
8. Remove the two screws that attach the assembly being removed to
Do not torque shield TORX screws to more than 8 inch-pounds.
CAUTION
Applying excessive torque will cause the screws to stretch.
202
to the top of the spectrum analyzer. These screws are labeled (2), (3),
and (4) in
Figure 4-8 on page
of the A2 board assembly.
spectrum analyzer with two hinges. Fold both the A2 and A3
assemblies out of the spectrum analyzer as a unit.
a unit.
in
Figure 4-9 on page
its two mounting hinges.
203. They are also labeled on the back
Figure 4-8 on page
204.
203.
Chapter 4
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