Replacement - HP 8560E Service Manual

Assembly Replacement
Procedure 9. A14 and A15 Assemblies
DO NOT fold the board assemblies out of the spectrum analyzer one at
CAUTION
a time. Always fold the A14 and A15 assemblies as a unit. Folding out
one assembly at a time binds the hinges attaching the assemblies and
may damage an assembly and hinge.
4. The board assemblies are attached to the spectrum analyzer right
5. Remove all cables from the assembly being removed.
6. Remove the two screws that attach the assembly being removed to
DO NOT torque shield screws to more than 8 inch-pounds. Applying
CAUTION
excessive torque will cause the screws to stretch.

Replacement

1. Attach the removed assembly to the two chassis hinges with two
2. Attach all cables to the assembly as illustrated in
3. Lay the A14 and A15 assemblies flat against each other in the folded
4. Fold both board assemblies into the spectrum analyzer as a unit.
5. Secure the assemblies using the eight screws removed in step 3
6. Secure the spectrum analyzer cover assembly as described in
198
side frame with two hinges. Fold both the A14 and A15 assemblies
out of the spectrum analyzer as a unit.
its two mounting hinges.
panhead screws.
page 199. When connecting W34 to A15, torque the SMA connector
to 113 Ncm (10 in-lb).
out position. Make sure that no cables become pinched between the
two assemblies. Ensure that all coaxial cables are clear of hinges and
standoffs before continuing onto the next step.
Use caution to avoid damaging any cable assemblies.
under "Removal." See
"Procedure 1. Spectrum Analyzer Cover."
Figure 3-25 on page
Figure 3-26 on
197.
Chapter 3