Maintenance
Disassembly and Reassembly 5
5-13
27 GHz Control PCA (96270A)
Six panhead screws hold the PCA in place. To remove the 27 GHz Control PCA,
see Figure 5-6:
1. Remove the top cover from the Product.
2. Remove the Internal Shield from the Product.
3. Remove the Output PCA.
4. Disconnect the 60-pin IDE ribbon cable.
5. Disconnect the 2 MCX connectors from the front edge of PCA by gently
pulling them straight out.
6. Disconnect the SMB connector located at the rear right of the PCA by pulling
firmly upwards by the body of the connector.
7. Disconnect the SMA cable from position 1 of the coaxial switch using an
8 mm spanner, see note.
8. Disconnect the SMA cable from the front edge of the 27 GHz metal module
using an 8 mm spanner, see note.
9. Disconnect the Microwave output semi-rigid cable connector from the bracket
(or Attenuator if option is fitted) using an 8 mm spanner, see note.
Note
These connectors are torque tightened (1 Nm). Do not attempt to
tighten before releasing these connectors.
10. Remove the 6 panhead-fixing screws, slide the PCA slightly forward and lift
from the left edge and maneuver the PCA out of the chassis.
hpn377.eps
Figure 5-6. Removing the 27 GHz Control PCA (96270A)
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