Removal and replacement of ADU modules
8-12
Chapter 8: Service
98-146706-A
4. Service switch.
In switch-off position the Motor Driver modules (DDM/SMD), the BCM and the BUC are
turned off for safe conditions during service and repair. The switch must be in on
position for normal ADU operation.
5. Motor Driver Module for cross elevation (DDM/SMD).
6. Cross elevation motor and encoder.
7. Zero Reference Module (x3) (ZRM) (not visible on photo). (2 in the figure above, i in the
figure below.
8. Motor Driver Module for elevation (on the bottom side) (DDM/SMD).
9. Elevation motor and encoder (not visible).
10. BUC Control Module (BCM).
11. Block Up Converter (BUC). (behind cable screen, not visible on photo)
12. Low Noise Block down converter (LNB).
13. Polarizer.
Transducer (OMT) - OPTIONAL)
14. Inertial Sensor Module (ISM).
15. Elevation locking pin to lock the antenna dish in a fixed position (for safety during
service) (not visible on photo).
SAILOR900Ka-IM-98-146706.book Page 12 Thursday, July 16, 2015 11:07 AM
