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Chapter 6
Removal & Replacement
6
6.2.2 R&R of Antenna Tracking Board /Low Noise
Amplifier Module
Figure 6-4: TT-3052A ADU, ATB/LNA Module
Removal:
1. Remove the Radome Top as described in the previous section
Remove & replacement of Radome Top
.
2. Disconnect the six (6) plugs indicated above.
3. Carefully lift the cable holder, positioned at the bottom of the
ATB/LNA Module, and release the cables.
4.
Unscrew and remove the two (2) big finger nuts, put aside as
they are going to be reused in the replacement of the ATB/
LNA.
5. Carefully remove the ATB/LNA from the antenna panel.
Replace:
1. Carefully position the new ATB/LNA (S-88-126533-A) over the
studs on the antenna frame.
2.
Fasten the two (2) finger nuts (removed in above
Removal
:
step 4) with no more than 1.2 Nm.
3. Reconnect the plugs (follow the note above), make sure that
they are properly fitted.
4.
Carefully lift the cable holder and fit the cables in the holder.
5. Reinstall the Radome Top as described in previous section
Removal & replacement of Radome Top
.
6.2.3 R&R of Cross-Elevation Motor
Figure 6-5 and 6-6: TT-3052A ADU, Cross-Elevation Motor
The Cross-Elevation Motor and the Elevation Motor are identical
type of motors.
1
2
3
4
Figure 6-4a: LNA close-up.
1.
From antenna panel (right
side seen from rear)
2.
Brown cable from HPA (TX)
3.
From antenna panel (left side
seen from rear)
4.
Black cable to HPA (RX)
NOTE!
Remember to release
connector latches on the plugs
(the two (2) squared plugs)
before pulling them off.
NOTE!
Do not pull the wires - pull the
plugs.
NOTE!
A click should be heard when
the plug is fully inserted.
Summary of Contents for Sailor 250 FleetBroadband
Page 1: ...FleetBroadband Installation Training manual Commissioning and On Board repair ...
Page 2: ......
Page 4: ......
Page 9: ...Inmarsat Network ...
Page 10: ......
Page 34: ...24 1 Chapter 1 Inmarsat Network Figure 1 34 Return direction connection bearers ...
Page 36: ......
Page 37: ...Product Presentation ...
Page 38: ......
Page 70: ......
Page 71: ...Installation ...
Page 72: ......
Page 107: ...97 SAILOR FleetBroadBand Training Manual 3 ...
Page 108: ......
Page 109: ...Interfaces ...
Page 110: ......
Page 132: ......
Page 133: ...Repair ...
Page 134: ......
Page 165: ...155 SAILOR FleetBroadBand Training Manual 5 Figure 5 59 ...
Page 186: ......
Page 187: ...Removal Replacement ...
Page 188: ......
Page 217: ...207 SAILOR FleetBroadBand Training Manual 6 ...
Page 218: ......
Page 219: ...Software Upload ...
Page 220: ......
Page 221: ...211 SAILOR FleetBroadBand Training Manual 7 Figure 7 1 ...
Page 230: ......
Page 231: ...System Test ...
Page 232: ......
Page 236: ......
Page 237: ...Abbreviation ...
Page 238: ......
Page 242: ......
Page 243: ...R R of EXP 727Antenna ...
Page 244: ......
Page 255: ...245 SAILOR FleetBroadBand Training Manual 10 ...
Page 256: ......
Page 257: ...R R of EXP 325Antenna ...
Page 269: ......