Antenna Lnb Replacement - KVH Industries TracVision S2 Owner's Manual

A Guide to TracVision S2
When replacing the LNB, make
certain to restore it to its original
orientation, as shown in
The CALLNB Function requires the
antenna to be pointed directly at
the satellite peak before performing
this routine. Using the FINDSAT
command will ensure that the
antenna is receiving the strongest
possible signal.
5-6
9. Carry out the LNB calibration procedure

5.4.2 Antenna LNB Replacement

Estimated Time to Repair:
The LNB receives preamplifier operating power from the IRD via
the PCB –
from its power source before removing or reconnecting the LNB.
1. Disconnect both RF coaxial connectors at the LNB.
2. Remove the wing screw and washer from the LNB
3. Remove the top of the LNB clamp –
4. Remove the LNB.
5. Replacement is the reverse of this procedure.
Figure 5-3.
Antenna LNB Normalization and Stability Test
1. Connect a PC to the maintenance port as described
2. Ensure that the antenna is tracking the satellite.
3. Type
4. Type
5. Type
6. Type
(Section 5.4.2).
⁄ hour
1
2
Fig. 5-1 and 5-3. Be certain that the IRD is disconnected
clamp – Fig. 5-3.
Check the rotation to ensure that the LNB is not
striking any wires or the baseplate.
in Section 4.4, "Computer Diagnostics."
HALT<cr> (<cr> indicates a carriage return/
ENTER key) to put the system into Idle Mode.
DEBUGON<cr>
Debug Mode.
FINDSAT<cr> to begin the automatic signal
peaking process. Wait until the antenna peaks the
satellite signal and is motionless. The screen will
FINDSAT: PASS .
display
=CALLNB<cr>
Normalization Function.
Note: The CALLNB Function requires the antenna
to be pointed directly at the satellite peak before
performing this routine.
Fig. 5-3.
to put the system into
to start the LNB