C-COM Satellite iNetVu, Руководство по обслуживанию, Страница: 67 / 109

iNetVu™ Service Manual Page 67 of 109
VII. Go to
Maintenance
.
VIII. Verify that the
Pot Zero
and
Pot Factor
in the Polarization
Parameters match the following table. These are the default values
that your system should be operating with.
Fig. 25: Polarization Potentiometer Parameters
IX. Restore to default values if required and click
Send PL.
Click
Yes
when asked to save to the EPROM.
X. Verify Polarization Angle again.
e. Set
Elevation
to 25.0
f. Set both
Azimuth
and
Polarization
to 0.0.
g. Click
Deploy Dish
to raise the dish.
h. Set
Duration
to 50.
i. Set
Speed
to 9
j. Click
Polarization CW
. The dish should move in small increments and the
Polarization Angle will change. This indicates normal operation.
8)
To calibrate:
g.
Ensure there is sufficient clearance for the dish to move and rotate.
h. Go to
Maintenance
.
i. Click
Calibrate Polarization
.
j. When calibration process is complete, go to
Advanced Controls
.
k. Click
Find Satellite
.
l. When the system has found and locked on satellite, click
Calibrate
Target
. This concludes the calibration process.
9)
Click
Stop
in
Advanced Controls
to halt all operations.
10)
Manually rotate the dish CW until it stops. Verify that the Polarization Angle is:
A1200: -90 + 2

A740/A980: -70 + 2

11)
Manually rotate the dish CCW until it stops. Verify that the Polarization Angle is
+90+2

A1200: +90 + 2

A740/A980: +70 + 2

12)
Rotate the dish back to stow position.