servo motor repairs?

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neil_kc1

Thread Starter
SatelliteGuys Pro
Oct 14, 2004
400
19
KANSAS CITY AREA
I got started on my big dish and have had good success so far. I think i have a servo problem. I can hear it clicking as if it is turning the rotor but it only lets me get either vertical or horozontal channels. like on G-3 I can get Faith TV but none of the RTN's.

Is it possible that the servo was some how turned and won't allow full rotation the full 280 degrees? ( just a guess)

i have already ordered a new servo just in case, but how do you know when it is aligned correctly?
 
linuxman

linuxman

SatelliteGuys Pro
Jul 16, 2006
3,903
16
North West of St. Louis, MO
I got started on my big dish and have had good success so far. I think i have a servo problem. I can hear it clicking as if it is turning the rotor but it only lets me get either vertical or horozontal channels. like on G-3 I can get Faith TV but none of the RTN's.

Is it possible that the servo was some how turned and won't allow full rotation the full 280 degrees? ( just a guess)

i have already ordered a new servo just in case, but how do you know when it is aligned correctly?

Some of the old Co-Rotors and Polorotors had a stop built into them. Yours could be one of those.

If not, make sure the Co-Rotor if it is one has the Ku and C-Band LNB at the 10:30 - 4:30 positions. If C-Band Polorotor, make sure the C-Band LNB is at the 4:30 position.
 
voomvoom

voomvoom

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Lifetime Supporter
May 18, 2004
6,660
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Lizella, Georgia Republic
Can you explain the 4:30 position?
Like when you look at a clock, imagine a line running from the 4:30 position through the center to the 10:30 position. Then look at the LNB from the back, facing the dish, and put it on that imaginary line from 4:30 to 10:30...
Hope this helps you understand...!!
 
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neil_kc1

Thread Starter
SatelliteGuys Pro
Oct 14, 2004
400
19
KANSAS CITY AREA
ok just for clarification one more time. When i look down the throat of the feedhorn, the little antenna should be angled or slanted on a line that would connect 4 and 10 on the clock face?

sorry but i am a little thick.
 
linuxman

linuxman

SatelliteGuys Pro
Jul 16, 2006
3,903
16
North West of St. Louis, MO
ok just for clarification one more time. When i look down the throat of the feedhorn, the little antenna should be angled or slanted on a line that would connect 4 and 10 on the clock face?

sorry but i am a little thick.

Not any more than I am at times. :)

When the feed-horn is mounted on the dish, and you look at the dish on your True South Satellite, if you have a Co-Rotor, Ku lnb and C-Band LNB, the Ku LNB should be at the 10:30 position as if you were looking at a clock face.

If you only have a polorotor and C-Band LNB olnly, the blue servo motor will be at 10:30 and the C-Band LNB will be at 4:30.

Hope that helps. :)
 
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Lak7

SatelliteGuys Master
Pub Member / Supporter
Feb 28, 2008
5,451
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Near Chicago, Illinois
You should be standing on the ladder, looking at your dish.
The Ku LNB at 10:30, The C Band LNB at 4:30.
 

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