A new one on me

Radioguy41

Thread Starter
SatelliteGuys Pro
Aug 7, 2008
1,631
1,051
Lehighton, Pennsylvania
Today my motorized (STAB 90/USALS) 90cm FTA dish stopped moving. I tried everything with the receiver and no go. I tested voltages, continuity, and cables and all tested OK. So, just for chuckles I disconnected the cable from the LNB and there she went! Connected it back and the dish won't move. Disconnect and she moves. Replacing the LNB fixed it. That's a new one on me, a defective LNB disabling the dish motor. o_O
 

FTA4PA

Satellite Guys Family
Lifetime Supporter
Nov 13, 2013
3,725
1,740
Central Pennsylvania
Today my motorized (STAB 90/USALS) 90cm FTA dish stopped moving. I tried everything with the receiver and no go. I tested voltages, continuity, and cables and all tested OK. So, just for chuckles I disconnected the cable from the LNB and there she went! Connected it back and the dish won't move. Disconnect and she moves. Replacing the LNB fixed it. That's a new one on me, a defective LNB disabling the dish motor. o_O
Sounds like it was causing a short. Any signs of water infiltration in the lnb?
 

primestar31

SatelliteGuys Master
Mar 15, 2005
8,377
4,644
Beta Omicron Delta III
You were probably trying to move it while tuned to a vertical 13 volt channel, and that lnb was drawing a little bit too much current.

I wonder what would have happened if you had tried a horizontal 18 volt channel?
 
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