RF Technical Blog of World Family of Radio Maria

 

 

 

 

 

 

 

 

  HOW TO REPAIR THE LNB POWER SUPPLY   ON THE SAT RECEIVERS PROFLINE TRSrm AT FIRST WE HAVE TO TELL THAT YOU THAT IF YOU HAVE THIS KIND OF FAILURE 99% OF THE TIME , DEPENDS FROM THE BAD WIRING OF THE EQUIPOTENTIAL GROUND   SYSTEM . THIS MEANS THAT BEFORE CHANGING THE RECEIVER , YOU HAVE TO CHECK TO HAVE THE GROUNDING KIT ON THE SAT INPUT CABLE POSSIBLY BEFORE COMING INTO THE SITE , CONNECTED TO A GOOD COMMON EQUIPOTENTIAL GROUND POINT AND THE CASE OF THE RECEIVER ALSO CONNECTED WITH HIS GROUNDING SCREW TO THE SAME POINT OR AT LEAST TO THE COMMON GRUNDING POINT OF THE RACK THAT HAS THEN TO BE CONNECTED TO THE GOOD COMMON EQUIPOTENTIAL GROUND POINT . OF COURSE ALSO THE DISH AND THE LNB HAS TO FOLLOW THE SAME PRINCIPLES . IF NOT , YOU WILL CONTINUE TO DESTROY THE RECEIVER WITH LIGHTNINGS AND YOU ARE LIABLE FOR THIS DAMAGE . …………………………………………………………………………………………………………… The Profline TRSrm receivers are the most common SAT receivers we used all around .There are two types : A)