775 Code---Bad LNB Or SWIM Power?

[Rebel Racing]

Hi Guys,

Working on a HR24 with a Slimline Dish. Worked fine Monday night and when we powered in on Tues Morning I get a 775 error. Red button re boot doesn't help. Total power down makes no difference. Checked all connections and all was fine. Equipment is roughly 8-10 yr old. I can access the list of recorded media. I am thinking it is either the LNB or the SWIM power (the light is on). Thoughts??

Thanks!!

 

[Tom Speer]

Your diagnosis is correct. Do you have any SWM switches? If you just have splitters, trace the power through port 1 (red port) of any splitter in the path from the SWM power supply to the LNB. Reseat all the coax connections. The SWM power should be 18 to 25 volts between the center and shield on any coax going into port 1 of any splitter, and the same voltage should be on the common or upstream port of any splitter. If you can get to the LNB, disconnect the coax and measure the voltage on the coax. If the voltage is getting