VS9000 Loses Signal Strength After A Few Hours Of Opperation??

[Dalien]

My VS9000 loses dish signal strength after roughly 2 hours of opperation. I feel something heats up over those 2 hours that starts to cut out the signal strength. Could this be a cap(s) or diode on the power supply board? Any help would be greatly appreciated!

[Dalien]

I should have mentioned that typically the horizontal transponders give very low signal levels where as the vertical ones are stronger but still somewhat weak. I have an 8PSK module installed and I also found that if I turn off the external tuner, the signal levels increase. Could this be a faulty 8PSK?

[Shark1959]

I've noticed a signal loss as well of about 10 points over time. If I go off the channel and back on the level comes up and then slowly drifts back down. When I put my VS Ultra in its place I get a much higher signal and it stays there. I'm going to test the signals of a few other makes I have on the shelf.

Cheers :)

Jack

[Terryl]

The types of LNB's you all are using will help us quite a bit.


As far as caps on the power supply, look for any that have a domed look to them, normal (or good) caps have a flat top to them (the caps look like little gray, blue or black beer cans) any with a bulged out or domed up look to them are dried out and bad.

A loss of one polarity ( the H ones) is a sign of the system voltage dropping too low, this points to ether a bad switch, or a bad (or going bad) DC power supply to the LNB's.

When the caps go bad the AC ripple goes up, this causes a drop in the DC voltage available to the voltage regulators, most standard or legacy LNB's use a DC voltage to switch between "H" and "V" transponders.

To properly switch to the "H" transponders the receiver (or switch) needs to supply 17.5 to 19 volts DC.