no power from receiver to lnb

[SatelliteAV]

There aren't positive and negative posts on voltage regulators. The negative is the receiver chassis and the positive are the three legs. There is never a zero or negative voltage on the voltage regulator IC. The power supply or components feeding power to the IC may have failed.

Smoke is never a good thing. You may have damaged additional components. It is best that you put the cover back on rather than proceed and risk more damage or worse!

The IC voltage regulator for the tuner will typically read 24vdc on the center leg and reduced voltages on the left / right legs that will depend on the selected polarity.

[fhorta]

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well, since i would otherwise be using receiver for a door stop, i retested on appropriate settings. i used dc voltage this time, the one with symbol of solid line and broeken line. the reason i used previous settings is i thought the symbols from multimeter and he sybmol behind receiver where coax cables go in had to match.

anyway, i'm not getting the readings that i should. the ic closest to chassis middle leg i get 0 reading. right leg gets about 7.9 and left gets 0. on other ic right leg gets about 25, middle o and left 1.259.



i would say both ic's need to be replaced? assuming nothing else was damaged from the smoke, and i'm willing to take a chance that nothing else is damaged: can i order this ic parts? where can i get them from? please if some one can let me know. if that is not possible, then i'll just consider thi s receiver a loss and move on thanks again.