Re: Samsung UE32F5000AK sound ok, no picture.

I have now got inside the TV and have the four LED strips exposed. None of them come ON when power is applied. The diode look okay - no burn marks. There are nine diodes per strip. Are they wired in series or parallel? There is no voltage across th ends of the strips, which suggests that the power supply is faulty.

They appeared to be wired in series, so with 36 diodes and with a forward voltage for a white diode of about 3.3V the total is 118V.

When I measure from the anode of strip 1 to the cathode of the...

Re: Samsung UE32F5000AK sound ok, no picture.

This thread started several years ago, but Samsung TVs still seem to fail. My model is a UE32F5000Ak as mentioned in this thread. I have exactly the same problem os Macwireworld - have sound, but black screen, can see text on screen with a torch. The photographs are identical to those of macwireworld. The voltages from the power board to the main control board are:
12.8V
12.8V
12.8V
12.8V
ground
5.1V
5.1V

The voltages from the other side of the power board to the LEDs are all 0V...