This one when plugged in comes on red st-by light,press power button r/s you get a white light,flashes two or three times then solid white.At no time do you see even a flash of back lights on screen.I've pressed menu button & shone torch at screen,but no sign of back lights at all.The multi connector that goes off to the SSB,all voltages as marked,but one marked drive on,which I guess is for the LED back lights,doesn't seem to move at all.Back light control is very complicated,with a bank of transistors & a micro i.c. on the back of the board,I've tried to see if any drive voltage comes up,but no sign.No signs of stress on components in power supply or ssb boards.
Topic: LG 42LV550T no sound or picture. (Read 2559 times)