Sounds like the circuit board may need to be replaced. Mine did a similiar thing only my picture turned upside down, screen went blank yet had good voice. Samsung tech said the 2 circuit boards were bad and had to be replaced at a cost of $780 in parts plus labor. I bought a new LCD TV, not Samsung.
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Hi. It seems that the g2 voltage of the picture tube is too high, resulting in a white screen, often with white horizontal lines. The g2 (= second grid) voltage is derived from the flyback high voltage. The voltage divider is mostly integrated in the flyback trafo housing.(including the adjustment knobs). A failure in this divider may lead to this defect. The static you hear may come from sparking in the divider. The flyback trafo is soldered onto the main printed cirrcuit board. Sometimes, one of the pins sits loose in the soldering pads. Turn on the set and observe for any sparking around the entire flyback circuitry, and, or the flyback trafo itself The screen turns black after a while, as a too high beamcurrent is detected. The set disables the flyback. Stand-by blinks meaning that there is a fault condition. Be carefull with the high voltages. The flyback voltage is very high (20-30 Kilovolts !) and may be lethal !!
Check the connections on the flat cables to the screen. Be sure first to disconnect the power supply from the x and y sustain boards before you disconnect any of the flat cables.you will burn the cables from the stored energy in the power supply, also check cables on c boards at bottom of screen. If this does not fix probably bad panel.
it isnt worth it, your verticle diflection is out, that board is about 3-4 hundred, and you would probabily need a service center do it(messing with like 30000 volts)and they will probabily charge around 200
If the lines are thin and close together running horizontally, it may be the vertical driver, but that usually takes out the resistor and sometimes the diode in the B+ for the vert. Also you must replace the caps that caused the problem in the first place.