I have a LN-R408D Samsung LCD flat screen TV, about 2 years old, that has sound but no picture. Took it to the repair shop and they can't seem to find out what is causing this problem. Any suggestions???
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If you have sound on the stations this is a problem in the display. Take bright flashlight and hold it against the screen. Look for an image around the edge of the flashlight. If you see an image then it's one of three problems;
1) The inverter board is bad. 2) The CCFT (cold cathode fluoresent light) are bad. 3) The power supply to the inverter board is bad. Someone knowledgeable in electronics can replace the bad part(s).