No picture (audio works) Samsung UN60EH6000

@swampetx

there could be multiple reasons for that. Check your input sources first. Try all different sources (Coax, Composite, HDMI etc.) to rule out those as an issue As th1 already mentioned, the first check would be done with a flashlight. In a darkened room and teh TV on a station where you have sound, shine a flashlight beam at an angle against the screen. Check if you can see silhouettes etc. If so, it is possible that you have a bad power board or bad LED backlight strips. If not, then it is possible that your mainboard is not providing a signal for the power board to turn the backlight on. You would have to check the power board connectors for the voltage output. Lastly you want to check the T-con board and see if you get 12V on the fuse.. Your Samsung should turn the backlight on if your disconnect the cable from the power board to the main board. Let us know what you find. Of course, you can always post some images of your boards etc. with your question. That way we can see what you see. Use this guide iFixitでの質問に画像を追加する方法 for that.

Just for an idea about prices, these are the cost for replacement boards from where I buy my TV parts

T-con Board $120

Power supply $60

Main board $65

LED backlight strips $80