Tv has no picture but does have sound. Did the flashlight test where turn tv on push menu and shine flashlight on tv to see the menu. I see the menu. I have narrowed the parts down to a tcon board and the LED driver. Just trying to figure out what one or both are needed to fix the picture. Doing this myself. Just want to know what part needs to be fixed. Thank you very much.
Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
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