Hi. I have a Samsung LED 46" model #UN46EH5000FXZA, with no picture but has sound.I replaced the power supply board & T-Con board & still no picture but have sound. What can I do next??

It will be just one of the many strips that has failed.
i can't remember but think there are either 10 or 12 on that model.

The T-Con board is embedded in the main board and not in the power supply/LED Driver board.
The Main board part number should be BN94-09124C but I would suggest to do more research or call Samsung for more info.

did you change power supply? how many times does light flash (red) you didnt change the power supply did you use a vom on connections?

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Donal Deane MCSE,ASE,CPO

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...

SAMSUNG BN44-00497A PD46AVF_CSM PSLF860C04A POWER SUPPLY UNIT / LED BOARD https://www.abctay.com/wholesale-samsung-bn4400497a-pd46avfcsm-pslf860c04a-power-supply-unit-led-board-p-810.html

I had a Samsung TV with sound but no picture, All the controls also worked. The problem was the T-Con board. Make certain you get the right one, or it will not work.

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://electronicshelponline.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.

Hi Patrick,

have a close look at your LVDS cable and screen ribbons for signs of failure or heat damage, and you could try to pull a picture from an AV output in various formats to see if it's the screen itself is failing in some way,

regards

George

Hi Tony,
If the backlight is there and still there is no picture, what is left is the main board. But before that please see that the Tcon board is receiving necessary voltage from the main board. Please also check the power supply board for producing all the necessary voltages.
Good Luck.

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.