I replaced the T-Con board. But still no picture on screen. Could it be the main board or do I need to replace the LED strips? I can't tell if the LEDs are working or not, but I did not see any lights on with back the off and TV on. Any help would be greatly appreciated!
In most of the case, the back lights LED strips have defective LED diode on it.
SOURCE: Samsung TV
If you see a picture with the flashlight you can rule out the T-Con board. It's working. So the led driver board is the problem. TV Parts Universal TV Stands DLP Chips ShopJimmy Go here for replacement parts.
SOURCE: LG 50la6970 no backlight i have sound and dark images!
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.
Hello Anas,
These failure could be a combination of the power supply and the main board failing.
I would suggest to replace both boards or if you are able to measure the voltages from the power supply and verify that the power supply is working, then you should only replace the main board.
Let me know if you require further assistance.
Search results for UN40H5203AFXZA
If you see an image with a flashlight the T con board and power supply board are good. The back light controller board is the culprit.
SOURCE: On my Hisense 50K23DG LED TV, I have sound but no picture.
Hi,
Hisense TV's usually use PCB Boards by Vestel and not Hisense themselves, have a look at: Vestel Help If the Boards in your Hisense match this Board/Part Number format at least you'll know what to search for, replacing the power supply will not help unless the process has been incorporated into the power supply and that is not known for certain yet
Good Hunting
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