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If you have replaced the main board and power supply board and are still getting a uniform blue screen on your Samsung LED TV, it could indicate one of the following issues:
T-Con Board: The T-Con board, or Timing Control Board, is responsible for managing the flow of video data from the main board to the LCD panel. If the T-Con board is damaged or not functioning properly, it can result in a blue screen.
Backlight Inverter: The backlight inverter is responsible for powering the backlight of the TV. If the backlight inverter is not working properly, it can result in a uniform blue screen.
LCD Panel: The LCD panel could be damaged or have developed a problem, causing the uniform blue screen.
Signal Cable: The cable connecting the main board to the T-Con board or the LCD panel could be damaged, causing a lack of signal and a blue screen.
It's best to consult with a professional repair technician or the manufacturer for further diagnosis and repair. They will be able to determine the exact cause of the issue and recommend the best course of action.
This problem is related to the mainboard and should be replaced. You can try to heat up the microprocessor with a heat gun though best solution is to replace mainboard. Part number is EBU60864321.
The led driver AND the T-con board are bad. If you could see a picture with the flashlight then the T-con board would be good. It is not. The led driver can be on the main board or the power supply board. You can get these parts from here: TV Parts Universal TV Stands DLP Chips ShopJimmy
Take the screen off connect power and watch LEDs if any don't flash its LEDs only needed to change faulty strip if they all flash its probably t con boards.
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://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.
The t-con board controls the picture. To test it shine a flash light on the screen abd see if you can see an image when the TV is on. If you do then the T-con board is OK. Look at the back light ballast board (sometimes is part of the power supply board) If you see no movement or a dim picture with the flash light, then the T-con board is gone. You can get parts here: TV Parts Universal TV Stands DLP Chips ShopJimmy
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electro-medical.blogspot.com/ http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Hi, checking user manual there's no soft reset option so maybe the main board is faulty too, usually when there's a damage by lighting in power supply this also reaches the main board since they aren't electrically isolated.
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