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Hello, I'm Shahid. Sorry to hear that you're having trouble with this but I'll do my best to help. Please reply back when you're ready to proceed.Thank you.
I understand, so only the power supply board replaced in TV, correct?
2-5 power light flashing is an error code that indicates panel volts failure, this kind of problem occurs if either t-con board isn't getting 12V supply from power board or t-con board itself has got internal failure.
T-con board is located at lower middle of rear of TV and two flat ribbon cables from t-con board go inside the screen.
We need to check 12V at t-con board with multimeter while turning TV power On. If 12V is available even for a second then replace t-con board in TV to resolve the problem.
Please note that replacement t-con board should be identical to old t-con board found in TV as different version/ part number t-con board will not work. I hope these info will help. If you have any additional questions, feel free to ask. If you're satisfied, please rate me a 5-star at the top of your page. Thank you.
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