Good afternoon my name is Fernando I am a technician, I have this TV mentioned, it does not turn on, Tests that make verify source and see that everything is correct, I disassemble the display and find 3 LEDs that do not work. The replacement with similar new LEDs of 28x35, 3V, I turn it on, makes a flash and verified that they were burned again. Question, the LEDs were damaged because they are not good, or should they be 6V ?. The power supply to the backligth by plate description is 147V, the calculation I do is 145/3 strips = 48V per strip, there are 2 strips of 13 LEDs and one of 12 LEDs, divided 48/12 = 4V 48V / 13 = 3.7V. I don't know what LED to replace and if the calculations and deductions are correct, thank you.

the LEDs work at 3.7v in addition to the voltage after verifying that they are of the same current, if they were damaged exactly the same it is because they were not equal, after you change them after lowering the supply voltage of the LEDs ... Regards.

68660406_737511136677771_5279257548363399168_n.jpg [80.36kb] 68913302_483763932458414_4741093176897437696_n.jpg [118.64kb] 69017623_509816009795829_2699557082075496448_n.jpg[86.98kb] [img] / js / ckeditor / plugins /attach/attach_25.png[/img[69644384_634161870320837_1888931964015083520_n.jpg[82.99kb] as in the photos you must place a resistance of 12 ohm by 3 watt on the return line of the LED bars