Smart tv LG 47 la6200 burning Led
Well, it was already disassembled and there was no LED burned, it was just an LED as a bad soldier since it did not give continuity to the circuit. Replace it with doubts and now I have it to the test. Do you think it is necessary to remove the resistance? I add that the measurement between LED + and LED- being on gives me 43.2v or near the 100v that the board says and since it has 54led of 3v that would give 162v. I don't know why my tension is so low and I hope it's not a complication in the future
Thank you now, I think I understand something. To remove the resistors you say would reach me with lifting or cutting one of the legs of the resistors of the series section that go in parallel? And the other question would be why is the variation in the voltage value (or current I don't know what it would be) that leads me to modify the circuit instead of replacing some component?
I opened the tv and found all the components detailed in the photo you attached. If I did not misunderstand the steps to follow would be to replace the burned LEDs, count them calculate the voltage by multiplying the amount of LED by 3v to measure if I have a voltage similar or lower than the count. On the other hand, measuring the current and comparing the voltage and current values as indicated on the plate that in my case says 100v 0.4A of the latter I am not sure if those values are obtained on the led legs + and - or so I read them on the pins that go to the other board. Finally sack r817, r818, r829yr830
I start by changing the burned LEDs while I wait for more indications or the confirmation of you. I don't want to screw up taking out resistances that aren't. The other question is the resistances that must be removed with the tip welder or with the heat gun like any smd component?
