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LCD TVs - LED
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tv philips model 39PFG4109 / 77 Dark screen with sound
hace 5 años
hace 5 años
I found that the problem was in the LED strip, now the new problem is that this TV burns the LEDs on the screen, I had read in a post that the source could be modified so that it delivers less current, but I can't find that source and less those resistances to be cut. I need help.
hace 5 años
Here I leave the post I followed to repair the TV: https://www.yoreparo.com/es/tv/televisores/lcd/led/preguntas/1591017/backlight-philips-39pfg4109
if any technician understands the image it would be helpful
hace 5 años
Yes, I found your video too: https://youtu.be/9jEuuRpG4mM
but it didn't help me since my model is 32 "and the source does not have the same resistance, the model is: tv philips 32PHG4109 / 77F
I already changed the LEDs burned by new strips, the problem is that since I did not find the resistance to lower the voltage drop in the LEDs, they would burn in a few months and I would have to buy new LEDs
2.085
hace 5 años
The video is not mine, but in the post title it says 39 "and PFG series. In the source you have exactly the same driver, nothing else changes the nomenclature, the return MOSFET is the Q8101 and the source gnd resistors are the R8123, R8124, R8125, R8126, take out the first and last and measure.
hace 5 años
I took out the two resistors, measured and gave me: 18.3v
Thanks for everything crack, you helped me.
hace 5 años
hace 5 años
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