logo elektroda
logo elektroda
X
logo elektroda

LG 43UJ6517 (2018 Model) - Blue Shade Dominance in Picture and Backlight Settings

Telo 64446 31
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #31 21312075
    gusgao
    Level 1  
    Hello! I replaced the LED bars and they kept blinking and turning off. Replace the capacitor C205 from 27uF to 33uF with the same voltage or higher. (In my case I replaced 27uF x 160V with 33uF x 250V, a little bigger but it fit without any major problems). My resistors R804 and R808 are 1.2 ohms, I increased them both to 2.5 ohms x 2W. Resistors R828 and R829 are parallel to R804 and R808, I saw no need to change them. Now everything works perfectly. I hope this helps anyone who is interested. EAX66793301(1.6).


    Diagram with notes on replacing electronic components. Close-up of a circuit board with modified capacitors and resistors. Image of a circuit board with replaced capacitors and resistors.
  • ADVERTISEMENT

Topic summary

The discussion revolves around the LG 43UJ6517 television model, which exhibits a blue shade dominance in its picture quality, particularly on the left side. Users suggest that the issue is likely due to faulty LED backlight strips, which may need replacement. Several participants recommend checking the LED strips' performance after disassembly and adjusting the backlight settings to prevent excessive brightness. The conversation also touches on the importance of current control in the power supply and the potential need to change current control resistors to enhance LED longevity. The original LED strips are discussed in terms of quality, with a preference for Korean components over cheaper alternatives. Measurements of current and voltage adjustments are shared, indicating the complexity of the backlight system in this model.
Summary generated by the language model.
ADVERTISEMENT