Lg 42ln5300 led strips replace

[crdz66]

Hello everyone.

I have a lg tv model 42ln5300 with black screen but with sound.

I noticed that the voltage going to led strips was too high according the specs.
So i decided to check the led strips and i find one led burn out(1 of the 9) and one full line led strips out (no lights).

So i bought two complete led strips (9 total each).
So far was good.
The problem start when i put everything back panels, boards,etc)

as soon turn on the tv i see shortly light from led strips and turn off and now is back black again.

My question guys is...
Do you recommend everytime replace the all led strips and no just some??????
This tv have 6 complete led strips and i replace just bad ones(2)


i'm process of learning from my mystakes.

[freakaftr8]

Re: Lg 42ln5300 led strips replace

Yes. Another LED on a strip was ready for failure. This has happened to me before. That's why when I get the LED array running, I leave it on for about an hour before I start reassembly. Just insurance that it's going to last.

[budm]

Re: Lg 42ln5300 led strips replace

Did you verify that all the LEDs are on before putting the LCD panel back together? I usually let it run like that for at least 15 minutes. You also need to very that all the SMD connectors on the LED strip do not have bad soldering works, those connector are know for bad connection.

[crdz66]

Re: Lg 42ln5300 led strips replace

ok guys thanks.