juanjuan

21

hace 6 años

Hi.
Did you measure the tensions of the source ????

vallin401

1.863

hace 6 años

Start by checking that the LED backlight is correct, if that is correct, check the power supply.

latora

294

hace 6 años

Thanks for responding. I measured voltages at the source and I have all the correct voltages. I had to replace 4 burned leds. The TV started with low brightness but when increasing this together with the contrast and the backlight the fault returns. Any suggestions'
Thanks and regards

vallin401

1.863

hace 6 años

check again the led almost certainly have some more annoyed

latora

294

hace 6 años

This is how you say there are some LEDs burned, what I need to know is how to lower the voltage coming from the board to the strips, but I don't know for sure what resistors I should replace. I leave the front and back image of the output to the LEDs to see if they can help me.
Thanks and regards

vallin401

1.863

hace 6 años

test without putting resistance at the moment, when you have the LED strips repaired and the TV turn on enter the menu and in the backlight straw 25% you will see that it looks the same and with that the LEDs do not work at the top of brightness In case I don't leave you we'll put the resistance

vallin401

1.863

hace 6 años

It is normal for the fault to return since we always have some more touched but we do not see it until we repair those that are really wrong and we put them to work I have had to open them two and up to three times to find everyone in some cases and in some others I left them bad soldiers and they gave me a mistake for it soon after you finish it let it work to see where the thing is going and if the work is really finished

latora

294

hace 6 años

As you say, I opened it and replaced another burned led and it was working, so far the customer did not claim, thank you very much

latora

294

hace 6 años

As you made a comment I can not consider it solved, I think you should propose your comment as a solution