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LCD TVs - LED

Samsung TV model UN32F4000AG

maxi2246
hace 5 años
hace 5 años
1bf41088-05d5-40d0-b306-2fe1fff30677.jpg [175.02kb] 3b1bfa63-2aa7-440a-8e62-0cf8b5d86d1f.jpg [117.37kb] 9e22a1ba-da9f-4a31-8423-c9b7e1363801.jpg [182.75kb] 2839f9f2-1bd3-488b-a8e3-ee1ba555a0d1.jpg [121.10kb] 493343da-7160-49cb-88c1-41efecd274f6.jpg [161.94kb] c786ec3d-65fc-44fa-a8a6-9c579e209f7a.jpg [197.85kb] Good afternoon colleagues I get this Samsung TV model UN32F4000AG, with some LEDs burned, my question is how do I turn the voltage on the LEDs, and what part of the menu should I enter to lower the backlight?
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seekude
seekude
2.085
hace 5 años
hace 5 años
In the menu, you lower the backlight parameter, but the idea is to reduce it from the source so even if the client maximizes it again, it will already be reduced.
maxi2246
hace 5 años

And how would it be to reduce it from the source, do you have to remove some resistance, or add something?

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seekude
seekude
2.085
hace 5 años

Hi, are you technical world maxielectronics ?, If you can upload photos of the front back of the board, with details on the connector and backlight driver. And BN source model ...

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maxi2246
hace 5 años

Hello Seekunde if he himself, there load the images

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seekude
seekude
2.085
hace 5 años

Okay. You have to increase the value of R9110. Measure before and after the replacement, try increasing 1ohm, that is, you can use the same resistance and place the 1ohm in series, if it does not decrease, I will continue to increase.

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maxi2246
hace 5 años

great I just finished changing all the LEDs, I'm going to try that, and then I comment, thank you colleague

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maxi2246
hace 5 años

Hi Seekude, I finished changing all the new LEDs, assembled the TV I measured the voltages of the LEDs and marked 140, I put the R9110 in series one of 3.3 ohm, and low to 132v I am working correctly, thank you very much for your help , God bless you.

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