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LCD TVs - LED

Samsung led UN46FH5005G protect the LEDs

ergoflo13
ergoflo13
ergoflo13
124
hace 5 años
hace 5 años
Hi, it turns out that I replaced the LED that burned completely. I get a mess as I under the voltage of 143v to 120 someone is a little handy Cheers diagram: https://www.ksp-electronics.com/product_files/e52265108325dab81ab318b51c5c83a1 source model: L46GF_DDY SEC CODE: BN44-00667A
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ergoflo13
ergoflo13
ergoflo13
124
hace 5 años

https://www.youtube.com/watch?v=SO-qXVgW09I

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gilar
gilar
gilar
6.594
hace 5 años
hace 5 años
In the image enclosed in red, I show a pair of resistors, in parallel we would obtain a value of 1.95 Ohms, so if you want to lower the voltage you will have to place a resistance below this value and and that pair of resistors remove it from the card, it is all ...Cheers See, from where it takes reference of gnd Watch Victor
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Victor E
Victor E
Victor E
65.783
hace 5 años

I asked, where are those resistances in the circuit above? in the circuit that the friend posted.

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gilar
gilar
gilar
6.594
hace 5 años

They are taken from an image of the power source, the circuit that the pole went up, is applicable, this time as I provide all the source and controller data it is faster that your question can be solved

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Victor E
Victor E
Victor E
65.783
hace 5 años

Ok, greetings

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seekude
seekude
seekude
2.085
hace 5 años

In the circuit above it is just R16, pin 8. As the suggestion I gave to the question.

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Victor E
Victor E
Victor E
65.783
hace 5 años

It seems that he moved, because he does not answer or value the answers.

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ergoflo13
ergoflo13
ergoflo13
124
hace 5 años

Thank you I was working at home, sorry for the delay ,, Thanks for sharing the solution I will test with resistance under R16 .... Thank you very much

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seekude
seekude
seekude
2.085
hace 5 años
hace 5 años
Page 11 of the FAN7340 datasheet: Increase the value of R16, pin 8.
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ergoflo13
ergoflo13
ergoflo13
124
hace 5 años

Ok i'm going to test
Cheers

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ergoflo13
ergoflo13
ergoflo13
124
hace 5 años

Friends change all the LED strips
Solve the resistors by cold welding.
3.9 ohm by x2: 1.95 ohm: result: 108volts ok
122 with the LED tester
I'm good
thanks

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