Samsung UN40D6400 led problem

[Diah]

Re: Samsung UN40D6400 led problem

change yours metter on diode beep lol

[dick_barton]

Re: Samsung UN40D6400 led problem

I don't know if the leds could be stripped of this unit to repair your set. Each operates at 6V.

http://www.iccfl.com/product_info.php?products_id=21544

[Malachi]

Re: Samsung UN40D6400 led problem

I don't know if the leds could be stripped of this unit to repair your set. Each operates at 6V.

http://www.iccfl.com/product_info.php?products_id=21544

Is there in interchangeable led strip I could get or am I stuck with one with the same exact number?
I'm telling you guys, I don't have the skill to change these little LEDs.

[Diah]

Re: Samsung UN40D6400 led problem

I don't know if the leds could be stripped of this unit to repair your set. Each operates at 6V.

http://www.iccfl.com/product_info.php?products_id=21544

this is not what he have on this tv.

[Diah]

Re: Samsung UN40D6400 led problem

Is there in interchangeable led strip I could get or am I stuck with one with the same exact number?
I'm telling you guys, I don't have the skill to change these little LEDs.

you need to trust your self, if yours hand soldering iron had the solder head 0.5 or 1.0 mm you can do it easly.. believe me,, i did it and no way of mistake even you exchange all the 72 leds

[Malachi]

Re: Samsung UN40D6400 led problem

change yours metter on diode beep lol

When I do that, they don't beep.
I think I'm done with this TV. Time to scrap it. Thanks for all the help guys.

[Diah]

Re: Samsung UN40D6400 led problem

your choice, but when no beep it show you the residences of the led if its below 700 it mean leaks.

[Malachi]

Re: Samsung UN40D6400 led problem

None of them beep so that means they are all bad? But we know that only 18 out of 72 don't light.

[ReeceyBurger123]

Re: Samsung UN40D6400 led problem

Come on Diah you should know that they shouldn't beep if so that means they are shorted. Normally test them and see which one does not light. Reverse bias your meter leads in diode mode and test the Leds see if any do not light.

[Malachi]

Re: Samsung UN40D6400 led problem

Come on Diah you should know that they shouldn't beep if so that means they are shorted. Normally test them and see which one does not light. Reverse bias your meter leads in diode mode and test the Leds see if any do not light.

I done even know what that means. Lol.
I do have a pc psu rigged up like you did in your video. Can I use the. 5v on each led? One lead on one side and one on the other?

[budm]

Re: Samsung UN40D6400 led problem

Come on Diah you should know that they shouldn't beep if so that means they are shorted. Normally test them and see which one does not light. Reverse bias your meter leads in diode mode and test the Leds see if any do not light.

His meter cannot light up LEDs that are in series internally with Vf of 6V, it probably does not put out enough Voltage to bias on the two 3V Vf LEDs connected in series.
He can put two white LEDs in series and find out if his meter is capable or not.
Internally the LED also has protection diode connected in antiparallel fashion.