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lg 32ln5100 burns the led

ELECTRONICA CIENTIFICO

980

hace 6 años

Good morning friends greetings. lg 32ln5100 burns the led this I repaired it previously and it lasted 6 months and this time I repaired it and it lasted only 3dias again what I repaired hard a week. I am thinking maybe the LEDs that I put are not the right ones, what I do is take out the LEDs of any TV or birds I buy them just because they are led. My question is do you have to see the amps or how to see the amps of the LEDs? Maybe I am making the mistake of putting any LED and they are not of the same amp. or is there a way to solve this? maybe placing some resistance? I need help to solve this problem thanks infinitely. for your help '

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Victor E

65.783

hace 6 años

lg comes from 3 and 6 volts.You must place the corresponding one.Also you must always lower the source voltage when you change greetings LEDs

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ELECTRONICA CIENTIFICO

980

hace 6 años

VICTOR friend E.
How do I strain it? Thanks for your help. Regards.

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Victor E

65.783

hace 6 años

In the negative LED line, in the fet fet driver, increase the value of the source resistance of the mosfet.

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ELECTRONICA CIENTIFICO

980

hace 6 años

what value would the resistance be and how many watts?

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nicomena2015

9.501

hace 6 años

Hello colleague: you can not put any led q, take off any plate .... you must put the q, you have to take ... for that you must make a measurement to one of the original led of a strip and see if it is of 3v or 6v led ... you need a led tester ... I send you a very simple one q, it serves to measure with q, voltage works a led ... you only need a DC source between 12-25vcc an R 1k ohm and a digital voltmeter as it appears in the image ... besides the ld have a life time ... maybe you have to change the new strips ... greetings! https://ibb.co/BswR53Z

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ELECTRONICA CIENTIFICO

980

hace 6 años

friend nicomena2015
Do I have a car battery is it useful for me? emves de la fente de pc?
fatty greetings for the help.

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nicomena2015

9.501

hace 6 años

if it can be used if it is 12v to measure a single led ... but it has to respect the polarity of the voltages ... in the scheme, look where the positive goes and where the negative goes ... the R of 1kohm is connected to the positive of the battery and the positive of the led ... the negative of the battery goes to the negative of the led ... q, rare q, do not have any adjustable DC source between 1.2v and 30v ... it is necessary in an electronics workshop ...

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nicomena2015

9.501

hace 6 años

Be careful with the battery current ... although q, it's only 12v but the amperage is very high ... 65A ... and can burn or damage if there is a short between its + and - cables ... okay...

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ELECTRONICA CIENTIFICO

980

hace 6 años

Thank you friend Nomenomen2015

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Victor E

65.783

hace 6 años



hace 6 años

You can also use it in 110 volts, only the capacitor must be isolated for 200 volts. greetings

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ELECTRONICA CIENTIFICO

980

hace 6 años

great the led tester. friend Victo E
Is this tester used to test led strips or unit?

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Victor E

65.783

hace 6 años

It is used for a LED, a strip or all the strips together. On the tip you can add a voltmeter.

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dni20

1.120

hace 6 años

Hi Victor .... the LED tester regulates only the voltage consumed by a strip or an LED only?

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Victor E

65.783

hace 6 años

If you regulate alone, the key there is the 10k 4 watt resistance.

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ELECTRONICA CIENTIFICO

980

hace 6 años

friend Victor E.
That happens through a casguality. Does the 2 tips of the provador burn something or does an arc come out?
Another thing when investing the LEDs when testing and any risk?
Regards.

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Victor E

65.783

hace 6 años

If you join the two ends, the resistance of 10 k is simply overheated. I did not understand how to invert the LEDs, it is not an ohmmeter, it is a voltage source that supplants the LED driver source and allows you to find the bad LEDs.

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ELECTRONICA CIENTIFICO

980

hace 6 años

Thank you friend Victor E.
Regards.

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Victor E

65.783

hace 6 años

Do not forget to value.

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ELECTRONICA CIENTIFICO

980

hace 6 años

Yes thank you

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Dennis Flores

hace 6 años

If you do not have a led tester, feed power strip with series ammeter and parallel voltmeter and you see the consumption, normally the LEDs that have more damage, are about to be damaged, you must also ensure the strips with double sticks, this expires with the heating, Nowadays I have two options, change only the led purchased by royo on ebay and / or replace all the original led girdles, so I can give guarantee.

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ELECTRONICA CIENTIFICO

980

hace 6 años

Dennis Flores friend.
I never bought online but as maybe they already sell it in my country. And if so, how do I ask to buy?
how many volts are they and how many amps are those led by royo? Is it 2 pin? because once I bought I had something with 6 legs and
Install and burn immediately. Thanks for your help. I will consider what you tell me. regards...

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