Re: How to diagnose whether a TV LED is bad (without using an LED tester)?

I'll answer my own question. No 3528 may not have the same characteristics. Only the size is the same but they can go from 2V to 3.3V, may be more, I didn't check. The current can be from 20mA to 200mA. Again, I didn't investigate more.
So, yeah, we'll really need to find out which led they used, not only the size.

Re: How to diagnose whether a TV LED is bad (without using an LED tester)?

Thank you for the reply.
I dug some more information about the led and on its datasheet, they gave certain temperature for reflow and for 10seconds. I tried a lower temperature for about 4 seconds and now that led really died.
I decided to shorten it to check and the tv works but adding the darker spot I know that it is giving work to the rest of the leds.
Do 3528 leds all have the same characteristics? There is an old cracked screen tv for parts I left in the basement. It's pretty light...

Re: How to diagnose whether a TV LED is bad (without using an LED tester)?

I'm not sure about regular power supply but I have a desktop led lamp. I used its 16V power supply to test each strip of 6 leds of a 40 inch rca tv. They give dim lights. I guess it's dim because it should be around 6x3 = 18V > 16V. But still I managed to find out that one strip does not light up like the rest.
If I had a regular 18V charger, I would not be afraid to try it.

When the strips are joined together and put back on the tv, all the leds, including those on the supposed to be...

Re: RCA 55" LED55G55R120Q, led driver comes up and shuts right down

So, in the, you have no clues why it didn't work, and why it did work?
I'm still on the part where why it doesn't work.