Source for VIZIO Backlight LEDs?

[budm]

Re: Source for VIZIO Backlight LEDs?

Great, I will order some. Still cannot find the pad assignment for the SAMSUNG LEDs yet, it has to be opposite from the LG ones.

[SLK001]

Re: Source for VIZIO Backlight LEDs?

Great, I will order some. Still cannot find the pad assignment for the SAMSUNG LEDs yet, it has to be opposite from the LG ones.

I emailed Guoxin Electronics Co., inquiring about just that. Here's what they sent me. As we surmised, the big pad is the CATHODE, just the opposite of the LG parts.

https://www.badcaps.net/forum/attach...1&d=1463713145

[jan2]

Re: Source for VIZIO Backlight LEDs?

I had a backlight problem too, so a friend of mine bought a bunch of different Samsung white LEDs from Digi-Key, 2385 package size. We replaced one blown-out LED with a SPMWH1228FD5WAQUVG, which was not ideal since the polarity was opposite to the strip, but my friend managed it anyway but cutting into the soldermask to make one pad bigger, and kapton tape to make the other pad smaller. Using a heated plate was much better than soldering. We then tested it and the LED was not as blue as the others. The Q part has a CCT color temperature of 5700K. So for the second blown-out LED, we used SPMWH1228FD5WAPUVG, and this P part has a CCT color temperature of 6500K, which is the coolest in the whole SPMWH1228FD series. We put the TV back together and even the 6500K part was not blue enough. It has a green tinge to it. I'm not bothered by it, since I just wanted a working TV, but if another LED turns bad in the future, I'd get one that has a higher color temperature than 6500K, and the opposite polarity, of course. The LEDs cost $0.092 each. My friend got 10 each of 5 different kinds, so around $4.50 total. So technically, it cost about 18 cents in parts to fix the TV, though I did use some super glue on the diffuser, and sticky tape to adhere the strips, and tiny amount of Kapton tape and solder. The correct LED's, looking on eBay, seem to be $9.49 for one, and have a color temperature of 15000-20000K.

[jan2]

Re: Source for VIZIO Backlight LEDs?

Meant $9.49 for one lot of 100.