What LED's to Buy To Replace Backlight LED's and What Solder with LED's

[Tarot Superstars]

Hello.

I changed the led strips on my Hitachi 32 inch.
The TV is now ok since I have already replaced any capacitors that needed replacing.

I have also bought a spare set of LED strips for the tv also.

I want to be able to replace singular LED's in the LED strips if I need to, but I am not sure what value LED package to buy from Ebay in the UK.

The LED strips I bought were:
Replacement Backlight Array LED Strip Bar For Hitachi 32HB6J61U 32HBT41U 32" TV

On ebay I have a choice of singular LED's with voltage and colour temperature:

Voltage choices: 3V, with temperature choices:
3000K
4000K
6500K

or 6V to 6.2V, Colour temperature 12000-16000K (cool white)

or 3V to 3.7V, 12000-15000K (cool white).

My Caliper measures the LED's at ~ 3.48mm x 2.63 mm.

There are most likely other choices, if I look more.

Also, I am new to SMD soldering and usually only used a normal soldering iron with leaded solder, though I have unleaded. I also have a hot air gun I haven't used.

My questions are:
1. What voltage and temperature rating of LED should I buy to match the ones in my Hitachi TV?
2.What type of solder should I use, soldering wire, or paste with the hot air?
3. Should I use an iron or hot air?

[Tarot Superstars]

Re: What LED's to Buy To Replace Backlight LED's

PS: They LED's look like this in the attachment.

[petehall347]

Re: What LED's to Buy To Replace Backlight LED's and What Solder with LED's

if you have new strips just use them and forget it . your time is better spent doing other stuff .
if you must go changing single ones first check the vf of a known good one with an led tester . you will need a heat plate to do it properly . maybe solder paste wil be needed . i dunno never bothered with it .. plenty of other things to take up my time .

[EazyBone]

Re: What LED's to Buy To Replace Backlight LED's and What Solder with LED's

Just buy something like this.

https://a.aliexpress.com/_mKHoTUa

I break the LED off first and reveals the pads then I put a little solderon each pad with solder on and head up the solder and pad, and can usually scrape off the original pad from the smd itself. Then clean it up and put a small amount of solder on each side with the iron. Spread evenly and then I use hot air gun to melt the solder again, with flux ofc and tweezers drop it onto the pad once the solder is liquid. Press into place and all good. Best way ive found.

[diif]

Re: What LED's to Buy To Replace Backlight LED's and What Solder with LED's

Get yourself a cheap hotplate from Ali if you want to do LED replacing. Less than 10£/10$
Place the LED strip on top, the LED is off in seconds, drop on the replacement LED and done.