Identifying backlight LED

[schmo]

Hi

i got a Blaupunkt 40/233I tv with a broken backlight.
I disassembled the tv and looked for bad caps but they are ok. The backlight connector delivers ~30V under load
So I disassembled the panel and found 2 broken leds on the led stripes.

Can you help me to find the correct package and correct values?

[diif]

Re: Identifying backlight LED

You need to measure the length and width of the LED to identify the package and determine if they are 3V or 6V.

https://www.ebay.co.uk/itm/BUSH-40-2...-/332097789746

[schmo]

Re: Identifying backlight LED

Hi

Thanks for your message

The led is 4mm x 3mm

There are 20 leds in series. So 30V / 20 = 1,5v?

Thanks for the link. There they are really expensive. I would like to buy them from my local electronics dealer.

Greetings

[budm]

Re: Identifying backlight LED

If the 20 White LED (3V LED) in series so the total Vf = 20 x 3V = 60V.
The 30V looks to be the feeding Voltage to boost converter circuit to drive the 20 series- connected LED.