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Help with LED backlight from TV

Discussion in 'LEDs and Optoelectronics' started by saberwolf617, May 17, 2017.

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  1. saberwolf617

    saberwolf617

    2
    0
    May 17, 2017
    Hello Everyone!!

    I have been trying to figure out how to power one and/or two LED strips from a TV that had a cracked screen. I have a couple of projects in mind but my first obstacle is to get the LEDs to turn on. Tried looking through a couple pages off google which led me to believe that I might be jumping in to this pool at the deep end without knowing how to swim. So I was hoping one of these forums might help me figure it out or at least point me in the direction of some literature that would help me figure it out.

    [​IMG]
    Ok so here is a picture of the two LED strips I pulled out of the TV (BN96-36234A LED Strips). They have 5 LEDs per strip and what I want to do is figure out how to power each side separately and how to power them both together. I also have all the components from the TV's which I was hoping to use to build a power source. The problem I ran in to was I was hoping to find a Voltage/Amperage rating for them that I could then use to find/build a power source but instead all I could find was that it was not as simple as that and one thread I found said that controlling the Voltage might not be enough and could burn out the strip.

    So my question is how do I determine how much power the strips need, what do I need to buy/build to supply the power, and what is the difference between one strip and two strips? Finally how far over my head am I trying to take a project on like this?

    Thank you guys for taking the time to read this!
    ~saberwolf617
     
  2. 73's de Edd

    73's de Edd

    3,254
    1,364
    Aug 21, 2015
    Sir saberwolf617 . . . . .
    Is it still possible to connect the LED strips to the old tv to get it to light them up, to then be able to take voltage and current measurements in order to determine their NORMAL operating parameters ?
    DON'T want to overtax them in the eventual circuitry used / involved in driving them.

    73's de Edd
     
    saberwolf617 likes this.
  3. saberwolf617

    saberwolf617

    2
    0
    May 17, 2017
    That will depend on if the backlight will activate with everything else unplugged. When I was moving I stripped the TV's down to their parts and trashed the cases and cracked screens because they were extra weight but I should be able to set everything else back up. I'll give it a shot and get back to you.
     
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