Me and another forum user (JonJandran) are testing a really cool 7 inch WXGA LCD panel with some different controllers. The problem is he needs to power the backlight LED's to see the screen. There is also the possibility of just stripping the panel, but I'd like to try the safe route for testing first.

I have the actual diagram of the led circuit and LED specs. We just need to get the panel lit up via battery, DC adapter, etc. whatever will work. I'm just afraid of frying the LED's!

http://solomonchase.com/panel/LED_Backlight.pdf
http://solomonchase.com/panel/LED_Specs.pdf

Thank you all you electronics ninjas.

It says in the table that each bank of 8 LEDs require 27.44V @15ma. That’s about a 3.5V drop on each LED. I’d suggest just using two 12 DC @ 60ma power supplies connected in series. That should give 3V to each LED, enough not to overpower them. Or you might find a power supply out of an old printer with enough voltage.

DJ

That worked perfect. Thanks daz

I had a 30v printer power supply, but it only puts out 28.5v, so it worked perfect.

Testing will commence tomorrow.