First time caller, long time listener! So, here's an ADC with a LED backlight issue that I got for cheap recently. It uses an LM240WU6-SDA1 LCD from LG.

Symptom:
Upon first powering on, backlight flashes on once for such a short duration that it's almost undetectable, but it does happen. After that, the display is dark. Unplugging/replugging the displayport connector does not cause the flash to reoccur, but cycling the power to the display does.

What I've done:
The LCD itself displays fine, determined via a flashlight test.
Visually inspected...

Re: New Members - please post your introductions here

Hello! I'm a first time caller, long time listener (Get it, I'm old because I remember radio!) I'm a lifetime tinkerer and I can't pass up a chance to get something on the cheap and repair it myself.