All you need is a LG service remote. Push In Start enter the codes 1126 or 0413 and you're in. From there, go to System 1 and you'll see "Dimming On". Just turn it off. There are other settings to help with this and I'll update this post when I get the time with full instructions.
For anyone...
I'm very interested in this, too. did you do any further testing? currently, I have it all set up on my CX and both my C1s and it works well. SNES and NES roms. Still, I'm uncertain about how much it can be pushed. is it capable of PSX and N64, or any later generations? I'll try some stuff and...
You ever try soaper powder/qauludes? I did once and like a dumbass drank beer on top of taking, I woke up laying in my backyard in the pouring rain, it knocked me out. I have not seen it around in many many years.