I've been lurking the thread like a ninja since I ordered my 50PA5500. But now I'm here to share my experience.
My set's blacks out-of-box (which means, out of box and tuned
to cinema/expert) were in my opinion so-so, not bad during the day or with a few lights on but not really great in a dim-lit room or dark room, being a bit too light when roughly compared by memory to a Panasonic G30 in the same viewing conditions.
That said, after a couple of days of break-in slides, in between watching regular TV at night, I've opened the back and carefully tuned the RAMP_UP/DN and Vy pots with a plastic tool while watching a mix of greyscale bars and Blade Runner/Prometheus. The results have exceeded my expectations.
The tuning was by feel, carefully messing around those three pots until I ended up with roughly the same experience as brody76 in the previous post.
My RAMP_UP is between 10 and 11 o-clock, RAMP_DN is a hair higher (clockwise) than stock and Vy is a hair lower (counter-clockwise). This provides me with artifact and error free cold start-ups, though I am in Portugal and temperatures here are a bit more temperate for cold
start-ups, in autumn peak and ambient temperatures are still around 26ºC.
So I went from gray-ish LCD like blacks to inky deep sometimes-can't-tell-it's-on blacks, in a completely dark room. With a mostly black screen the blacks are a satisfying Panasonic grade.
IR also seems improved. Before I could easily spot retention when fiddling with menus, and now I can vaguely spot anamorphic bars only
on Apple TV's pitch black menu during a few seconds while the retention clears. It's quite amazing how fast it clears too.
For other ninjas here, I'll say it is worth it when you take the time to safely tune the pots. For a cheap set, it's now a cheap and very good set!
My only bash on LG is for not including analog audio out. Ended up buying a DAC as my living room's stereo is, well... Stereo.
Originally Posted by brody76
I'd like to ask you guys something regarding the black bars, and if it's possible to diminish it.
When black bars are displayed on a movie, when there is a bright scene the bars kinda suck up some luminosity and then when the movie goes back to a dark scene your black bars would look much brighter.
Ever noticed that ? Is there a way to diminish it or make it disappear ?
I've also noticed this with very dark scenes following bright scenes, but only on a dark room.
Personally it doesn't bother me much because it is very
subtle on my set, however I did try fiddling with settings but can't get them as dark as darker movie scenes. I didn't notice it as sucking up luminosity though it might be how the set handles absolute blacks or some kind of retention effect.Edited by cryze - 10/12/12 at 4:50am