LG Plasma Panel tweaks for better blacks. - Page 6

Soon as I get a second pair of eyes and some help taking it off the wall, will follow with the results. Thanks.

this thread and the posts make me appreciate my Kuro 500m ever more

making me want a LG.
.003-.004 mll is damn good. first Kuro good.
as far as your kuro, yup.....but you did not pay LG prices.

I did! Since I can't talk about pricing, i'll give a range. $1000 to $1479

Totally agree. Couldn't be happier. Very much looking forward to the 60 inch version come Xmas time.

Don't know of pots related or not, but noticing white sporadic dots only on Comedy Central (Verizon FIOS Tampa area) and tried to see if could remove while tweaking like mad but to no avail. Could it be the source or voltage higher on that channel (forgive my non-tekie talk) or something?? I never noticed before the pots tweak so again hard to tell.
It's not a channel that I watch often, but does concern me if can cause some damage short or long term.

I'm at the point of no return, not that I want to anyways because the pics are awesome on my 60PZ950, but because I couldn't start from scratch to see If def a pots tweak related issue or not.

Nice! So adjusting VA provided more headroom for Set-Up?

Sorry, is there any news in the equivalent for 2011 Samsungs?

My TV measures .02 ftl after the change. Far from a Kuro killer, but still a respectable 1960 ANSI contrast ratio!

How do you measure that?

ChromaPure software and a Xrite display 3 meter...

I guess numbers don't lie, but 0.2 seems waaaaaaay off. Like Pre-mod levels of a bad set. I mean Chad B measured 0.0132 on a pk550 and I'm quite certain he didn't touch the pots.

My LG 50PK540 didn't have much room if any at all for adjustments. The Set Up POT was no where near maxed out and barely turning it clockwise produced major static noise on bright/full white areas. I'm using a HTPC as the source and contrast set to 100. Anyway, I might of gained a 'tad' darker blacks, but I wasn't unhappy with the blacks before. If I could have a choice of what to tweak with this display it would be the slight color shift in the low IRE otherwise everything else looks peachy to me.

Now too bad that there wasn't some adjustments like this to counter-act some reports of overly aggressive ABL a lot of people are complaining about. My first 50PK540 dimmed and brightened so noticeably bad that it also made the colors shift very bad. It also made text on this site blend into the background and nearly impossible to read (dimming). Luckily my second 50PK540 had more normal ABL and this wasn't an issue but I'm currently looking into getting a 60PV450 but all the complaining about the dimming has me too worried to take the plunge, especially with Sears' crappy return policy (14day/restocking fee). If Sams Club with their 90 day no questions return policy where selling the LG's like they where last year, I'd take the gamble. Is there any internal adjustments to counter-act some screens that have too aggressive ABL out of the box?

I was hoping for .01x, but the numbers are what they are. I'll post calibration reports once I dial in the gamma.

My set has 2000+ hours, so I might need to get back in and adjust more pots than the set up...

Are you sure that the units are ftL and not cd/m²?

Yes, .06 CD/m2

Little word of advice before attaching back panel back on after pots tweak...

Please make sure you have checked all sources i.e. cable/sat receiver, PS3/Xbox or any gaming, BluRay/DVD, and even 3D on Movie AND Gaming consoles. Also, TV menu, and quick menu along with every channel.

All may look swell (Little Rascals word ) when all of a sudden you'll notice some red pixels, lines, artifacts, etc., on a less frequently used source and you'll have to take off again to re-tweak.

The screws on mine may have worn just a bit thinking I was done without checking EVERY single source. Especially black ops 3D.

As bhazard and a few have posted, it does take a while and you have to be very patient.

Peace

Or you could just drill holes in the back panel where the POTs are and be able to make adjusts without removing the panel.

You really measured ANSI at 1960 with a .02 fL black? You actually measured the checkerboard (not a window, the checkerboard, which is 50% of screen area) at nearly 40 fL?

I had to readjust the pots. Was getting random white pixel misfires. Most noticeably on dark knight, seemed like source dependent. VY and Set_Down back to factory position and moved the set_up couple notches up. Blacks are light once again. *sigh*

Too funny!! Think warranty would be voided?? LOL

Sometimes maximum stability is better than maximum performance. I think I'm going to leave my brand new 60PV450 alone as it seems some people just have to wind up adjusting theirs back to default. My blacks are a little on the light side too on my brand new 60PV450, my PK540 was probably a tad darker but, I don't feel like going through the process just to waste the time to wind up putting it back (just like what happened with my PK540)



Nah... Warranty's all good! Just extra vent holes, they'll never know!

I did try for months just with the set up and set down but couldn't get the black level as I want, they where still grey..the problem was that everytime I try it to lower the set down there was a lot of crazy dancing pixels on a black screen, but now that I try this setting wow no dancing pixels and real deep black levels now I can see every single detail on the darkest parts of avatar.

"Va" full throttle clockwise

Vy full throttle counterclockwise

"Set_Up" clockwise

turn "Set_Dn" clockwise untill you get pixelmissfires. Turn a microamount counterclockwise untill you dont' get new pixelmissfires.

LG 60PK550 in 24p

I want to add that I did exactly the above setup but the Set_Up at full throttle clockwise

This doesn't really judge how beautiful the black levels looks in person,but you can get an idea.

If I understand the whole thing correctly you can adjust VA on the PSU board to provide more headroom for Set_Up (see #152 for example).

These are the exact settings I use with awesome results. The set down is the one that threw me for a loop a number of times. Not many here are using the 4 pot,s from what I can see, and sticking with just 2 with great results also, but I just went for Turrican4D's instructions since that seems to give more headroom for set_up.
AVATAR is the Goto movie for me...thanks HBO ONDEMAND, to really see the benefits of the tweak IMHO.