Official Panasonic TC-PxxST60 Series thread - Page 458 - AVS Forum | Home Theater Discussions And Reviews
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post #13711 of 13721 Old 01-12-2017, 09:52 AM
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I believe I set it to limited RGB and did the same for my home theater PC. My HTPC outputs flashing bands appropriately from levels 17 to 234 so what ever I did it works :-)
The important thing is that the TV and the video source need to be set to the same standard.

Sometimes, I see dead pixels...
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post #13712 of 13721 Old 01-12-2017, 11:15 PM
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Originally Posted by Marc_G View Post
I believe I set it to limited RGB and did the same for my home theater PC. My HTPC outputs flashing bands appropriately from levels 17 to 234 so what ever I did it works :-)
The important thing is that the TV and the video source need to be set to the same standard.

Flashing bands from 17 to 234? Now you lost me
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post #13713 of 13721 Old 01-13-2017, 04:45 AM
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There are test patterns you can run that let you adjust brightness and contrast so that the dynamic range of the TV is used appropriately in displaying content. If you think of possible encoding of black levels as a scale from zero to 255, only 16 to 234 are typically used. So the test patterns include flashing bands encoded from 0 to 255, and we adjust things until 17-234 flash. 0-16 should stay black and above 234 stay white. If this isn't set properly you get black crush and other artifacts.

Sometimes, I see dead pixels...
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post #13714 of 13721 Old 01-13-2017, 05:01 AM
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Originally Posted by Marc_G View Post
There are test patterns you can run that let you adjust brightness and contrast so that the dynamic range of the TV is used appropriately in displaying content. If you think of possible encoding of black levels as a scale from zero to 255, only 16 to 234 are typically used. So the test patterns include flashing bands encoded from 0 to 255, and we adjust things until 17-234 flash. 0-16 should stay black and above 234 stay white. If this isn't set properly you get black crush and other artifacts.


Aaah ok that one I have used before on another set, thank you.
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post #13715 of 13721 Old 01-16-2017, 10:52 PM
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The vertical band is there to stay it seems. Hoped it was burn in at first but now I am pretty sure its not. I have been haunted by this damn vertical banding since I sold my Pioneer 507 plasma. I have tried 7 different LED screens and 3 OLED screens and they all had it. So I refered back to the only safe tech I know of : Plasma. But what do I get? Vertical effing banding............................
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post #13716 of 13721 Old 01-21-2017, 08:09 AM
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Originally Posted by wargod View Post
Is it normal for the P65ST60 to have these green pixels in it when looking at it close? If this not the norm, how can I correct this? These screen shots were taking while my xbox one S was updating for the first time.

http://imgur.com/fDrBqxx

http://imgur.com/8GzebDR
Is that an all black background? If it's all black then you should not have any dancing pixels. Make sure your brightness is set correctly for your source. Use the free disks out there like AVSHD709 or GCD. Set black to where the black clipping pattern 16 is invisible and 17 is visible. The key is to make sure 16 is invisible.
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post #13717 of 13721 Old 01-21-2017, 08:16 AM
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Originally Posted by Jaxione View Post
Hi!

Just bought a Panasonic ST60 in mint condition, however now I have noticed a vertical band on the right from the middle of the set. Didint bother to check for this before as I didnt think plasma suffered from vertical banding. I guess I have to live with it? Also there is line bleed, is that normal?


Br J
One way to check for line bleed is use the green movie trailers ratings screen pause it and look for the line bleed usually it's horizontal.Find them on the movie trailers from Blu-rays.
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post #13718 of 13721 Old 01-21-2017, 08:20 AM
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I get green pixels too, but I can actually see them from 10 feet away. It's usually there when it's first turn on and trying warm up. I think those are the sub pixels from the screenshots?
This is normal when first turning on the TV. It goes away right away. If you have the brightness on your set setup correctly then you should not see it in black bars for movies or a full black blackground. AVSHD709 or GCD calibration disk. Black clipping pattern, set Brightness so that 16 is invisible and not flashing, 17 is visible and flashing.
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post #13719 of 13721 Old 01-26-2017, 01:18 PM
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Don't adjust green cut. Leave your white balance controls at default. Use the mentioned patterns to adjust your brightness control.
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post #13720 of 13721 Unread Today, 02:46 PM
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Hi everyone,


I could use some help troubleshooting an issue on my 60ST60 where black levels in movie scenes suddenly go from deep black to sort of a washed-out gray, during low-light scenes like "people walking through caves or sewers." Often this looks sort of like flickering between the dark black the backgrounds should be, and a much grayer view. If I go frame by frame through those sequences, the changes occur matching what I see when watching the movie in real time.


It's distracting, and started right after I reconfigured my home theater... everything changed about my home theater setup all at once, except for the TV and it's settings. The TV & settings haven't changed a bit. But there's a new home theater PC (now a late model i5-6600 based machine with Win10, new versions of playback software, etc.), and a new AVR (Denon S720W).


Playing these same scenes of content WITH THE SAME SOFTWARE on my desktop PC doesn't show the "flickering." So, I have no reason to believe it relates to the content.


I tried sending the video to multiple different HDMI ports on the TV; they both showed the same gray-flicker phenomenon.


Based on this, my troubleshooting tree looks like this:
-Is it the content? No.
-Is it the TV itself? Almost certainly not.
-Is it the software? Apparently not.
-Does it relate to the new computer or new AVR?
---Almost certainly yes
-----What on the AVR could cause this? [Don't know, noting in menus suggests it, next step is to test without AVR in the loop]
-----If I rule out the AVR, what about the computer would cause this? Nothing much in the Intel graphics controls that relates to this to try to tweak.


Any ideas about what to do? I'll see about testing without the AVR; physically this may be easier said then done based on available cable lengths.


Mostly, what in a late model Intel driver package would cause this?


Marc

Sometimes, I see dead pixels...
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post #13721 of 13721 Unread Today, 03:10 PM
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Oh. Never mind.


It turns out that there was a contrast enhancement that was set to "enabled." I was unfamiliar with this control since it's not present for my slightly older computer's Intel graphics settings. Turned it off and the problem has gone away.


Thanks for listening...

Sometimes, I see dead pixels...
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