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Panasonic gt30 fbr's

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Offline gaz907

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Panasonic gt30 fbr's
« on: 10 February 2015, 02:13:28 PM »

Was the fluctuating brightness issue fixed on the pro modes with a firmware update on the 50"gt30, have been offered a good one with little use for a good price, just need to make sure its free of it now, not bothered about normal or dynamic mode, 3d free also ?
Thanks

Offline SETEM

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Re: Panasonic gt30 fbr's
« Reply #1 on: 10 February 2015, 05:11:56 PM »
I don't know if it's relevant, but I've never seen any abrupt brightness fluctuations on my old 50" G30, apart from this one time very mildly during a scene in Iron Man 2 or something. But honestly, never saw it before and never seen it since.

The overall luminance does actually fluctuate on all PDP's and CRT's though, because of the ABL, so it is always possible to provoke it into happening using a PC and some Windows windows ::) Apart form that, though, it's not noticeable on my old 50G30. At least not in [Pro] modes, which is what I used 90 % of the time and it's still set to [Pro] modes 90 % now. A crackin' TV :)  (Edit: It has over 4700 hours on it now, so it has been used quite a bit. Can't say I've noticed any detrimental effects on the image!)

(My older G20, now that had both floating blacks and sometimes also abrupt "brightness" changes, which could be a PITA during some content. Otherwise a great TV - The G30 was like the G20 only free of those issues!)

IIRC, this was an issue for both the G30 and the GT30 with an early firmware, and I think they got the same fix... I think I updated mine more or less right after I got it.
« Last Edit: 10 February 2015, 05:13:54 PM by SETEM »
Panasonic TX-P55VT60Y, PS4, PS3, X360, Wii, Pioneer VSX-421, Sony SS-FCR4000 5.0, Yamaha YST-FSW100.
(Panasonic TX-P50G30Y, Pioneer PDP-LX5090, Panasonic TX-P42ST60Y)

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Offline gaz907

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Re: Panasonic gt30 fbr's
« Reply #2 on: 10 February 2015, 06:52:16 PM »
Thanks for the info mate, I did have the G30 myself but that had the FBR's on every mode except the pro modes, although it was only noticeable in THX mode with Casino Royale and Inception, so if the GT behaves like that I'll be a happy bunny as I used the pro modes on my G30. Any other issues I should check for on the 50gt30 ? I'm paying 450.00 for it and it has 5 pairs of glasses, does have 2 years Panasonic warranty left but its non transferable.

Offline SETEM

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Re: Panasonic gt30 fbr's
« Reply #3 on: 11 February 2015, 03:31:58 PM »
Well, the [Pro] modes are better, anyway, since you can choose a darker gamma preset, and if you have any really obvious tint to the image you can fix it somewhat using the WB menu without going into the service menu :P

Any other issues I should check for on the 50gt30 ? I'm paying 450.00 for it and it has 5 pairs of glasses, does have 2 years Panasonic warranty left but its non transferable.
No, only one thing that I can think of... Obviously uniformity should be checked anyway, but the 30's had a thing with "green blobs" being a common issue for quite a few users (common as a complaint on forums anyway, let's not blow it out of proportion!). Basically areas with obvious discolouration compared to the rest of the screen; a uniformity issue. And uniformity issues are common enough across all brands and tech's. One (seemingly good) way of checking for these green blobs (and other uniformity issues) is to display a scene from the Pirates of The Caribbean movie where Jack Sparrow dies or whatevee and he is trapped in this white desert - particularly when the stones come alive/turn into crabs and the camera does a nice even pan across the white-ish desert. I think even minor uniformity imperfections would show up on that pan, so if you do check using that take it as an indicator of where on the screen any issues are likely to be. Then you can see if it turns up anywhere else...

I've seen slight "imperfections" on both my old G30, my old LX5090 KURO and my VT60 during THAT pan which have definitely not been visible during anything else, but it can serve as a sort of tool for more quickly locating issues, and especially any "green blobs", so don't panic if you see some imperfections during that pan! :P You'll definitely need to check other things afterwards anyway.

That scene managed to reveal that my old 50G30 had a slight "green blob". I wouldn't call it a "blob" since the shape of it wasn't clearly visible or anything, however checked with this scene, it seemed to lessen with time. It was already so faint when the set was new that it was not an issue anyway, but that scene managed to show it and I cannot remember ever seeing it anywhere else, neither in games nor in movies ;) Just so you get the idea.

AV forums can often blow things out of proportion. Just because someone's TV has a slight uniformity imperfection which seems to be a little greenish, that doesn't mean that this someone has ended up with a TV which has the dreaded "green blobs". No display is perfect, lol, but forums can make people panic even if there no issue with their set other than some slight imperfections... I can understand why, though.

Just be aware that that was a "hot topic" with the 30-series, though. Should be fine, especially if you can't see anything when you give it a quick check :)

(PS: I hate posting using the phone... Geez, it can be a PITA! :P)
« Last Edit: 11 February 2015, 03:37:54 PM by SETEM »
Panasonic TX-P55VT60Y, PS4, PS3, X360, Wii, Pioneer VSX-421, Sony SS-FCR4000 5.0, Yamaha YST-FSW100.
(Panasonic TX-P50G30Y, Pioneer PDP-LX5090, Panasonic TX-P42ST60Y)

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Offline gaz907

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Re: Panasonic gt30 fbr's
« Reply #4 on: 11 February 2015, 04:53:16 PM »
Thanks again, I know the scene your referring too, all the crabs look like pebbles and then move the ship. Will check it out. My G30 seemed to have a slight green blob after about 18 months, couldn't notice it though unless I ran slides. The 50 series and 60 series also had some issues with green and magenta tinges, ex display vt65 I went for was far worse at home, green in the middle and red both sides, then went to see a 50"gt60 that was even worse. The guy with the GT30 has sent me some video footage of it running some scenes I needed to check, can't ask more than that and means its worth the journey.
Thanks again, its been much appreciated.

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Offline SETEM

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Re: Panasonic gt30 fbr's
« Reply #5 on: 11 February 2015, 05:32:24 PM »
Yep, that's the scene. No problem :)

Good luck ;)
Panasonic TX-P55VT60Y, PS4, PS3, X360, Wii, Pioneer VSX-421, Sony SS-FCR4000 5.0, Yamaha YST-FSW100.
(Panasonic TX-P50G30Y, Pioneer PDP-LX5090, Panasonic TX-P42ST60Y)

Offline gaz907

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Re: Panasonic gt30 fbr's
« Reply #6 on: 13 February 2015, 02:36:45 PM »
Yep, that's the scene. No problem :)

Good luck ;)
Hi Mate, can you have a quick look at this video and see what you think about this 50gt30.

https://www.avforums.com/threads/panasonic-50gt30-plasma.1938690/#post-21719457
The video is near the bottom, post 19 microsoft one drive link.

Offline SETEM

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Re: Panasonic gt30 fbr's
« Reply #7 on: 13 February 2015, 06:01:34 PM »
Yep, that's the scene. No problem :)

Good luck ;)

Hi Mate, can you have a quick look at this video and see what you think about this 50gt30.

https://www.avforums.com/threads/panasonic-50gt30-plasma.1938690/#post-21719457
The video is near the bottom, post 19 microsoft one drive link.
Hi, m8, I downloaded the video to my phone and looked at it, but it's not exactly that part of the scene I meant. Almost, but not quite :P

Here is the clip I meant, found it on YouTube :)

(The clip in the video you linked me might still be good for locating issues, though, IDK...)

From what I could tell, it looked ok to me, but it's not really possible to conclude much from a video like that, since there's no telling in what way and how much the camera affects the capture. (And even if the camera could be trusted, there would still be no way for me to tell if what I'm seeing is close to 100 % accurate, since none of my displays are calibrated :-[ )

I'll take a look with my PC monitor too, when I get the chance, but nobody can guarantee you anything based on videos or pictures of a display captured with a camera, unless the cameraman was something like a professional photographer or something who really knew what he was doing :P You really need to see it in person to know how it performs... :)
Panasonic TX-P55VT60Y, PS4, PS3, X360, Wii, Pioneer VSX-421, Sony SS-FCR4000 5.0, Yamaha YST-FSW100.
(Panasonic TX-P50G30Y, Pioneer PDP-LX5090, Panasonic TX-P42ST60Y)

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Offline gaz907

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Re: Panasonic gt30 fbr's
« Reply #8 on: 13 February 2015, 06:10:02 PM »
Yep, that's the scene. No problem :)

Good luck ;)

Hi Mate, can you have a quick look at this video and see what you think about this 50gt30.

https://www.avforums.com/threads/panasonic-50gt30-plasma.1938690/#post-21719457
The video is near the bottom, post 19 microsoft one drive link.
Hi, m8, I downloaded the video to my phone and looked at it, but it's not exactly that part of the scene I meant. Almost, but not quite :P

Here is the clip I meant, found it on YouTube :)
http://youtu.be/nHv-mcvImAQ
(The clip in the video you linked me might still be good for locating issues, though, IDK...)

From what I could tell, it looked ok to me, but it's not really possible to conclude much from a video like that, since there's no telling in what way and how much the camera affects the capture. (And even if the camera could be trusted, there would still be no way for me to tell if what I'm seeing is close to 100 % accurate, since none of my displays are calibrated :-[ )

I'll take a look with my PC monitor too, when I get the chance, but nobody can guarantee you anything based on videos or pictures of a display captured with a camera, unless the cameraman was something like a professional photographer or something who really knew what he was doing :P You really need to see it in person to know how it performs... :)

Thanks for looking, its not the best video and I wouldn't rely on anyone's opinion, I've been looking a few months and keep finding one and it either sells or has an issue. TV looks ok, there was some blur evident but that's down to the ipad capture, he did post some photo's in his first post. I might take the risk but its a 200 mile round trip maybe more.
Thanks mate.

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Offline SETEM

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Re: Panasonic gt30 fbr's
« Reply #9 on: 14 February 2015, 07:53:06 PM »
No problem :)

I had a look at the clip via my PC, and for what it's worth at least I couldn't spot any uniformity issues. It became even clearer using a bigger screen, though, that assessing a display in this way isn't very good...

Good luck, m8, hope it works out :nod:
Panasonic TX-P55VT60Y, PS4, PS3, X360, Wii, Pioneer VSX-421, Sony SS-FCR4000 5.0, Yamaha YST-FSW100.
(Panasonic TX-P50G30Y, Pioneer PDP-LX5090, Panasonic TX-P42ST60Y)