Official Samsung LNxxA750 Owners Thread - Page 10 - AVS Forum

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LCD Flat Panel Displays

darthsphinx's Avatar darthsphinx
01:26 PM Liked: 10
post #271 of 12494
05-12-2008 | Posts: 8
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Quote:
Originally Posted by caa100 View Post

Darthsphinx, what size is your set? Over in the 650 thread, they determined that there was only a fan in the 40", and that the default service menu settings had it disabled.

Yes I have the 40"
wouldn't turning off the fans be a bad thing?
Also I have mad clouding is there anyway to fix this or do I have to take it back for another.
Ready2Mosh's Avatar Ready2Mosh
02:01 PM Liked: 10
post #272 of 12494
05-12-2008 | Posts: 1,124
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Quote:
Originally Posted by darthsphinx View Post

Yes I have the 40"
wouldn't turning off the fans be a bad thing?
Also I have mad clouding is there anyway to fix this or do I have to take it back for another.


Get about 100-150 hours on the set then look for the clouding, if it hasn't gone away in that time it won't go away, same with flashlights.

Mosh~~
dms541's Avatar dms541
02:41 PM Liked: 10
post #273 of 12494
05-12-2008 | Posts: 134
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Quote:
Originally Posted by caa100 View Post

Spoke with Samsung Level 2 support:

1. The 750 is full-time 120hz. With AMP off, it repeats frames (5:5 for a 24P input).
2. The response time is 4ms, same as the 650
3. The processing is 10 bit

With regard to this last point, he told me "you gotta be careful what you read on the AVS Forums!"

Forgive my skepticism, but I'm more inclined to believe the block diagram in the service manual than a samsung tech. I know a lot of us have had them give us complete bs and try to sell it as facts.

I think the panel is 10-bit but the processor is 16-bit. If I'm wrong then so is the manual they give to their field techs.
jazzbass's Avatar jazzbass
02:51 PM Liked: 10
post #274 of 12494
05-12-2008 | Posts: 717
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From what I understand the processing is 14 or 16 bit but only 10 of it is allocated for picture processing. The rest is for the DLNA. I could be wrong.
chinonye's Avatar chinonye
03:31 PM Liked: 10
post #275 of 12494
05-12-2008 | Posts: 33
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Quote:
Originally Posted by spfhelmiii View Post

I have two questions; if anyone could answer them I'd be very grateful. Right now I'm deciding between the new Sammy 650/750, or the new Panasonic 800u plasma.

First, I've just heard that the Panasonic 800u doesn't support 1080p gaming except through an HDMI port. I have a Xbox 360, but I'm not sure if I got one of the newer versions of the Premium model (not Elite) that has an HDMI port; I will check this later. Can anyone tell me if the Sammy 650s or 750s support non-HDMI 1080p gaming (through the regular component cable)?

Second, I've heard complaints about the "halo" effect of the clear trim surrounding the TV. For some reason, I can't watch TVs in a completely dark room, I need to have some light. Is the halo issue most prominent in watching the TV when dark, or is it more of an issue when you have other light sources?

Thanks guys. I'm new to this forum, and amazed by all the commentary. It's been very helpful.

yes these sammys support 1080p over component, but i have been having problems with error message.. "mode not supported" on my ln52a750 when playing assassins creed over component at 1080p at 1080i it runs perfect. Other games run fine at 1080p over component. The halo issue is during dark room conditions and at certain angles. hope this helps.
fafner's Avatar fafner
03:36 PM Liked: 10
post #276 of 12494
05-12-2008 | Posts: 1,854
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Can owners of the 52" set comment on black levels compared to previous Samsung models and perhaps Sony XBR4,5,6,7,8 models?

Much appreciated.

fafner
Datacide's Avatar Datacide
04:03 PM Liked: 14
post #277 of 12494
05-12-2008 | Posts: 328
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Quote:
Originally Posted by dms541 View Post

Forgive my skepticism, but I'm more inclined to believe the block diagram in the service manual than a samsung tech. I know a lot of us have had them give us complete bs and try to sell it as facts.

I think the panel is 10-bit but the processor is 16-bit. If I'm wrong then so is the manual they give to their field techs.

+1! The processor in the 650 is 12-bit and the 750 shows as 16-bit...there is no 10-bit in the processors as far as I know for these TVs. (at least from the diagrams).

Also...I am pretty sure the VGA spec for the TV shows it running in 60Hz...so the claim of "Full Time" 120Hz is questionable. Also, other people spoke with Sammy and got different answers....so I am not sure I'd take all the tech advice as true.

It would be really nice to have a Q&A with the an engineer. I wonder if they ever do that?
olivenone's Avatar olivenone
05:17 PM Liked: 10
post #278 of 12494
05-12-2008 | Posts: 13
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The 750 displays the source's frequency before processing not after.
studdad's Avatar studdad
06:20 PM Liked: 10
post #279 of 12494
05-12-2008 | Posts: 6,647
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Quote:
Originally Posted by Lestat Phoenix View Post

Third 750, this one has horrible clouding and mura on dark backgrounds (I know its normal but it just sucks) also when I cut lets say a game on the black backround gets pillars on the side. Im just going to keep this one and hope for a firmware update for the pillaring (spelling)

Don't expect an update for Pillaring. What you might try is lowering your contrast. Pillaring is worst when contrast is over 85.
thewayacts92's Avatar thewayacts92
08:25 PM Liked: 24
post #280 of 12494
05-12-2008 | Posts: 228
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what's clouding and mura and amp? sorry, no idea. please help if you can.
studdad's Avatar studdad
08:37 PM Liked: 10
post #281 of 12494
05-12-2008 | Posts: 6,647
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Quote:
Originally Posted by thewayacts92 View Post

what's clouding and mura and amp? sorry, no idea. please help if you can.

AMP=Auto Motion Plus setting on the tv. For clouding and Mura, imagine the screen as the sky. Clouding is light areas on the tv that look like a cloud in the sky. Mura is just an overall white type haze over the screen, i.e. it looks more like "wispy" clouds as opposed to well defined individual clouds. Basically, an uneven screen without the blatant cloud shape. Flashlights are bright spot in the corners of the tv that look like a flashlight beam coming from that corner.
axmode's Avatar axmode
08:47 PM Liked: 10
post #282 of 12494
05-12-2008 | Posts: 1,980
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Quote:
Originally Posted by fafner View Post

Can owners of the 52" set comment on black levels compared to previous Samsung models and perhaps Sony XBR4,5,6,7,8 models?

Much appreciated.

fafner

How about those of us who own the future XBR 10/11/12...21/22?. Can we chime in?.
axmode's Avatar axmode
08:51 PM Liked: 10
post #283 of 12494
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Stud: If i were to get one, I am more set on the 750 vs the 650. I just like it better aesthetically and also like the sub-woofer feature as I do not use audio equipment. I don't know if the mura/purple haze is just limited to the 650 or not enough "nuts" own the 750 to be uber critical about them

Nevertheless, if it came down to putting up with halo (outside panel cosmetic misfortune) vs the in-panel un-uniformities which plague some 650s, I'd go with the former
studdad's Avatar studdad
09:11 PM Liked: 10
post #284 of 12494
05-12-2008 | Posts: 6,647
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Quote:
Originally Posted by axmode View Post

Stud: If i were to get one, I am more set on the 750 vs the 650. I just like it better aesthetically and also like the sub-woofer feature as I do not use audio equipment. I don't know if the mura/purple haze is just limited to the 650 or not enough "nuts" own the 750 to be uber critical about them

Nevertheless, if it came down to putting up with halo (outside panel cosmetic misfortune) vs the in-panel un-uniformities which plague some 650s, I'd go with the former

I agree, I would rather have the halo and a perfect panel than no halo and a cloudy panel. I have real nice sound system so the sub-woofer is a non-issue for me. I mount it on the wall, so the stand shape is a non-issue, and there is reports of clouding/mura on the 750 so I figure I would probably lose either way there. In any case, if the clouding/flashlights are bad, it would go back anyway. If I get a purple haze set, it will definately go back, and Samsung WILL be replacing it until there is Purple Haze no more. So that brings me back to the Halo. I figure I can get Samsung to admit the panel is defective if I get excessive clouds or purple haze, but not so sure about the halo. And I refuse to put tape on my brand new tv. So, to me, the 650 is a better option (oh, don't care about the internet stuff either, already have all I need with my PS3), but I realize that to others, the look of the 650 may not be acceptable.
caa100's Avatar caa100
09:17 PM Liked: 10
post #285 of 12494
05-12-2008 | Posts: 870
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Quote:
Originally Posted by dms541 View Post

Forgive my skepticism, but I'm more inclined to believe the block diagram in the service manual than a samsung tech. I know a lot of us have had them give us complete bs and try to sell it as facts.

I think the panel is 10-bit but the processor is 16-bit. If I'm wrong then so is the manual they give to their field techs.

This cracks me up because I got the exact same reaction when I posted a link to.......



...the block diagram.

No, No, No, they said. The 650 and 750 are the same......



Seriously, though, I agree. I asked him, "I'm talking about the processing, not the panel" and got a flip answer.

Also, he carefully avoided answering the question when I asked if the 650's and 750's were essentially the same. I don't think he was trying to hide anything -- I just dont think he had any idea.
caa100's Avatar caa100
09:39 PM Liked: 10
post #286 of 12494
05-12-2008 | Posts: 870
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Quote:
Originally Posted by Datacide View Post

+1! The processor in the 650 is 12-bit and the 750 shows as 16-bit...there is no 10-bit in the processors as far as I know for these TVs. (at least from the diagrams).

Also...I am pretty sure the VGA spec for the TV shows it running in 60Hz...so the claim of "Full Time" 120Hz is questionable. Also, other people spoke with Sammy and got different answers....so I am not sure I'd take all the tech advice as true.

It would be really nice to have a Q&A with the an engineer. I wonder if they ever do that?

But what possible reason would there be for the set to switch to 60hz to display the VGA input? Repeating a frame requires no image processing.
axmode's Avatar axmode
10:14 PM Liked: 10
post #287 of 12494
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Quote:
Originally Posted by studdad View Post

I agree, I would rather have the halo and a perfect panel than no halo and a cloudy panel. I have real nice sound system so the sub-woofer is a non-issue for me. I mount it on the wall, so the stand shape is a non-issue, and there is reports of clouding/mura on the 750 so I figure I would probably lose either way there. In any case, if the clouding/flashlights are bad, it would go back anyway. If I get a purple haze set, it will definately go back, and Samsung WILL be replacing it until there is Purple Haze no more. So that brings me back to the Halo. I figure I can get Samsung to admit the panel is defective if I get excessive clouds or purple haze, but not so sure about the halo. And I refuse to put tape on my brand new tv. So, to me, the 650 is a better option (oh, don't care about the internet stuff either, already have all I need with my PS3), but I realize that to others, the look of the 650 may not be acceptable.

1- You, snooty show off

2- If some of the 650s are mired by mura, then why not the 750s?. After all, they are the same panel, are they not?. They all emanate from the same assembly line, do they not?. I just think that there are less 750s floating around and less finicky owners dickering with the BL and contrast/brightness to enhance the mura. But then again, I could be wrong
kokobucks's Avatar kokobucks
10:24 PM Liked: 10
post #288 of 12494
05-12-2008 | Posts: 302
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Anyone with experience know if it is worth getting an extended warranty with a Samsung TV? I know consumer reports has gives Samsung a good reliablity rating, but I'm sure it is relative. I'll probably either get the tv from Big River or BB. Big River has an Samsung extended warranty and BB is their own.

If anyone owned a previous Samsung model, how did it treat you over time. I'm not one to buy a new TV ever year or two (for instance my current TV is 8 years old), though I have set my self up that I'll probably have to buy a new one in 3-4 years with the quickly changing technology. . .

Thanks
BoNg420's Avatar BoNg420
10:31 PM Liked: 10
post #289 of 12494
05-12-2008 | Posts: 162
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any difference in PQ

650 vs 750?
bisonium's Avatar bisonium
11:12 PM Liked: 10
post #290 of 12494
05-12-2008 | Posts: 1
Joined: May 2008
Quote:
Originally Posted by BoNg420 View Post

My TV hell...
3 Sharp 52d64u - banding all 3
1 Samsung 5271F - sound died in 3 days
1 Samsung 5271F - mutliple picture problems
3 Samsung 52a650 - current -dead pixel/purple tint

Bong, either you've been hitting the pipe too hard or TV just aint for you bro. Stick to sock puppet shows and fish tanks man.
metal83's Avatar metal83
11:20 PM Liked: 10
post #291 of 12494
05-12-2008 | Posts: 2,300
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Quote:
Originally Posted by axmode View Post

1- You, snooty show off

2- If some of the 650s are mired by mura, then why not the 750s?. After all, they are the same panel, are they not?. They all emanate from the same assembly line, do they not?. I just think that there are less 750s floating around and less finicky owners dickering with the BL and contrast/brightness to enhance the mura. But then again, I could be wrong

Mura, clouding, and flashlights just happen to be a flaw with LCD panels. Some have them, some dont. Any brand/model LCD tv can have these issues. Just gotta roll the dice to get a good one.
Lestat Phoenix's Avatar Lestat Phoenix
03:46 AM Liked: 10
post #292 of 12494
05-13-2008 | Posts: 460
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Quote:
Originally Posted by axmode View Post

How about those of us who own the future XBR 10/11/12...21/22?. Can we chime in?.

LOL!
Lestat Phoenix's Avatar Lestat Phoenix
03:49 AM Liked: 10
post #293 of 12494
05-13-2008 | Posts: 460
Joined: Oct 2006
Quote:
Originally Posted by studdad View Post

Don't expect an update for Pillaring. What you might try is lowering your contrast. Pillaring is worst when contrast is over 85.

I would say Pillaring maybe is not the right word, the backlight goes up to 10 sometimes on it own if I switch movies or something then that is when it happens its very weird and has to be a board problem or could be fixed by a firmware update I hope.
Datacide's Avatar Datacide
06:10 AM Liked: 14
post #294 of 12494
05-13-2008 | Posts: 328
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Quote:
Originally Posted by caa100 View Post

But what possible reason would there be for the set to switch to 60hz to display the VGA input? Repeating a frame requires no image processing.

But it can cause input and other delay. There has to be something "processing" to repeat a frame.
dms541's Avatar dms541
06:47 AM Liked: 10
post #295 of 12494
05-13-2008 | Posts: 134
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If you look closely at the block diagram in the first post you'll notice that the USB port has an alternate label "Blue Tooth". Any ideas what that means? Is this TV bluetooth compatible?
caa100's Avatar caa100
08:35 AM Liked: 10
post #296 of 12494
05-13-2008 | Posts: 870
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Quote:
Originally Posted by axmode View Post

If some of the 650s are mired by mura, then why not the 750s?. After all, they are the same panel, are they not?. They all emanate from the same assembly line, do they not?. I just think that there are less 750s floating around...

To be sure. There are a lot more owners on the 650 thread, therefore more complaints of mura.
caa100's Avatar caa100
08:47 AM Liked: 10
post #297 of 12494
05-13-2008 | Posts: 870
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Quote:
Originally Posted by BoNg420 View Post

any difference in PQ

650 vs 750?

I'm not touching this one with a 10 foot pole!
  • When I linked to posts suggesting they had different internal architectures, skeptics emerged.
  • When I posted that a Samsung rep told me the internal architectures were basically the same, the skeptics emerged.

I am only kidding Skepticism is fine, folks, keep it up. Just glad I have been able to fuel both sides of the debate.

Now I will do it again:

On the one hand: I scrolled back through this thread, and counted 3 posts from people who compared the 650 and 750. All said they liked the 750 PQ better.

On the other hand: I have looked at both sets (adjusting each to my personal preferenecs.) PQ seemed about the same to me. However, I did not see them at the same time. So to some extent I was working of memory when I looked at the 750.

However, I did notice that the default settings for the 750 were quite different from those of the 650. That may account for some of the differences that have been reported.

In the end, this is what I think:

I believe that the internal architectures are significantly different, as indicated by the SM diagrams that have been posted.
But the PQ did not look different to me (though I viewed them at different times.).
caa100's Avatar caa100
08:53 AM Liked: 10
post #298 of 12494
05-13-2008 | Posts: 870
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Quote:
Originally Posted by Datacide View Post

But it can cause input and other delay. There has to be something "processing" to repeat a frame.

I disagree. The content of a frame does not have to be manipulated in any way to repeat it. All it has to do is sit in a buffer. Processing is manipulation of the frame itself - color correction, edge enhancement, motion interpolation. That's the stuff that causes input lag, and that is why it is bypassed in game mode.

And think about it: if throttling back to 60hz would improve performance of the set, why would such an "improvement" be reserved for a lame analog PC connection?
spfhelmiii's Avatar spfhelmiii
09:09 AM Liked: 10
post #299 of 12494
05-13-2008 | Posts: 33
Joined: May 2008
Can anyone post a link to an online User Manual for the 750? I'm still trying to confirm whether the 750 supports 1080p over component or just HDMI. I know one poster said that it did, but before I make a decision I want to confirm this.

If there is no user manual, could someone post the best number to call to get a Samsung rep to ask these questions?

Much appreciated, thanks.
slatedogg99's Avatar slatedogg99
09:11 AM Liked: 10
post #300 of 12494
05-13-2008 | Posts: 20
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Quote:
Originally Posted by kokobucks View Post

Anyone with experience know if it is worth getting an extended warranty with a Samsung TV? I know consumer reports has gives Samsung a good reliablity rating, but I'm sure it is relative. I'll probably either get the tv from Big River or BB. Big River has an Samsung extended warranty and BB is their own.

I just purchased the 46A650 from big river last Thursday and thought about getting the extended warranty, but the MasterCard I purchased it on offers a year long warranty after the manufacturer's warranty expires - so it's essentially getting another year for free. But there is a lot of fine print to read. If you want the extra few years after that I'd get it, but I'm gonna hope that if the tv lasts 2 years then it should last many more after that too.
Tags: Samsung , Samsung 40 Inch Lcd Hdtv Ln40a750 , Lcd Hdtv , Samsung Ln52a750 52 Inch 1080p Dlna Lcd Hdtv , Samsung Ln46a750 46 Inch 1080p Dlna Lcd Hdtv With Red Touch Of Color

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