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Official Samsung LNxxA750 Owners Thread - Page 403

post #12061 of 12474
11/13/09 at 10:06am
Quote:
Originally Posted by gmkelm View Post

Honestly, it really depends on the agent you get when you call. Samsung just replaced my LN46A750 as a result of the "cosmetic" issue with a new LN46B750. It is worth a try - or a couple of them.

Mark

I presently have both Sears and Samsung scheduled next week for the power cycling at start up (I have the halo and chipping, too). I'll have to cancel one of them. Or do I keep both appointments? It would be like getting a second opinion. Hmmm...
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post #12062 of 12474
11/14/09 at 9:24pm
wow looks like we need to start a seperate exchange thread. this gives me flashbacks of the old lntxx71f thread. oh well, this may be a dumb question but will our sets get an update for hdmi 1.4 or will this be a hardware issue that will only be on newer LCD's?

EDIT: nevermind found my own answer looks i will need to buy a new 3D tv when the time comes

"The official word from HDMI.org is that "most of the new features introduced in HDMI 1.4 will require a new HDMI chip to enable, and cannot be upgraded via firmware." That said, with 3D TV in its infancy and 720p/1080p HD TV only just gaining a consumer foothold, HDMI 1.3 still delivers the goods. You could argue that you don't even need an integrated data channel, as new TVs and set-top boxes are now including Ethernet jacks as standard."
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post #12063 of 12474
11/18/09 at 5:47am
I bought my Samsung LN52A750 in December of 2008 from Amazon. Like kongfish:

[quote=kongfish;17526149]I bought a samsung LN46A750 & the thin edge around the outside of the tv is cracked(i think it is called the bezel?) it is the part that the red thin plastic comes off the face and extends out all the way around the tv. it is the touch of color peace. where can I find the part and where can I see the diagram of this tv is I will know what parts i need. I want to see it taken apart so i can see what the part is called and how it comes off..../QUOTE]

... I too think that it's the bezel coming off on the bottom, tv's right side. I just wanted to clear that it's indeed the bezel. I tried pushing it back in, but it wont stay in.


Quote:
Originally Posted by Patrick. View Post

It's cosmetic, read your manual the warranty doesn't cover cosmetic damage.
...

But it seems a lot of people in this thread are getting their TVs serviced or replaced because of bezel issues, no?

Otherwise, looking at savior02's posts here:

Quote:
Originally Posted by savior02 View Post

The halo effect IS NOT normal:

http://ars.samsung.com/customer/usa/...ARS_ID=7740957


Sammy: If your LN46A750 or LN52A750 is displaying the Halo Effect, it requires service.
...

Quote:
Originally Posted by savior02 View Post

If you have the chipping in the bezel than most likely u have the halo problem. the chipping oddly isnt included in the warranty so you need to specify that the problem is the halo due to the chipping in your opinion. Best way is make the claim online and under the description you paste this link:

http://ars.samsung.com/customer/usa/...ARS_ID=7740957

Go there and click on online service request form.

Seems I can still get service going the halo route. I'll try to put some pictures up later.
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post #12064 of 12474
11/18/09 at 5:56am
Quote:
Originally Posted by bill4903485 View Post

This afternoon, I worked on the flashlighting problem on my LN52A750 with complete success, a combination of displaying a completely white picture for an hour (with backlight, contrast, brightness jacked up,) and then opening up the set and adjusting the diffuser. I now have a far more uniform picture, probably a 9 out of 10... up from a 6.5/10. This set is so beautiful looking calibrated. I really enjoyed the World Series tonight.

While I could have purchased the B750 for only $100 more, my A750 actually measures better than my friends B750... and has a better picture almost across-the-board. Yep, I actually chose last year's model for its better picture quality. And no panel lottery on this one. It's a keeper.

wow, this sounds interesting. I'm not even familiar with what the flashlighting problem is but the opening up your tv portion of your repair sounds pretty complicated - and scary. I hope I don't have this - what is it exactly?
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post #12065 of 12474
11/18/09 at 12:39pm
Quote:
Originally Posted by bill4903485 View Post

This afternoon, I worked on the flashlighting problem on my LN52A750 with complete success, a combination of displaying a completely white picture for an hour (with backlight, contrast, brightness jacked up,) and then opening up the set and adjusting the diffuser. I now have a far more uniform picture, probably a 9 out of 10... up from a 6.5/10. This set is so beautiful looking calibrated. I really enjoyed the World Series tonight.

While I could have purchased the B750 for only $100 more, my A750 actually measures better than my friends B750... and has a better picture almost across-the-board. Yep, I actually chose last year's model for its better picture quality. And no panel lottery on this one. It's a keeper.

What do you mean by _adjust_ the diffuser? What adjustment was made?
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post #12066 of 12474
11/18/09 at 4:16pm
Gentlemen,

Apologies in advance for being a bit of a late jumper on the 750 bandwagon. I had an older 46" Samsung LCD (LNS4695DX) that pleased me greatly, and I recently upgraded when the price on the 52" 750 model (240Hz) dropped down to about $1,900.

Overall, I like the set a lot. I'm pleased with the purchase, and the TV is especially good for Blu-ray. However, I'm experiencing an issue with the machine I wanted to run by the experts.

This TV seems to have a picture quality quirk that I haven't previously experienced. I don't know quite how to explain this, but fine images (i.e. text or lettering) seem to be "overenhanced" such that the edges of lettering bleed into each other, or into surrounding colors. I first thought that the "Edge Enhancement" setting would fix this, but it seems to have no effect. This is particularly pronounced on SD sources, but is also somewhat noticeable in HD.

To give you an example, if I'm watching a football game - even in HD - I find it nearly impossible to read the names on the backs of jerseys when the camera isn't zoomed in. In a letter like "P", for instance, the "hole" at the top of the "P" will appear completely filled in due to this effect. Clearly, text from that distance is never easy to read, but I bring this example up because it's one thing I that I distinctly remember was more clear on my old TV. I know that SD images look wonky on HD sets, but I've never had this specific problem before.

I've tried tinkering with the basic settings to fix this, but to no avail. Turning the sharpness way down makes the problem less noticeable, but that also makes the picture fuzzy (duh). Before I re-calibrated the machine via some of the service menu settings I've found in this thread, I wanted to run this by you guys. I'm curious as to whether you know of this issue (or if my ramblings adequately explain the problem to begin with). Thanks in advance for taking the time to read this.

Below is a picture that illustrates one manifestation of the problem. This is a shot from a Nintendo Wii source (480p). Note that the "P3" is supposed to be solid gray, but, here, the lettering is murky/inconsistently-colored due to the "overenhancement" issue I talk about above.

Thanks again, and any help is appreciated.

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post #12067 of 12474
11/19/09 at 5:38am
Is auto DNR turned off? Other than that I can't think of much. Might be source related too, cable and satellite have lots of compression problems.

Dynamic mode is edge enhanced but standard and movie are pixel perfect. I'm using my this TV as my main computer monitor and I never have trouble with text.
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post #12068 of 12474
11/19/09 at 6:24am
Thanks for the response. To clarify, this happens with all sources, and I have everything connected via HDMI except for Wii, which is connected via component cables because there is no HDMI option of which I'm aware. All of these inputs go directly from device to TV (nothing through the receiver).

I think my next move in a few days will be to do a factory reset, then check the service mode / calibration suggestions in this thread. That is, unless someone else has a suggestion regarding this problem that would preclude that move.

Thanks again.
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post #12069 of 12474
11/19/09 at 11:12am
Quote:
Originally Posted by Patrick. View Post

Is auto DNR turned off? Other than that I can't think of much. Might be source related too, cable and satellite have lots of compression problems.

Dynamic mode is edge enhanced but standard and movie are pixel perfect. I'm using my this TV as my main computer monitor and I never have trouble with text.

dude i started using this as a computer monitor too! im using the a750 and my b750 should be coming in today and i just thought to myself why not use it as a montor b4 i get the new one lol but man i have a 40" and its huge for a monitor i can fit up to 4 different huge windows and work more efficiently...but i wonder if it will damage your vision in the long run since im only about 14 inches away from it lol...especially since i had lasik done....but my plan was to use my tv as a pc monitor until i buy a 24"..but now I think i will stay with my tv lol BUT i will miss watching TV and browsing on my pc at the same time and i just sold my laptop....tried PIP with cable/HDMI-DVI and it works good but didnt like it that much b/c cant use my DVR....what does your setup look like??? how is it working out for you???
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post #12070 of 12474
11/19/09 at 2:00pm
Quote:
Originally Posted by JRTTiger View Post

Gentlemen,

Apologies in advance for being a bit of a late jumper on the 750 bandwagon. I had an older 46" Samsung LCD (LNS4695DX) that pleased me greatly, and I recently upgraded when the price on the 52" 750 model (240Hz) dropped down to about $1,900.

Overall, I like the set a lot. I'm pleased with the purchase, and the TV is especially good for Blu-ray. However, I'm experiencing an issue with the machine I wanted to run by the experts.

This TV seems to have a picture quality quirk that I haven't previously experienced. I don't know quite how to explain this, but fine images (i.e. text or lettering) seem to be "overenhanced" such that the edges of lettering bleed into each other, or into surrounding colors. I first thought that the "Edge Enhancement" setting would fix this, but it seems to have no effect. This is particularly pronounced on SD sources, but is also somewhat noticeable in HD.

To give you an example, if I'm watching a football game - even in HD - I find it nearly impossible to read the names on the backs of jerseys when the camera isn't zoomed in. In a letter like "P", for instance, the "hole" at the top of the "P" will appear completely filled in due to this effect. Clearly, text from that distance is never easy to read, but I bring this example up because it's one thing I that I distinctly remember was more clear on my old TV. I know that SD images look wonky on HD sets, but I've never had this specific problem before.

I've tried tinkering with the basic settings to fix this, but to no avail. Turning the sharpness way down makes the problem less noticeable, but that also makes the picture fuzzy (duh). Before I re-calibrated the machine via some of the service menu settings I've found in this thread, I wanted to run this by you guys. I'm curious as to whether you know of this issue (or if my ramblings adequately explain the problem to begin with). Thanks in advance for taking the time to read this.

Below is a picture that illustrates one manifestation of the problem. This is a shot from a Nintendo Wii source (480p). Note that the "P3" is supposed to be solid gray, but, here, the lettering is murky/inconsistently-colored due to the "overenhancement" issue I talk about above.

Thanks again, and any help is appreciated.

Try adjusting your film mode. If I remember right from earlier in the thread Film1 and Film2 are optomized differently one for film and one for video. Try swtiching between them and see if that has any effect.
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post #12071 of 12474
11/19/09 at 2:30pm
I have tinkered with the film settings, and it doesn't seem to affect this issue. I'm just looking for a "pixel-for-pixel" type picture.
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post #12072 of 12474
11/19/09 at 2:55pm
Quote:
Originally Posted by JRTTiger View Post

...
Apologies in advance for being a bit of a late jumper on the 750 bandwagon. I had an older 46" Samsung LCD (LNS4695DX) that pleased me greatly, and I recently upgraded when the price on the 52" 750 model (240Hz) dropped down to about $1,900.
...

If you bought a set with 240Hz, that implies you bought a B750 and not an A750. So you might be in the wrong thread, as the B750 has some blur/judder options on the AMP setting that are not available on the A750.

Quote:
Originally Posted by JRTTiger View Post

...
To give you an example, if I'm watching a football game - even in HD - I find it nearly impossible to read the names on the backs of jerseys when the camera isn't zoomed in.
...

One of the things I found was that I had defaulted to letting my cable box upscale everything to 1080i. I later discovered I had better HD sports pictures when I let 720p HD sports images pass through the box as is; the edges were clearer without introducing interlacing in the communication from cable box to set.

Quote:
Originally Posted by JRTTiger View Post

...
Turning the sharpness way down makes the problem less noticeable, but that also makes the picture fuzzy (duh).
...
Below is a picture that illustrates one manifestation of the problem. This is a shot from a Nintendo Wii source (480p).
...

Actually, a lot of people who have used a calibration disk have found that they needed a Sharpness setting of 0 to avoid adding ringing artifacts to the edges of images. In the picture you posted above, it looked to me as if that might be happening around the bright white letters at the bottom. But it is hard to be sure, as you indicated that was a 480p image from a Wii, so one would expect artifacts when the image was upscaled to 1080.

I wonder if you might be seeing different effects on SD and on HD images, and having problems because you are looking for one solution to what could be two distinct problems.

Quote:
Originally Posted by JRTTiger View Post

...
This is particularly pronounced on SD sources, but is also somewhat noticeable in HD.
...

Quote:
Originally Posted by JRTTiger View Post

... I'm just looking for a "pixel-for-pixel" type picture.

If you are looking for a "pixel-for-pixel" image of a SD 480 line source on a 1080 line screen, you are not going to find it. Actually, this is another reason why I think you may be confounding different issues by looking at SD and HD as if they are the same.

Good luck,
Bill
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post #12073 of 12474
11/19/09 at 3:37pm
Bill,

Thanks a great deal for that response. I think you're right - I'm in the wrong thread. I thought I had the "A" because the model number ended in "A." (I know, I know - n00b mistake). I will consult the fine folks in the "B" thread to see if they have any advice.

As for the "pixel-for-pixel" issue, I didn't mean it literally. I realize a 480p (or 720p) source is, by definition, not going to be pixel-for-pixel. I just meant I wanted a sharp display that didn't have these sorts of odd distortions.

When I'm using a 480p source, I usually have the sharpness down to 10 or 15, fyi.

Thanks again for taking the time to provide such an informative answer.

JRTTiger
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post #12074 of 12474
11/20/09 at 3:55am
Quote:
Originally Posted by srizvi1 View Post

I bought my Samsung LN52A750 in December of 2008 from Amazon. ....

Here are some pictures to go w/ what I was talking about w/ my bezel and halo question in the post I'm quoting. If you look closely at the third pic, you can see the wall in between the bezel and the TV since it's coming off. I pulled it out a little for taking the picture and pushed it back in as far as it would go (which is picture 4)
LL
LL
LL
LL
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post #12075 of 12474
11/20/09 at 5:17am
Quote:
Originally Posted by savior02 View Post

dude i started using this as a computer monitor too! im using the a750 and my b750 should be coming in today and i just thought to myself why not use it as a montor b4 i get the new one lol but man i have a 40" and its huge for a monitor i can fit up to 4 different huge windows and work more efficiently...but i wonder if it will damage your vision in the long run since im only about 14 inches away from it lol...especially since i had lasik done....but my plan was to use my tv as a pc monitor until i buy a 24"..but now I think i will stay with my tv lol BUT i will miss watching TV and browsing on my pc at the same time and i just sold my laptop....tried PIP with cable/HDMI-DVI and it works good but didnt like it that much b/c cant use my DVR....what does your setup look like??? how is it working out for you???

Well, I've got the A750 here in my Game room with my pc beside it, I'm currently using a bit of a cobbled together sound setup. 2 Energy ACT satelittes hooked up to an old Klipsch Pro media sub for amplification. When I get some money I'll upgrade my old Denon 2807 receiver in the living toom I'll move it in here. I plan on pairing it up with a pair of Klipsch RB-81s I have lying around (no I'm not a big surround guy ) I've also got a little headphone amp and some Sennheiser 650s for the late night hours.

As for the PC it's pretty cutting edge, I7 920 6 gigs of ram and a Geforce GTX 280. Also got 2TB on tap for a few blu ray rips and MKVs.

In the living room I've got my "main" setup with the aforementioned 2807, PS3 and HD-XA2. I'm using an Outlaw sub and 2 Energy RC 50 towers. In there I've got a Pioneer 5020 but I only use it at night and for serious watching.

BTW I'm about 2ft away too Wife says I'll be blind in 10 years. I'll get a few pics of my setup on here near christmas.. I want to wait until I have my new receiver and have those bad boy klipsches on their stands
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post #12076 of 12474
11/20/09 at 8:42am
Quote:
Originally Posted by JRTTiger View Post

I have tinkered with the film settings, and it doesn't seem to affect this issue. I'm just looking for a "pixel-for-pixel" type picture.

Have you tried HDMI 2 and labeling it PC, It puts the TV into a different mode and disables the image processing.
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post #12077 of 12474
11/20/09 at 2:19pm
iatacs19,

Thanks for the tip - I will give that a shot. Does it have to be HDMI2? I ask because my cable box is HDMI1. Not a big deal to switch them, but I just wanted to make sure whether it was input-specific.
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post #12078 of 12474
11/20/09 at 2:31pm
I believe atacs19 is correct, it needs to be HDMI 2 for this to work.
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post #12079 of 12474
11/22/09 at 6:17pm
Quote:
Originally Posted by srizvi1 View Post

Here are some pictures to go w/ what I was talking about w/ my bezel and halo question in the post I'm quoting. If you look closely at the third pic, you can see the wall in between the bezel and the TV since it's coming off. I pulled it out a little for taking the picture and pushed it back in as far as it would go (which is picture 4)

Thats F-ed up. I dont mind the "halo effect" but I would be very angry if that happend. I do see a little de-lamination on my bezel but not enough that it worrys me. So Im guessing your outta warranty?

edit: I see that your not out of warranty push the issue. I have a 47 LG lcd and within the first month I had problems. even though the set was new I still had to sit the phone going through stuiped protocols these companys have set up. Also my 750 was a replacement for the sammy 71f that i went through hell trying to get fixed and numerous phone calls and service calls with Samsung. Just be persistant your issue is legit and deserves to be fixed for sure. in the end both companys fixed my problems but it takes work (too much sometime ) on the consumers end.

good luck
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post #12080 of 12474
11/22/09 at 9:31pm
^^ Thanks man, will get started with the service request from the link that's over here (http://ars.samsung.com/customer/usa/...ARS_ID=7740957) tomorrow - or tuesday night if they need details off the TV (That's hwen I'll be at my family's house again where the TV is).
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post #12081 of 12474
11/22/09 at 10:53pm
I would do it as soon as possible maybe even call 1800SAMSUNG. Samsung customer service is pretty good it just takes awhile. they will want all the info off the TV serial # etc.
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post #12082 of 12474
11/23/09 at 5:10pm
^^ will do, thanks again
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post #12083 of 12474
11/25/09 at 1:42pm
^^ Called 1-800 Samsung this morning and spoke with a troubleshooting agent. She was going to schedule a repair but said my TV was down as an august 2008 purchase. I faxed in my receipt so once they fix that, a service person should come around and either fix or (hopefully) replace as others in this thread it seems have been getting.
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post #12084 of 12474
11/25/09 at 8:44pm
Has anyone ever found a fix for the input lag on this set? I'm aware of the renaming HDMI 2 as PC fix BUT that really only works as long as your source material is 1080p. The tv defaults back out of PC mode if the source isn't 1080p.

I've read in some other threads for other sets on here that there are lip sync delays in the service menus on many tvs is there such a thing on this set?
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post #12085 of 12474
11/26/09 at 9:09am
I've had my 52" A750 over a year now with no issues until just this week.

On AMC-HD they have been running the Road Warrior movies. While watching parts of #2 I noticed the screen would shift out of focus. It happened several times. My wife said latter on that it happened to her recently but not sure if it was a HD program or not. The signal comes in via HDMI from a Comcast DVR (motorolla).

Anyone seen or heard of this?

CH
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post #12086 of 12474
11/27/09 at 5:31am
Unless you can reproduce it with a Blu Ray it's impossible to know whether it's your cable or the TV. Cable has so many problems it's not an effective way to test your gear.

Just last week watching smallville the whole beginning of the show the sound skipped every few seconds. Things like this happen all the time with TV, so if you want to double check you'll need something that you can count on and be sure of.
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post #12087 of 12474
11/27/09 at 5:33am
Quote:
Originally Posted by aquastorm View Post

Has anyone ever found a fix for the input lag on this set? I'm aware of the renaming HDMI 2 as PC fix BUT that really only works as long as your source material is 1080p. The tv defaults back out of PC mode if the source isn't 1080p.

I've read in some other threads for other sets on here that there are lip sync delays in the service menus on many tvs is there such a thing on this set?

The best fix is VGA PC mode. Other than that no. If you really want to fix your problem get a receiver that upscales your console to 1080p.

Or you could always use a real game system like a PC
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post #12088 of 12474
11/27/09 at 9:13am
Quote:
Originally Posted by aquastorm View Post

Has anyone ever found a fix for the input lag on this set? I'm aware of the renaming HDMI 2 as PC fix BUT that really only works as long as your source material is 1080p. The tv defaults back out of PC mode if the source isn't 1080p.

I've read in some other threads for other sets on here that there are lip sync delays in the service menus on many tvs is there such a thing on this set?

force 1080p output from the ps3 by unchecking all boxes in display settings configuration except for the 1080 box. works like a charm. i use it like that and have great gaming with imperceivable lag on MW2 and all other games. this is on the HDMI/DVI input renamed to PC of course.
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post #12089 of 12474
11/27/09 at 7:49pm
Is using a 46A750 as a computer monitor on my desk sick and wrong?

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post #12090 of 12474
11/27/09 at 8:07pm
[quote=sharkcohen;17614426]Is using a 46A750 as a computer monitor on my desk sick and wrong?

No, very cool.
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