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Picture quality problem

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Old 11-23-2007, 01:08 PM   #1
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Default Picture quality problem

Hello,

I recently purchased a 47" LG (47LC7DF 1080P) television, and the whole D* HD setup to go with it. The picture was stunning and everything I hoped HD would be. The only problem was one of the HDMI ports was not working. I took the TV back, purchased the same exact model, hooked it up the same way with the same settings, and the picture was not nearly as good. BTW, I have the settings set the way most recommended in this forum (thank you for those with this knowledge), using composite cables.

The picture is o.k., but not as sharp, and there seemed to be a digital "fuzz" around the edges of objects, expecially people. No problem I thought. Forget LG, and go buy a Sony. I bought a KDL-46V2500. Guess what? The picture is exactly the same as on the LG. I'm starting to think it isn't the TV, but maybe a D* issue. I'm very dissapointed, and am now stuck with a TV that is not the way it should be.

I have tried both composite and HDMI, and can't see any difference. I've messed around with all the settings I could think of to no avail. D* says everything is set right, and Sony and LG said the same thing. All I did was unplug the first TV and plug in the next two!! It just is not the way it should look. Although you can tell the HD channels are HD, they look way less detailed than they did on the first LG tv, and that fuzziness and digitial-out-of-foucus around the edges still continues. Does anyone have any suggestions on what may be going on, and maybe some suggestions on how to fix this? Thanks for any help.
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Old 12-02-2007, 06:57 PM   #2
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Hey man, I just also recently purchased the LG 47LC7DF, I have RCN HD Cable (Motorola DCT6416 III HD/DVR Cable box.) connected via HDMI (problem remain when using components)

Im also noticing a bunch of fuzzyness around letters, people, I also notice alot of blocking/chunking (not sure how best to describe it) with fast moving red areas. Seriously its to a point that Im ready to return to the TV and put my Sony RPTV back up. Any fast moving, sports, movies with fast action, its as if the TV cant keep up and it becomes blurred/chunking as if blocks of color are moving.

Im not sure if its the cable box or the TV, I did purchase the 4yr warranty via Best Buy, and and still within the 30day return... Any help suggestions would be greatly appreciated as I'm really frustrated at this point.

Thanks
Sully
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Old 12-02-2007, 08:22 PM   #3
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Quote:
Originally Posted by TheMouth View Post
Hello,

I recently purchased a 47" LG (47LC7DF 1080P) television, and the whole D* HD setup to go with it. The picture was stunning and everything I hoped HD would be. The only problem was one of the HDMI ports was not working. I took the TV back, purchased the same exact model, hooked it up the same way with the same settings, and the picture was not nearly as good. BTW, I have the settings set the way most recommended in this forum (thank you for those with this knowledge), using composite cables.

The picture is o.k., but not as sharp, and there seemed to be a digital "fuzz" around the edges of objects, expecially people. No problem I thought. Forget LG, and go buy a Sony. I bought a KDL-46V2500. Guess what? The picture is exactly the same as on the LG. I'm starting to think it isn't the TV, but maybe a D* issue. I'm very dissapointed, and am now stuck with a TV that is not the way it should be.

I have tried both composite and HDMI, and can't see any difference. I've messed around with all the settings I could think of to no avail. D* says everything is set right, and Sony and LG said the same thing. All I did was unplug the first TV and plug in the next two!! It just is not the way it should look. Although you can tell the HD channels are HD, they look way less detailed than they did on the first LG tv, and that fuzziness and digitial-out-of-foucus around the edges still continues. Does anyone have any suggestions on what may be going on, and maybe some suggestions on how to fix this? Thanks for any help.
I think you mean component cables. Composite won't deliver HD, so if you can see HD stations you must be hooked through component.
Your problem is weird. I don't know what to tell you, except it must be you cable provider if it's happened with two TV's now. And two good TV's at that.
You may try to pick up some free over the air stations and see if they look better. If over the air stations also look bad, then it's the TV. Or do you have an HD DVD player to test the picture.
One last thing, set the TV on standard mode, not vivid and see if that helps.
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Old 12-02-2007, 08:40 PM   #4
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Originally Posted by Sullyz View Post
Hey man, I just also recently purchased the LG 47LC7DF, I have RCN HD Cable (Motorola DCT6416 III HD/DVR Cable box.) connected via HDMI (problem remain when using components)

Im also noticing a bunch of fuzzyness around letters, people, I also notice alot of blocking/chunking (not sure how best to describe it) with fast moving red areas. Seriously its to a point that Im ready to return to the TV and put my Sony RPTV back up. Any fast moving, sports, movies with fast action, its as if the TV cant keep up and it becomes blurred/chunking as if blocks of color are moving.

Im not sure if its the cable box or the TV, I did purchase the 4yr warranty via Best Buy, and and still within the 30day return... Any help suggestions would be greatly appreciated as I'm really frustrated at this point.

Thanks
Sully
Ok I did a little more looking, found some info on pulling SNR and AGC levels from the DCT6416 III, and my results are as follows..

OOB Freq 075.25Mhz
SNR: 19.5-19.9 FAIR
AGC: 25% GOOD

I know the higher, the better for SNR and the low the better for AGC, so how bad is my reception? I know that the more Splits on the line will lead to worse reception. At the moment, I have a straight shot from my line in (from head) -> 1to3 split -> to Motorola DCT6416. The 2nd line off the triple split goes to the Cable modem in my office.

Either way, anyone familiar with these levels, please let me know what you think and possible resolve.

Thanks ahead of time!
Matt
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Old 12-02-2007, 09:00 PM   #5
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Sorry, you lost me there. Somebody that knows about that stuff will probably chime in.
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Old 12-02-2007, 09:15 PM   #6
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Quote:
Originally Posted by TheMouth View Post
Hello,

I recently purchased a 47" LG (47LC7DF 1080P) television, and the whole D* HD setup to go with it. The picture was stunning and everything I hoped HD would be. The only problem was one of the HDMI ports was not working. I took the TV back, purchased the same exact model, hooked it up the same way with the same settings, and the picture was not nearly as good. BTW, I have the settings set the way most recommended in this forum (thank you for those with this knowledge), using composite cables.

The picture is o.k., but not as sharp, and there seemed to be a digital "fuzz" around the edges of objects, expecially people. No problem I thought. Forget LG, and go buy a Sony. I bought a KDL-46V2500. Guess what? The picture is exactly the same as on the LG. I'm starting to think it isn't the TV, but maybe a D* issue. I'm very dissapointed, and am now stuck with a TV that is not the way it should be.

I have tried both composite and HDMI, and can't see any difference. I've messed around with all the settings I could think of to no avail. D* says everything is set right, and Sony and LG said the same thing. All I did was unplug the first TV and plug in the next two!! It just is not the way it should look. Although you can tell the HD channels are HD, they look way less detailed than they did on the first LG tv, and that fuzziness and digitial-out-of-foucus around the edges still continues. Does anyone have any suggestions on what may be going on, and maybe some suggestions on how to fix this? Thanks for any help.
Is the output resolution of the D* box set to 1080i?

I'm almost certain it cannot be the TVs, because two decent sets with horrible pictures is not common. How close are you to the TV as well? I have noticed that LGs tend to put more noise into the picture than other sets. Even after toying with sharpness and noise reduction settings (on and off).

To Sullyz: The boxes you are seeing are compression of the HD signal and in no way are from your TV.
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Old 12-02-2007, 09:46 PM   #7
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Correction the box I have is a DCT6412 Phase III, and the above results were from the internal diags of the box.

Regular digital channel pq is terrible very fuzzy, HD Channel pq pixelates, fuzzy, and sometimes just becomes all blocky during fast moving points. Its driving me nuts. Im heading down to RCN tomorrow and attempting to switch out the box for a DCH3216..

I have verified all my Coax connections are tight. So i guess IM narrowing down the issue to either the box (DCT6412) or the headend levels.

I just want to make sure that the lousy PQ isn't due to the LG... Anyone else with this TV getting optimal PQ?
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Old 12-03-2007, 08:59 AM   #8
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Default CATV Problem

Go with a more reliable source to evaluate your problem. Try a HD or BluRay player. Even a std DVD with Component video output will tell you if the TV is the problem. My experience with CATV boxes is that they pretty much all suck. You get some nice HD channels but none in my area are consistently good enough to test with. Try a different source. Also if you if you are using an AV amp with HDMi passthrough, bypass that temporarily and go straight to the from your HDMI Source. 10-1 there is no problem with the tv,, just output from the CATV box is poor.
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Old 12-03-2007, 10:33 AM   #9
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I hooked up the Xbox 360 to the TV last night and made some passes with Forza 2, the TV looks amazing with it... So i guess im answering my own question.

Sucks, spent a good amount on the TV and the cable services, and getting Teh Suk service... bah!
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