2010 Samsung Plasma Buzz - Page 12 - AVS | Home Theater Discussions And Reviews
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post #331 of 994 Old 09-26-2010, 02:19 PM
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Originally Posted by punisherofall View Post

My set only came with 2 ferrite cores, but in the owners manual it shows the black one 2 inches or less from the back of the set, and the grey one 3/4 of an inch or less from the power plug. You place the cord in the ferrite core and then loop the cord around the core and back through the 2nd space and clamp it shut. My set with these installed has a slight buzz ( but I can tune it out watching anything,) my model is a pn58c8000. My xbox360 with games installed to the hard drive is louder than my buzz.

Mine also came with 2. The owners manual only states it comes with one. There is only one diagram for attaching this. The diagram only shows the core near the back of the set (within 2 inches). It does not show the cord looped around or the addition of a second core. I have the same model as you. My build date is July 2010. Yours?
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post #332 of 994 Old 09-26-2010, 02:26 PM
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Originally Posted by DarthAVS View Post

Mine also came with 2. The owners manual only states it comes with one. There is only one diagram for attaching this. The diagram only shows the core near the back of the set (within 2 inches). It does not show the cord looped around or the addition of a second core. I have the same model as you. My build date is July 2010. Yours?

August 2010 is my build date. Look on page 4 of the owners manual 3/4 of the way down and you will see the cord diagram showing the back of the panel (diagram a) and the end of the cord with the plug (diagram b). It is tough to tell in diagram a, however, in diagram b you can see the cord looped around the core. Maybe there are different manuals?
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post #333 of 994 Old 09-26-2010, 03:09 PM
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Originally Posted by punisherofall View Post

August 2010 is my build date. Look on page 4 of the owners manual 3/4 of the way down and you will see the cord diagram showing the back of the panel (diagram a) and the end of the cord with the plug (diagram b). It is tough to tell in diagram a, however, in diagram b you can see the cord looped around the core. Maybe there are different manuals?

Below is a link to the 8000 series Manual. (Not sure how long this link will be valid. It is from Crutchfield. If the link doesn't work just search Crutchfield for PN58C8000. I couldn't get the manual to come up on the Samsung site.)

http://a248.e.akamai.net/pix.crutchf...30558C8000.PDF

It shows the wrapping of the cord in the "Supplied Accessories" section. (It is the "second" page 4.)

Note that I used the Ferrite Cores when I had a PN58C8000 and it made no difference in my buzzing. But if it only happens when you are running your Xbox it could help.

If not, maybe get a powerstrip that isolates the TV from the other outlets. I got the Tripp Lite HT10DBS. It has 4 isolated plugs to protect from EMI/RFI + 6 regular outlets. Does it really work, dunno... But it was the cheapest 10 outlet powerstrip I could find that had network protection also. (You can find it online for less than half MSRP.)
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post #334 of 994 Old 09-26-2010, 03:24 PM
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Originally Posted by rdellar17 View Post

Below is a link to the 8000 series Manual. (Not sure how long this link will be valid. It is from Crutchfield. If the link doesn't work just search Crutchfield for PN58C8000. I couldn't get the manual to come up on the Samsung site.)

http://a248.e.akamai.net/pix.crutchf...30558C8000.PDF

It shows the wrapping of the cord in the "Supplied Accessories" section. (It is the "second" page 4.)

Note that I used the Ferrite Cores when I had a PN58C8000 and it made no difference in my buzzing. But if it only happens when you are running your Xbox it could help.

If not, maybe get a powerstrip that isolates the TV from the other outlets. I got the Tripp Lite HT10DBS. It has 4 isolated plugs to protect from EMI/RFI + 6 regular outlets. Does it really work, dunno... But it was the cheapest 10 outlet powerstrip I could find that had network protection also. (You can find it online for less than half MSRP.)

Yes...that manual is not the same. I downloaded mine form Samsung. I'm good with the buzz now. After I installed the ferrite cores, I can't really hear it at all, unless I really concentrate on it and I am very close to the TV. Prior to the core install I couldn't stand the noise. All is good now.
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post #335 of 994 Old 09-26-2010, 09:18 PM
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Originally Posted by sonic_blue View Post

I would have to say the people reporting no buzz either watch from an angle to the side or above centre of the screen, or have lesser hearing.

'and/or'
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post #336 of 994 Old 09-26-2010, 09:18 PM
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Originally Posted by ak00 View Post


Well, the tech showed up, and added packing material/styrofoam padding in between each of the 3 circuit boards and the back of the set. The good news is that if you aren't sitting directly in front of it 9-12' back, eye-level, you don't notice it. Of course, the bad news is that I now have to reconsider the layout of the living room or get a stand/wall mount to get out of that "cone of buzz" which has gotten worse.

The tech did suggest that adding some environmental items in the living room might absorb the sound, but I've got an open living room with hardwood floors - so maybe my place is just not plasma friendly.

Of course, Costco no longer carries this model in stock - so if I return it - then it's just a refund with no swap. Of course, this would be a no-brainer if the picture just wasn't so nice.....

So are you saying this actually made matters worse? I assume this isn't any type of Samsung approved fix but something the tech came up with?
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post #337 of 994 Old 09-26-2010, 10:00 PM
 
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Originally Posted by DarthAVS View Post

When a mostly white screen came on, the buzz was incredible. It was way too loud.

But you do realise that this is the opposite of what others are complaining about. What we have instead is the loudest buzz on black screen and quietest on white screen, and in an extremely directional location, i.e straight out the center of the screen.

I would love to keep exchanging TV's until I get one that doesn't buzz but unfortunately not all retailers work that way, especially when they have Samsung telling them it's normal operating noise.
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post #338 of 994 Old 09-27-2010, 10:40 AM
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This is Definitely a power issue with these TV's. My PN58c7000 also had a buzz I connect a furman power conditioner and it minimized it greatly. To the point I could not hear it and would not know its there unless I put my ear up on the speakers or TV.
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post #339 of 994 Old 09-27-2010, 12:13 PM
 
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Originally Posted by micbob View Post

This is Definitely a power issue with these TV's. My PN58c7000 also had a buzz I connect a furman power conditioner and it minimized it greatly. To the point I could not hear it and would not know its there unless I put my ear up on the speakers or TV.

What type of buzz did you have? Was it the directional buzz that can only be heard from sitting facing the screen, ears level with the center of the screen, and louder with more black on screen?

It's funny you mention power supply as I've been trying to come up with reasons why these sets buzz more on black screen than white. I was thinking something along the lines of a power related issue like grounding maybe. It is very odd that these things buzz loudest on a full black screen as that's when there should be the least voltage going to the panel. Something doesn't seem right about that.
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post #340 of 994 Old 09-27-2010, 12:18 PM
 
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Never mind micbob, I just saw your posts in the owners thread and it seems that your buzz was coming through the speakers of your sound system. In that case it would be totally unrelated to the panel buzz that most of us are experiencing.
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post #341 of 994 Old 09-27-2010, 01:38 PM
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50C550 no buzz a week old with about 90 hours break in on/off about 10 times. Best Buy build date Aug 2010. Two dead pixels but I can live with that.

very happy
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post #342 of 994 Old 09-27-2010, 02:19 PM
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I got my 63C8000 a week ago and it does have a directional buzz. It comes from the upper right and upper left corners, about 5"s in from the side of the panel. The TV is wall mounted, and if I sit in front of the TV (so my head is level with the TV bottom) I hear nothing, but if I bring my head up to about the middle of the TV or higher I can hear it even back 10'. The TV has a great picture and I am not returning, I am going to try some line conditionaing and see how that helps...
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post #343 of 994 Old 09-27-2010, 02:41 PM
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Originally Posted by sonic_blue View Post

Never mind micbob, I just saw your posts in the owners thread and it seems that your buzz was coming through the speakers of your sound system. In that case it would be totally unrelated to the panel buzz that most of us are experiencing.

It is related, I have the same buzz without surround sound system but its magnified with the surround sound. I know with Plasma's you can get some buzzing for the electrical charges used to create the images but it shouldnt be this noticable. Thats what I say its coming from the power source used to run the panel switch mode power supply(SMPS). Whats weird in what you are discribing it should minimize in less bright situations not maginify. I was thinking of returning the TV and take a chance on one that has very minimial buzz but this seems to be working. Just hope it doesnt worsen in time.
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post #344 of 994 Old 09-27-2010, 03:20 PM
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Originally Posted by Mach1Man View Post

50C550 no buzz a week old with about 90 hours break in on/off about 10 times. Best Buy build date Aug 2010. Two dead pixels but I can live with that.

very happy

you're kidding right? brand new TV with 2 dead pixels. take it back...
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post #345 of 994 Old 09-27-2010, 04:56 PM
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Originally Posted by micbob View Post

It is related, I have the same buzz without surround sound system but its magnified with the surround sound. I know with Plasma's you can get some buzzing for the electrical charges used to create the images but it shouldnt be this noticable. Thats what I say its coming from the power source used to run the panel switch mode power supply(SMPS). Whats weird in what you are discribing it should minimize in less bright situations not maginify. I was thinking of returning the TV and take a chance on one that has very minimial buzz but this seems to be working. Just hope it doesnt worsen in time.

You might have already tried this, but I'd shut everything off, unplug all cables video/audio/etc from the TV, and then unplug anything else on the breaker that powers the outlet you plug the TV into... Then just plug the TV cable into your PL-PLUS C POWER CONDITIONER and then that into the wall... (Might repeat the below without the PL-PLUS also. Since that decreases one more variable.)

Then bring up the HDMI1 (or PC input if you have it) and listen at about 10ft in front of your TV screen with your ear at exactly dead center of the screen (center between top to bottom and left to right edges of the screen.)

You should hear the buzz on the black check signal screen (or at least I did) on the 58" and then if you compare that to something else it should be less or close to the same.

As an interesting side I am running the Webapolooza break in slides from a USB memory stick on my replacement PN50C8000 and decided to do a test. On my 50" at 10 foot the buzz is almost identical between the v120_006_FFFFFF.jpg (white) and v120_011_000000.jpg (black) images. Again barely noticeable vs my 58", but the buzz is there. But standing right beside the TV (ear level with top of tv and 6" from sceen) I actually hear more of a buzz on the brighter colors (closer to FFFFFF) and almost none on the darker colors. Might be what you are hearing.
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post #346 of 994 Old 09-28-2010, 12:06 AM
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The ferrite cores have never made a difference what so ever on my unit. I took off the back panel today and tightened all the screws but made no difference either. I can hear the buzz the most from the boards on the left and rights sides but the sound definitely emits from all around the front and the back of the panel to some extent. See the attachments for pictures that include the manufacture info for the panel itself and one of the noise filter attached to the power cable which doesn't seem to be a culprit because very little noise from that area.
LL
LL
LL
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post #347 of 994 Old 09-28-2010, 02:58 AM
 
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Originally Posted by el pablo View Post

I took off the back panel today and tightened all the screws but made no difference either. I can hear the buzz the most from the boards on the left and rights sides but the sound definitely emits from all around the front and the back of the panel to some extent.

I've done the same on my 58 and also found no improvement. I actually found the 2 scan boards and power board make hardly any noise and all, and what little noise they do make is blocked by the back cover anyway. I would say the buzz is coming from the panel itself possibly due to the removal of the second layer of glass.
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post #348 of 994 Old 09-28-2010, 12:09 PM
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So since this problem has been going on for a while, is it safe to say that there is no real fix for this buzz, but rather luck of the draw should you manage to replace it with a panel that lacks the buzz?

I just got the 58c8000 on saturday and the buss is noticeable as well as annoying when sitting 12 feet away, dead center. Sure I can sit to the right but the way our living room is setup, dead-center is the way to watch. I got a good idea on it but I still paid a nice sum of money for it, so needless to say I am very disappointed.

With regard to trying to swap it out, its the proper protocol to call Samsung first or should I call the retailer? I'm thinking that since it's so new the retailer might be the better option? I don;t want to take a day off from work just to have a Sammy tech tell me it's "within spec" and I'm not happy with it, so maybe I should try to swap it and roll the dice?

Otherwise i might just return it and go with something else. The Panny's were option B for me.
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post #349 of 994 Old 09-28-2010, 12:11 PM
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Also, I haven't calibrated the set at all (other than turning off MJC) so could that help? It's annoying to sit and watch a TV and sound as if I were under a street light with a bulb needing to be changed.
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post #350 of 994 Old 09-28-2010, 01:34 PM
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My Buzz on my PN58C7000 is better after 200+ hours... I have the 12" spot about 10-12' away that has the high voltage sound on dark scenes and its def reduced now that the set has some hours on it. My GF also doesnt notice it when sitting in the "sweet" spot anymore. Im 32 and she's 26 so I think our hearing is pretty good... If I turn the volume all the way off its still there but less apparent then before.

Side note, I also installed those clamps on the electric cord about 3 weeks ago, at the time they didnt make any difference..

Anyways, just my $.02
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post #351 of 994 Old 09-28-2010, 01:41 PM
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I've got the pn50c8000 and I get no buzz. I've heard altitude may may a difference, so for the record I'm at sea-level.
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post #352 of 994 Old 09-28-2010, 01:52 PM
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I put those clamps on as soon as I set the tv up too, I don't think they do anything. I'll give the TV more time but based on what I've read, it sounds like the buzz doesn't typically go away.
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post #353 of 994 Old 09-28-2010, 01:59 PM
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I just had a PN58C6500 delivered Friday and I'm considering returning it because of the buzzing. At first I heard the buzz but didn't think it was too bad. Once I got it set up the buzzing seems louder in my seating position about 13 feet away than it does with my head 6" from the screen.

I hear it all the time and it definitely gets louder on darker screens. Sound mostly drowns it out but I can hear it over normal TV volume when it's just dialog or a quiet scene. The sound changing tones as the screen brightness changes makes it even more annoying. Watching a movie it sounds like constant feedback or interference through my center channel but it's not coming from the speaker, it's coming from the screen.

If I send it back I probably won't do an exchange. Unfortunately I have no idea what I'd replace it with, I don't really want a Panasonic because of the rising and floating black issues. LG seems risky and I'm worried about glare on the screen. The Samsung is an awesome TV for deaf people.

I don't think elevation is a problem, I'm at no more than 500ft. I put the ferrite cores on the cord and they made absolutely no difference. For the record I'm 31 and don't have super sensitive hearing. I don't think I can hear above 16khz.
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post #354 of 994 Old 09-28-2010, 02:06 PM
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Originally Posted by Goatweed View Post

With regard to trying to swap it out, its the proper protocol to call Samsung first or should I call the retailer? I'm thinking that since it's so new the retailer might be the better option? I don;t want to take a day off from work just to have a Sammy tech tell me it's "within spec" and I'm not happy with it, so maybe I should try to swap it and roll the dice?

Otherwise i might just return it and go with something else. The Panny's were option B for me.


If you are within the return period and the buzz is too much, go to the retailer for a return or exchange. Samsung is likely to be of little help when it comes to abnormal buzzing. This is year 2 of the buzzing problem and hundreds of posts later there is still no consistent fix from Samsung. Even when a person gets a service person honest enough to acknowledge the buzz (above normal plasma hum) the service person will call Samsung and be told it is "normal" or "within spec". Buzzing that takes you being 15 feet away with the tv volume on 20 to mask is "within spec".

People have posted numerous times that Samsung will fix various video issues. But when it comes to "the buzz", they are likely to turn a deaf ear.
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post #355 of 994 Old 09-28-2010, 05:30 PM
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Samsung states their PDPs only require service if you can still hear a buzz more than 15' away which is ridiculous:

http://ars.samsung.com/customer/usa/...PROD_SUB_ID=0x

What is even more ridiculous is that with mine and others you can still hear the buzz at this distance and even further away but there doesn't appear to be any fix. I even tried an expensive power conditioner for the heck of it but it made no difference at all.
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post #356 of 994 Old 09-29-2010, 07:23 AM
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Originally Posted by prerunnerv6 View Post

If you are within the return period and the buzz is too much, go to the retailer for a return or exchange. Samsung is likely to be of little help when it comes to abnormal buzzing. This is year 2 of the buzzing problem and hundreds of posts later there is still no consistent fix from Samsung. Even when a person gets a service person honest enough to acknowledge the buzz (above normal plasma hum) the service person will call Samsung and be told it is "normal" or "within spec". Buzzing that takes you being 15 feet away with the tv volume on 20 to mask is "within spec".

People have posted numerous times that Samsung will fix various video issues. But when it comes to "the buzz", they are likely to turn a deaf ear.

Deaf Ear. LOL like that! I purchased my 58c7000 10 days ago and noticed a buzz. I ran everything through my Furman power conditoner and it help alot but still feel I should not have to go through that just to get a buzz level down to a point to watch my TV. I went to hhgreg last night to either exchange or go with another model. The first guy at the desk noticed I had the extended 3 year warranty and thought it would be best to try using that first to see if it could be fix if not he said Samsung would replace it. (I was not going that route just to lose my other option of returning it in 14 days. Plus I should not have to use my warranty within a couple of days of owning product.) The manager came over and asked me how he could help and when the staffer explained situation and told him what he suggested the manager said NO we will take it back and make it right. He stated this was the second one returned THAT DAY for buzzing issue. He was calling Samsung to voice their concern of why so many of these TV's are being returned. He suggested I go with the Panasonic G25. Anyone know how this model compares to the Samsung in picture?
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post #357 of 994 Old 09-29-2010, 07:59 AM
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He suggested I go with the Panasonic G25. Anyone know how this model compares to the Samsung in picture?

That's a downgrade. If you're getting the Panasonic might as well get the VT25 which will require more cash but at least you're keeping the same level of a 7000/8000 Sammy.

And the G25 only goes up to 54" I think...
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post #358 of 994 Old 09-29-2010, 08:16 AM
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Quote:
Originally Posted by el pablo View Post

Samsung states their PDPs are only require service if you can still hear a buzz more than 15' away which is ridiculous:

http://ars.samsung.com/customer/usa/...PROD_SUB_ID=0x

What is even more ridiculous is that with mine and others you can still hear the buzz at this distance and even further away but there doesn't appear to be any fix. I even tried an expensive power conditioner for the heck of it but it made no difference at all.

Yeah I sit 18' away and can still hear the buzz. It's actually quieter if I put my head within 6" of the TV, but once I get to like 2', the buzz is noticeable as far as my room will go.

I've tried ferrite cores, cheater plugs, different outlets, isolating power cords, different surge protectors, etc. I haven't bought a power conditioner yet, but I've read quite a few people saying it does nothing, so I don't want to waste my money.

My only solution has been to not sit dead center. I mounted the TV so the bottom bezel is right at eye level. Definitely more enjoyable this way.
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post #359 of 994 Old 09-29-2010, 08:20 AM
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Originally Posted by BSoares View Post

That's a downgrade. If you're getting the Panasonic might as well get the VT25 which will require more cash but at least you're keeping the same level of a 7000/8000 Sammy.

And the G25 only goes up to 54" I think...

Thanks! What TV would someone recommend that offers the same or better picture quality as the 58c7000 or do you think I should take a shot at replacing the Samsung with the same model? Thanks
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post #360 of 994 Old 09-29-2010, 04:10 PM
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Well I got good news and bad news about my 58C7000 today.

Samsung tech came out to replace the panel because of a dead pixel. He had the tv all taken apart, I help him get the new panel upstairs so he can swap it. We pick it up to align it into the tv frame. Oops, no go. It's a 63" panel, in a box from Samsung labeled 58" lol.

He says call up Samsung and tell them you want a new tv right now cause obviously he can't fix it today, and this is the 2nd service call, of which I've had to leave work early twice and I'm working 6-7 days a week.

So after a lot of hassle and being put on hold countless times, Samsung finally caved and agreed to send me a brand new tv and exchange it for my current defective one.

Hopefully I don't get a buzzer this time, and no dead pixels.
RockinZ28 is offline  
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