Official Panasonic GT50 Series Discussion Thread [No Street Price Talk] - Page 256

Its funny that you say that. Perhaps my posts have been misleading. If so I apologize. I was just discussing the merits and value of avr room correction vs a manual calibration. I never said that I calibrated my system. While I do have some knowledge of calibration I do not have the equipment.That is why my comments have been general comments and not the merits of a particular type of software or piece of equipment. I do however have friends who have both the knowledge and the equipment. One of them makes money by installing and calibrating high end av systems in peoples homes on occasion. As well as computer equipment and general troubleshooting. This is where I learned that many of the avr room correction systems are not all that the public is led to believe. He is the one who calibrated my system. For free, of course.

Panasonic Plasma Buzzing Whining Sound 2011, 2012 Permanent Repair Fix

https://www.youtube.com/watch?v=4YWSerwlWjM

Most of the fixes on youtube for plasma buzz are tightening screws inside, not on the back panel.

The owner of this VT30 recorded the buzz coming from the back of his set. Note the first comment by MrJesseistheman. https://www.youtube.com/watch?v=j6_6kTyt01I

The first comment is similar on this video for buzz on an S30 https://www.youtube.com/watch?v=tp4ccBdHWdE

There are also several videos of ST50s with buzz.

Okay, got ya.

My GT50 has horrible burn in and the buzzing is getting worse.I am sitting here watching sports center and I can hear the buzzing from 11 feet away.I emailed Panasonic and they told me to call them so I can speak to a rep.I bought theTV last May from Amazon.Hopefully I can get this resolved.

How long have you had ir and how do you think it got so bad?

The ir is bad from the kids watching the Disney channel and smart vierra is burned in and the buzzing is getting worse

The Smart Viera logo from when you turn on the tv?

IR can look like burn-in if almost all your TV watching is on the same channel.

How long ago did you first notice that you had IR, and what were you watching when you first notice that you have IR?

Burn in isn't covered under warranty so I wouldn't expect Panasonic to do anything. If anything they are just going to try to give you ways to help alleviate it. Other then that there is not much you can do.

Thank you very much! I'm really pleased how the room worked out. The desk was basically immovable so working around it was a chore, but it turned out nicely. I really love that map picture too, it used to be right where the TV was and the couch used to be underneath it with a coffee table. Was a nice sitting area, if I was tired of sitting at the desk I could move over to the couch, work and see my old TV on the wall across the room (behind those pictures). Now with the TV and the fantastic off-center viewing of plasma, I have everything right there.

I can still hear buzzing on a mostly bright screen, but it isn't too bad, seems like less than before. One thing I've started to wonder is if the electrical feed could be a culprit. I live in a building downtown that was built in 1929, retrofitted for condos about 30 years ago. The wiring and electrical work is not great, I've redone my kitchen and master bath myself including electrical work and it has been a major pain. Static electricity is also huge problem in the entire place. I am tempted to get one of those Monster/APS/Panamax power strip/conditioners to see what happens. If it doesn't help with buzzing, oh well, I need a power strip/surge protector anyway.

From a gaming perspective, I've yet to use any setting except my custom settings for TV and bluray. I haven't noticed much input lag yet and that includes online gaming. I tried game mode a few times, it wasn't bad but until I start noticing input lag, I'm keeping it on the best looking settings. I've yet to have any significant IR that was visible during regular viewing or that was even visible on slides after a couple minutes.

Agree about the Netflix app, I have used it some just to test and it is just horrible quality. Meanwhile the Netflix app on PS3 or 360 works great.

Thanks for this, sent Amazon an e-mail with the PaulsTV coupon link to see if I can get another $100 back.
Edited by HuskerPower25 - 3/9/13 at 3:28am

Just a quick note for those this might benefit. From the advice of a friend of mine who is a HT enthusiast

I have from the moment I started investing in AV equipment purchased a smart UPS dedicated to

powering and protecting my TVs. The power where I reside is ok for the most part but almost every day

at least once a day I hear the UPS click on from a minor brownout. So to wrap up I recommend

to everyone wanting to help protect their units from brownouts and surges invest in a reasonably

sized UPS (around 700-800VA, more if you can afford it) not just a surge protector. A SMART-UPS

is preferred but a Back-UPS, although not as configurable, would provide alot of protection. Brownouts

tend to cause more issues than surges and I find not many people are aware of that fact.

No I do not work for APC

Edited by rypaul - 3/9/13 at 5:56am

2000 hours cinema picture mode conrast=100 mll 0,0022cdm:cool:

I dont remember when I first noticed the burn in.My kids watch the Disney channel a lot and mickey mouse's ears are bright whit in the bottom left corner.The overall PQ has steadily declined since new.The buzzing during bright screens(white)is really annoying.I am beginning to second guess buying a plasma,only because my kids watch one channel too much and the buzzing is ridiculous.
I was watching Battleship on HBO this morning and there was a lot of distortion during high speed action sequences as well.

I am starting to wonder if your TV is having power issues. Motion artifacts and PQ degrading sounds like something might be

seriously wrong with your unit.

Pioneer Elite VSX-33. It is great and I love it. I believe you can find it new for a great price. I paid $550 BNIB for mine. I also got a Panamax M5300-PM at a great deal. Just saying because I see several complaints here and other threads but my system and GT works great with no issues......may be because I get clean power???

I would have to agree with Randy as I experience what he is stating. Maybe I have a fantastic GT or the fact that I use a Panamax m5300-PM as my power conditioner. I really don't know but I am very happy with my system.

I am starting to wonder as well about the effect dirty power might have on these units regarding the buzzing and other strange issues. That is part of

the reason I made the UPS suggestion earlier. Using a line conditioner as you do is a great solution too. Like you my TV is real quiet even in dead

silence. I have to go behind the unit to hear the buzz even on a white screen

I'm not really sure as I am not an electrical engineer just a guy that does research on what I will be purchasing. I buy it, hook it up and enjoy it. Simple. I thought the power conditioner was a smart decision to protect my more substantial investment. I like the UPS suggestion also but think the conditioner is a better idea for this type (AVR, TV, BD, GC, etc) equipment. Both are better than a power strip.

That's why I mentioned the Smart models because the ones I have had experiences with offer a type of line conditioning. So you get protected from

surges, brownouts, blackouts and as a bonus your current is cleaned up.

Due to the length of the 60GT50's power cord I'm not able to plug it into my Panamax. I have it plugged directly into a wall outlet and I do not have any buzzing. When I was considering a new plasma a few years ago the buzzing issue with the Panasonic plasmas concerned me. I posted several times in various Panasonic plasma threads asking those without buzzing issues if they were using a power conditioner. I received a number of replies and some were using power conditioners and some were not. The same was true for those that had buzzing issues as some were using power conditioners and they did not stop the buzzing.

I actually wonder how well power conditioners work especially ones that are fairly inexpensive. I wouldn't be surprised if the lack of clean power is the cause of the buzzing issue with plasmas. But I have never seen anything posted on AVS that supports that as a possible cause.

Bill

Oh to be clearer I am not saying that the buzzing is directly caused by dirty power. What I am wondering is if over time

having experienced bad power or brownouts that a component in the TV gets damaged or strained which then

causes the buzzing to become more pronounced. Sorta like a compressor in a refridgerator after

a few brownouts. What led me to this line of thinking was the fact that some were saying the buzzing

increased with the age of the TV. In the end it might just be some lazy person on the production line

who could not bother to turn a screw on the power supply just one more time on a few thousand TVs

The benefits of using a power conditioner have been debated ad nauseum in every AV site that has ever existed. Personally, I think it is totally dependent on everyone's individual location combined with the total load of other devices within their location. No one's power is so clean that a good conditioner won't provide some improvement. Depending on your situation, that improvement may or may not be detectable or it may be significant.

With that in mind, I will suggest that no one's power is so dirty that the internal power conditioner within the GT's power supply is being overwhelmed to the point that it creates buzzing.

Bill, how about a longer power cord.

Good point Bill, But it just gives me piece of mind and while it may be nominal it is still there somewhat! I actually had some spare cash laying around and got the, what I consider good to better, Panamax M5300PM for $225 BNIB. Not sure if it really works but the THEORY is there! Plus it makes my A/V stack look cooler!!!! LOL

What about a longer aftermarket power cable?

Why not use something like this?
http://www.amazon.com/gp/product/B002CGRLFM/ref=noref?ie=UTF8&psc=1&s=lamps-light

A longer aftermarket cable may be hard to find. How much length does he need?
Edited by Bond 007 - 3/9/13 at 10:54am

Not really.

Monoprice

The first issue with power is protection from surges. Then, if blackouts and brownouts are common, an uninterrupted power supply with surge protection is the next level. As for power conditioning or cleaning, I'll leave that to the Gods.

All of those will work on the GT, ST? I wouldnt mind having one a couple feet longer.What gauge? 18, 16, 14

I definitely need to get a longer power cable so I can plug the 60GT50 into my Panamax 5100EX. I couldn't believe that the PC that came with the 60GT50 was only about 5' long . I agree that power conditioners are a positive for various reasons. But I'm just not sure how well the lower priced ones actually clean up the power in ones house. I consider the 5100EX to work well but I feel it is a lower priced unit.

Monoprice is the route I was going to take. Great suggestion . I'm done with fancy aftermarket PCs, been there done that .

Bill

I don't own a Panasonic, but I assume the power cord is standard. You just have to buy the same type connector. In general I would use a heavier gauge as the cord got longer. What's the gauge on the Panasonic cord?

If I ever take our display off the wall again, I'll probably replace it's power cord with the shortest one available.

EDIT: The power cords at Monoprice have standard PC type connectors. Our display has been on the wall for over five years and I can't remember if it's a standard PC connector. It probably is. It also seems to be a heavy gauge cord. Details.
Edited by htwaits - 3/9/13 at 1:19pm

Someone that didn't know about Monoprice!? That's a bit of a surprise. Sometimes you get more then what you pay for peeps!

I don't think the power cords that I linked to will work unless the Panasonic cords have a PC type connector. You can click through on the image of the cords and see exactly what the PC type connector looks like. Monoprice has a chat option where you can ask about the correct type connector.
Edited by htwaits - 3/9/13 at 12:10pm