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Toshiba 34HDX82 Picture Burn-In Problem? Help! - Page 2  

post #31 of 184
Quote:
Originally posted by funky327
Tim,

Unfortunately I do have hardwired fluorescent lights in my kitchen and since I live in an apartment I can't really experiment by taking them out. I'm curious if anybody else experiencing these problems have halogen or fluorescent lights too.

Thanks,
Eli
If you can isolate the breaker the lights are on, maybe you can turn it off. There shouldn't be any power to the transformer anyway when the lights are turned off (I think), but this might show you something!

Tim
post #32 of 184
I use the grey side bar 4:3 mode for some programs because the picture quality is better in that size from some sources. For higher quality 4:3 programs I sometimes use the TW1 mode. However most programs I watch nowadays are widescreen HDTV programs - CBS and ABC have most of their primetime programs in HD, even NBC and WB have a few now too. I have a few programs that are not in HD but are in widescreen so I can use TW2 mode for them - Enterprise, Angel, Birds-of-Prey. Of course I also watch a lot of widescreen DVD movies and I use FULL mode. So I don't really have to bother with 4:3 programs very much.
post #33 of 184
Quote:
Originally posted by bryanb
lpw,

I have what looks like a burn in line down the center of my hdx82 too. I was going to exchange it this weekend, but now I'm not sure.

There's basically a bright 1" thick line running down the middle of the screen on mine - very noticable on bright backgrounds (white, green etc.) Does this sound like what you have?

Bryan
bryanb-
what is your contrast setting? I think the higher it is, the more noticable the vertical line. Mine is set at 60.
post #34 of 184
auburn97,

Mine's at 60 too.

I stopped by the Good Guys last night and the salesman seemed to think since we are all having the problem it may just be a bad run of TV's. He claims it's common at one time or another for such a thing to happen to any brand of TV.

He is more than willing to let me exchange it, although I'd think we are still dealing with the same "run", since the set is so new.

Bryan
post #35 of 184
I am assuming this could be a problem with the TV producing 480i signals, since I don't see the vertical line when viewing 480p dvd images and others don't have a problem when viewing 480p and 1080i images ala HD signals.

Any thoughts on this?
post #36 of 184
lpw,

Were the service people able to help?

Bryan
post #37 of 184
Thread Starter 
Quote:
Originally posted by bryanb
lpw,

Were the service people able to help?

Bryan
Bryan,

The tech guy came last night and recogized the problem right away. Unfortunately, he says that there is no direct fix for this that he knows of. His english wasn't very good so I had a hard time understanding him, but he has over 20 years of experience in repairing and designing TV's and he told me that the line in the middle can be caused a number of things inside the TV and is not necessarily due to one faulty component. He says he's seen it in with Sony TV's and other brands too, so it's not Toshiba specific. He put up a red, green and blue screen, and the line was visible on the red and green screen, but NOT on the blue screen.

All he can do now is report back to Toshiba to see if Toshiba has a fix for it because there was nothing he can do. That was pretty disappointing for me to hear.

As for the dark regions on the left and right side of the screen, he says that is inherent in all flat screen TV's since the tube is not perfectly flat and these darker areas on the sides are caused from different pressure of the liquid or filler material between the screen and the tube. Don't quote me here, I didn't quite understand him very well. He opened up the back and adjusted the focus, which helped reduce the darkness somewhat, but only slightly. I wasn't too concerned because it is the middle line down the center of the screen that is most noticeable and distracting and he had no fix for that.

Anyways, I'll wait to hear back from Toshiba next week, but I'm not hopeful since the tech guy didn't seem to think it's a flaw, although it clearly is to me.

lpw
post #38 of 184
Quote:
Originally posted by lpw
Bryan,

The tech guy came last night and recogized the problem right away. Unfortunately, he says that there is no direct fix for this that he knows of. His english wasn't very good so I had a hard time understanding him, but he has over 20 years of experience in repairing and designing TV's and he told me that the line in the middle can be caused a number of things inside the TV and is not necessarily due to one faulty component. He says he's seen it in with Sony TV's and other brands too, so it's not Toshiba specific. He put up a red, green and blue screen, and the line was visible on the red and green screen, but NOT on the blue screen.

All he can do now is report back to Toshiba to see if Toshiba has a fix for it because there was nothing he can do. That was pretty disappointing for me to hear.

As for the dark regions on the left and right side of the screen, he says that is inherent in all flat screen TV's since the tube is not perfectly flat and these darker areas on the sides are caused from different pressure of the liquid or filler material between the screen and the tube. Don't quote me here, I didn't quite understand him very well. He opened up the back and adjusted the focus, which helped reduce the darkness somewhat, but only slightly. I wasn't too concerned because it is the middle line down the center of the screen that is most noticeable and distracting and he had no fix for that.

Anyways, I'll wait to hear back from Toshiba next week, but I'm not hopeful since the tech guy didn't seem to think it's a flaw, although it clearly is to me.

lpw
My TV repair guy hired by best buy for their service plan was even lousier with service. He looked at me and practically criticized me for being a perfectionist. He said my magnetic imperfection (areas a mild pinkish tint) is very common and there's nothing to do. He then went on to quiz me on what i knew about television, hdtv standards, internet protocols, etc. He spent 5 minutes with the set and spent another 1.5 hours BSing.

His opinion on fine tuning geometry and other settings in the service menu was ridiculous - basically saying that these tv's are already fine tuned at the factory and need NO adjustment. What an idiotic thing to say. He said I should give up and get a plasma if I want perfect geometry. I think I made the guy feel insecure that I was methodically capable of adjusting my service menu without screwing up the set. He then went to knock ISF guys as money making scoundrels.

Sorry, but we all know large improvments can be had with geometry adjustments.

The guy definitely didn't consider opening the TV. Perhaps my problem is a focusing issue as is yours.. I don't trust the results.

I'm figuring maybe my wife and I will move to San diego next year, so the bestbuy tv service plan people might be better there. I'll give it another shot. Its a 4 year plan thrown in on a 6 month old floor model at nearly half price. Its amazing how many of these guys genuinely KNOW very little. I don't know how they can motivate themselves to get up everyday and fake it.

Don't buy a service plan if you expect service. I figure it'll take care of me if there is a broken power supply! My fingers are crossed.
post #39 of 184
Thats why I adjusted my 34HF81 set's geometry all by myself! It took hours but I think its pretty close to perfect now. I used the AVIA DVD test patterns.
post #40 of 184
Incidentally, Home Theater magazine is doing a "Face-Off" of 34-inch widescreen HD-ready TVs in its January 2003 issue (out in about 1 month). If the Toshiba was submitted for review, it will be interesting to see if the reviewers make mention of the vertical bar we see and what could be the cause of it, and perhaps a way to get around it. Unfortunately, by the time the article comes out, I'd have to pay a 15% restocking fee if I returned it to Best Buy because it would be past the 30-day return policy.
post #41 of 184
but I haven't been on the forum in awhile..been pretty busy. Incidentally, I just did that white screen test, and I DID NOT see a line down the middle.. though I did see a little of that different discolorization on some of the sides. I have the 34HD82.
post #42 of 184
I've had my 34HDX82 for alittle over a week and I also have noticed what looks like burn in on each side of the screen. It is only noticeable on pale colors and on some shades of green. I had a Toshiba tech out today, but he wasn't sure as to what is causing the problem. This was his first time working on this particular model. He said he needed to do some research on it and would be in touch with me in a few days.

When I hear from him I'll let you know what he has to say.
post #43 of 184
I commented on the fact I noticed both the discoloration on the sides and the faint line running down the center of the 34hdx82. I have noticed the problem of discolouration on all the units I have checked (3). In addition I went to a store and using the Avia amber color field found the vertical line phenomenon even more pronounced on the demo. In fact not only was there a vertical line running down the center, but the left and the right side of the screen didn't even match, one side being significantly lighter. A panasonic 34" was right beside it running on the same DVD input and it displayed neither phenomenon. I am loath to exchange mine in light of the fact I could just as easily get a worse version and I hesitate to shell out for the panasonic since it doesn't have a DVI input. It is interesting that Home Theater Magazine did not mention the problem. They either didn't feel it was an issue or, more likely, Toshiba sent them a pristine version of the set. This is why, in theory, Stereophile insists on testing a random sample off at least a second runproduction line, and even their results are sometimes suspect.
I am curious what Home Theater has to say and will send them an email but I don't expect an explanation...... unless they get a ton of emails. This is exactly the sort of thing they are supposed to be reporting on and the public should let them know it. An article pointing out a design flaw is far more likely to get the attention of Toshiba that the complaints of a few "nit-picky" customers. Of course if they're in bed together the Home Theater article is not so surprising!!! :mad:
post #44 of 184
So I guess there still are no answers to the problem with the line down the center of the screen and the discoloration on the sides? I rarely notice the problem, but now that I know it is there, I am not happy. I do not want any defects!

I need to make a decision this week about keeping or returning the TV. I thought about replacing it with the Sony, but it has its own problems.

I can think of better things to do with $2000 than to buy a defective TV. I am strongly considering a refund and waiting a couple of years. I wish I had found this site before making my purchase.
post #45 of 184
Quote:
Originally posted by scotty12321
So I guess there still are no answers to the problem with the line down the center of the screen and the discoloration on the sides? I rarely notice the problem, but now that I know it is there, I am not happy. I do not want any defects!

I need to make a decision this week about keeping or returning the TV. I thought about replacing it with the Sony, but it has its own problems.

I can think of better things to do with $2000 than to buy a defective TV. I am strongly considering a refund and waiting a couple of years. I wish I had found this site before making my purchase.
from what I understand all of these large flatscreen CRTs generally have these sort of purity issues just due to inherent limitations in the technology. (i don't know about the flat line though)

Besides projection sets, which I generally consider annoying - the next step up is a plasma 720p (1024x768, even though that falls slightly below 720p horizontally) native capable set. But then you're at the $7000 price level.

I can't wait until 1920x1080 plasmas come out - it'll push the price of 720p capable plasmas down to a more reasonable level. Next year or two are times to hope!
post #46 of 184
I have only had my 34HDX82 for a few weeks, and I watched hockey tonight, the lines are very noticeable on the light background. I have not noticed them while playing XBOX through my HD 1 inputs, and I haven't bought my HD decoder yet. I am only viewing OTA and Directv trough s-video. I did the white screen test and I can see the lines in the center and on the edges. I plan on buying a STB in a few weeks, Am I going to see these lines through the other inputs in HD? What can we do about this, sounds like a widespread problem. This tv will be my gaming tv, but I will watch alot of sports on it also, thus this will be annoying! Any follow-up? If it was only an interlaced problem, I probably wouldn't worry about it.
post #47 of 184
Well after some more testing last night, I'm ticked. It is clearly visible on all inputs, haven't tried HD yet. I put in Rallisport Challenge (480p) on my XBOX and did several different races, you can really see it during ice races, and desert ones to an extent. The reason I bought this tv is for my new rec room downstairs, for sports and gaming. So now what??? Where do we go to get a real fix for this?
post #48 of 184
Hi all, I'm a Sony 34XBR800 guy so don't flame me, but I was considering a Toshiba at one time. I ended up going with the Sony simply because of the look of the TV (looked bigger because of the side speakers and therefore gives an optical illusion that the screen is larger) and because of the on-screen menu (to me it flowed a little better and the things one could tinker with was a bit more extensive than the Toshiba). I started looking at Toshibas after receiving my first XBR. I noticed small dark patches near each of the four corners (on my Sony) and had a tech come in just to tell me that nothing could be done about it. I went in to some of the electronics stores to see if the same problem existed on Toshibas, Phillips, Zeniths, etc. In researching this, I did see the white line in the center on the Toshibas and occasionally the lines or shading on the sides as well. The other candidates didn't qualify because they did not have DVI or else Phillips might have gotten a harder look. I ended up exchanging my XBR with another XBR and while on a white screen the image isn't absolutely perfect, the dark patches are gone and I am happy. On my new (and final) set there is a slight "line" on the left side of the picture -- it isn't so much a line as it is a thin, straight area of slightly darker (practically imperceptible) coloration that is only noticable on white or really light backgrounds; there is also some slight, very slight, areas of the same shading I saw on the previous model. I visited the same stores to check on other Sonys and they all had some evidence of this -- I'm guessing the guy who said it was inherent in all flat-screen TVs may be on to something. I am having another problem with the Sony, a white line/wave traveling from right to left on all 1080i sources (wasn't on the first set but apparently is a problem with most of the XBR models) but a fix has been found, so they say, and my tech is coming on Dec. 31 to hopefully fix it. I bring all this up as a way of showing that all of these sets have problems. Take a look at a regular TV and it is amazing what problems you'll discover. I had watched my mom's TV for days on end and never noticed this wide, three inch band of discoloration on her set until I started scrutinizing my own new set. I was at the movies and was paying particular attention to the screen image -- the image was weak at all edges and I swear to god there was a line of discoloration on the left side of the image, just as imperceptible as mine, but there it was. So either my eyes have a line down the left side of them or there just isn't such a thing as a perfect image. Plasmas? Maybe, but I've heard there's a burn-in problem. LCDs? Maybe, but their HD sets are still in the 8-10,000 dollar range and there's no guarantee that they'll be perfect either. Therefore, my advice is, if you're still in the window where you can exchange your set for another Toshiba (keep trying until you get one you can live with) or a Sony, do it; if not, try to remember that even a $100,000 car will have some defects and try to enjoy the hi-definition television and dvds. Hope this puts things into perspective for you all.
post #49 of 184
Slightly darker band on the left side of the screen. Is this just something we all have to live with??
post #50 of 184
Strange. I have a year-old 34HF81 with no noticeable dark bands with a white screen test pattern from an AVIA DVD. So not all of the Toshiba units have that problem.
post #51 of 184
MY 34HF81 just returned from the shop with the suggested tube replacement. Here's the news...

It had nearly the same pattern of discoloration (blue on left side, pink on lower right) but the blue was more and the pink was less. I went along with it for a while, and right before the TV tech's were leaving, I asked them if they could try a THOROUGH degaussing.

It RESPONDED! The discolorations moved. They didn't disappear, but it seems the new problem was fixable with an electromagnetic coil. Perhaps this discoloration was from sitting on the truck? The first degaussing from the first TV Tech's visit didn't work, but did I mention he only spent about 5 seconds doing it? The second tech worked on pulling away the discolorations from the side - ETC ETC. Took a few minutes.

Now after a few days, things look much better, probably with the help of the set's internal degausser.

Honestly, I really wonder if they replaced the tube. These guys never earned my respect as reputable or professional. Perhaps a tube replacement was never needed, but I wasn't the one to suggest it. I only still think they actually worked on it and replaced it due to the fact that the color balance is COMPLETELY different. Originally, it looked good on medium color temp - now its TOO warm. I have it on cool color temp now.

Does that sound right? Would a new tube look more natural looking on cool color temp? In other words, would 6-9 months of being on at Bestbuy as a floor model make the RED on the shadow mask weaker ? Things look great now. The service menu was NOT reset!! It still retained all of my original overscan settings - Height, Width, geometry, etc.

This to me suggests a physical difference... I haven't check the color options in the service menu yet, though. Perhaps they did change those. I recorded all of the system defaults a while back, so I'll eventually get to browsing it to see if what I see is just a result of changed defaults or an actual tube.


I'm sorry, but am I crazy or are TV techs as a group generally not very excited to be helpful and/or friendly? Maybe its this company. God I hate the east coast.
post #52 of 184
Quote:
Originally posted by scriabinop23

Does that sound right? Would a new tube look more natural looking on cool color temp? In other words, would 6-9 months of being on at Bestbuy as a floor model make the RED on the shadow mask weaker ? Things look great now. The service menu was NOT reset!! It still retained all of my original overscan settings - Height, Width, geometry, etc.
I'm replying to myself. My last thought was perhaps they just had the voltage on the red beam set a little higher after they replaced things. The reds don't look over saturated. Everything DOES look balanced.
Is this possible? So it appears to be a UNIFORM shift in color temperature.
post #53 of 184
Greetings,

Im not sure of a fix for the issues you are describing, however as scriabinop23 has witnessed degaussing has fixed the problem...then go to town and give it a try!!! (or perhaps it was the tube replacement??)

As for the Toshiba 1" white vertical band on the center of the screen, it is on MOST of their sets even there RPTVs (as it is on my 65H80). Ive not heard of a fix for it, however setting your white level appropriately will minimize it.

As far as color temps go and red in the masking this is all a function of gray scale. Out of the approximately 300 sets I have worked on only one has had a good gray scale from the factory, and it was brand new so after 100 hours of phosphor burn it would be visibly off.

Regards

Gregg Loewen
www.lionav.com
post #54 of 184
does the manufacturer generally do a phosphor burn in before a tube gets to the customer (for sake of 'proper' settings for the end user)?
post #55 of 184
The tech called and wanted to take the tv into the shop...said he would have it for a couple of weeks. I told him to wait until after the holidays. I'm not sure that I am going to let him take it though. It seems that the more the tv is used, the more the dark areas on the sides seem to go away. As of today, they are almost completely gone. I have no idea why this would be...any comments?
post #56 of 184
My 34HF81 tube replacement took about 10 days. Actually, I believe it was 2 days worth of work, and about 7 days worth of delivery scheduling difficulties. Ask if they can take it on a monday and finish it on a Friday. :-)
post #57 of 184
Scriabinop23:

Did the replacement tube completely fix the banding on the left/right side of the screen?? That seems to be the only problem I'm having, and someone replied to the thread stating that perhaps after a short period of burn-in time they'll go away..

Thanks
post #58 of 184
As of right now, I think I'm going to just keep the original tube. It seems to be fine, if the dark bands on each side return then I'll let them take the tv. For whatever reason the bands are gone now...can't explain why they aren't there now, I haven't done a thing to the set since the tech was here.
post #59 of 184
I purchased the 34HDX82 less than a month ago ... I have the same problem. I have a service tech coming out on 12/26 to review the issue. I also sent and e-mail to Toshiba Tech Support - no answer yet. I plan to call them after Christmas. Everybody that has this problem should also call Toshiba Tech Support and demand a fix. That approach seems to work well for Sony owners. I'm seriously considering swapping for the 34XBR800. I might be able to put up with the side-shading, but the vertical line problem is so irritating to me that I don't think I can live with the issue if there's no fix on the horizon. Adjusting white levels did not have any effect - still there plain as day.
post #60 of 184
Quote:
Originally posted by Tungsten78
Scriabinop23:

Did the replacement tube completely fix the banding on the left/right side of the screen?? That seems to be the only problem I'm having, and someone replied to the thread stating that perhaps after a short period of burn-in time they'll go away..

Thanks
Not completely fixed but its a little better. Who knows... i wonder if they really replaced the tube (these guys weren't exactly verbose about the work they did... ) I give up for this year. its good enough for my eyes. PS I have NO noticeable vertical line on my 34HF81. Maybe a 'feature' of the new sets.

On the other hand, on a few certain channels with a lot of multipath, my toshiba's internal tuner picks up a ghost line going right thru the center of the set vertically. But never on DVD, RCA DTC100 HD tuner, or satellite sources. Only some analog tuned ones on the TV.
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