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2007 Samsung HL-Txx76 Owner's Thread - Page 63

post #1861 of 1965
Quote:
Originally Posted by sksahai View Post

All:

Samsung repaired my white dot issue out of warranty as a one time courtesy repair. However, a few days later, we noticed a "white shadow" against the black background that pops up when an input turns off, or when you switch inputs. It is in several spots on the TV.

I tried to capture a pic using my handheld camera, but it was shaky due to the exposure time. I have posted the pics here>

https://picasaweb.google.com/TheSaha...eat=directlink

https://picasaweb.google.com/TheSaha...eat=directlink


Does anyone know what might be the problem?

I am going to try and take better pics and send them to the repair company.

Sunil


My TV has done that since the first day I bought it! Originally that "pill" shape was only in one spot, and only visible on a dark scene, so we lived with it. After the repair those spots are EVERYWHERE and much smaller. It changes size like an aperture is opening/closing.
post #1862 of 1965
Hi everyone.

I have a bit of a detailed question, and I'm hoping some of the DIY/Tweaker types have an answer for me.

I own a HLT5076SX - the 1080P slim chassis (circa 2007) that I bought as a floor model from Circuit City.

My dad gave me his HLR5067WAX because it kept "shutting off." I had replaced the lamp in it approximately 2 years ago, and discovered that I'd put the cover back on incorrectly with the safety switch in the wrong position. When the cover heats up it trips the protection circuit and shuts the TV off. After that, it would only periodically shut down. He bought a new set and said I could take the old one. I hooked it up and the picture is very, very dim. So, once again I am going to replace the lamp.

As for my HLT5067SX, I love the set. However, I encountered the dreaded white dot issue. A few calls and Samsung sent someone out free of charge to replace the DMD board. I noticed after the repair that my lighter colors were EXTREMELY saturated. So much so that if you were looking at a light area there was no detail at all. Yellows were really bad (this was during football season, to put it in perspective, the Green Bay Packers' helmets looked like yellow blobs.) Everything else was really, really crisp. I thought that maybe there was a burn-in cycle or time frame and that the issue would clear up. It did, to a degree, but is still unacceptable 10 months later. Another side effect is that when the screen is black with just the lamp on there is what appears to be a speckled pattern. Almost like sunshine through a canopy of leaves. When the TV goes to a brighter scene these spots will increase in size and then disappear as the scene comes to full brightness.

**edit** - see http://www.avsforum.com/avs-vb/showt...8#post20324018 for pictures.

After all this lengthy explanation, my question comes down to this -

Are there common parts between these two sets? For instance, could I swap the color wheel from his set into mine? Etc.

I appreciate any help. I also posted this in the HLR thread.
post #1863 of 1965
nice to see this thread still going. Just thought I'd check in.

so far I am still on the original lamp and I bought this TV the week they came out. I have to say that I am really happy with it. I did have some minor alignment issues that I cured with a small non visible shim under the right side. Also had the dust on DLP convex mirror thing I made a thread about. I will probably clean this again at some point, but the PQ is still great and newer TVs don't seem to be much better.

good luck to all of those with problems and I hope it works out.
post #1864 of 1965
I have come across an interesting situation. I am visiting my parents house and noticed that the color on their HLT5675S is very off, almost has a "blotchy" look to it. They said they have changed the lamp a few times and that told me something was off since they dont watch it enough to warrant a few lamp changes. After some research I thought it could be a color wheel problem. I bought one online and installed it today. Was pretty simple, didnt take too long.

It did fix the coloring issue, however now there is a solid black bar about an inch wide on the right hand side of the screen, I have no idea how to fix this problem. Its as if the lamp has shifted position to the left, for example, instead of displaying "HDMI" it only displays "DMI" with a little bit of the H being on screen.

I went through the menus and couldnt find any sort of screen positioning setup so then I tried the service menu and that is displayed too far off the screen for me to know what it says so I left that alone. I then took apart the tv again and saw a small dial near the display lens of sorts. So I mess with that dial a bit and learned two things: 1. If i rotate the dial far one way I can minimize the black line, however things like "HDMI" are now completely off the screen. So I rotate it the other way and am able to get the words "HDMI" to dislpay fully...however the black line then gets larger. Very strange. After numerous hours of just fiddling around I am on the verge of giving up.

I know this is a very strange circumstance on an older tv, but does anyone have any suggestions on what to do? Thank you for your help!
post #1865 of 1965
Well it seems like my DLP (HLT5076S) has pulled a "Samsung". I can see why they stopped making them.

So here's my situation:

Plug in the tv and it immediately tries to start up (no standby). Lamp lights up, TV chimes, color wheel starts, etc. but I get no picture. The lamp light just sits and blinks for about 30 secs then stops. The TV seems to be receiving signals from the remote (LED on the tv blinks if I mash buttons on the remote). Occationally, I can get the TV to start properly if I keep unplugging the power but now that doesn't work either.

I've read that since it's not going into standby mode first should be a clue as to the culprit but I'm at a loss as to what part is defective. I've just replaced the lamp too so I know that it's not that.

Any ideas guys?
TIA
post #1866 of 1965
It sounds as if there might be something going on with your power supply. Now, if that's officially what's wrong I don't know. However, in my experience with electronics, a power related issue is usually going to be traced back to the supply or to some form of controller for that supply.




Quote:
Originally Posted by ahhell View Post

Well it seems like my DLP (HLT5076S) has pulled a "Samsung". I can see why they stopped making them.

So here's my situation:

Plug in the tv and it immediately tries to start up (no standby). Lamp lights up, TV chimes, color wheel starts, etc. but I get no picture. The lamp light just sits and blinks for about 30 secs then stops. The TV seems to be receiving signals from the remote (LED on the tv blinks if I mash buttons on the remote). Occationally, I can get the TV to start properly if I keep unplugging the power but now that doesn't work either.

I've read that since it's not going into standby mode first should be a clue as to the culprit but I'm at a loss as to what part is defective. I've just replaced the lamp too so I know that it's not that.

Any ideas guys?
TIA
post #1867 of 1965
We recently had to get Sears to fix our not quite three years old Samsung HLT-5676s DLP TV due to it having a number of white dots on the screen. Samsung said it was not part of the recalled sets due to defective DLP chips so the repair cost us almost $600.00

After the set was repaired and re calibrated, we opted to get a one-year maintenance agreement with Sears so any future repairs will be covered at no cost since the lamp should be up for replacement in the near future.

The TV still produces great-looking pictures and we still think it was a good buy especially since we got it on sale.
post #1868 of 1965
Just picked one of these up & wondering if black level can be improved & picture seems a little soft. I have tried a couple of settings posted here already.
post #1869 of 1965
I searched in this thread and this problem comes up a couple times, but there are no replies. So I figure I'll ask again.

I have a 6176S and after about 2 minutes I start seeing a pulsing in the brightness. It's very noticeable while sitting on the PS3 store home page, or the Comcast guide page (both with bright blue backgrounds). The whites turn yellowish to bright white.

There sounds like a cycling of a fan or something behind, but I can't tell where the noise is specifically coming from. I have replaced the bulb (with enclosure) and the color wheel and also have blown out a lot of dust that was inside.

I'm not sure where to go next. I'd like to fix it on my own, since I'm sure a tech will cost me an arm and a leg. Could this be a ballast going? Fan not cooling it down properly and it is overheating?

It's truly not the end of the world, but it's really annoying.

Thanks

-mark
post #1870 of 1965
Hi everyone.

Seems these sets are getting old, but I've had good luck with my HT-L 5076SX/XAA. I've had it since October of 2007 but recently the brightness dimmed & is almost gone. I've ordered a new Philips lamp (BP96-01795A) that should arrive this Tuesday. My question is do I need to reset the "hours used" in the service menu? I don't see any warning messages but it seems I have read that somewhere.
post #1871 of 1965
Quote:
Originally Posted by DERG View Post

Hi everyone.

Seems these sets are getting old, but I've had good luck with my HT-L 5076SX/XAA. I've had it since October of 2007 but recently the brightness dimmed & is almost gone. I've ordered a new Philips lamp (BP96-01795A) that should arrive this Tuesday. My question is do I need to reset the "hours used" in the service menu? I don't see any warning messages but it seems I have read that somewhere.

Sure sounds like you need that new lamp to me! I have the 56" version of this set and have had some issues (luckily all covered under warranty). But overall I really love this tv. Something about rear projection just looks better to me than all but the very high end lcd or plasmas.
When I had my lamp replaced I went in to the service menu and reset the hours for the bulb to zero. But be warned: Every time I have ever gone into the service menu for any reason, all custom settings seem to revert back to factory defaults. So you may want to be safe and write down your settings (color, tint, contrast, etc) before going in there.
I am sure your tv will be like new again after the new lamp gets put in. Good Luck!
post #1872 of 1965
Thanks for the post. I was concerned it was too old & no one would respond.

I guess it's been getting gradually darker for some time but so gradual that we didn't notice it. But, in the last week or so it was unmistakeable. It's been a great set & well worth $100 to replace the lamp.

I haven't needed to modified anything in the service menu until now. So, I press Mute followed by 1, 8, 2, Power then find & zero the lamp hours or just Reset everything? Or, is this even needed if I'm not concerned how many hours it reads?

Thanks again!
post #1873 of 1965
I still love this set, it is not my everyday tv, it is more of a movie night TV along with my gaming TV, I prob only use it about 20 HRS a Month, I don't have many hours on it. I have Sammy Plasmas and Lcd's and this still to me has the best pic. I know I didn't answer your question.

I know I got a free replacment bulb from circuit city when mine went doesn't look like ill get that now.
post #1874 of 1965
Quote:
Originally Posted by JOE.G View Post

... I know I didn't answer your question...

That's OK.

It is our everyday set. The only complaint I had was the sets geometry which I documented at this forum. The screen is so thin that it bows outward (parabolic instead of flat) which causes geometry the mid-portion of the screen to sag or curve downward. Screen menus that should have straight lines across the middle, curved downward. I had the set replaced about 4 times until I got one that was acceptable.

But, I cannot complain about the picture quality. The images are razor sharp & outstanding color. It's a keeper into something else more $$$ goes bad!
post #1875 of 1965
I had the same problem Circuit city brought 3 or 4 diffrent sets to my house each one worse, I ended up keeping my original set and had a guy come under warranty and he adjusted the back of the set using the screws and the Picture ended up being perfectly flat, in till I relocated the Tv then it went off again.
post #1876 of 1965
Quote:
Originally Posted by DERG View Post

Thanks for the post. I was concerned it was too old & no one would respond.

I guess it's been getting gradually darker for some time but so gradual that we didn't notice it. But, in the last week or so it was unmistakeable. It's been a great set & well worth $100 to replace the lamp.

I haven't needed to modified anything in the service menu until now. So, I press Mute followed by 1, 8, 2, Power then find & zero the lamp hours or just Reset everything? Or, is this even needed if I'm not concerned how many hours it reads?

Thanks again!

You do not need to reset the hours in the service menu unless you want to.
post #1877 of 1965
Thanks Jeff
post #1878 of 1965
Installed the new lamp & all I can say is WOW, what a difference! Just off hand I'd say that the brightness has been dimming for awhile but so gradual we didn't notice.

And what an easy install. The 50" model installs by removing one screw on the left side (when facing the front) to remove the access door, then flipping a spring clip downward that locks the lamp in place. Less that 2 minutes & done. Like a new set now.
post #1879 of 1965
How much did it cost for the lamp? and where did you get it? Is it the OEM lamp?
post #1880 of 1965
Quote:
Originally Posted by DERG View Post

Installed the new lamp & all I can say is WOW, what a difference! Just off hand I'd say that the brightness has been dimming for awhile but so gradual we didn't notice.

Same here. Since the lamp never completely died we never really noticed the slight dimming over time. We had been running the brightness setting up around 80-90. With the new one it runs around 60-65. (I use a calibration disc for ballpark settings, then tweek to personal preference).
post #1881 of 1965
Quote:
Originally Posted by JOE.G View Post

How much did it cost for the lamp? and where did you get it? Is it the OEM lamp?

$116 from Newegg made by Philips who is the original lamp maker & the housing is exact.
post #1882 of 1965
Quote:
Originally Posted by jeff1967 View Post

Same here. Since the lamp never completely died we never really noticed the slight dimming over time. We had been running the brightness setting up around 80-90. With the new one it runs around 60-65. (I use a calibration disc for ballpark settings, then tweek to personal preference).

Yeah, I'm into calibration, too. At the moment I have the brightness & contrast at 50 & Warm2. I should get the calibration disc out to tweak it in but thought it wise to allow the new lamp some break-in time.

I teased my wife last night that she'd need sunglasses.
post #1883 of 1965
getting my DMD chip replaced tomorrow and also having them throw in the new bulb I bought a while back and haven't put in.

Anyone else got white dots? If so, it's the DMD chip.

i almost bought a panasonic tc-p65st30 last night after reading a bunch of review here but after I went to the store and cylced through the settings ect, I was less than impressed with the PQ, so I decided to fix this one and I hope nothing else goes wrong after I dump 340 bucks to fix it.

fingers crossed...

I still think this set has some of the best PQ around when calibrated
post #1884 of 1965
It will come time to replace it when you get the itch & something really good & worth getting is out there! For now, you couldn't buy a new set of this quality for $340.
post #1885 of 1965
Quote:
Originally Posted by DERG View Post

It will come time to replace it when you get the itch & something really good & worth getting is out there! For now, you couldn't buy a new set of this quality for $340.

that's what I was thinking. I am waiting for the repair guys right now.

I just wasn't overwhelmed with the PQ of the plasmas in the store. granted, they were in the store on torch mode, but not worth buying a new TV for 2K. Don't get me wrong, they were nice, but I'll be happy if I can just get this one fixed and have no issues for a few more years.

The LED tvs in the store were un godly bright, WOW. too much IMO. They do have them in torch mode though.

I have said and thought all along, this tv calibrated with a good source still has one of the best PQ I have seen
post #1886 of 1965
I got my tv back, I got my tv back.

woohooo.

repair guy just left, total was 335 for new dmd chip install.

he also dusted everything inside where he was working. I asked him to clean the polarized glass and teh convex mirror. I also had him put in the bulb I had previously bought in.

WOW, the PQ is unreal, holy moly is it brighter. Time to recal

I can't believe what a difference cleaning the convex mirror, polarized glass, and other mirror located on top of the convex mirror can make.

seriously guys, if you are having a repair done ask him to clean these, you can't believe how much the dust kill the PQ. It makes it look grainy when in fact it isn't

I had a long thread here about dust on the convex mirror a while back as I cleaned it myself a long time ago. It was definitively due again.

biggest thing he said is DO NOT PRESS HARD, if you cave it in at all you screwed.

I the PQ is awsome again
post #1887 of 1965
Quote:
Originally Posted by Breathing Borla View Post

I got my tv back, I got my tv back.

woohooo.

repair guy just left, total was 335 for new dmd chip install.

he also dusted everything inside where he was working. I asked him to clean the polarized glass and teh convex mirror. I also had him put in the bulb I had previously bought in.

WOW, the PQ is unreal, holy moly is it brighter. Time to recal

I can't believe what a difference cleaning the convex mirror, polarized glass, and other mirror located on top of the convex mirror can make.

seriously guys, if you are having a repair done ask him to clean these, you can't believe how much the dust kill the PQ. It makes it look grainy when in fact it isn't

I had a long thread here about dust on the convex mirror a while back as I cleaned it myself a long time ago. It was definitively due again.

biggest thing he said is DO NOT PRESS HARD, if you cave it in at all you screwed.

I the PQ is awsome again

Congrads!
post #1888 of 1965
Quote:
Originally Posted by sksahai View Post

All:

Samsung repaired my white dot issue out of warranty as a one time courtesy repair. However, a few days later, we noticed a "white shadow" against the black background that pops up when an input turns off, or when you switch inputs. It is in several spots on the TV.

I tried to capture a pic using my handheld camera, but it was shaky due to the exposure time. I have posted the pics here>

https://picasaweb.google.com/TheSaha...eat=directlink

https://picasaweb.google.com/TheSaha...eat=directlink


Does anyone know what might be the problem?

I am going to try and take better pics and send them to the repair company.

Sunil


Has anyone else experienced this? What is the solution? What are the possible causes? It's fairly annoying.
post #1889 of 1965
Quote:
Originally Posted by Bad Senor Ron View Post

Has anyone else experienced this? What is the solution? What are the possible causes? It's fairly annoying.

it's dust or smudges on the DMD chip or the convex mirror. I had one after the tech installed the DMD chip and then tested. We saw one in the middle of the TV screen. He took apart the board again and cleaned the DMD chip an it was gone. He used one of the cleaning clothes he had to wipe it out and also blew the dust off. Its very dusty in there when he starts gutting the TV for the repair, so dust can get everywhere.

have you had your DMD chip out lately?

also, learn from my mistakes, DO NOT clean the back of the TV with compressed air. It will get dust all over the convex mirror and dmd chip, ect

use a vacuum to clean it.
post #1890 of 1965
Quote:
Originally Posted by Breathing Borla View Post

it's dust or smudges on the DMD chip or the convex mirror. I had one after the tech installed the DMD chip and then tested. We saw one in the middle of the TV screen. He took apart the board again and cleaned the DMD chip an it was gone. He used one of the cleaning clothes he had to wipe it out and also blew the dust off. Its very dusty in there when he starts gutting the TV for the repair, so dust can get everywhere.

have you had your DMD chip out lately?

also, learn from my mistakes, DO NOT clean the back of the TV with compressed air. It will get dust all over the convex mirror and dmd chip, ect

use a vacuum to clean it.


The problem is that that particular little pattern was in only one place, then after the white dot repair it was all over. I think they replaced the DMD, so not sure what is still causing this. Also, this changes in size. Imagine standing at the back of a theater and shining a flash light at the screen. It's very diffused.
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