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Angel

dlanierjr. As you said the DMD and digital boards seem to be OK, since this problem just happen with analog inputs the problem is most probably with the analog board, if the digital board was bad you wouldn't be able to watch anything but the menu, unless your problem was intermittent. Hope this hel...

Angel

rafmen: 1) More information on what the DMD board actually is and what it does: DMD stands for Digital Micromirrors Device . This is kind of the brain of the image projection on the screen. It has on its surface several hundred thousand microscopic mirrors, each of them correspond to a pixel on the ...

Angel

It seems like it doesn't have it...

: Panasonic-N2QAYB000100-Remote-2.jpg (118.45 KiB) Viewed 7251 times

Are you trying to reset the lamp timer?

Angel

What is the wattage and gap of the new Osram bulb?
What is the wattage and gap of the old bulb?

Do they match?

Angel

Do you hear any strange noise? Any clicking or something else?

Angel

It's a PCB. Here you can see how they are:

Hope this helps.

Angel

Have you ever replaced the lamp?
How old is your TV?
Do you hear just one click?

Angel

Well, usually the OSRAM bulbs are not that bad, but definitely Philips bulbs are the best in the market. It could be that you had a Philips bulb and now you have an OSRAM, this way you should notice a lower quality brightness.

Angel

Well, if you can see the lamp seated properly across the front hole of the housing then I don't think your issue is with the alignment.

Have you tried to adjust the brightness on the menu?
Which is the brand of the bulb you received?

Angel

Hi steven.

The problem you have is most probably a ballast issue. When this device fails you hear a clicking noise every time is trying to turn the lamp on, just as you described. Replacing it should solve your problem.

Hope this helps.

Angel

Well, according to your manual (which you can check here: http://fixyourdlp.com/blog/manuals/Samsung/6025832cfbc0c94dd16a00455a4dc893.pdf ) the blinking leds indicate that the lamp door is not seated properly, however you said you already checked it. If this is not the problem then could be an overh...

Angel

Hi rafmen. Yes, it seems to be your DMD board, however to be on the safe side try to display the menu once the picture freezes, if it doesn't work then go ahead with the replacement, if it works ok but the picture on the back still frozen then the problem could be in the digital board. Try this test...

Angel

You're welcome, we're here to help 8-)

Angel

Yes it could be. Usually the way the TV realizes that needs a new lamp is by the lamp hours meter, but if the lamp expires before the expected life span then it's probable than the TV doesn't turn the lamp led on. To be honest this is just a supposition since I don't know exactly how this "lamp...

Angel

Thanks for the Reply, TVwizard. I'll definetely see what I can do to replace de DMD Board. About the blue screen, I tested a burned DVD and it plays through the DVI input, and also some DVD's that I assume are not copy protected. the ones that I cannot play are original movie discs, and they won't ...

Angel

Hi ediaz. Ok, it definitely seems that you need a new DMD board, it will fix the freezing problem. About the lines I'm not sure, since that problem could also be produced by the digital board. You can display the TV menu and see if the lines appear also over it, that would mean that the DMD board is...

Angel

Yes, it sounds like a fan. I suggest you to tape the lamp door switch and locate which fan is producing the noise.

Angel

Hi xea.

Since you haven't any noise this problem is most probably the lamp.

Have you ever replaced it?
How old is your TV?

Angel

I have the HL-R4667W and had just replaced the lamp. The picture is great but now I have a high pitched noise when I turn it on and when it is turned off the noise sounds like a jet engine the is being shut down followed by a stick on the surface of box fan? Do you have any problem with your pictur...

Angel

Angel

Hi again. Well, as far as I know the DMD chip isn't sold separately, you need to buy the whole board. However I wouldn't buy the DMD chip alone, I run the risk of getting a not compatible part. Check the part number of your DMD board and look for the exactly same part so you get the correct one this...

Angel

atitagain. There is a temperature sensor in your TV. Is located above the lamp place. Check the part number, it must be something like AA41-00801 and some letter at the end. Then you can find it at D-M: http://www.discount-merchant.com/SearchResults.asp?Search=samsung+temperature+sensor Hope this he...

Angel

Usually when is a color wheel issue the TV turns itself Off, but sometimes when the color wheel is damaged but still spinning at the right speed the image could present some color distortions or flickering like in your case. However the flickering could also be caused by the ballast. However since y...

Angel

I think you could have some dust on one of the lens. It could also be that you have a misplaced lamp...

Angel

You need to take the part number from the actual board. Sometimes is possible to find it by the TV model, but sometimes they just have the part number of the board.

Angel

Well, at D-M they're for $179.99:

You just need to look for the one that matches with your model.

Angel

Well, if you're color wheel is shattered and you're going to replace it anyway then the best option is to wait until yo do that and see if is there any other issue.

Angel

Ok, then you need to replace the DMD board. If you're handy replace it by yourself, just need to know where is the light engine located, you can see it here: http://guides.fixyourdlp.com/samsung/bp96-01579a.php . This is a color wheel replacement guide, but you can see there how to take the light en...

Angel

Do these lines appear over the tv menu too?

Angel

It could be the digital board.

Test 1: Display the TV menu and tell me if it's also grainy.

Test 2: Try with an analog input and check if the problem persists.

Get back to me once you have completed these tests.

Angel

You need to replace the lamp.

Angel

99% sure is your color wheel. Replacing it should solve that issue.

Hope this helps.

Angel

Both inputs do the same thing. I'm using HDMI cables. It's just not a clear picture anymore. The darks are blurred. Shadows and smoke are very blurred. It looks the way it does when you might not be receiving a good satellite signal, but my signal meter on the satellite receiver shows 97 and 98 and...

Angel

Hi ranman. The problem is not with your color wheel. If your color wheel was stuck then the DMD would turn Off the TV. The white color is made by combining all the three colors in the color wheel, so your color wheel has to be spinning in order to generate the image you're watching. Most probably th...

Angel

Ok, that's great. Please let us know which is the problem. Good luck with the technician ;)

Angel

Hi chiefrocka.

Once your problem start try to display the TV menu, if it is also affected then my recommendation would be replacing the DMD board.

Hope this helps.

Angel

Wow, that seems to be the digital board, check if when that grid appears you can display the TV menu, if so, then replace it.

Angel

May the Force be with you Joe ;)

Angel

Hi Dan.

There are two possibilities: Color wheel (buzzing / spinning noise) or ballast (clicking noise).

Angel

Not a big deal if you're a handy person. Just need to remove screws and take some parts out of the TV.

Check this out: , you can follow those steps until you have the light engine apart, then instead of replacing the color wheel replace the DMD board.

Hope this helps.

Angel

At DM they are for $179.99:

Angel

hi Joe. The problem you have is due to a DMD failure. My recommendation is to replace the DMD board. However to be on the safe side, display the TV menu, if the lines appear on the menu too then go ahead with the replacement, if not then get back to us and we'll continue troubleshooting. Hope this h...

Angel

Hi EDERDS.

Well, if you have a bright picture then your lamp is not the problem. Does this problem happen with all the inputs?

Angel

Hi divakarr.

I think that's an issue with your DMD board, but lets see your pictures...

Angel

Definitely, I've only heard about white pixels, but I think the same applies.

Angel

Hi Maymoon.

I found a good image that shows how to reset your lamp hours meter:

: Taken from www.agoraquest.com; reset_sony_hours.jpg (107.56 KiB) Viewed 6375 times

Hope this helps.

Angel

Hi melonberry.

It seems like if you have something obstructing the red light... Are you sure you replaced the complete light engine? cause if you did it then this problem should be fixed with that replacement.

Angel

If the problem was due to a board failure it wouldn't be another than the DMD. When the analog or digital board fail the DMD board should let you at least to display the TV menu and I think the TV wouldn't turn off. The light could be white if the DMD chip wasn't switching the three different types ...

Angel

Hi lmiller.

If you're hearing a clicking noise the problem is your ballast. Maybe you got a defective one. As far as I know there's no other device inside your TV that could make that noise.

Angel

Hi stealth.

The part number is usually located in a label that has a bar code. Normally you can look for parts by model at:
. But unfortunetely they don't show anything for your model number...

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