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Samsung HLP 4663WA pictures missing red, can't power off

accent
10-09-2009, 12:14 AM
When I start the TV, it looks good for about a minute then start losing red color. At the same time, it makes no response to either remote control or the power buttons on the TV. I have to unplug the power cord to turn it off.

The lamp is new, ballast is new. Color wheel doesn't make noise. Any ideas?

Thanks a lot!

clearday
10-09-2009, 08:31 AM
It could be the color wheel even tho it's not making noise. You can see the color wheel if you look behind the bulb. If you see pieces of glass on the bottom of the tv's insides, it has broken and needs to be replaced.

PFC5
10-09-2009, 10:22 AM
Sounds like the color wheel is the likely problem. It could also be the DLP chip or something else though if the color wheel is in tack since it will not power off. So if the color wheel is in tack, and spins freely try clowing canned air on it to see if it spins freely) it is likely a circuit board.

accent
10-09-2009, 08:59 PM
It could be the color wheel even tho it's not making noise. You can see the color wheel if you look behind the bulb. If you see pieces of glass on the bottom of the tv's insides, it has broken and needs to be replaced.
When I start the TV, the pictures are good for about a minutes then the red color disappear. If the color wheel is broken, shall it has no good pictures at all?
By the way, the model should be HLP4663WX/XA

PFC5
10-09-2009, 09:17 PM
The color wheel could be sticking after running for a few minutes and the timing happens to be on the red areas of the wheel.

Did you try spinning the color wheel with canned air like I suggested? It will not hurt and can help troubleshoot the problem and possibly resolve it if dust is interfering with the wheel spinning.

accent
10-10-2009, 12:29 AM
The color wheel could be sticking after running for a few minutes and the timing happens to be on the red areas of the wheel.

Did you try spinning the color wheel with canned air like I suggested? It will not hurt and can help troubleshoot the problem and possibly resolve it if dust is interfering with the wheel spinning.

I just took the color wheel out and found no sign of problems. It's also as clean as new. My TV is only 3700 hours old.

PFC5
10-10-2009, 12:35 AM
It sounds like it is the DMD board most likely then, but that is only a guess on my part.

accent
10-10-2009, 10:08 AM
It sounds like it is the DMD board most likely then, but that is only a guess on my part.
It's expensive to replace it. How to test it before I order a new part?

PFC5
10-10-2009, 02:51 PM
I am not a repair man so I do not know how to check it. Try checking with google search for you model/mfg DLP problem and see what others found to be the cause of the same problem.

If it starts out working correctly it could be a heat issue after it warms up. Make sure it is well ventilated (away from the wall at least 3-4") and if you feel handy take the back off and clear out all the dust inside including vent opening. Also try to check if the internal fans are working properly as well. I think there are 2-3 of them.

accent
10-18-2009, 01:57 AM
Updates: it's been fixed!
The problems were caused by bad cable connections.

PFC5
10-19-2009, 12:10 PM
Glad it was that simple cheap. We should have asked about how you had it connected when you have the issue.