Question about Samsung HLP4663W 46" Rear Projection HDTV

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At start up TV makes siren & ratching like sounds, no picture screen dark, requires turning TV off, is this cooling fan or color wheel problem & lamp replacement or all

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That could be any of them. If you can get access to an analog meter such as voltmeter, you can test power to the cooling fan, to the color wheel, and to the lamp. See if any or none are getting power.

Posted on Aug 06, 2010

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Posted on Jan 02, 2017

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Model WD-65734. Why is there no picture?


Never heard of a color wheel needing to be replaced. Both cooling fans need to be clean and turn easily. Color wheel fan needs to turn easily. If any one of these motors does not turn, the controller will cause a shut-down. The Xenon lamp uses high voltage to operate. If the power supply was damaged, the lamp won't light. The sparking on the ballast board indicates that dirt or dust may be causing the problem. Also, the clamping diodes and regulator may be defective. If possible, try replacing the lamp power board. Regards.

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1 Answer

When I turn on my Samsung 46" DLP, I get this whining noise that sounds like a soft siren winding up. It cycles on and off with no picture, and then shuts itself off after a few cycles. Sound only.


The tv have a colors wheel is design in it.The whinning noises is it the causes by a dying colors wheel it is spinning off of it motor axis.The colors wheel is dead,require replacing.The colors wheel sit way back of the tv.Have to take out many mechanical parts out before can even come to the colors wheel itself to replace it.If u have no mechanical skills don't tries to replaced the colors wheel by ur self.Hire a tv Tech to do the job,if u don't u do a wrong installation of the new colors wheel in ur tv u will regret it,because the colors wheel functions,link to the tv Light Engine Block itself most exspensive part of the tv beside the CRT-tv tube.

Apr 20, 2011 | Samsung HLP4663W 46" Rear Projection HDTV

1 Answer

Noisy sounds like a fan and the picture starts to flickers multiple colors and picture is scambled.


This tv have a colors wheel.The colors wheel is dead.The colors wheel is dying,going to be dead.The tv make loud humming,noisy sounds like a loud fans or motors noises.Also the tv colors flashes black&white or multiple colors pictures and scrambled.Colors wheel replacement is difficult,never done tv repair before.Hire a tv Tech. to replaced the tv colors wheel.

Nov 16, 2010 | Samsung HLN5065W 50" Rear Projection...

2 Answers

I'm experiencing a loud buzzing (fan?) sound that just started recently while watching my HLP5674W. The picture is fine, but the sound of what may be a fan or something like that is very loud and will...


Loud sound would be coming from defective color wheel that is mounted i light engine, next to lamp housing. Replacement of color wheel is required expertise/ experience and professional will do that for you in correct and in safe manner.
Contact local tv repair shop to get color wheel replaced in tv.
Thanks.

Oct 19, 2010 | Samsung HLP5674W 56" Rear Projection...

3 Answers

I've a Samsung DLP Model HLR-4266WX that has started to hum and is distorting the picture. I've replaced the cooling fan on the heat sink in the back and that didn't work. Is there another fan in the set...


Color wheel would be cause of hum noise and distorted picture on screen.
Please note that color wheel is not user level repair and requires expertise because it is located in light engine, the most sensitive and expensive part of dlp tv.
If you are good with electronics stuff fix then have service manual copy in hand to start inspecting color wheel.

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Aug 26, 2010 | Samsung DLP HL-P5663W 56" TV

2 Answers

TV has started to make a really loud humming noise, then sounds like a siren noise after you turn it off and now it has started to turn off by itself. Thinking maybe a fan? Worried it may cost more to have...


It could be 1 of 2 fans (fans are around $30.00 each) or more likely it is the color wheel beginning to fail. Color wheel will cost around $180.00-200.00, plus labor. I would recommend calling 1-800-samsung to find the nearest service center. Part should take an hour to an hour and a half to complete repair.

Jun 30, 2010 | Samsung DLP HL-P5663W 56" TV

1 Answer

Samsung DLP HLN5065W tv Black & White Picture


Yes,the problem is the colors wheel it dead.That one of the cause by the colors wheel,other are alots of squiling noises and making very loud buzzing sound.The cooling fan that u think is overheating,does it stop sometimes,when the tv is still on?Yes,than replaced it also,no than it still ok.Just hire the tv repairman,the parts he'll take care of it,don't order the parts,u might get the wrong parts or different sizes,that will not fit in ur tv.

May 23, 2010 | Samsung DLP HL-P5663W 56" TV

1 Answer

When i turn on my tv it make a winding siren noise but no picture, i replaced the lamp, would it be the colorwheel?


sounds like the color wheel as it can almost sound like a whirling siren or a loud screeching sound

Jul 20, 2009 | Samsung DLP HL-P4663W 46" Rear Projection...

2 Answers

Motorized sound and picture quality poor and jumpy


your husband is correct it is most likely your color wheel very common and it will effect the picture. what will happen soon is your tv will not turn on. The cost is two possiablities. color wheel replacement 225,00 part is 80,00 complete light engine in rear cases cost is 650.00 dollars . I hope this helps

thanks doctor video leadingedgeeletronics since 1987

May 04, 2008 | Samsung DLP HL-P4663W 46" Rear Projection...

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