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How do you tell if the color wheel or the cooling fan is out

When my tv went out I pulled the lamp, the lamp has no glass shards and it look like the little copper wire is still hooked to the filament. Before the TV went out it made a whirling sound, and the picture went black. When turned on the picture remains off and there is a loud whirling sound. Is it the color wheel or fan

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That would be the color wheel. They range from $150-$600. That sounds like the whole light engine could have went out. They can be rebuilt for around 750-1000 bucks.

Posted on Jan 13, 2009

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Popped lamp, rapid clicking after replacement


Take it out and get in there with a vacuum. There are fans that keep it cool and there is a color wheel that might be damaged. All those shards need to be removed

Jan 22, 2014 | Mitsubishi Diamond WD-65831 65" Projection...

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When I turn my tv on it makes this loud noise like a motor is running and I have no picture. Any ideas of what the problem may be??


hi,
you have to che check three thing in your tv
1. lamp
2. lamp cooling fan
3. color wheel
you have mentioned that there is a loud sound can caused by the lamp cooling fan or by the color wheel. when the bearing of any one get damaged it will create aloud noise.
check the color wheel first. also check the lamp is it broken or not. if you need any more assistance feel free to contact me through fixya
ok

Feb 02, 2011 | Samsung HL-R4667W Rear Projection...

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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


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.

Aug 06, 2010 | Samsung HLP4663W 46" Rear Projection HDTV

1 Answer

I hear the fan almost non stop while the tv is on.


You have a bad color wheel. The color wheel is located in front of the lamp, as the light shines through it as it spins. It is made up of different colored segments of glass, and one of the segments has came loose and causing the vibrating humming noise. The reason I know it isn't a fan is because the fans will continue to run for about 30 seconds after the set is powered off. The click you hear is the relay cutting off the fans. The color wheel cuts off as soon as you press the power button to cut the set off. I've replaced many of these at our shop for the same problem.

Jul 29, 2010 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

My Samsung HLP4663W 46 in was making a buzzing noise for several months. I know it could have been either the fan(s) or the color wheel, but I never opened it up to determine which it was. Now the TV quit...


Great reasoning work! In fact, the lamp will not light if the color wheel does not spin-up. Fans will not stop the process of lamp ignition. Instead, a fan will be detected and a message will appear on the screen telling which fan has stopped. You need to have the color wheel replaced.

Mar 15, 2010 | Samsung HLP4663W 46" Rear Projection HDTV

1 Answer

Picture and sound went out at same time.


The projection lamp is gone and needs replacement. The lamp typically lasts about 8,000 hours on high end models and 1,000-2000 hours on cheaper models.LED technology based lamps lasts for about 20,000 hours. Operating the TV in a warm environment without enough ventilation or at high elevations reduces the lamp life. Setting the color or contrast to a lower level increases the lamp life.
Here's how to replace the lamp:
  1. Turn your TV off. Let it sit there for about 5 minutes to let the cooling fan help cool the lamp.
  2. Unplug your TV from the power let it sit about another 30 minutes.
  3. Usually the lamp has a cover that you will need to unscrew. Most manufactures use a Philips head screw for holding the cover shut. Unscrew the lamp cover.
  4. Unpack the replacement lamp. Be careful not to tough the glass, as oil from your fingers can damage the lamp's surface.
  5. Pull the lamp out. Most lamps have a plastic tab or hoop on the handle that you can use to pull it out. Follow the owners manual for specific instructions on how to pull the lamp out. Make sure you do not touch the surrounding lamp housing if you just turned off the TV. It can burn you if it is hot.
  6. After the lamp has cooled, place it into the empty box of the replacement lamp. Never put the used lamp into a plastic bag.
  7. Using the guiding post also called "gutters" by some manufactures slide the lamp replacement lamp in pushing it until you hear a firm click.
  8. Screw the lamp cover back in.

Sep 26, 2009 | Hitachi 50FX48B 50" Rear Projection...

2 Answers

Replaced color wheel


OK, THIS TV HAS BEEN A DOG,IT seems the light engine was going bad to start with so it is a good thing i diidnt replace :LAMP,or Balster,New Color wheel is working,But with BAD Light Engine Lamp will not longer come on either!

Jun 11, 2009 | Samsung HLN5065W 50" Rear Projection...

1 Answer

How do I know if the lamp is out or the color wheel


If the lamp is blown out, you will see shards of glass floating around in the bulb. The wires that connect to the glass element in the center will be "disconnected". If the set is less than a year old the bulb is under warranty. All you will have to do is contat the people that sold you the televison and tell them the bulb is blown and do a warranty claim. Good luck!

Jan 13, 2009 | Samsung HTQ45 System

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