Question about Samsung HLP4663W 46" Rear Projection HDTV

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Premature colour wheel replacement - design problem?

I note the number of people who have replaced the colour wheel . My wheel failed after 2 years use and the repair man is still waiting for a samsung replacement part over 2 months later.. In addition, he has just had an identical sp46 L6HX dropped in with the identical problem.

It's clearly a mechanical part, but given the number of people who appear to be having problems...is it a potential design problem and worth trying to take it further with samsung? It's not exactly a cheap part !

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Mcm electronics has it in stock Part # BP96-00674A $80.00

Posted on Jun 15, 2008

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Your lucky you have a samsung . mitsubishi toshiba ,and others .

do not supply the color wheel . you must buy the whole engine.

(big bucks)

Posted on Jun 16, 2008

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Those motor bearings in those DC motors do wear out as they are not really bearings but are called races. They are self oiled and are made out of brass. Never heard that about putting the set on a UPS so the motor could shut down properly? A DC motor is on or off. a freespining motor does not cause premature breakdown. I have seen where the brushes are bad in these motors and this is caused by use. No motor last forever. It is called friction and the laws of gravity that cause these motors to go bad, NOT a design flaw.

Posted on Jun 15, 2008

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How does the color wheel fail? I was told that any color wheel TV should be hooked up to a UPS (uninteruptable power supply) so if the power goes off, the TV will still be able to shut down properly, much like a turbo in a car. If you shut the motor down while the turbo is still spinning at 30000 rpm, the bearings that were oil fed are now dry and you reduce the life of the bearing.

Posted on Jun 15, 2008

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