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Samsung DLP HLP4674W Picture goes out    
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kencart



Joined: 25 Jan 2010
Posts: 2
Location: san francisco, ca

PostPosted: Mon Jan 25, 2010 5:59 pm    Post subject: Samsung DLP HLP4674W Picture goes out Reply with quote

Hello, I have a HLP4674W, that was given to me with this problem. It powers up, then after anywhere between 1 and 10 minutes, the picture (which is fine; not dim or distorted) goes out but the sound continues. I then hit the power button and the light will try to light once and the color wheel will repeatedly start to spin with a high pitched wine. If I unplug the set for 5 or so minutes and plug it back in, the picture will come on again but for a shorter time before going back out. all the fans run, though it seems like maybe an over heating problem. A bad heat sensor? The 3 lights on the front blink, and the lamp and ballast have been replaced. Are these symptoms of a bad DMB board? Any help would be appreciated. thanks.
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Inkedivxx



Joined: 05 Aug 2009
Posts: 39
Location: Myrtle Beach SC

PostPosted: Wed Jan 27, 2010 2:38 pm    Post subject: Reply with quote

I would start with the color wheel if it is whining.....If the color wheel is not spinning at the rate it should, the set will shutdown.

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kencart



Joined: 25 Jan 2010
Posts: 2
Location: san francisco, ca

PostPosted: Wed Jan 27, 2010 3:40 pm    Post subject: re: inkedivxx Reply with quote

i was wondering about that however when the picture is up it is perfect and it doesnt distort or anything as it goes out; just goes black. also it only whines when its powering up, not when its running. could that still be the wheel?
Inkedivxx



Joined: 05 Aug 2009
Posts: 39
Location: Myrtle Beach SC

PostPosted: Thu Jan 28, 2010 8:55 am    Post subject: Reply with quote

If there is any whine coming from the set, it is the bearings in the wheel going bad. This wheel is notorious for bad bearings......
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