I change the lamp but some times it turn on then off
This is usually located on the light engine if you go to the link below and zoom in on the picture you can see it right above the ballast. It will be a small circle about the size of a quarter with a small board on top.
http://www.moduslinkptstvboards.com/bp96-00822j/
SOURCE: hdtv-dlp has no sound or picture
This sounds like an o-so familar problem. It sounds like the Switching IC or the MICOM has failed
SOURCE: Samsung 46" DLP
Did you order an ORIGINAL REPLACEMENT LAMP? There's lots of guys out there claiming to sell original lamps but there really not the original. For Samsung TVs (The majority of them) use Philips branded lamps. Check and make sure you lamp is a Philips lamp. Check out FixYourDLP blog for more information as there's lots o interesting reading there
SOURCE: Samsung DLP TV, no picture, has sound
Try replacing the ballast next. Its the small circuit board directly underneath the lamp housing. You can access it through the lamp door. If the ballast is overheating or has a leaking capacitor, the tv won't stay lit for more than a minute or two.
SOURCE: My Samsung 50" DLP HDTV keeps humming when the DLP lamp comes on.
Hi, you have one of two problems, either the color wheel is going or one of the cooling fans are going, the color wheels are a very common problem in samsung dlp`s, sorry I can`t nail it to a specific part but I`d bet it`s the color wheel as they are notorious for failing in samsungs, video-tek
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