I HAVE A 50" SAMSUNG DLP THE PITURE GOES OUY IF YOU TURN THE SET ON WITHIN 3-4 MINUTES IT TURNS OFF AND THE CODES SAY LAMP AND TIMER AND STANDBY

SOURCE: samsung,model-HLP4663WX/XAA , bought in jan.

Had same problem. Bought replacement lamp. Worked for 6 weeks now I'm looking at replacing the ballast. TV turns of after 5 minutes.

SOURCE: Samsung Dlp HL-R7178w not turning On.

If all 3 leds blink, it can be the lamp, ballast (lamp driver), color wheel, or dmd board (all are engine parts = engine failur). its usually the lamp, but you can listen to troubleshoot. when it turns on, you will hear the fans come up (humm..airflow noise), then you will hear the colorwheel (high pitched squeel.. it will come up to speed) and then the ballast will fire up the lamp.. if the lamp doesn't fire, you will hear the spark gap fire (a 1 second buzz noise indicating bad lamp).. the gap will fire 3 times, they tv will then retry again and again until it shuts off and kicks out the error. this power up path will help you listen to find your problem. i can assist further.

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

SOURCE: TV won't stay on. Green & Red light timer-lamp (Green) stand by/temp (red) flash.

Most likely needs a new lamp. Easily done yourself.

SOURCE: Samsung DLP seems to turn itself off

HI, this is a weak power board that is causing this shutdown. there is a faulty IC on the board that is unable to correctly distribute the necessary power throughout the set at this time.

Simply replacing the power board will fix this issue. This is not a do it your self so, we recommend a professional service tech for this repair.