SAMSUNG DLP REAR PROJECTION 52'' SHUTS OFF AND POWERS ON.
TV will power on with a whistling pitch that gets higher pitched for 1 second. Then turns right off with no picture ever displayed. It will repeat this cycle every 20 seconds or so for ever unless power button is pressed. Thanks for any insight. TV is 2.5 years old. HDTV monitor 52".
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7OOP SMPS POWERS UP FO SECONDS THEN SHUTS FOR EVERY TIME.......
SMPS (SWICTH MODE POWER SUPPLY) HAS TWO SECTION IN IT
ONE IS AC SECTION AND OTHER IS DC SECTION WHICH IS SUPPLIED TO MOTHERBOARD,WHEN SMPS IS TURN ON ITS STOPS ALL OF SUDDEN,ITS A PROBLEM OF AC SECTION (PRIMARY SECTION) BECAUSE OF BAD AC 3 NOS TRANSISTORS IN AC SECTION) REPLACE SMPS OR GIVE IT TO COMPUTER CHIP LEVEL TECHNICIAN.
You have a blown power supply. If it is less than a year old its under warranty, send it in for repair. If it is out of warranty our site can show you how repair the internal power supply. Our site is : www.ccl-la.com/badcaps.htm click on the link at the bottom for monitor repair.
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Try changing refresh frequency, color depth or resolution (wait for the whistle to appear before testing). Admittedly, you might have to give up some image quality - less colors, or less resolution. There is probably a problem in the TV syncing mechanism - if you can, try getting it replaced. "High pitched whistles" in video and TV hardware are usually harbingers of bad news.
Do you have the video set to a range that this display cannot handle? Try rebooting into Safe Mode and set the resolution down to 800x600 or 1024x768 and see if it that will get you back. If so, then look up the specs of the display and set it no higher than it's max.
If it physicaly powers OFF, then you probably have a power issue.
That high pitched sound in one way is a very good thing. It pretty much points out the source of the problem itself. That is more than likely either a blown capacitor or transformer on the power source inside the monitor. I would rule out the power inverter for the LCD backlight because the power light will not turn on either. I have found that Samsung is very good with their repairs, and if it is a somewhat recent model they should be able to get it drop ship repaired with little expense. That can be an inconvenience, and if you do decide to replace the monitor altogether, please be eco-conscious and have the old screen either donated to a goodwill organization where scavengers like me will buy it for raw parts, or to an electronics recycling center. E-Waste is becoming a very large problem and LCDs and flat screens are a hefty piece of it.