Question about Samsung TXM2796HF 27" TV

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Samsung TXM2796HF Turns off after 45 min to 1 hr

The TV works great and has great picture and sound until about 45 minutes to 1 hour of being on and then it turns off and won't mturn back on until after it "cools down". It seems that something is overheating and shutting it down. I took the back off and made sure there was no dust build up on the inside. This made no difference. What is overheating and causing it to shut down?

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  • 4 more comments 
  • segull Feb 20, 2008

    I have the same problem. Have you found a solution?

  • Anonymous Mar 03, 2008

    March 2, 2008: have the same auto cut-off problem every 30 minutes
    starting February 22, 2008, cleaned dust by vacuum from the outside of
    cabinet, did not open the cabinet...too scared. I unplug for 5 minutes,
    then it comes back on for 30 or more minutes, purchased TMX2796HF
    from Sears in October 2002. Sometimes it will stay on for an entire 24
    hours before going through a turn off cycle...Margaret

  • Copier Connection
    Copier Connection Mar 22, 2008

    EXACT SAME PROBLEM. REMOVED BACK COVER BLEW OUT DUST W/CANNED AIR. WORKS BETTER, BUT WILL STILL OCCASSIONALY TURN OFF. BEEN TOLD POWER SUPPLY. ???

  • nervouss Mar 24, 2008

    I have the same issue, I haven't sleaned it out (have not opened it) wondering if a simple power supply swap woudl fix this.



    Any idea's anyone fix this issue?

  • MurrayMc Jul 26, 2008

    I have the same problem. Turns off, then won't restart for a while.

  • nervouss May 11, 2010

    I have the same issue, I haven't sleaned it out (have not opened it) wondering if a simple power supply swap woudl fix this.



    Any idea's anyone fix this issue?

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  • Samsung Master
  • 12,962 Answers

Probably some component in the power supply. Look for a leaking or swollen capacitor. They can change value during operation unlike a diode or transistor that either works or does not work. U might even remove and test all caps in the PS area and replace any one that is questionable regarding its specs.

Posted on Aug 30, 2017

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Posted on Jan 02, 2017

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SOURCE: On / Off problem

YOUR ON/OFF BUTTON ON THE FRONT PANNEL IS STUCK
SOME HOW (PRESSED IN ) TY SOME WD40 ON IT . SEE IF THAT WORKS.

Posted on Dec 12, 2007

phoenixcomm
  • 18 Answers

SOURCE: samsung hlp5674w

not blub you do get light ie a picture it sound like your video processor has a heat problem,
alias, you can not repair this you self, Hope its still under the warranty. You got to take it to the repair man... Soory

Posted on Feb 12, 2008

  • 1 Answer

SOURCE: Samsung DLP TV shuts off

I had the same problem and stumbled on the fix. It seems there is a factory defect. Open the lamp cover and you will probobly notice that the blue shut off switch on the left side is landing on top od the lamp cover. Reach down with a pencil or something and make sure the switch is under the tab on the lamp cover. My 50 DLP has not shut down since I set the switch properly. Free fix... try it.

Posted on Jun 25, 2008

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SOURCE: TV shuts off

prob  erratic connection  on pc board finding same problem.  

Posted on Dec 01, 2008

  • 108 Answers

SOURCE: Our Samsung HL-P4663W DLP is makes noise and shuts off

It is the color wheel, inside the light engine. The bearings get dirty and makes it harder for the wheel to spin causing that whin.

Posted on Jan 06, 2009

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