Question about Philips Magnavox 51MP392H Rear Projection Television

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Power turning off and on

My television is just over a year old, and is now turning itself off and on. When you turn the power on, the power/standby button flashes then it turns itself off. After about 30 seconds to a minute it will turn itself back on and then back off, and repeats.

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This may be the main digital module, I would suspect that this set is a couple years old and would be having issues with maybe the SSB module in that case, unplugging the set for 1 min might help, but I bet that it will require service.

Posted on Jul 08, 2007

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Posted on Jan 02, 2017

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SOURCE: the picture goes off. the power/standby light

Replace the lamp

Posted on Feb 01, 2010

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If you unplug for a minute and hit the power button it sound like it is coming on then it shuts off and the red power light flashes slowly. The TV is a Panisonic 1080i HDTV, about 6-7 years old. ... I have an old type sony tv with the big back and the red power light keeps flashing and ...

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1 Answer

Please my tv with on the standby mode when i try to put it back it couldn't the indicator now goes on and off with picture show please help
The standby light on a Sony television indicates when the television is turned on and operating, or turned off and in "standby" mode. However, this light also serves a secondary function: indicating when there is a problem with the television by flashing. When the standby light begins to flash, there are two reset options that can be performed to resolve whatever issue it's indicating -- a power reset and a factory reset

POWER RESET
1. Turn off your TV
  • 2. Unplug the television from the electrical outlet. If you're using a surge protector or power strip, disconnect the television from the strip itself. Only by disconnecting the power cord from the outlet can you ensure no power reaches the TV during the power cycle.
  • 3. Leave the television without power for at least 60 seconds. This gives the television enough time for all components to power down during the power cycle
    • 4. Plug the television back into the electrical outlet. If you're using a surge protector or power strip, plug the television directly into the wall outlet instead. The surge protector may otherwise interfere with the power-up cycle, especially if it is old or damaged.
  • 5. Turn on the television. If the blinking standby light continues, you'll need to move on to the factory reset process.

    • FACTORY RESET
  • 1. Turn on the television.
  • 2. Press and hold either the "Reset" or up arrow button on the remote control.
    • 3. Press and release the "Power" button on the front of the television, while keeping the "Reset" or up arrow button on the remote depressed.
    4. Release the "Reset" or up arrow button.
    5. Allow the television to reset after the "Reset" message appears on the screen.
    6. Make no adjustments to the television for at least one minute after the reset has completed. This is to allow the television time to finish auto-configuration and initial set up.
    7.Turn off the television and unplug the power cord from the electrical outlet.
    8. Wait ten seconds, then plug the television back into the electrical outlet and turn on the TV.
    9. Follow all on-screen instructions to complete setup. These are the instructions displayed the first time you set up the television, for configuring channels, menu language, time, display properties and more.

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    If you removed power by turning off power itself to the set instead of turning it off by turning the set itself off---that is not a good thing to do.

    When power is restored a surge can and likely hit the power supply in your set---time for a tech or shop to open it---I suspect they will find the standby or main power supply is damaged or now bad.

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    Ive just bought this tv and when i turn it on the stand by light is flashing but i cant turn the tv on please can you help?
    This shouldn't happen. When the standby light is flashing there is a problem with the television and it needs servicing. It could be the main board, the power supply, or both. This is a costly repair when a television is not in warranty. Now there are times when a television has to be turned on from the power button located on the top or side of it when first being unboxed. At a time like that the remote control will not work to power on the television. I don't believe that is the problem you are experiencing.

    The troubleshooting for this is to unplug the television overnight and when you plug it back in the next day wait for the standby light to start flashing. Hold down the power button on the television set itself. Wait and see if the standby light stops flashing and turns red (or a different color). Let go of the power button. Press it once more and release it once more. The television should come on.

    Even if the above works you don't want to risk something really being wrong with the television and a costly repair being needed after the warranty expires.

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