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My tv keeps shutting off when I hit the power button the tv only stays powered up for about 15 seconds

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HI, this may be as simple as a failed cooling fan or, the power board may be experiencing some issues with vital component breakdown as well. i recommend, if possible, to check the operational value of the cooling fans that are located inside the chassis near the power sector. test the value of the fan motor to confirm proper current flow. if no voltage is supplied, this will confirm a damaged power sector(board). if the voltage is present and the motor is not rotating, this will confirm a burned out cooling fan.

Replace the failed device.

**Most common issue here will be a weak or damaged power sector.

Posted on Jul 26, 2009

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When I turn on my Sony TV, ti stays on about 30 seconds then shuts off, What do you think is wrong?


Do a Power Reset.
1. Turn off TV.
2. Unplug the power cord of the TV from the electrical outlet.
3. Let the TV remain without power for 60 seconds.
4. Plug the power cord back into the electrical outlet. (If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.)
5. Turn on the TV.
If issue persists after doing the steps, reset the TV to factory default settings.
1. Turn on the TV.
2. Using the supplied remote, press and hold the UP arrow button.
3. While holding the UP arrow button press the POWER button on the TV itself.
4. When the TV goes off, release the POWER and UP arrow button.
5. The TV will turn on by itself and the initial setup screen will be displayed. Just follow the on-screen prompts to finish the setup.
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1 Answer

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The reason for this type of faults are very difficult to detect. Contact any service technician.

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1 Answer

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The symptom you describe suggests power supply failure. It is still working but fading fast

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The power light is just blinking red on my panasonic 1080i hdtv. cant even switch it off using the power button. picture and sound come on for about a second when the tv is switched on after power cord...


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1 Answer

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I have the same exact problem, did you guys got any help?

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i will help with the easiest way, hit the TV button, then hold the setup button untill the light blinks twice, then hit 991, it will flash again, hit the 1 again, then hit power, then hit the chanel up button, and if it dont shut off, hit the chanul up button again, keep going this every 2 seconds(with the chanel up button) untill the power shuts off, when it shuts off, hit the setup button again, that will lock it in, hit the power button again-TV should come back on, if that dont work, use the volum up button , after doing the first few steps, hope this helps

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1 Answer

TV shutting down


Probable main power supply failure. In all modern sets, there will be two power supplies; one that keeps the set enough alive to respond to the remote and a second one that does the 'heavy lifting' supplying several regulated voltages for different subsystems. This latter one has failed.
If you can locate the main supply board, it may be fairly easy to remove to send off to the factory for repair.   

Dec 04, 2008 | Televison & Video

1 Answer

We plugged in the tv and hit the power button the green timer light blinked for about a minute. We hit he power button and it stayed on for about 5 second and turned off. We just bought this tv used and...


This is a common problem with this kind of tv. When you give the unit power the green light will blink because it is telling you that the projection lights are warming up. Sometimes it will take up to a minute. When you hit the power button again after only 5 seconds it told the tv to power off. I hope this will help you out.

Nov 23, 2008 | Televison & Video

1 Answer

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I need the pin for this tv

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