Question about Hitachi 50V710 50" Rear Projection HDTV-Ready Television

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My tv screen randomly shuts off and when it does I can't turn it off with the power button, I have to unplug it then it's fine for 30 min or so and does the same thing. The heat or lamp light doesn't come on so I'm confused.

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You are having a heat problem, it could be your fan or a power transistor in the power board.

Posted on Mar 16, 2011

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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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Make sure you are running the Keygen as administrator

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Vizio M470NV just purchased, while watching TV it turns off with the Vizio light blinking between orange and white. Can not turn back on !! I have to just wait for about a minute then tv turns back on by...


I have the same issue on my Vizio M470NV. I called Vizio and they told me it is a self diagnostic test that is shutting down the TV automatically to protect it. They said they are working on fixing the issue with a firmware update that will be pushed out automatically if you are connected to the internet. No ETA given on when that would happen. I called them on the 3/14/11 and my TV is still shutting down randomly.

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1 Answer

Will not power up. Stays in standby mode.


these particular tvs are very sensitive to voltage changes spikes etc.first turn off main power switch wait at least 30 sec if standby come on wait another 30 then turn off main power again and unplug tv for 1 min then plug in turn on main switch wait 30 sec then turn on tv with remote resets system.then buy a ups and always wait at least 30 min after turning tv off to turn back on if not causes power failure and after each press of power button wait 30 seconds before trying again lmk good luck

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1 Answer

Inputs randomly stop registering, screen goes blank


Code 12 indicates no error. Push the Menu and Device buttons after the TV has shut off to get the proper code, not after you unplug and plug it back.

It seems your set is not Mitsubishi WS-55819 so it will help if you can give the exact model.


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Zenith dlp projection t.v. model#z52sz80 t.v. turns off randomly


This solution is for the zenith 56" DLP. Unplug the tv, either from the wall socket or the TV. While the TV is unplugged hold the power button on the TV for 40 seconds. This lets the excessive power drain from the TV. If this does not work call 1-800-243-0000. This is the number for their help line. This is the fix the tech gave me and it worked right away. Hope this helps and have a great day.

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Cant shut down


keep start button pressed 30 seconds, the pc should turn off. If not brutally unplug the power cable. Do a scan disk on restart.

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1 Answer

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probably horizontal output went out,and cap(big Blue box cap).

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