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Power problems FISHER PC7627 when turned on, begins to come on and immediately shuts off.

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This is an old tv . You cuold have bad caps in the power supply or the startup section of your set . Sometimes this set employs a regulator IC in the power supply that is going bad , but not shorted out . Last resort maybe a loose connection in the horizontal or hv section . Good luck

Posted on Mar 04, 2008

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When I turn my television on it auto turn off after a few seconds. The light starts to blink when I first turn the tv on and then the Tv just shuts off on its own.


Hello Sir, hi, you have power supply problems, this is caused by a bad part on the main board or on the power supply board to overload, when overload happens, the power supply immediately shuts down to prevent further damage. my first advice is call your dealer for proper service.

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Tv shuts off immediately


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1 Answer

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1 Answer

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1 Answer

I have a Pan. pt 51g30t shuts off immediately


The most likely part is a fault with the convergence board and the main power supply. In many sets like yours when an amp module on the convergence fails the picture will bend out of shape and cause the power supply to shut down
Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929

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2 Answers

TV shuts off seconds after being turned on


This is actually a common problem with this unit and one that Pioneer is aware of... Over time the feed resistors in the convergence circuit change in value and the convergence ICs begin to fail, placing more of a load on the power supply than necessary and stressing components in the SMPS. The fix; Pioneer recommends upgrading the convergence IC's from STK392-110 to STK392-180, change all resistors in the convergence circuit that have changed in value and replace the power supply to repair the unit.

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