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Tv wont turn on

Tv starts to turn on.it clicks like everything ok then after a couple seconds,it turns off and power led blinks 12 times.no picure or sound.

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  • Anonymous Jan 01, 2009

    mine has the same problem but blinks 7times

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hello, usually if your panny is blinking it means theres trouble with your power supply but depending on the number of blinks cuased by a fualty or shorted internal board and this will cuase your tv to go into shutdown mode, it depends on your model number and year it was made.
your best bet is to have a qualified service tech give you a estimate for the repair needed. as long as your screen is okay it will be easy for the service tech to locate and fix your trouble

panasonic blinking codes can pin point the troubled internal part, these blinking fualts are cuase by internal boards with malfunctioning circuts info below for 10th gen 2007 2008 plasma model service

12 Blinks SOS:
On the A board, transistor Q2301 monitors the Sound 15V line and the operation of the audio power amplifier IC2301. If the audio output circuit, IC2301, or the 15V lines develops a short to ground, transistor Q2301 goes into conduction and applies a high to pin 118 of the MPU, IC1100, triggering a SOS condition. The power LED blinks 12 times.
12 Blinks SOS: We have also discovered that 12 blinks of the power LED may also be caused by a defective SS board. To determine the source of the shutdown, disconnect the connector D5 and connect the unit to the AC source. If the panel turns on and the LEDs of the SS and SC boards stay on, the problem is on the A board. If the panel does not stay on, the problem is likely to be the SS board.

hope this helps

Posted on Dec 09, 2008

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Posted on Jan 02, 2017

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