Panasonic PT-53TW53 53" Rear Projection HDTV-Ready Television Logo

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Posted on Sep 02, 2007
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Tv won't start

I replace 2 of the stk392-10 to fix the no picture problem, but now my tv won't start the led light blinks 3 times.

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  • Expert 375 Answers
  • Posted on Sep 07, 2007
Anonymous
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Power supply/ b+ voltage

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My tv won't turn on when the on button is pushed, but the power light blinks 5 times

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Hi! I am experiencing the following three

Hi Rafael,

First of all thank you for posting your question here at Fixya.
Please confirm if the brand and model number above is correct.
Blinking of the the LED (yellow and blue) at the front panel indicating that the lamp door cover is not seated properly. This cover will engaged to a micro switch giving the signal to the processor, once it is in open position, the unit will not power up and will experienced that kind of blinking error code. Go back to the lamp door cover and ensure that it is properly seat-in.
3D, 2D, red/green/blue ghost on the picture and letters means that the convergence circuitry gone bad. Symptoms is not connected to the light engine. The faulty parts is the convergence chips(IC). This chips are mounted on the large aluminum heat sink and starts with STKXXXX-XX (X means number). The most common STK chips used on Projection TV's is the STK392-110. You have to replaced them both on the board to resolve the issue(red ghosting). It is necessary also to check the resistance value of the resistors around its circuitry using the multimeter. For more info how to repair a convergence problem, watch the video below.




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