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I have a Panasonic PT56LCX16.....Just replaced bulb , played one day & now it's giving me a 7 code (led) . Has no pic no sound . The fan will run about 2 minutes when plugged up then it turns off .Could you help me with this . Could you give me the list of trouble codes for this set. Thanks JM45

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  • jffryjrdn Mar 18, 2011

    Thanks for your help .... I really appreciate it. JM45

  • jffryjrdn Mar 18, 2011

    Thanks for the information.... Jm45

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Hi.

7 Blinks is Abnormal Voltage (+17V, +9V, +5V line) for LCD Drive C.B.A.

Check that the bulb is correctly installed. The fault is fixed testing PSU and then testing the LCD drive CBA in picture below:

I have a Panasonic PT56LCX16.....Just - ginko_94.gif

Posted on Mar 18, 2011

  • Ginko
    Ginko Mar 18, 2011

    Hi.

    I wanted to add that the most frequent fault is not the Drive CDA.

    Problem can be a contact or the power CDA. The PSU is the most common problem triggering 7 blinks. +17V, +9V, +5V DC from PSU must be tested. The +17V, +9V lines must be jumped if the TV is in error mode, +5V is on. The base board must also be tested. If the rest is OK, then the tech check the LCD drive.

    All the best.

    Ginko.


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