Question about Panasonic PT-56LCZ70 56" HDTV

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When you turn the unit on it just flashes green until a certain time and it will cycle off and flash two times red continuosly. after several tries and around thirty minutes it will finally light off.

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  • Panasonic Master
  • 19,396 Answers

Hi.



The green light is the ordinary led light, the TV still does not turn on because there is a fault.


The red flashing light is not a diagnostic code, but means that the fault had been detected, and the TV protection circuit had started.


When this happen, the protection circuit will shut down all PSU volts apart low +5V to keep the flashing led on. The TV will not respond to control when in this mode.


All you can do is checking all connections, and leaving the TV disconnected from power for about fifteen minutes.


If that does not fix the problem, then there is an internal fault.


In that case contact manufacturer at the number listed on the manual.
You can follow the instructions on this article: Why my TV does not start up and remains in.


Most common fault causing this problem is a defective PSU, but the TV must be disassembled and tested to find out.


If the fault light went off by itself and the TV started normally, then the problem may have been a temporary fault caused by electrostatic charges accumulating on PSU capacitors, that is quite common, particularly after a power surge.
If the problem comes back, that means that there is a component that is starting to fail.

Commonly PSU electrolyitic capacitor, or Convergence failure can cause the problem developing in this way.



Regards.

Posted on Jan 31, 2010

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