Panasonic tv?

I have the same problem - technician changed main power board after 6 months(just out of warranty period of course)Cost - $US800.00. Now 6 months later exact same problem. I plan to dump mines and buy some other brand after reading panasonic shutdown problems on rutchfield .com forum. TV lasted one year

vernondsingh@yahoo.com
December 2008

Hello,

Sounds like you're in something we technicians like to call "shutdown" mode. Modern TV's usually have some sort of circuit that will, upon sensing an abnormal condition in the television, refuse to allow the unit to operate; this is done to protect certain components (like, for example, your microprocessor) from further and possibly unrecoverable damage. The unit will remain inoperative until the abnormal condition is fix (of course).

The problem here is that without a good set of electronic schematics for your model (and some test equipment) there is no way of knowing which shutdown circuit (there usually is more than one) or abnormal condition is causing shutdown mode. And no, it's not the fuse. Unfortunately, your oonly other option will be to take it to a service center, as this is not going to be an easy fix.

J. Lee, Palmetto Electronics, S. Carolina
April 2005