No, this is not an inexpensive repair. The set has failed either in the power management circuits or, more seriously, one of the deflection systems has failed.
No, this is not an inexpensive repair. The set has failed either in the power management circuits or, more seriously, one of the deflection systems has failed. The turn on sound is the power management system trying to switch the power ON relay; the current monitoring system is detecting excessive current drain from somewhere in the set and turning itself off. These are among the most serious problems that a set can have. The reason why unplugging the set worked for a while is because the power management was going in to shutdown; when you replugged it caused a reset. You can try it again; a full reset requires at least a 4 to 6 hour disconnect of the power cord. But, it seems your set has permanently failed. It means that whatever was causing the overdrain of current has finally failed to a point that the set will no longer overcome the shut down procedures. Therefore, now is a good time to replace it. It is generally recommended that a set be replaced if it is over 4 years of age and
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