Question about Televison & Video
This is what should happen: the power is delivered from the mains to the power board and it stays in a sleep state - just a small circuit that powers the remote sensor and the control processor is in idle mode = the status led signals that by being red; the command to start, either from the button or the remote, is received and the power source starts in full; this powers all the components of the tv and the processor loads its program = the tv starts and the led is turned to blue when the entire process has been correctly completed.
This is what is actually happening: a part on one of the boards inside the tv has failed and now acts as a short; when the start command comes the power source starts; this time the defective part starts dumping a lot of current and that triggers the protection system of the power source; in face of that excessive current draw it automatically stops the power source - effectively it forces it to shutdown almost instantly so the status led remains on red. It does that to protect the power source from overstress and complete failure.
The only way to find out which part has failed and replace it is to open the tv and test it - a good experience in electronics is required. If you don't have it all you can do is to look for obviously failed components. For that follow this
If you can't see any or this doesn't fixes it then you will have to call a repairman.
Posted on May 17, 2011
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Posted on Jan 02, 2017
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