The blinking indicates that the protection system of the power board from the tv has detected a short on one of its outputs and has cut the power to it to prevent further damage - the clicking is made by the main power relay being disengaged, repeatedly, by the protection.\012\012\012
You should count the blinks - it's an indicator of what might be faulty. If the blinking is continuous then the problem is either in the control processor or the power source itself. To find out which and replace the appropriate board the tv will have to be opened and inspected.If you;re lucky it will be just the electrolytic capacitors on the power board. This is how you replace them
If there's more then you will have to check the voltages on the power board to find out what elsehas failed . If you can't do that then it's time to call a repairman.
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