NotTaR of Television Sets : Power-on tick-tick-tick or click-click-c..  
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Power-on tick-tick-tick or click-click-click but no other action

A variety of power supply or startup problems can result in this or similar behavior. Possibilities include:

One possible test would be to vary the line voltage and observe the set's behavior. It may work fine at one extreme (usually low) or the other. This might give clues as to what is wrong.

Also see the section: Dead TV with periodic tweet-tweet, flub-flub, or low-low voltage.