Heard a pop sound...turned it off then back on and the red light is flashing and it's making a clicking sound

This problems it the causes by the power supply board have dead parts call capacitors.That the board,where the power a/c cord plug into it.U have tools like a soldering iron,desoldering pump or a roll of desoldering braids,a roll of solders?U know basic electronic and can do basic soldering?Yes,check the power supply board for dying and dead capacitors,these capacitors are alway bulges up or puffing up on it tops.Replaced these dying and dead capacitors parts,will get ur tv stop making clicking sounds and the tv power will be stable again,tv will work.Or try website like Ebay.com to buy a whole refurbish power supply board for the replacement.