Clicking repeatedly, several clicks sometimes, screen flickers, no power First check if the caps are bad, there are 9x3300u and they can go bad, as well as a 680u/50V and 680u/63V, and a tiny 1000u/10V wedged down by the main heatsink. IF, after replacing these it still doesn't work, check the AC-DETECT pin. If it's bouncing on and off, then there is a problem with the AC detect circuit. I have found it is safe to disable this by disabling the two backwards facing optocouplers by shorting C-E of the phototransistor (on the secondary.) It may also be possible to pull up AC detect with a 220 ohm resistor; it has a 1k resistor in series with it.
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