Repaired my Samsung LCD monitor. Started making a ticking noise yesterday, display flashing on / off one per second. Switching it on and off and setting brightness lower made it work. This morning same thing, but no way to get it working. It was at Samsung for repair in the guarantee period, but now long past guarantee, on 12 hours a day, now for lets see 6 or seven years? So, as no guarantee, nothing to lose to break it open. And that is what is required, just break it open, crack... crack, pulling apart those plastic edges but it opens without damage. Took out the power supply board (switcher) sure enough, electrolytics all swollen, 2 small 1000uF/25V in parallel. Replaced by one 2500uF/35V, and against all odds it is working again. Measured the old caps, maybe 200uF left each, ESR seemed OK though, strange.
Maybe - for the paranoia conspiracy theorists - electrolytics are an evil plot by manufacturers to create a defined short lifespan, so people will buy new stuff. That, and new standards :-)