My Samsung 709 has just stopped working. Well it did after I unplugged it from the mains. It was working fine up until then. I'm assuming the switch mode PSU has given up. So my question is has anyone had this problem and if so is there a repair method? Is there a repair kit for the PSU? I know I could buy an El Cheapo from Argos for £29.99 but I liked my 709 as a spare.