Same sort of problem here with the 6320 , bizzare thing is though that it works fine for a few days then does its on/off tango until you unplug it and start again . If it was a blown capacitor you would think the fault would be constant... Fault occurs on start up/ 20 minutes into a programme / when you adjust the volume- sometimes unplugging and powering up again cures it , sometimes it takes three or four attempts. As it's out of warranty (3 years old) and if it now needs a new motherboard , methinks it won't be economical to repair and I will add Samsung to my list of TV manufacturers to avoid , Sony are already on the list !
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