Video input malfunction.....
video board...locate reputable Samsung service dealer
That HDMI port hub,it shorted.It have intermittent problems,it will work sometimes,sometimes not,best just skip that HDMI port hub.I know i have a samsung LCD tv it have 6 HDMI ports hubs,3 AV RCA cables input functions,and a S-Video input cable port.That plenty,so don't care about that HDMI port hub.
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