umc-200 hmdi video issues with Samsung 4k Mar 24, 2015 11:36:29 GMT -5 via mobile Quote Select PostDeselect PostLink to PostBack to Top Post by 12wacker on Mar 24, 2015 11:36:29 GMT -5 I just got a Sansung hu9000 4k, and my umc-200 will transmit audio, but no video. Any others have this problem? Cure?