Support in this forum is in English only. Please check this >here< how to potentially change the output on an HDX to adjust the TV signal.
As it works with the adapter on another Samsung TV I suggest you work with Samsung support.
The HDX 7000 is end of life since August 2016 so maybe work with a Poly reseller on an option to upgrade to a modern system supporting HDMI.
Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.
---------------- The title Polycom Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. All posts and words are my own & do not represent the views of Employer.
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