How to turn on T.V?
1. Turn on t.v. (TV 전원)
2. Make sure you turned on black Settop box. (케이블 전원)
If it still doesn't work try below.
3. Try to push button says "외부입력" (please see the picture)
Try from HDMI 1, then HDMI 2, then HDMI 3.
If it still does not work, please text me.