The video signal output from the SDI terminal and the HDMI OUT terminal depends on the clip's video configuration and on various menu settings.
Output will be from either the SDI terminal or the HDMI terminal, and the camera will switch the output automatically.

(NOTE: If the camera detects an HDMI connection, then the SDI terminal will be disabled and the HDMI terminal will be active. Signals cannot be output from the SDI terminal and HDMI terminal simultaneously. To output signals from the SDI terminal, make sure the HDMI OUT terminal does not have an HDMI cable connected to it.)

Below are the Recording Video Signal Configuration and Video Output Configuration by Terminal, and the Playback Video Signal Configuration and Video Output Configuration by Terminal: