Sony ILCE-6700 Help Manual page 456

When [ Picture Profile] is set to PPLUT1-PPLUT4
* However, when [Rec. Media dur HDMI Output] is set to [Off(HDMI Only)], the video is output in 4K.
[REC Control] can be used with external recorders/players that support the [REC Control] function.
When [Time Code Output] is set to [Off], you cannot set [REC Control].
Even when (REC) is displayed, the external recorder/player may not work properly depending on the settings or status of
the recorder/player. Check if the external recorder/player works properly before use.
When [Time Code Output] is set to [On], images may not be output properly to the TV or recording device. In this case, set [Time
Code Output] to [Off].
It is not possible to output audio in 4 channels to other devices connected via HDMI.
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