Sony BRC-Z700 Operating Instructions Manual page 27

C i.LINK (HDV) OUT connector (i.Link 6-pin)
Supplies video and audio signals after they are
converted to comply with HDV standards.
Note
The audio input on this board accepts audio line signals
only. When you input audio signals from a microphone,
etc., it should be connected with a microphone amplifier
so that audio signals with an appropriate audio level can
be input.
Location and Function of Parts
27