Nikon D750 DSLR Camera (Body Only) - Manual (Page 305)

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The optional High-Definition Multimedia Interface (HDMI) cable
(
0 442) or a type C HDMI cable (available separately from third-
party suppliers) can be used to connect the camera to high-
definition video devices. Always turn the camera off before
connecting or disconnecting an HDMI cable.
Tune the device to the HDMI channel, then turn the camera on
and press the
K button. During playback, images will be
displayed on the television screen. Volume can be adjusted
using television controls; the camera controls can not be used.
Viewing Photographs on TV
A Television Playback
Use of an AC adapter and power connector (available separately) is
recommended for extended playback. If the edges of photographs are
not visible in the television display, select
95% for HDMI > Advanced
> Output display size ( 0 279).
Connect to high-definition
device (choose cable with
connector for HDMI device)
Connect to camera