Sony DMX-NV1 Operating Instructions (For DMX-NV1 model sold separately) Operating Instructions Manual page 26

Getting Started
26
3
The receiver is ready.
For horizontal stand-alone use
1
Take the Mounting Knobs and hand twist into place as shown.
Do not over tighten the Mounting Knobs.
2
Thread the bottom Mounting Knob through the bottom hole on the
bracket. (The bracket should not be attached to the back of TV for this
type of use.) The top Mounting Knob should be sitting on the groove.
DC IN 9V
LAN
OUT