Sony E 15mm f/1.4 G Lens - Manual (Page 7)

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 BLANK key
Temporarily cuts off the image. Press again to
restore the image.
 VOLUME key/ MUTING key
Not in use for the projector.

ID MODE switch (page 30)
Sets an ID mode of the Remote Commander. If
you assign a different ID number to each
projector when multiple projectors are used,
you can control only the projector with the
same ID mode as that of the Remote
Commander.

CONTROL S output terminal
Not in use for the projector.
About Remote Commander operation
 Direct the Remote Commander toward the
remote control receiver.
 The shorter the distance between the Remote
Commander and the projector is, the wider the
angle within which the Remote Commander can
control the projector becomes.
 If there is any obstruction between the Remote
Commander and the remote control receiver on
the projector, the projector may not be able to
receive signals from the Remote Commander.