3M DX70i Operator's Manual page 20

User Controls
18
Clear Clear your selection.
Enter
Source Lock Select auto detection all connector ports or lock
current connector port. (see page 28 for more)
Video Choose composite video source.
S-Video Choose S-Video source.
VGA1 Choose primary VGA-In source.
VGA2 Choose secondary VGA-In or SCART source.
DVI Choose DVI-D source.
3M™ Digital Projector
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