Optoma TW1692 User Manual page 28

User Controls
Image | Advanced | Input Source
Input Source
If all sources
v
are deselected,
the projector
cannot display
any images.
Always leave at
least one source
selected.
English

Use this option to enable / disable input sources. Press ◄ or ► into the
next menu as below and then use ▲ or ▼ to select. Press Enter to finalize
the selection. The projector will not search inputs that are de-selected.