Optoma HD71 User Manual page 36

User Controls
Options |
Advanced
Auto Power Off (min)
Set the countdown timer interval. The countdown timer will
start, when there is no signal being sent to the projector. Then
projector will automatically power off when the countdown has
finished (in minutes).
Sleep Timer (min)
Set the countdown timer interval. The timer will begin, with or
without a signal input. Then the projector will automatically
power off then the sleep timer countdown has finished.
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