Optoma EP721 User Manual

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4
English
Installation
Powering On the Projector
1.  Remove the lens cap. 
2.  Ensure that the power cord and signal cable are securely 
connected.  The Power LED will be Amber.
3.  Turn on the lamp by pressing “Power” button either on the 
top of the projector or on the remote. The Power LED will 
flash green.
  The startup screen will display in approximately 10 seconds. 
The first time you use the projector, you can select your 
preferred language from quick menu after the startup screen 
display.
4.  Turn on your source (computer, notebook, video player, 
etc.). The projector will detect your source automatically.
If you connect multiple sources at the same time, press 
the “Source” button on the control panel or direct source 
key on the remote control to switch between inputs.
Powering On/Off the Projector
Turn on the 
projector first and 
then select the 
signal sources.
2
Power
Lens Cap
1
Power LED