Optoma HD90 - Manual (Page 16)

16
English
Installation
Powering On/Off the Projector
Turn on the projec- ™
tor first and then
select the signal
sources.
Powering On the Projector
1. Remove the lens cap. 
2. Securely connect the power cord and signal cable. When
connected, the Power LED will turn red.
3. Turn on the projector by pressing “ ” button either on the
side of the projector or on the remote. The Power LED will
now turn blue. 
The startup screen will display in approximately 10 seconds.
The first time you use the projector, you will be asked to
select the preferred language.
4. Turn on and connect the source that you want to display
on the screen (computer, notebook, video player, etc). The
projector will detect the source automatically. If not, push
menu button and go to “SETUP”.
Make sure that the “Source Lock” has been set to “Off”.
™ If you connect multiple sources at the same time, press the
“SOURCE” button on the control panel or the direct source
keys on the remote control to switch between inputs.
Lens Cap 1
Power 2
Menu Mode
16:9 4:3
Letter-Box Native
Pure Engine 3D Format
LED Brightness
HDMI
Link
2D/3D