Optoma Ex551 Projector User Manual

EN-21
Operation
Powering On/Off the Projector
Powering On the Projector:
1. Complete the AC power cord and peripheral signal cable(s) connections.
2. Press   to turn on the projector.
The projector takes a minute or so to warm up. 
3. Turn on your source (computer, notebook, DVD, etc.). The projector 
automatically detects your source.
„If you are connecting multiple sources to the projector 
simultaneously, press SOURCE on the projector or Source on the 
remote control to select your desired signal or...

 EN-22
Adjusting the Projector Height
The projector is equipped with an elevator foot to adjust the image height. To 
raise or lower the image, turn the elevator foot to fine-tune the height.
Note
„To avoid damaging the projector, make sure that the elevator foot is fully retracted before
placing the projector in its carrying case.
Adjusting the Projector Zoom and Focus
1. Focus the image by rotating the focus ring. A still image is recommended for 
focusing.
2. Adjust the image size by rotating the zoom...

EN-23
Adjusting Projection Image Size
Refer to the graphic and table below to determine the screen size and projection 
distance.
Note
„Position the projector in a horizontal position; other positions can cause heat build-up and
damage to the projector.
„Keep a space of 30 cm or more between the sides of the projector.„Do not use the projector in a smoky environment. Smoke residue may build-up on critical
parts and damage the projector or its performance.„Consult with your dealer for special installation...

 EN-24
Menu Operation
The projector has multilingual on-screen display menus that allow you to 
make image adjustments and change a variety of settings.
How to operate
1. Press MENU on the projector or Menu on the remote control to open the
OSD menu.
2. When OSD is displayed, use  /  to select any feature in the main 
menu.
3. After selecting the desired main menu item, press   to enter sub-menu
for feature setting.
4. Use  /  to select the desired item and adjust the settings with  / .
5. Press MENU on...

EN-25
Presentation, Bright, Movie,
sRGB, User, Classroom, 
Black Board, 3D 

 EN-26
Image
Brightness
Brighten or darken the image.
Contrast
Set the difference between light and dark areas.
Color Settings
Adjust the color temperature. At higher temperature the screen looks colder;
at lower temperature, the screen looks warmer. If you select “User”, then you
can change the intensity of each of 3 color (Red, Green, Blue) to customize
user color temperature.
Keystone
Manually correct distorted images resulting from an angled projection.
Zoom
Zoom in and out the images.
Aspect Ratio...

EN-27 There are many factory presets optimized for various types of images.
„Presentation: For computer or notebook.
„Bright: For bright environment.
„Movie: For home theater.
„sRGB: For PC standard color.
„User: Memorize user’s settings.
„Classroom: For projection in the classroom.
„Black Board: For black projection screen type.
„3D: For viewing 3D videos. 
Brilliant Color
Adjusts the Brilliant Color value to extend the exposure range and sharpens
detail for grain free images.
Gamma
Effect the represent...

 EN-28
Signal
Frequency
Adjust the timing of the projector relative to the computer.
Tracking
Adjust the phase of the projector relative to the computer.
H Position (Horizontal Position)
Adjust the image left or right within the projection area.
V Position (Vertical Position)
Adjust the image up or down within the projection area. 

EN-29
Video Image
Color
Adjust a video image from black and white to fully saturated color.
Sharpness
Sharpen or soften the image.
Tint
Shift colors toward red or green.
Sound
Vo l u m e
Adjust the volume level.
Mute
Cut off the sound temporarily. 

 EN-30
Setting
Menu Position
Choose the menu location on the display screen.
Projection
Adjust the picture to match the orientation of the projector: upright or upside-
down, in front of or behind the screen. Invert or reverse the image
accordingly.
Color Space
Select an appropriate color matrix type from RGB,YCbCr/YPbPr.
Lamp Time
Display the lamp’s elapsed operating time (in hours).
Lamp Time Reset
Reset the lamp Hour to 0 hours.
Password
Set or change the password. When the password function is added,...