Optoma Ep781 Projector User Manual

English
User Controls

Using the Remote Control
 PowerRefer to the “Power On/Off the Projector” section 
on pages 14-15.
Re-Sync Automatically synchronizes the projector to the 
input source.
KeystoneAdjusts image distortion caused by tilting the 
projector (±16 degrees).
Display 
Format
Display the “Display Format” section of the on-
screen display menu to select the desired aspect 
ratio.
 Laser 
Button  
Aim the remote at the viewing screen, press and 
hold this button to activate the laser...

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User Controls

ClearClear your selection.
EnterConfirm your item selection.
Source LockSelect auto detection all connector ports or lock 
current connector port. (See page 30 for more) 
VideoChoose composite video source.
S-VideoChoose S-Video source.
VGA1Choose primary VGA-In source.
VGA2Choose secondary VGA-In or SCART source.
DVIChoose DVI-D source.   

English
2
User Controls

The Projector has multilingual On Screen Display menus that 
allow you to make image adjustments and change a variety of 
settings. The projector will automatically detect the source. 
How to Operate 
1. 
To open the OSD menu, press “Menu” on the Remote Control or 
Control Panel.
2. When OSD is displayed, use   keys to select any item in the 
main menu.  While making a selection on a particular page, press 
 key to enter sub menu.
3. Use   keys to select the desired item...

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User Controls

Menu Tree   

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User Controls

 Display Mode
There are many factory presets optimized for various types of im-
ages.
 PC: For computer or notebook. (brightest image)
 Photo: For optimum colour at high brightness.
 Video: For playing video in a bright environment.
 sRGB: For standard PC colour. (best colour reproduction)
 User: Memorize user’s settings.
  Brightness
Adjust the brightness of the image.
 Press the  to darken image.
 Press the  to lighten the image.
 Contrast
The contrast controls the...

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User Controls

 Colour Temperature
Adjusts the colour temperature. At higher temperature, the screen 
looks colder; at lower temperature, the screen looks warmer.
Each display mode has its own colour temperature and can memo-
rize user’s selection. For example:
Display modePCPhotoVideosRGBUser
Colour Temp.sRGBLowUserHighMid
When you adjust the colour setting item, the colour temperature 
will be set as “User” automatically. And this set “User” is \
the same 
for all display mode. (See the...

English
2
User Controls

 
Colour Temperature
Adjusts the colour temperature. At higher temperature, the screen 
looks colder; at lower temperature, the screen looks warmer.
Each display mode has its own colour temperature and can memo-
rize user’s selection. For example:
Display modePCPhotoVideosRGBUser
Colour Temp.sRGBLowUserHighMid
When you adjust the colour setting item, the colour temperature 
will be set as “User” automatically. And this set “User” is \
the same 
for all display mode. (See...

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User Controls

 LBX: This format is for non-16x9, letterbox source and for users 
who use external 16x9 lens to display 2.35:1 aspect ratio using 
full resolution. 
Input Signal
Display area
Picture area
Display on Screen
	Ver. Shift (16:9): Image Position at window mode will also be moved accordingly.
 Ver. Shift (16:9)
Adjust the image position up or down, when you select the aspect 
ratio of 16:9.
 Press the  to move the image down.
 Press the  to move the image up.    

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User Controls

 Colour
 Full Range: Adjust the Red, Green and Blue color for all screen. 
 Enhance Individual: Adjust the Red, Green, Blue, Yellow, Cyan 
and Magenta colors for advanced adjustment of the individual 
colors.
Colour 
PC
ULMHS
Photo
ULMHS
Video
ULMHS
sRGB
ULMHS
User
ULMHS
From The Same Colour Setting
When you adjust the colour setting item, the colour temperature 
will be set as “User” automatically. And this set “User” is \
the same 
for all display mode. For example: 
+ Red-...

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User Controls

Different color setting will be memorized at 4 different source 
groups. But they will be same under same source. 
DVI/VGA
Component-p (480p/576p/720p/1080i)
Component-i (480i/576i)
Video / S-Video
When we adjust color setting the current color temperature will be 
memorized before it auto switch to “User”. Because the memorized 
color temperature will be a base of “User”. For example:
1.) Colour temp. is High.
2.) User creates his favorite color based on “High” setting of co\...