Optoma Projector Ep783s User Manual

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User Controls
Re-Sync Automatically synchronizes the projector to the 
input source.
KeystoneAdjusts image distortion caused by tilting the 
projector.
AV MuteMomentarily turns off/on the audio and video. 
FreezePress “Freeze” to pause the screen image. Press 
this button again to unlock.
Volume +/-Adjusts to increase/decrease the volume.
Display Mode Select the display mode from Presentation, 
Bright, Movie, sRGB, User1 and User2.
 Zoom inZoom in to magnify the digital image.
 Zoom outZoom out to reduce the digital image.
Enter Confirm your item selection.
MenuPress “Menu” to launch the on-screen display 
(OSD) menu. To exit OSD, Press “Menu” again.
Four Directional 
Select Keys
Use     to select items or make adjust-
ments to your selection.
FormatDisplay the “Format” section of the on-screen 
display menu to select the desired aspect ratio.
Lens Function
Display the “Lens Function” section of the 
on-screen display menu. See page 17 for more 
information.
SourcePress “Source” to select an input signal.
WirelessPress “Wireless” to choose wireless source. 
(only functional with optional wireless module)
Using the Remote Control
(*): Mouse controls require USB connec-tion to computer
NoteNote 
						

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HDMI Press “HDMI” to choose source from HDMI 
connector.
BNC Press “BNC” to choose source from YPbPr/RG-
BHV connector.
DVIPress “DVI” to choose source from DVI-D 
source.
VGA-1Press “VGA-1” to choose source from VGA-1/
SCART-1 connector.
Numerical But-
tons
Press “0~9” to input a password in the “Secu-
rity settings”.
S-VideoPress “S-Video” to choose S-Video source.
VGA-2Press “VGA-2” to choose source from VGA-2/
SCART-2 connector.
VideoPress “Video” to choose Composite video 
source.
Using the Remote Control
Using the USB Remote Mouse Control
The remote control for this projector can be used as a remote mouse 
control with the USB cable.
USB 4-pin(type B)USB 4-pin(type A)
USB cableto USB portto USB portWhen the projector is connected to PC via the USB cable, the remote will work as a mouse for control.
NoteNote                               
						

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The Projector has a multi-lingual On-Screen Display menu which 
allows adjustments to the projector settings. The projector will auto-
matically detect the source. 
How to operate 
1. To open the OSD menu, press “Menu” on the Remote Control or 
Projector Keypad.
2  When OSD is displayed, use   keys to select any item in the 
main menu. While making a selection on a particular page, press 
 or “Enter” key to enter sub menu.
3. Use   keys to select the desired item and adjust the settings 
by   key.
4. Select the next item to be adjusted in the sub menu and adjust as 
described above.
5. Press “Enter” to confirm, and the screen will return to the main 
menu.
6. To exit, press “Menu” again. The OSD menu will close and the 
projector will automatically save the new settings.
On-Screen Display Menus
Main Menu
Sub MenuSetting 
						

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Menu Tree
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Image
 Display Mode
There are many factory presets optimized for various types of  
images.
 Presentation: Good color and brightness from PC input.
 Bright: Maximum brightness from PC input.
 Movie: For home theater.
 sRGB: Standardized accurate color.
  User1: User’s own settings.
  User2: The initial default settings of this mode is from Movie 
mode. Any further adjustments by the user in User2 will be 
saved in this mode for future use.
 Brightness
Adjust the brightness of the image.
  Press the  to darken image.
  Press the  to lighten the image.
 Contrast
The contrast controls the degree of difference between the lightest 
and darkest parts of the picture. Adjusting the contrast changes the 
amount of black and white in the image.
  Press the  to decrease the contrast.
  Press the  to increase the contrast.
  Sharpness 
Adjust the sharpness of the image.
  Press the  to decrease the sharpness.
  Press the  to increase the sharpness.
  
						

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 Color
Adjust the Red, Green, Blue, Cyan, Magenta and Yellow colors or 
returns to the factory default settings for advanced adjustment of 
the individual colors. Every colors can be adjusted as below.
 ■ Hue
Adjust the color balance of red and green.
 Press the  to increase the amount of green in the image.
 Press the  to increase the amount of red in the image.
 ■ Saturation
Adjust a video image from black and white to fully saturated 
color.
 Press the  to decrease the amount of color in the image.
 Press the  to increase the amount of red in the image.
 ■ Gain
Use  or  to adjust Red, Green, Blue, Cyan, Magenta and Yellow 
colors for brightness (Gain).
 Reset
Choose “Yes” to return the factory default settings for color adjust-
ments.
Image | Color 
						

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 Degamma
This allows you to choose a degamma table that has been fine-tuned 
to bring out the best image quality for the input.
  Film: for home theater.
  Video: for video or TV source.
  Graphics: for image source.
  PC: for PC or computer source.
  White Peaking
This adjustable item utilizes a new color-processing algorithm 
and system level enhancements to enable higher brightness while 
providing true, more vibrant colors in picture. The range is from 
“0” to “10”. If you prefer a stronger enhanced image, adjust toward 
the maximum setting. For a smoother, more natural image, adjust 
toward the minimum setting.
 Color Temp.
Adjust the color temperature. At “Cold” temperature, the screen 
looks colder; at “Warm” temperature, the screen looks warmer.
 De-interlace (*)
This function converts an interlaced video signal into a progressive 
signal.
  Auto: Automatically switch the mode of Deinterlace.
   Video: Switch Deinterlace mode to video mode for video source 
or TV source.
   Film: Switch Deinterlace mode to film mode for video source or 
TV source.
Image | Advanced
Remark (*): It only support when source is composite, S-video, and 480i/576i via component. 
NoteNote 
						

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 Color Space
Select an appropriate color matrix type from AUTO, RGB or YUV.
 Input Source
Enable input sources. Press  or  into the next menu as below and 
then use  or  to select. Press “Enter” to finalize the selection. 
The projector will not search inputs that are de-selected. 
						

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 Edge Enhancement (*)
You can use the “Off”, 1~5 to adjust the Edge Enhancement in the 
image. 
 Color Vividness (*)
This adjustable item utilizes a new color-processing algorithm and 
enhancements to enable the picture’s vividness to be significantly 
increased.
 B/W Extension (*)
Black and White Extension can stretch the black and white levels to 
automatically increase the contrast of input image. There are many  
preset modes that allow the user to obtain different image effects. (0:
Off/1:On).
Image | Advanced | 
Color Enhancement
Remark (*): It can not support when source is composite, S-video, and 480i/576i via component. 
NoteNote 
						

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 Format
Use this function to choose your desired aspect ratio.
  4:3: This format is for 4x3 input sources not enhanced for Wide 
screen TV.
  16:9 I: This format is for 16x9 input sources, like HDTV and DVD 
enhanced for Wide screen TV. (576i/p)
  16:9 II: This format is for 16x9 input sources, like HDTV and 
DVD enhanced for Wide screen TV.(480i/p)
  Window: When a 4:3 image is bigger than a 16:9 screen, select 
the “Window” mode to fit the image onto the screen without 
changing the projection distance.
Source480i/p576i/p720p1080i/pPC
4:3Scale to 1024 x 768
16:9 IScale to 1024 x 576
16:9 IIScale to 854 x 480
WindowScale to 800 x 600
 
Display