Optoma Gt750 Xl Projector User Manual

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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 
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 
using   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 Menu Settings        
						

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User Controls
Menu Tree
GT750 OSD Menu Tree.xls
Main Menu Sub MenuSettings
ImageDisplay Mode
Brightness-50 ~ +50
Contrast -50 ~ +50
Sharpness 1~15
Color -50 ~ +50
Tint -50 ~ +50
Advanced Gamma Film / Video / Graphics / Standard
0~10
Color Temp. Warm / Medium / Cold
Color
Color Space AUTO / RGB / YUV
AUTO / RGB (0-255) / RGB (16-235) / YUV
Input Source VGA / S-Video / Video / HDMI 1 / HDMI 2
Exit
DisplayFormat
Edge Mask 0~10
Zoom -5 ~ +25
V Image Shift -50 ~ +50
V Keystone -40 ~ +40
3D 3D Mode
3D -> 2D 3D / L / R
3D Format
3D Sync. Invert On / Off
Exit
SetupLanguage
Projection
Menu Location
Signal Automatic Enable / Disable
Frequency (VGA) -5~5
Phase (VGA) 0~63
H. Position (VGA) -5~5
V. Position (VGA) -5~5
Exit ³ Cinema / Bright / Presentation / Game / 
Blackboard / Classroom / 3D / User
#1
#1
BrilliantColor™ 
Red Gain / Green Gain / Blue Gain / Red 
Bias / Green Bias / Blue Bias / Cyan / 
Magenta / Yellow / Reset / Exit
#2
4:3-I / 4:3-II / 16:9 / 16:10 / LBX / Native / 
AUTO
DLP-Link / VESA 3D
Auto / SBS / Top and Bottom / Frame 
Sequential
#3
English / Deutsch / Français / Italiano / 
Español / Português / Svenska / 
Nederlands / Norsk/Dansk / Polski / 
Suomi /  Jmkkdbc  / 
0  / Magyar / 
ý eština /  6³­ŽÓ /  ò‘®Ë  /
ïm®³/  Nžÿm®³/ 
²!! 0‚VQ³/  wNY/ Türkçe
#4 
						

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User Controls
	Please note that the on-screen display (OSD) menus vary according to the signal type selected and the projector model you are using.
	(#1) “Color” and “Tint” are only supported in Video mode. 
	(#2) For HDMI source only.
	(#3) “3D Sync Invert” is only available when 3D is enabled. 
	(#4) “Signal” is only supported in Analog VGA (RGB) signal.
GT750 OSD Menu Tree.xls
Main Menu Sub MenuSettings
SetupSecuritySecurity On / Off
Security Timer Month / Day / Hour
Change Password ³
Exit
Projector ID 0~99
Audio Settings Internal Speaker On / Off
Mute On / Off
Volume 0~10
Audio Input Default / Audio / HDMI
Exit
OptionsSource Lock On / Off
High Altitude On / Off
Information Hide On / Off
Keypad Lock On / Off
Background Color Black / Red / Blue / Green / White
Test Pattern None / Grid / White Pattern
Advanced Direct Power On On / Off
Auto Power Off (min.) 0~180
Sleep Timer (min.) 0~995
Exit
Lamp Settings Lamp Hours Lamp Reminder On / Off
Brightness Mode STD / Bright
Lamp Reset Yes / No
Exit
Reset Yes / No 
						

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User Controls
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.
 Cinema: For home theater.
 Game: For game mode.
 Blackboard: This mode should be selected to achieve optimum 
color settings when projecting onto a blackboard (green).
 Classroom: This mode is recommended for projecting in a 
classroom.
 User: User’s settings.
 3D: Recommended setting for 3D mode enabled. Any further ad-
justments by the user in 3D will be saved in this mode for further 
use.
  Contrast
The contrast controls the degree of difference between the lightest 
and darkest parts of the picture. 
  Press the  to decrease the contrast.
  Press the  to increase the contrast.
  Brightness
Adjust the brightness of the image.
  Press the  to darken image.
  Press the  to lighten the image.     
						

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User Controls
 Color
Adjust a video image from black and white to fully saturated color .
  Press the  to decrease the amount of saturation in the image.
  Press the  to increase the amount of saturation in the image. 
  Tint
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. 
  Sharpness
Adjust the sharpness of the image.
  Press the  to decrease the sharpness.
  Press the  to increase the sharpness. 
	“Color” and “Tint” functions are only supported under Video mode.       
						

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User Controls
IMAGE | Advanced
 BrilliantColor™
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.
 Gamma
This allows you to set up gamma curve type. After the initial setup 
and fi ne tuning is completed, utilize the Gamma Adjustment steps 
to optimize your image output.
  Film: for home theater.
  Video: for video or TV source.
  Graphics: for image source.
  Standard: for standardized setting.
  Color Temp
If set to cold temperature, the image looks more blue. (cold image)
If set to warm temperature, the image looks more red.
(warm image) 
						

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User Controls
 Color Settings
Press   into  the  next  menu  as  below  and  then  use  or  to 
select item. 
   Red/Green/Blue/Cyan/Magenta/Yellow : Use  or  to select 
Red, Green, Blue, Cyan, Magenta and Yellow Colors.
    Reset: Choose “Yes” to return the factory default settings for 
color adjustments.
  Color Space
Select an appropriate color matrix type from AUTO, RGB, 
RGB(0-255)(*), RGB(16-235)(*) or YUV.
 Input Source
Use this option to enable / disable input sources. Press  to enter 
the sub menu and select which sources you require. Press “Enter” 
to finalize the selection. The projector will not search for inputs that 
are not selected.
	(*) For HDMI only.     
						

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User Controls
DISPLAY
 Format
Use this function to choose your desired aspect ratio.
  4:3-I: This format is for 4×3-I input sources.
  4:3-II: This format is for 4×3-II input sources.
  16:9: This format is for 16×9 input sources, like HDTV and DVD 
enhanced for Wide screen TV. 
  16:10: This format is for 16×10 input sources, like widescreen 
laptops.
  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.
  Native: This format displays the original image without any 
scaling.
  AUTO: Automatically selects the appropriate display format.
Aspect ratio
(source detected) 
Resize image
WXGA model
4:3-I960 x 720 center
4:3-II1066 x 800 center
16:91280 x 720 center
16:101280 x 800 center
LBX1280 x 960 center, then get the central 1280 x 800 image to display
NativeResize image of native change to above description not pixels resolution. 
						

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User Controls
 Detail informations about LBX mode:
1.  Some Letter-Box DVDs are not enhanced for 16x9 TVs. In this 
situation, the image will not look right when displayed in 16:9 
mode. 
In this situation, please try to using the 4:3 mode to view the 
DVD.
If the content is not 4:3, there will be black bars around the im-
age in 16:9 display. For this type of content, you can use LBX 
mode to fill the image on the 16:9 display. 
2.  If you use an external anamorphic lens, this LBX mode also 
allows you to watch a 2.35:1 content (include Anamorphic 
DVD and HDTV film source) that support anamorphic wide is 
enhanced for 16x9 Display in a wide 2.35:1 image. 
In this case, there are no black bars. Lamp power and vertical 
resolution are fully utilized.
 Zoom
  Press the  to reduce the size of an image.
  Press the  to magnify an image on the projection screen.
  Edge Mask
Edge mask function removes the noise in a video image. Edge 
mask the image to remove video encoding noise on the edge of 
video source.
 V Image Shift
Shift the projected image position vertically. 
 V Keystone
Press the  or  to adjust image distortion vertically. If the image 
looks trapezoidal, this option can help make the image rectangular .
	Each I/O has 
different setting of 
“Edge Mask”.
	“Edge Mask” and 
“Zoom” can’t work 
at same time.     
						

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English
User Controls
   “3D sync. Invert” function wouldn’t 
save the setting. 
It will set to “Off” 
when powers on and 
changes source.

   3D Format is only supported on 3D 
Timing on page 49.
DISPLAY | 3D 
   3D Mode
  DLP Link: Select “DLP Link” to use optimized settings for DLP 
Link 3D images. (For DLP glasses, please refer to page 15).
  VESA 3D: Select “VESA 3D” to use optimized setting for VESA 
3D images. (For 3D emitter, please refer to page 13).
 3D -> 2D
  3D: Display left and right frames of 3D content.
  L (Left): Display the left frame of 3D content.
  R (Right): Display the right frame of 3D content.
 3D Format
  Auto : When a 3D identification signal is detected, the 3D for -
mat is selected automatically.
  SBS: Display 3D signal in “Side-by-Side” format.
  Top and Bottom: Display 3D signal in “Top and Bottom” format.
  Frame Sequential: Display 3D signal in “Frame Sequential” 
format.
  3D Sync. Invert
 Press the “On” to invert left and right frame contents.
 Press the “Off” for default frame contents.