Optoma Gt750 Xl Projector User Manual

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Installation
Connect to Computer/Notebook
Connecting the Projector
VGA / YPbPrS-VIDEOVIDEO 3D SYNC
Out (5V)
AUDIO-OUT
RS-232
HDMI 1
HDMI 2
AUDIO-IN-R
AUDIO-IN-L
E62405SP
R
1
234
1....................................................................................................Power Cord2...........................................................................................*DVI/HDMI Cable3.....................................................................................................VGA Cable4................................................................................................*RS232 Cable5.........................................................................................*Audio Input Cable 6................................................................................................*Emitter cable
	Due to the difference in applications for each country, some regions may have different accessories.
	(*) Optional accessory 
5
6        
						

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Installation
VGA / YPbPrS-VIDEOVIDEO 3D SYNC
Out (5V)
AUDIO-OUT
RS-232
HDMI 1
HDMI 2
AUDIO-IN-R
AUDIO-IN-L
E62405SP
R
Connect to Video Sources
1....................................................................................................Power Cord2..................................................................................................*HDMI Cable3.........................................................................................VGA/RCA Adaptor4..............................................................................................*S-Video Cable5................................................................................*Composite Video Cable6.................................................................................*Audio Cable Jack/RCA7................................................................................................*Emitter cable
Composite Video Output
DVD Player, Set-top Box, HDTV receiver
S-Video Output
1
32
5
6
	Due to the difference in applications for each country, some regions may have different accessories.
	(*) Optional accessory 
Audio Output
4
6
7        
						

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Installation
Powering On/Off the Projector
	Turn on the projector 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 ON/STANDBY LED will turn Amber. 
3. Turn on the lamp by pressing “” button either on the top of 
the projector or on the remote. The ON/STANDBY LED will 
now turn Green. 
 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 and power saving mode. 
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 “OPTIONS”.  
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 direct source keys 
on the remote control to switch between inputs.
POWER
Lens Cap1
Power 2  
						

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Installation
	Contact the nearest service center if the projector displays these symptoms. See pages 54-55 for more information.
Warning Indicator
When the warning indicators (see below) come on, 
the projector will automatically shutdown: 
 “LAMP” LED indicator is lit red and if “On/Standby” indicator 
flashes amber.
 “TEMP” LED indicator is lit red and if “On/Standby” 
indicator flashes amber. This indicates the projector has 
overheated. Under normal conditions, the projector can be 
switched back on.
 “TEMP” LED indicator flashes red and if “On/Standby”  
indicator flashes amber.  
 Unplug the power cord from the projector, wait for 30 seconds 
and try again. If the warning indicator light up again, please 
contact your nearest service center for assistance. 
Powering Off the Projector
1.   Press the “” button on the remote control or 
on the control panel to turn off the projector. 
The following message will be displayed on the screen. 
  Press the “” button again to confirm otherwise the 
message will disappear after 15 seconds. When you 
press the “” button for the second time, the projector will 
display countdown timer and will shut down.
2. The cooling fans continue to operate for about 10 seconds 
for cooling cycle and the ON/STANDBY LED will Flash 
Green. When the ON/STANDBY LED lights solid Amber, 
the projector has entered standby mode.
 If you wish to turn the projector back on, you must wait 
until the projector has completed the cooling cycle and 
has entered standby mode. Once in standby mode, simply 
press “” button to restart the projector.
3. Disconnect the power cord from the electrical outlet and 
the projector.
4. Do not turn on the projector immediately following a power 
off procedure. 
						

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Installation
Adjusting the Projected Image
Adjusting the Projector’s Height 
The projector is equipped with elevator feet for adjusting 
the image height.
1. Locate the adjustable foot you wish to modify on the 
underside of the projector. 
2. Rotate the adjustable ring clockwise to raise the projector 
or counter clockwise to lower it. Repeat with the remaining 
feet as needed. 
Tilt-Adjustment Feet
Tilt-Adjustment Ring 
						

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Installation
Adjusting the Projector’s Focus
To focus the image, rotate the focus ring until the image is clear.  
 WXGA series: The projector will focus at distances from 1.64 
to 16.40 feet (0.5 to 5.0 meters).
Focus Ring
Adjusting Projection Image Size
 WXGA series: Projection Image Size from 34.0” to 322.0” 
(0.8 to 8.2 meters).
Width
Height
Diagonal
Top View
Side View Projection Distance (D)
Projection Distance (D) Screen
Screen
Screen (W)
Screen (H)
Offset (Hd)          
						

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Installation
 This table is for user’s reference only.
WXGA
Diagonal length (inch) size of 16:10 Screen
Screen Size W x HProjection Distance (D)Offset (Hd)(m)(inch)(m)(feet)
WidthHeightWidthHeightwidewide(m)(feet)
36.30 0.78 0.49 30.78 19.24 0.56 -0.06 0.20 
44.00 0.95 0.59 37.31 23.32 0.68 2.24 0.07 0.24 
60.00 1.29 0.81 50.87 31.80 0.93 3.05 0.10 0.33 
70.00 1.51 0.94 59.35 37.10 1.09 3.56 0.12 0.38 
80.00 1.72 1.08 67.83 42.40 1.24 4.07 0.13 0.44 
90.00 1.94 1.21 76.31 47.69 1.40 4.58 0.15 0.49 
100.00 2.15 1.35 84.79 52.99 1.55 5.09 0.17 0.55 
120.00 2.58 1.62 101.75 63.59 1.86 6.10 0.20 0.66 
150.00 3.23 2.02 127.19 79.49 2.33 7.63 0.25 0.82 
180.00 3.88 2.42 152.62 95.39 2.79 9.16 0.30 0.99 
250.00 5.38 3.37 211.98 132.49 3.88 12.72 0.42 1.37 
302.006.50 4.07 256.07 160.04 4.68 15.36 0.50 1.65 
362.00 7.80 4.87 306.94 191.84 5.6118.41 0.60 1.98  
						

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User Controls
Using the Control Panel
POWERRefer to the “Power On/Off the Projector” section on 
pages 13-14.
RE-SYNCAutomatically synchronize the projector to the input 
source.
EnterConfirm your item selection.
SOURCEPress “SOURCE” to select an input signal.
MenuPress “Menu” to launch the on-screen display 
(OSD) menu. To exit OSD, Press “Menu” again.
AV MUTEMomentarily turns off/on the audio and video.
Four Directional 
Select KeysUse     to select items or make adjust-
ments to your selection.
KeystoneUse   to adjust image distortion caused 
by tilting the projector. (±40 degrees)
Lamp LEDIndicate the projector’s lamp status.
Temp LEDIndicate the projector’s temperature status. 
ON/STAND-BY LEDIndicate the projector’s status.
Control Panel
Control Panel & Remote Control
POWER      
						

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User Controls
Remote Control
Using the Remote Control
Power OnRefer to the “Power On” section on page 13.
Power OffRefer to the “Power On/Off the Projector” section on page 14.
ModeSelect the display mode from Cinema, 
Bright, Photo, Reference and User.
4:3-IScale the image at a 4:3-I (960x720) aspect 
ratio.
4:3-IIScale the image at a 4:3-II (1066x800) 
aspect ratio.
16:9Scale the image at a 16:9 (1280x720) aspect 
ratio.
16:10Scale the image at a 16:10 (1280x800) 
aspect ratio.
LBX
Enable the viewing of the letterboxed nonan-
amorphically enhanced movie at full screen 
width. Part of the original image will be lost if 
the image aspect ratio is less than 2.35:1.
NativeThe input source will be displayed without 
scaling.
BrightnessAdjust the brightness of the image.
ContrastControl the degree of difference between the 
lightest and darkest parts of the picture.
3D FormatFor Broadcast 3D signals in “3D format”.
3DPress the “3D” to turn the 3D OSD menu on/
off.
Vol+ / Vol -Adjust to increase / decrease the volume.   
						

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User Controls
Using the Remote Control
EnterConfirm your item selection.
SourcePress “Source” to select an input signal.
Re-syncAutomatically synchronizes the projector 
to the input source.
MenuDisplay or exit the on-screen display 
menus for projector.
HDMI 1Press “HDMI 1” to choose source from 
HDMI 1 connector.
HDMI 2Press “HDMI 2” to choose source from 
HDMI 2 connector.
VGAPress “VGA” to choose source from 
VGA/SCART/YPbPr connector.
S-VideoPress “S-Video” to choose S-Video 
source.
VideoPress “Video” to choose Composite 
video source.
Four  
Directional 
Select Keys
Use     to select items or 
make adjustments to your selection.