Optoma Gt750e Projector User Manual

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Table of Contents ............................1
Usage Notice
  ...................................2
Safety Information ...............................2
Precautions
  .........................................3
Eye Safety Warnings
  ..........................5
Product Features
  ................................5
Introduction ......................................6
Package Overview  ..............................6
Product Overview
  ...............................7
Main Unit ..............................................7
Control Panel
  .......................................8
Input/Output Connections
  ....................9
Remote Control
  ..................................10
Installation  .....................................1 1
Connecting the Projector ..................1 1
Connect to Computer/Notebook ........1 1
Connect to Video Sources
  .................12
Powering On/Off the Projector ..........13
Powering On the Projector .................13
Powering 
Off the Projector  .................14
Warning Indicator
  ...............................14
Adjusting the Projected Image  ..........15
Adjusting the Projector’s Height  ........15
Adjusting the Projector’s Focus
  .........16
Adjusting Projection Image Size
  ........16
User Controls  ................................18
Control Panel & Remote Control ......18
Control Panel .....................................18
Remote Control
  ..................................19
On-screen Display Menus  ................21
How to operate  .................................21
Menu Tree
  ..........................................22
IMAGE
  ...............................................24
IMAGE | Advanced
  ............................26
DISPLAY
  ............................................28
DISPLAY | 3D 
  ...................................30
SETUP
  ...............................................31
SETUP | Security
  ...............................33
SETUP | Signal
  ..................................35 SETUP | Audio Settings
 
.....................36
OPTIONS
  ...........................................37
OPTIONS | Advanced
  ........................38
OPTIONS |  Lamp Settings
 .................39
Appendices  ....................................40
Troubleshooting  ................................40
Replacing the lamp
  ...........................45
Compatibility Modes
  .........................47
Computer Compatibility .....................47
Video Compatibility
  ............................48
3D input Compatibility
  ........................49
RS232 Commands and Protocol   
Function List  .....................................50
RS232 Pin Assignments ....................50
RS232 Protocol Function List
  ............51
Ceiling Mount Installation ..................54
Optoma Global Offices
  .....................55
Regulation & Safety Notices
  .............57
Table of Contents 
						

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Usage Notice
Safety Information
The lightning flash with arrow head within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous \
voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
 WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES ARE PRESENT INSIDE THE ENCLOSURE. DO NOT OPEN THE CABINET. REFER SERVICING TO QUALIFIED PERSONNEL ONLY.
Class B emissions limitsThis Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Important Safety Instruction  1. Do not block any ventilation openings. To ensure reliable operation of the projector and to protect from over heating, it is recommended to install the projector in a location that does not block ventilation.  As an example, do not place the projector on a crowded coffee table, sofa, bed, etc. Do not put the projector in an enclosure such as a book case or a cabinet that restricts air flow.  2. Do not use the projector near water or moisture. To reduce the risk of fire and/or electric shock, do not expose the projector to rain or moisture.  3. Do not install near heat sources such as radiators, heaters, stoves or any other apparatus such as amplifiers that emits heat.  4. Clean only with dry cloth.  5.  Only use attachments/accessories specified by the manufacturer.   6. Do not use the unit if it has been physically damaged or abused.  Physical damage/abuse would be (but not limited to): Unit has been dropped. Power supply cord or plug has been damaged. Liquid has been spilled on to the projector. Projector has been exposed to rain or moisture. Something has fallen in the projector or something is loose inside.Do not attempt to service the unit yourself. Opening or removing covers may expose you to dangerous voltages or other hazards. Please call Optoma before you send the unit for repair.  7. Do not let objects or liquids enter the projector. They may touch dangerous voltage points and short out parts that could result in fire or electric shock.  8. See projector enclosure for safety related markings.  9. The unit should only be repaired by appropriate service personnel.   
						

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Usage Notice
Precautions
 
Please follow all warnings, precautions and 
maintenance as recommended in this user’s 
guide.
▀■ Warning- Do not look into the projector’s lens when the lamp is on. The bright light may hurt and damage your eyes.
▀■ Warning- To reduce the risk of fire or electric shock, do not 
expose this projector to rain or moisture.
▀■ Warning- Please do not open or disassemble the projector as 
this may cause electric shock.
▀■ Warning- When replacing the lamp, please allow the unit to 
cool down. Follow instructions as described on pages 
44-45.
▀■ Warning- This projector will detect the life of the lamp itself. 
Please be sure to change the lamp when it shows 
warning messages.
▀■ Warning- Reset the “Lamp Reset” function from the on-screen 
display “OPTIONS | Lamp Settings” menu after 
replacing the lamp module (refer to page 38).
▀■ Warning- When switching the projector off, please ensure 
the cooling cycle has been completed before 
disconnecting power. Allow 90 seconds for the 
projector to cool down.
▀■ Warning- Do not use lens cap when projector is in operation.
▀■ Warning- When the lamp is approaching the end of its lifetime, 
the message “Lamp Warning: Lamp life exceeded.” 
will show on the screen. Please contact your local 
reseller or service center to change the lamp as soon 
as possible.
▀■ Warning- Do not look into or point the laser pointer on your remote control into your or someone’s eyes. Laser 
pointer can cause permanent damage to eyesight.   
						

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Usage Notice
Do:
		Turn off and unplug the power plug from the AC outlet before 
cleaning the product.
		Use a soft dry cloth with mild detergent to clean the display 
housing.
		Disconnect the power plug from AC outlet if the product is 
not being used for a long period of time.
Do not:
		Block the slots and openings on the unit provided for 
ventilation.
		Use abrasive cleaners, waxes or solvents to clean the unit.
		Use under the following conditions:
  - In extremely hot, cold or humid environments.
 Ensure that the ambient room temperature is within 
5 - 35°C.
 Relative Humidity is 5 - 35°C, 80% (Max.), 
non-condensing.
    - In areas susceptible to excessive dust and dirt.
   - Near any appliance generating a strong magnetic field.
   - In direct sunlight.  
						

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Usage Notice
Eye Safety Warnings
 
▀■ Avoid staring/facing directly into the projector beam at all 
times. Keep your back to the beam as much as possible.
▀■ When projector is used in a classroom, adequately supervise 
students when they are asked to point out something on the 
screen.
▀■ In order to minimize the lamp power, use room blinds to 
reduce ambient light levels. 
Product Features
▀■ WXGA (1280x800)  Native resolution
▀■ HD compatible – 1080p supported 
▀■ BrilliantColorTM Technology 
▀■ Security Bar and Kensington Lock 
▀■ RS232 control 
▀■ Rapid shutdown 
▀■ Built-in speaker 
						

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Introduction
Documentation : 
	User’s Manual
	Warranty Card
	Quick Start Card
	WEEE Card   (for EMEA only)
	Due to different applications in each Country, some regions may have different accessories.
Power Cord 1.8m
IR Remote Control
Package Overview
Unpack and inspect the box contents to ensure 
all parts listed below are in the box. If something 
is missing, please contact your nearest customer 
service center.
2 × AAA Batteries
Projector with lens cap VGA Cable 1.8m
VGA/RCA Adaptor    
						

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Introduction
Product Overview
1. Control Panel
2. Focus Ring
3. Lens
4. IR Receivers
5. Tilt-Adjustment Feet
6. Security Bar
7. Input / Output 
Connections
8. Power Socket
675
2
543
14
8
Main Unit 
						

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Introduction
POWER
8
62453
711109
112
1. AV Mute 
2. Menu
3. Source
4. Enter
5. Re-Sync
6. Power
7. Keystone Correction
8. Four Directional Select Keys
9. On/Standby LED 
10. Lamp LED 
11. Temp LED
12. IR Receiver
Control Panel 
						

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Introduction
VGA / YPbPrS-VIDEOVIDEO 3D SYNC
Out (5V)
AUDIO-OUT
RS-232
HDMI 1
HDMI 2
AUDIO-IN-R
AUDIO-IN-L
Input/Output Connections
1.  VGA/YPbPr/  Connector  
(PC Analog Signal/Component Video Input/HDTV/YPbPr) 
2. HDMI 1 Connector
3. HDMI 2 Connector
4. S-Video Input Connector
5. Composite Video Input Connector
6. Audio Output Connector (3.5mm Mini Jack) 
7. 3D Sync Out (5V)
8. Power Socket
9. RS-232 Connector (9-pin)
10. Left RCA Audio Input Connector
11. Right RCA Audio Input Connector
12. KensingtonTM Lock Port
13. Security Bar
7542
912138
1
1011
36 
						

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Introduction
Remote Control
1. Power On
2. Power Off
3. 16:9
4. Native
5. Contrast
6. Brightness
7. Vol+/-
8. Enter
9.  Re-Sync
10. VGA Source
11. Video Source
12. HDMI 2 Source
13. S-Video Source
14. HDMI 1 Source
15. Menu
16. Source
17. 3D
18. 3D format
19. Mode
20. LBX
21. 4:3-I
22. 4:3-II
23. 16:10
24. Four Directional Select 
Keys  
1
2
3
4
5
6
10
11
14
18
19
20
23
13
21
22
12
8
9
24
16
15
177
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