Page 1: Table Of Contents
RS232 Protocol Function List .... 51 Connecting the Projector ....11 Ceiling Mount Installation ....54 Connect to Computer/Notebook ..11 Optoma Global Offices .....55 Connect to Video Sources ....12 Regulation & Safety Notices .....57 Powering On/Off the Projector ..13 Powering On the Projector ....13 Powering Off the Projector ....
Page 2: Usage Notice
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.
Page 3: Precautions
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.
Page 4 Usage Notice  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 ...
Page 5: Eye Safety Warnings
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.
Page 6: Introduction
Introduction 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. VGA Cable 1.8m Projector with lens cap Power Cord 1.8m  Due to different IR Remote Control 2 ×...
Page 7: Product Overview
Introduction Product Overview Main Unit 1. Control Panel 6. Security Bar 2. Focus Ring 7. Input / Output 3. Lens Connections 4. IR Receivers 8. Power Socket 5. Tilt-Adjustment Feet English...
Page 8: Control Panel
Introduction Control Panel 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 English...
Page 9: Input/Output Connections
Introduction Input/Output Connections HDMI 1 HDMI 2 3D SYNC VGA / YPbPr Out (5V) S-VIDEO VIDEO AUDIO-OUT AUDIO-IN-L AUDIO-IN-R RS-232 1. VGA/YPbPr/ Connector (PC Analog Signal/Component Video Input/HDTV/YPbPr) HDMI 1 Connector HDMI 2 Connector 4. S-Video Input Connector 5. Composite Video Input Connector 6.
Page 10: Remote Control
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.
Page 11: Installation
Installation Connecting the Projector Connect to Computer/Notebook  Due to the HDMI 1 HDMI 2 3D SYNC VGA / YPbPr Out (5V) S-VIDEO VIDEO AUDIO-OUT difference in applications AUDIO-IN-L AUDIO-IN-R RS-232 for each country, some regions may have different accessories.  (*) Optional accessory 1....................Power Cord 2...................*DVI/HDMI Cable...
Page 12: Connect To Video Sources
Installation Connect to Video Sources DVD Player, Set-top Box, HDTV receiver S-Video Output Composite Video Output Audio Output HDMI 1 HDMI 2 3D SYNC VGA / YPbPr Out (5V) S-VIDEO VIDEO AUDIO-OUT AUDIO-IN-L AUDIO-IN-R RS-232  Due to the difference in 1....................Power Cord applications 2....................*HDMI Cable...
Page 13: Powering On/Off The Projector
Installation Powering On/Off the Projector 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.
Page 14: Powering Off The Projector
Installation 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.
Page 15: Adjusting The Projected Image
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.
Page 16: Adjusting The Projector's Focus
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 ...
Page 17 Installation WXGA Screen Size W x H Projection Distance (D) Diagonal length Offset (Hd) (inch) size of (inch) (feet) 16:10 Screen Width Height Width Height wide wide (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...
Page 18: User Controls
User Controls Control Panel & Remote Control Control Panel Using the Control Panel Refer to the “Power On/Off the Projector” section on POWER pages 13-14. Automatically synchronize the projector to the input RE-SYNC source. Enter Confirm your item selection. SOURCE Press “SOURCE”...
Page 19: Remote Control
User Controls Remote Control Using the Remote Control Power On Refer to the “Power On” section on page 13. Refer to the “Power On/Off the Projector” Power Off section on page 14. Select the display mode from Cinema, Mode Bright, Photo, Reference and User. Scale the image at a 4:3-I (960x720) aspect 4:3-I ratio.
Page 20: Using The Remote Control
User Controls Using the Remote Control Enter Confirm your item selection. Source Press “Source” to select an input signal. Automatically synchronizes the projector Re-sync to the input source. Display or exit the on-screen display Menu menus for projector. Press “HDMI 1” to choose source from HDMI 1 HDMI 1 connector.
Page 21: On-Screen Display Menus
User Controls On-screen Display Menus 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 To open the OSD menu, press “Menu” on the Remote Control or Projector Keypad.
Page 22: Menu Tree
User Controls Menu Tree Main Menu Sub Menu Settings Image Display Mode Cinema / Bright / Presentation / Game / Blackboard / Classroom / 3D / User Brightness -50 ~ +50 Contrast -50 ~ +50 Sharpness 1~15 Color -50 ~ +50 Tint -50 ~ +50 Advanced...
Page 23 User Controls Main Menu Sub Menu Settings Setup Security Security On / Off Security Timer Month / Day / Hour Change Password Exit Projector ID 0~99 Audio Settings Internal Speaker On / Off Mute On / Off Volume 0~10 Audio Input Default / Audio / HDMI Exit Options...
Page 24: Image
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. ...
Page 25 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.
Page 26: Image | Advanced
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.
Page 27 User Controls Color Settings Press into the next menu as below and then use select item. Red/Green/Blue/Cyan/Magenta/Yellow: Use to select  Red, Green, Blue, Cyan, Magenta and Yellow Colors. Reset: Choose “Yes” to return the factory default settings for  color adjustments.
Page 28: Display
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 ...
Page 29 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 Each I/O has  mode. different setting of In this situation, please try to using the 4:3 mode to view the “Edge Mask”.
Page 30: Display | 3D
User Controls 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). “3D sync. Invert”  VESA 3D: Select “VESA 3D” to use optimized setting for VESA ...
Page 31: Setup
User Controls SETUP Language Choose the multilingual OSD menu. Press into the sub menu and then use the key to select your preferred language. Press “Enter” to finalize the selection. Rear-Desktop and  Rear-Ceiling are to be used with a translucent screen.
Page 32 User Controls Rear-Ceiling  When selected, the image will appear reversed in upside down position. Menu Location Choose the menu location on the display screen. Projector ID ID definition can be set up by menu (range 0~99), and allow user control an individual projector by RS232.
Page 33: Setup | Security
User Controls SETUP | Security Security On: Choose “On” to use security verification when the turning  on the projector. Off: Choose “Off” to be able to switch on the projector without  password verification. Security Timer Can be select the time (Month/Day/Hour) function to set the number of hours the projector can be used.
Page 34 User Controls If the incorrect password is entered 3 times, the projector will  automatically shut down. If you have forgotten your password, please contact your local  office for support. English...
Page 35: Setup | Signal
User Controls SETUP | Signal “Signal” is only  supported in Analog VGA (RGB) signal. Automatic Automatically selects the singal. If you use this function, the Phase, frequency items are grayed out, and if Signal is not auto- matic, the phase, frequency items will appear for user to manually tune and saved in settings after that for next time projector turns off and on again.
Page 36: Setup | Audio Settings
User Controls SETUP | Audio Settings Internal Speaker Choose the “On” or “Off” to turn on or off the internal speaker. Mute Choose the “On” to turn mute on.  Choose the “Off” to turn mute off.  Volume Press the to decrease the volume.
Page 37: Options
User Controls OPTIONS Source Lock On: The projector will only search current input connection.  Off: The projector will search for other signals if the current  input signal is lost. High Altitude When “On” is selected, the fans will spin faster. This feature is useful in high altitude areas where the air is thin.
Page 38: Options | Advanced
User Controls OPTIONS | Advanced Direct Power On Choose “On” to activate Direct Power mode. The projector will automatically power on when AC power is supplied, without pressing the “ ” key on the projector control panel or on the remote control.
Page 39: Options | Lamp Settings
User Controls OPTIONS | Lamp Settings Lamp Hours Display the projection time. Lamp Reminder Choose this function to show or to hide the warning message when the changing lamp message is displayed. The message will appear 30 hours before suggested replacement of lamp.
Page 40: Appendices
Appendices Troubleshooting If you experience a problem with your projector, please refer to the following information. If a problem persists, please contact your local reseller or service center. No image appears on-screen Ensure all the cables and power connections are correctly and ...
Page 41 Appendices 7. Click on “Show all devices”. Next, select “Standard monitor types” under the SP box; choose the resolution mode you need under the “Models” box. 8. Verify that the resolution setting of the monitor display is lower than or equal to UXGA (1600 × 1200). If you are using a Notebook: ...
Page 42 Appendices Image is out of focus Make sure the lens cap is removed.  Adjust the Focus Ring on the projector lens.  Make sure the projection screen is between the required distance.  See page 16. The image is stretched when displaying 16:9 DVD title When you play anamorphic DVD or 16:9 DVD, the projector will ...
Page 43 Appendices The projector stops responding to all controls If possible, turn off the projector, then unplug the power cord and  wait at least 60 seconds before reconnecting power. Check that “Keypad Lock” is not activated by trying to control the ...
Page 44 Appendices On Screen Messages Temperature warning:  Fan failed:  Lamp warming:  Out of display range:  If the remote control does not work Check the operating angle of the remote control is within ±15°  both horizontally and vertically of one of the IR receivers on the projector.
Page 45: Replacing The Lamp
Appendices Replacing the lamp The projector automatically detects the lamp life. When the lamp life is nearing the end of use, you will receive a warning message. When you see this message, please contact your local reseller or service center to change the lamp as soon as possible. Make sure the projector has been cooled down for at least 30 minutes before changing the lamp.
Page 46: Lamp Replacement Procedure
Appendices The screws on the  lamp cover and the lamp cannot be removed. The projector  cannot be turned on if the lamp cover has not been placed back on the projector. Do not touch the  glass area of the lamp.
Page 47: Compatibility Modes
Appendices Compatibility Modes Computer Compatibility  V-Sync (Hz) H-Sync (KHz) Mode Resolution Anglog Digital Anglog Digital 640 × 350 31.50 31.50 640 × 350 37.90 37.90 640 × 400 37.90 37.90 640 × 480 31.50 31.50 640 × 480 640 × 480 37.90 37.90 640 ×...
Page 48: Video Compatibility
Appendices Computer Compatibility  Mode Resolution V-Sync (Hz) H-Sync (KHz) MAC LC 13” 640 × 480 66.66 34.98 MAC II 13” 640 × 480 66.68 35.00 MAC 16” 832 × 624 74.55 49.73 MAC 19” 1024 × 768 60.24 1152 × 870 75.06 68.68 MAC G4...
Page 49: Input Compatibility
Appendices 3D input Compatibility  GT750 3D support table HDMI 1.4a 3D timing V.Frequency H.Frequency Pixel Rate DLP link VESA 3D Auto 3D format Auto detection of L/R frame 3D to 2D Formats Modes Resolution [Hz] [KHz] [MHz] 720p 1280x720 148.5 Frame Packing 720p...
Page 50: Rs232 Commands And Protocol Function List
Appendices RS232 Commands and Protocol Function List RS232 Pin Assignments Spec. Pin no. (from projector side) English...
Page 51: Rs232 Protocol Function List
Appendices RS232 Protocol Function List Optoma Data and HT Projectors GT750 Baud Rate 9600 Data Bits Parity None Stop Bits Flow Control None UART16550 FIFO Disable Lead Code Projector ID Command ID space variable carriage return Function ASCII Pass Fail...
Page 52 Appendices Lead Code Projector ID Command ID space variable carriage return Arabic n=20 Thai n=21 Language Turkish n=22 Farsi n=23 Front-Desktop ~XX71 n Rear-Desktop Projection Front-Ceiling Rear-Ceiling Top Left ~XX72 n Top Right Menu Location Centre Bottom Left Bottom Right SETUP Automatic n=1/n=0...
Page 53 Appendices Lead Code Projector ID Command ID space variable carriage return a=1/2/3/5/6/7/10 for 4:3/16:9-I/16:9- 4:3/16:9-I/16:9- II(16:10)/Window/LBX/Native/AutoAuto235/Super ~XX127 n II(16:10)/LBX/Native/A wide/4:3-II Aspect Ratio uto/4:3-II a=0/1/2 Warm Medium Cold Color Temperature ~XX128 n Warm/Medium/Cold a=0/1/2/3 for Front- Front-Desktop Rear-Desktop Front-Ceiling Desktop/Rear-Desktop Rear-Ceiling /Front-Ceiling/Rear- Projection Mode ~XX129 n...
Page 54: Ceiling Mount Installation
Ceiling Mount Installation 1. To prevent damage to your projector, please use the Optoma ceiling mount. 2. If you wish to use a third party ceiling mount kit, please ensure the screws used to attach a mount to the projector...
Page 55: Optoma Global Offices
Appendices Optoma Global Offices For service or support please contact your local office. 3178 Laurelview Ct. 888-289-6786 Fremont, CA 94538, USA 510-897-8601 www.optomausa.com services@optoma.com Canada 2420 Meadowpine Blvd., Suite #105 888-289-6786 Mississauga, ON, L5N 6S2, Canada 510-897-8601 www.optoma.ca services@optoma.com Europe...
Page 56 Appendices Benelux BV Randstad 22-123 +31 (0) 36 820 0253 1316 BW Almere +31 (0) 36 548 9052 The Netherlands www.optoma.nl Latin America 3178 Laurelview Ct. 888-289-6786 Fremont, CA 94538, USA 510-897-8601 www.optomausa.com services@optoma.com Korea WOOMI TECH.CO.,LTD. 4F,Minu Bldg.33-14, Kangnam-Ku,...
Page 57: Fcc Notice
Appendices Regulation & Safety Notices This appendix lists the general notices of your projector. FCC notice This device has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC rules.
Page 58: Operation Conditions
Appendices Operation conditions This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference and 2. This device must accept any interference received, including interference that may cause undesired operation.

Optoma GT750E User Manual

Table of Contents

Usage Notice

Introduction

Installation

User Controls

Appendices

Appendices

Quick Links

Table of Contents

Chapters

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Summary of Contents for Optoma GT750E

Table of Contents