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Optoma UHD35x User Manual

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  • Page 1 ® Projector User manual...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SAFETY ....................4 Important Safety Instruction....................... 4 Cleaning the Lens........................5 3D Safety Information ........................ 6 Copyright ........................... 6 Disclaimer ..........................7 Trademark Recognition ......................7 FCC ............................7 Declaration of Conformity for EU countries ................8 WEEE ............................
  • Page 3 Compatible resolutions ......................61 Image size and projection distance ..................67 Projector dimensions and ceiling mount installation ..............68 IR remote codes ........................69 Troubleshooting ........................70 Warning indicators ........................71 Specifications ........................... 74 Optoma global offices ....................... 75 English...

  • Page 4: Safety

    SAFETY 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.

  • Page 5: Cleaning The Lens

    ‡ 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. ‡ See projector enclosure for safety related markings.

  • Page 6: 3D Safety Information

    Warning: Do not use a spray containing flammable gases to remove dust or dirt from the lens. This may cause a fire due to excessive heat inside the projector. Warning: Do not clean the lens if the projector is warming up as this may cause the lens’ surface film to peel off.

  • Page 7: Disclaimer

    Disclaimer The information in this document is subject to change without notice. The manufacturer makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. The manufacturer reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of the manufacturer to notify any person of such revision or changes.

  • Page 8: Declaration Of Conformity For Eu Countries

    Noticee: Canadian users This Class B digital apparatus complies with Canadian ICES-003. Remarque à l'intention des utilisateurs canadiens Cet appareil numerique de la classe B est conforme a la norme NMB-003 du Canada. Declaration of Conformity for EU countries ‡ EMC Directive 2014/30/EC (including amendments) ‡...

  • Page 9: Introduction

    INTRODUCTION Thank you for purchasing an Optoma 4K UHD projector. For full list of features please visit the product page on our website, where you will also find additional information and documentation such as voice control setup and FAQs. Package Overview Carefully unpack and verify that you have the items listed below under standard accessories.

  • Page 10: Product Overview

    INTRODUCTION Product Overview Minimum 100mm Minimum Minimum 100mm 100mm Minimum Minimum 300mm 300mm Minimum 100mm Notee: ‡ Do not block projector intake and exhaust vents. ‡ When operating the projector in an enclosed space, allow at least 30 cm clearance around the intake and exhaust vents.

  • Page 11: Connections

    INTRODUCTION Connections 11 12 Item Item USB Power OUT (5V 1.5A) S/PDIF Connector Connector (only 2ch PCM supported) VGA In Connector 10. 12V Out Connector USB Port 11. Audio In Connector (WiFi dongle/Media Player) RJ-45 Connector 12. Audio Out Connector RS-232 Connector 13.

  • Page 12: Keypad

    INTRODUCTION Keypad Item Item On/Standby LED IR Receiver Lamp LED Four Directional Select Keys Temp LED Menu Information 10. Source Enter 11. Power Re-Sync 12. Keystone Correction Notee: The keypad does not control the home screen. Please use the remote control to navigate. English...

  • Page 13: Remote Control

    INTRODUCTION Remote control Enter Item Item Power On / Off Source Home Return Four Directional Select Keys Enter Mute 10. Display Mode Volume - 11. Option Menu 12. Volume + Notee: ‡ Some keys may have no function for models that do not support these features. ‡...

  • Page 14: Setup And Installation

    Do not operate the projector in any orientation other that table top or ceiling mount. The projector should be horizontal and not tilted either forwards/backwards or left/right. Any other orientation will invalidate the warranty and may shorten the lifetime of the projector lamp or the projector itself. For none standard installation advise please contact Optoma. English...

  • Page 15: Connecting Sources To The Projector

    SETUP AND INSTALLATION Connecting sources to the projector MOLEX Item Item Item USB Cable Audio In Cable 11. HDMI Cable VGA In Cable Audio Out Cable 12. HDMI Dongle RCA Component Cable 12V DC Jack 13. USB Power Cable RJ-45 Cable S/PDIF Out Cable 14.

  • Page 16: Adjusting The Projector Image

    SETUP AND INSTALLATION Adjusting the projector image Image height The projector is equipped with elevator feet for adjusting the image height. Locate the adjustable foot you wish to adjust on the underside of the projector. Rotate the adjustable foot clockwise or counterclockwise to raise or lower the projector. Tilt-Adjustment Feet Tilt-Adjustment Ring Zoom, lens shift, and focus...

  • Page 17: Remote Setup

    SETUP AND INSTALLATION Remote setup Installing / replacing the battery Use a coin to turn the battery cover counterclockwise until the cover opens. Install new battery into the compartment. Remove the old battery and install new one (CR2032). Ensure that the side with a “+” is facing up. Put the cover back.
  • Page 18 SETUP AND INSTALLATION Effective range Infra-Red (IR) remote control sensor is located on top of the projector. Ensure to hold the remote control at an angle within 30° (horizontally) or 20° (vertically) perpendicular to the projector’s IR remote control sensor to function correctly.

  • Page 19: Using The Projector

    USING THE PROJECTOR Powering on / off the projector Enter Enter Powering on Securely connect the power lead and signal/source cable. When connected, the On/Standby LED will turn red. Turn on the projector by pressing the “ ” button on the projector keypad or the remote control. A start up screen will display in approximately 10 seconds and the On/Standby LED will be flashing blue.
  • Page 20 Once the Setup Complete! screen appears, it indicates the projector is ready to use. [Projection screen] [Language screen] [Focus adjustment screen] [Wi-Fi dongle installation screen] [Network screen] [Date and time screen] [Regulation screen] [Optoma Connect screen] English...
  • Page 21 USING THE PROJECTOR Powering off Turn off the projector by pressing the “ ” button on the projector keypad or the remote control. The following message will be displayed: Power Off Power Off? Press power key again. Press the “ ”...

  • Page 22: Selecting An Input Source

    USING THE PROJECTOR Selecting an input source Turn on the connected source that you want to display on the screen, such as computer, notebook, video player, etc. The projector will automatically detect the source. If multiple sources are connected, press the “ ”...

  • Page 23: Home Screen Overview

    USING THE PROJECTOR Home screen overview The Home screen is displayed every time you start the projector. It contains system date and time, system status, icons to access OSD menu, projector settings menu, apps, input sources, and more. To navigate the Home screen, simply use the buttons on the remote control. You can return to the Home screen at any time by pressing “...

  • Page 24: Projector Settings Menu (Osd)

    USING THE PROJECTOR Projector settings menu (OSD) Press “ ” on the remote control or on the Home screen, select the OSD menu “ ” to review projector information or manage various settings related to the image, display, 3D, audio, and setup. General menu navigation Sub Menu Settings...

  • Page 25: Osd Menu Tree

    USING THE PROJECTOR OSD Menu tree Notee: The OSD menu tree items and features are subject to models and region. Optoma reserve the right to add or remove items to improve product performance without notice. Main Sub Menu Sub Menu 2...
  • Page 26 USING THE PROJECTOR Main Sub Menu Sub Menu 2 Sub Menu 3 Sub Menu 4 Values Menu Film Video Graphics Standard(2.2) Gamma BrilliantColor 1 ~ 10 Color Temperature Native Color Temperature [WCG_SDR WCG_HDR WCG_HLG] R [Default] Display Image Settings Color Color Settings Color Matching -50 ~ 50 [Default: 0]...
  • Page 27 USING THE PROJECTOR Main Sub Menu Sub Menu 2 Sub Menu 3 Sub Menu 4 Values Menu Auto [Default] RGB(0~255) Color Space [HDMI Input 1] RGB(16~235) Color Settings Color Space Auto [Default] [HDMI2/ RGB(0~255) VGA/Home/ Component] RGB(16~235) Automatic On [Default] 0 ~ 100 (depends on signal) Frequency [Default: 50]...
  • Page 28 USING THE PROJECTOR Main Sub Menu Sub Menu 2 Sub Menu 3 Sub Menu 4 Values Menu Display PureMotion PureMotion 3 [Default] Internal Speaker On [Default] Audio Off [Default] Mute Volume 0 ~ 10 [Default: 5] Front [Default] Rear Projection Ceiling-top Rear-top Lamp Reminder...
  • Page 29 USING THE PROJECTOR Main Sub Menu Sub Menu 2 Sub Menu 3 Sub Menu 4 Values Menu Off [Default] HDMI Link Mutual [Default] HDMI Link Power On Link PJ --> Device Settings Device --> PJ Off [Default] Power Off Link Green Grid Magenta Grid Test Pattern...
  • Page 30 USING THE PROJECTOR Main Sub Menu Sub Menu 2 Sub Menu 3 Sub Menu 4 Values Menu Off [Default] Display Mode Lock Off [Default] Keypad Lock Off [Default] Information Hide Options Default [Default] Logo Neutral Setup None [Default] Blue Background Color Green Gray...

  • Page 31: Display Menu

    USING THE PROJECTOR Display menu Image settings menu Display Mode There are several predefined display modes that you can choose from to suit your viewing preference. Each mode has been fine-tuned by our expert colour team to ensure superior colour performance for wide range of content. ‡...
  • Page 32 USING THE PROJECTOR ‡ WCG_HLG: This mode enables the wide colour gamut for HLG content providing more accurate and true to life color performance. Notee: When enabled, this mode will activate the shutter which will reduce the brightness. This mode is only available when viewing content with HLG metadata.
  • Page 33 USING THE PROJECTOR Color Adjust a video image from black and white to fully saturated color. Tint Adjust the color balance of red and green. Gamma Set up gamma curve type. After the initial setup and fine tuning is completed, utilize the Gamma Adjustment steps to optimize your image output.
  • Page 34 USING THE PROJECTOR Signal Adjust the signal options. Automatic: Configure automatically the signal (the frequency and phase items are grayed out). If ‡ automatic is disabled, the frequency and phase items will appear for tuning and saving the settings. ‡ Frequency: Change the display data frequency to match the frequency of your computer’s graphic card.
  • Page 35 USING THE PROJECTOR 3D menu 3D Mode Use this option to enable/disable the 3D mode function. 3D Sync Invert Use this option to enable/disable the 3D sync invert function. 3D Format Use this option to select the appropriate 3D format content. ‡...
  • Page 36 USING THE PROJECTOR 4K UHD scaling table: 16 e: 9 screen 480i/p 576i/p 720p 1080i/p 2160p Scale to 2880 x 2160. 16x9 Scale to 3840 x 2160. Get the central 3840 x 1620 image, and then scale to 3840 x 2160 for display. Native mode 1:1 mapping centered.

  • Page 37: Audio Menu

    USING THE PROJECTOR Geometric Correction menu ‡ Four Cornerse: This setting allows the projected image to be adjusted from each corner to make a square image when the projection surface is not level. Notee: While adjusting the Four Corners, the Zoom, Aspect Ratio, and Image Shift menus are disabled.

  • Page 38: Setup Menu

    USING THE PROJECTOR Setup menu Projection Select the preferred projection between front, rear, ceiling-top, and rear-top. Lamp Settings menu 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 39 USING THE PROJECTOR Security menu Security Enable this function to prompt for a password before using the projector. ‡ Off: Choose “Off” to be able to switch on the projector without password verification. ‡ One: Choose “On” to use security verification when the turning on the projector. Notee: The default password is 1234.
  • Page 40 USING THE PROJECTOR Remote Settings menu IR Function Set the IR function setting. One: Choose “On”, the projector can be operated by the remote control from top and front IR receivers. ‡ ‡ Off: Choose “Off”, the projector can’t be operated by the remote control. By selecting “Off”, you will be able to use the Keypad keys.

  • Page 41: Info Menu

    USING THE PROJECTOR Information Hide Enable this function to hide the information message. ‡ Off: Choose “Off” to show the “searching” message. ‡ One: Choose “On” to hide the info message. Logo Use this function to set the desired startup screen. If changes are made, they will take effect the next time the projector is powered on.

  • Page 42: System Settings Menu

    USING THE PROJECTOR System settings menu On the Home screen, select the system settings menu “ ” to configure various system settings. General menu navigation Sub Menu Main Menu Settings When system settings menu is displayed, use the up and down navigation buttons to select any item in the main menu.
  • Page 43 USING THE PROJECTOR System settings menu tree Level 1 Level 2 Level 3 Level 4 Value Wallpaper Optoma style… Short cut 1 APP/ Input Source Short cut 2 APP/ Input Source Short cut 3 APP/ Input Source Home Shortcut Short cut 4...
  • Page 44 USING THE PROJECTOR Level 1 Level 2 Level 3 Level 4 Value Connect via WPS Connect via WPS (Enter PIN) [Pop up dialog] Title: Enter the name for Wi-Fi network Input: (Input text) Button: “Cancel”/ “OK” Add New Network [Pop up dialog] Content: Type of security Button: None, WEP, WPA/WPA2 PSK, 802.1xEAP...
  • Page 45 USING THE PROJECTOR Level 1 Level 2 Level 3 Level 4 Value Keyboard -12:00, -11:00, -10:00, -09:30, -09:00, -08:00, -07:00, -06:00, -05:00, -04:00, -03:30, -03:00, -02:00, -01:00, 00:00, +01:00, +02:00, +03:00, +03:30, +04:00, Select time zone +04:30, +05:00, +05:30, +05:45, +06:00, +06:30, +07:00, +08:00, Date and Time +08:30, +8:45, +09:00, +09:30,...
  • Page 46 USING THE PROJECTOR Personalize menu Home Shortcut Review Home screen shortcuts of all opened apps in each input source. The items cannot repeat except for “Automatic” option which means the system will remember up to six latest apps that have been opened and then will replace app shortcuts so that the latest app will be the first app in the apps list while other apps in the list are shifted by one position.
  • Page 47 USING THE PROJECTOR Network menu Wireless Configure wireless network settings. Wi-Fie: Set the Wi-Fi option to “On” to enable wireless network feature. ‡ ‡ Available Network SSIDe: Select your desired wireless access point and enter or configure the necessary connection parameters (if required), for example password, proxy settings, and IP address. For information, you can review the signal strength.
  • Page 48 Review legal documents including “Terms and Conditions of Use”, “Privacy Policy”, and “Cookies Policy”. Notee: You can review legal documents online as well. Please refer to the following web addresses: ‡ Terms and Conditions of Use: https://www.optoma.com/terms-conditions/ . ‡ Cookies Policy: https://www.optoma.com/cookies-policy/ . ‡...

  • Page 49: Selecting An Input Source

    USING THE PROJECTOR Selecting an input source You can select any input source directly on the Home screen using an input shortcut. Notee: You can personalize shortcut settings in “System Settings menu  Personalize  Home Shortcut”. You can also modify the shortcut order on the Home screen. If the desired input source is not visible on the Home screen, select “...

  • Page 50: Selecting An App

    USING THE PROJECTOR Selecting an app You can select any app directly on the Home screen using an app shortcut. Notee: You can personalize shortcut settings in “System Settings menu  Personalize  Home Shortcut”. If the desired app is not visible on the Home screen, select “ ”...
  • Page 51 USING THE PROJECTOR Creative Cast To get the App, you can do either of the following: ‡ if you are using the mobile device, scan the QR code on the screen. ‡ if you are using the computer, simply go to the link. Then install the Creative Cast app in your computer or mobile device.
  • Page 52 USING THE PROJECTOR Optoma Marketplace With the Optoma Marketplace app, you can search and install any App. File Manager With the File Manager app, you can manage the files stored in the internal storage, external storage, and cloud storage. English...
  • Page 53 USING THE PROJECTOR Media With the Media app, you can play the multimedia files by connecting a USB storage with multimedia content to the projector. Then open the multimedia player app and select the desired files to play. English...

  • Page 54: Supported Multimedia Formats

    USING THE PROJECTOR Supported multimedia formats If you want to play multimedia files, connect a USB storage with multimedia content to the projector. Then open the multimedia player app and select the desired files to play. The projector supports the following multimedia formats: Media Category Decoder Supported File Formats...
  • Page 55 USING THE PROJECTOR Media Category Decoder Supported File Formats Matroska (MKV, MKA) MPEG1/2 Layer2 MPEG transport stream (.ts / .trp /.tp ) MPEG program stream (.DAT /.VOB / .MPG / .MPEG ) MPEG1/2/2.5 Matroska (MKV, MKA) Layer3 MPEG1/2/2.5 MPEG transport stream (.ts / .trp /.tp ) Layer3 MPEG program stream (.DAT /.VOB / .MPG / .MPEG ) Matroska (MKV, MKA)
  • Page 56 USING THE PROJECTOR Document Format Support Version and Format Pages/Lines Limitation Size Limitation PDF 1.0 ~ 1.7 and above Up to 1500 pages (One File) Up to 100MB Kingsoft Writer Document (*.wps) Kingsoft Writer Template (*.wpt) Microsoft Word 97/2000/XP/2003 Document (*.doc) Microsoft Word 97/2000/XP/2003 Template (*.dot) RTF Files (*.rtf) Text Files (*.txt, *.log, *.lrc, *.c, *.cpp, *.h, *.asm, *.s,...
  • Page 57 USING THE PROJECTOR ‡ For Microsoft Word – No support for advanced settings, such as drawing plug-in or table background settings. – Contents outside the defined borders in Microsoft Word will not be displayed. – Not support Bold Text in Simplified Chinese font. ‡...

  • Page 58: Viewing The Status Bar

    This projector supports the Voice control feature such as Alexa / Google Assistant. User can search keyword by “Optoma connect & alexa” & “Optoma connect & google assistant” to get Alexa and Google setup guide on the website by clicking the following link: ‡...

  • Page 59: Maintenance

    MAINTENANCE Replacing the lamp (Maintenance personnel only) The projector automatically detects the lifespan of the light bulb and when the light bulb is at its end, a warning message will appear on the screen. Warning Lamp Warning Lamp life exceeded. When this message appears, please contact your local dealer or service center to replace the light bulb as soon as possible.
  • Page 60 MAINTENANCE Replacing the lamp (continued) Procedure: Switch off the power to the projector by pressing the “ ” button on the projector keypad or the “ ” button on the remote control. Allow the projector to cool down for at least 30 minutes. Disconnect the power cord.

  • Page 61: Additional Information

    ADDITIONAL INFORMATION Compatible resolutions Video compatibility Signal Resolution 480i/p, 576i/p SDTV 720p (50/60Hz), 1080i (50/60Hz), 1080p (24/50/60Hz) HDTV 2160p (24/50/60Hz) Video timing in details: Signal Resolution Refresh Rate (Hz) Notes SDTV (480i) 640 x 480 SDTV (480p) 640 x 480 SDTV (576i) 720 x 576 SDTV (576p)
  • Page 62 ADDITIONAL INFORMATION Timing table for PC: Frequency H. Refresh Rate Signal Resolution (KHz) (Hz) Video Digital Analog Note SVGA 800 x 600 35.2 √ √ 56Hz SVGA 800 x 600 37.9 √ √ 60Hz SVGA 800 x 600 46.9 √ √...
  • Page 63 ADDITIONAL INFORMATION Input signal for HDMI Signal Resolution Refresh Rate (Hz) Notes for Mac SVGA 800 x 600 60/75 Mac 60/75 1024 x 768 60/70/75/120 Mac 60/70/75 SDTV(480i) 640 x 480 SDTV(480p) 640 x 480 SDTV(576i) 720 x 576 SDTV(576p) 720 x 576 HDTV(720p) 1280 x 720...
  • Page 64 ADDITIONAL INFORMATION Extended Display Identification Data (EDID) tables Analog signal Analog Native resolution: 1920 x 1080 @ 60Hz B0/Established B0/Standard B0/Detail Timing B1/Video Mode B1/Detail Timing Timing Timing 800 x 600 @ 56Hz 1280 x 720 @ 60Hz 1920 x 1080 @ 60Hz (Native) 1366x768 @ 60Hz 800 x 600 @ 60Hz 1280 x 800 @ 60Hz...
  • Page 65 ADDITIONAL INFORMATION Digital signal (HDMI 2.0) - HDMI2 Digital Native resolution: 3840 x 2160 @ 60Hz B0/Established B0/Standard B0/Standard Timing B1/Video Mode B1/Detail Timing Timing Timing 800 x 600 @ 56Hz 1280 x 720 @ 60Hz 3840 x 2160 @ 60Hz 1920 x 1080 @ 120Hz 1920 x 1080 @ 240Hz (default)
  • Page 66 ADDITIONAL INFORMATION 3D Timing For Blu-ray 3D (HDMI 1.4a): 2D Support Frame Rate Timing Format 59/60 Hz option: 1920 x 1080p @ 23.98 / 24Hz Frame packing (HDMI1/HDMI2) 1280 x 720p @ 59.94 / 60Hz Frame packing (HDMI1/HDMI2) 1920 x 1080p @ 23.98 / 24Hz Top-and-Bottom (HDMI2/VGA) 1280 x 720p @ 59.94 / 60Hz Top-and-Bottom (HDMI2/VGA)

  • Page 67: Image Size And Projection Distance

    ADDITIONAL INFORMATION Image size and projection distance Screen Size W x H Projection Distance (D) Offset (HD) Diagonal length (inch) size (inch) (feet) of 16e:9 Screen Width Height Width Height Wide Tele Wide Tele (feet) 0.66 0.37 26.15 14.71 1.06 3.46 0.02 0.07...

  • Page 68: Projector Dimensions And Ceiling Mount Installation

    ADDITIONAL INFORMATION Projector dimensions and ceiling mount installation To prevent damage to your projector, please use the Optoma ceiling mount. If you wish to use a third party ceiling mount kit, please ensure the screws used to attach a mount to the projector meet the following specifications: ‡...

  • Page 69: Ir Remote Codes

    ADDITIONAL INFORMATION IR remote codes Enter MTX. Format Data0 Data1 Data2 Data3 Description Power Refer to the “Powering on / off the projector” on / off on page 19. Source Press to select an input signal. Home Press to return to the Home screen. Press to launch the on-screen display Menu...

  • Page 70: Troubleshooting

    ADDITIONAL INFORMATION 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. Image problems No image appears on-screen ‡ Ensure all the cables and power connections are correctly and securely connected as described in the "Installation"...

  • Page 71: Warning Indicators

    ADDITIONAL INFORMATION Other problems The projector stops responding to all controls ‡ If possible, turn off the projector, then unplug the power cord and wait at least 20 seconds before reconnecting power. Lamp burns out or makes a popping sound ‡...
  • Page 72 ADDITIONAL INFORMATION LED lightning messages On/Standby LED Temp LED Lamp LED Message (Red) (Blue) (Red) (Red) Standby state Steady light (Input power cord) Flashing Power on (Warming) (0.5 sec off / 0.5 sec on) Power on and Lamp lighting Steady light Flashing (0.5 sec off / 0.5 Power off (Cooling)
  • Page 73 ADDITIONAL INFORMATION ‡ Lamp warning: Warning Lamp Warning Lamp life exceeded. ‡ Fan failed: Warning FAN LOCKED The projector will switch off automatically Please contact a service center for repair. ‡ Out of display range: HDMI Out Of Range ‡ Power down warning: Power Down Power Down Timer Active...

  • Page 74: Specifications

    ADDITIONAL INFORMATION Specifications Optical Description Texas Instrument DMD, 0.47”(dimension)/ 4K UHD HSSI DMD X1, Technology S451 (Packing typing), with 4-Way XPR actuator Output resolution 4K UHD 3840 x 2160 Maximum input 4096 x 2160 @ 60Hz resolution ‡ Throw ratio: 1.21~1.59, tolerance ± 3% ‡...

  • Page 75: Optoma Global Offices

    ADDITIONAL INFORMATION Optoma global offices For service or support, please contact your local office. Japan 47697 Westinghouse Drive, 888-289-6786 東京都足立区綾瀬3-25-18 Fremont, CA 94539, USA 510-897-8601 株式会社オーエス info@os-worldwide.com www.optomausa.com services@optoma.com コンタク トセンター: 0120-380-495 www.os-worldwide.com Canada Taiwan 47697 Westinghouse Drive, 888-289-6786 12F., No.213, Sec. 3, Beixin Rd.,...
  • Page 76 www.optoma.com...

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