Optoma Gt750 Xl Projector User Manual
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41English 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: 1. First, follow the steps above to adjust resolution of the computer. 2. Press the appropriate keys listed below for your notebook manufacturer to send signal out from notebook to projector. Example: [Fn]+[F4] If you experience difficulty changing resolutions or your monitor freezes, restart all equipment including the projector. The screen of the Notebook or PowerBook computer is not displaying your presentation If you are using a Notebook PC Some Notebook PCs may deactivate their own screens when a second display device is in use. Each has a different way to be reactivated. Refer to your computer’s manual for detailed information. Image is unstable or flickering Use “Phase” to correct it. See page 35 for more information. Change the monitor color setting on your computer. Image has vertical flickering bar Use “Frequency” to make an adjustment. See page 35 for more information. Check and reconfigure the display mode of your graphic card to make it compatible with the projector. Acer [Fn]+[F5] Asus [Fn]+[F8] Dell [Fn]+[F8] Gateway [Fn]+[F4] Mac Apple: System Preference Display Arrangement Mirror display IBM/Lenovo [Fn]+[F7] HP/Compaq [Fn]+[F4] NEC [Fn]+[F3] Toshiba [Fn]+[F5]
42English 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 show the best image when the projector display mode is set to 16:9 in the OSD. If you play 4:3 format DVD titles, please change the format to 4:3 in the projector OSD. If the image is still stretched, you will also need to adjust the aspect ratio by referring to the following: Please setup the display format as 16:9 (wide) aspect ratio type on your DVD player. Image is too small or too large Move the projector closer to or further from the screen. Press “Menu” button on the remote control or projector panel, go to “DISPLAY Format” and try the different settings. Image has slanted sides If possible, reposition the projector so that it is horizontally centered on the screen and below the bottom of the screen. Press “ / ” on the projector panel, until the sides are vertical. Image is reversed Select “SETUP Projection” from the OSD and adjust the projection direction. Use of Keystone is not recom-mended.
43English 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 projector with the remote control. Lamp burns out or makes a popping sound When the lamp reaches its end of life, it will burn out and may make a loud popping sound. If this happens, the projector will not turn on until the lamp module has been replaced. To replace the lamp, follow the procedures in the “Replacing the Lamp” section on pages 44-45. LED lighting message Steady light No light MessageON/STANDBY LEDTemp-LEDLamp-LED (Green/Amber)(Red)(Red) Standby State (Input power cord)Amber Power on (Warming)Flashing Green Lamp lightingGreen Power off (Cooling) Flashing Green Error (Over Temp.)Flashing Amber Error (Fan fail)Flashing AmberFlashing Error (Lamp fail)Flashing Amber ＊ ON/STANDBY LED be ON when OSD appears, be OFF when OSD disappears.
44English 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. Make sure there are not any obstructions between the remote control and the projector. Move to within 7 m (±0°) of the projector. Make sure the batteries are inserted correctly. Replace batteries if they are exhausted.
45English 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. Warning: Lamp compartment may be hot! Allow it to cool down before changing the lamp! Warning: To reduce the risk of personal injury, do not drop the lamp module or touch the lamp bulb. The bulb may shat-ter and cause injury if it is dropped. Warning: If ceiling mounted, please use caution when opening the lamp access panel. It is recommended to wear safety glasses if changing the bulb when ceiling mounted. “Caution must be used to prevent any loose parts from fall- ing out of projector.”
46English Appendices Lamp Replacement Procedure: 1. Switch off the power to the projector by pressing the “” button. 2. Allow the projector to cool down for at least 30 minutes. 3. Disconnect the power cord. 4. Unscrew the two screws on the cover. 1 5. Lift up and remove the cover. 2 6. Unscrew the two screws on the lamp module. 3 7. Lift up the lamp handle and remove the lamp module slowly and carefully . 4 To replace the lamp module, reverse the previous steps. 8. Turn on the projector and use “Lamp Reset” after the lamp module is replaced. Lamp Reset: (i) Press “Menu” (ii) Select “OPTIONS” (iii) Select “Lamp Settings” (iv) Select “Lamp Reset” (v) Select “Yes”. 1 2 3 4 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. Hand oil can cause the lamp to shatter. Use a dry cloth to clean the lamp module if it was accidentally touched.
47English Appendices Compatibility Modes ModeResolutionV-Sync (Hz)H-Sync (KHz) AnglogDigitalAnglogDigital VGA640 × 350707031.5031.50 VGA640 × 350858537.9037.90 VGA640 × 400858537.9037.90 VGA640 × 480606031.5031.50 VGA640 × 4806767-- VGA640 × 480727237.9037.90 VGA640 × 480757537.5037.50 VGA720 × 400707031.5031.50 VGA720 × 400858537.9037.90 SVGA800 × 600565635.2035.20 SVGA800 × 600606037.9037.90 SVGA800 × 600727248.1048.10 SVGA800 × 600757546.9046.90 SVGA800 × 600120120-- XGA1024 × 768606048.4048.40 XGA1024 × 768707056.5056.50 XGA1024 × 768757560.0060.00 XGA1024 × 768120120-- WXGA1280 × 800606049.6849.64 SXGA1280 × 1024606063.9863.98 1366 × 7686060-- 1440 × 900606055.9455.94 1680 × 10506060-- SXGA+1400 × 1050606063.9863.98 UXGA1600 × 1200606075.0075.00 WSXGA+1680 × 1050606065.00 65.00 HD1280 × 720606045.0045.00 HD1280 × 720120120-- HD1920 × 10806060-- Computer Compatibility For widescreen resolution (WXGA), the compatibility support is dependent on Notebook/PC models. 120Hz input signals may be dependent on graphics cards support.
48English Appendices Video Compatibility Computer Compatibility ModeResolutionV-Sync (Hz)H-Sync (KHz) MAC LC 13”640 × 48066.6634.98 MAC II 13”640 × 48066.6835.00 MAC 16”832 × 62474.5549.73 MAC 19”1024 × 7687560.24 MAC1152 × 87075.0668.68 MAC G4640 × 4806031.35 i MAC DV1024 × 7687560.00 i MAC DV1152 × 8707568.49 NTSCM (3.58MHz), 4.43 MHz PALB, D, G, H, I, M, N SECAMB, D, G, K, K1, L SDTV/HDTV480i/p, 576i/p, 720p@50Hz/60Hz, 1080i/p@50Hz/60Hz
49English Appendices 3D input Compatibility GT750 3D support table HDMI 1.4a 3D timing FormatsModes Resolution Pixel Rate DLP link VESA 3D Auto 3D format Auto detection of L/R frame 3D to 2D [Hz] [MHz] Frame Packing 720p 1280x720 5075148.5ä ääää720p 1280x720 6090148.5äääää1080p 1920x1080 2454148.5äääää Top and Bottom 720p 1280x720 5037.5 74.25äääää720p 1280x720 6045 74.25äääää1080p 1920x1080 2427 74.25äääääSide by Side (half) 1080i 1920x1080 50(25)33.75 74.25äääää1080i 1920x1080 60(30)33.75 74.25äääää HDMI 1.3 3D timingFormats Modes Resolution Pixel Rate DLP link VESA 3D Auto 3D format Auto detection of L/R frame 3D to 2D [Hz] [MHz] Frame Sequential SVGA 800x600 120 76.373.25ääXX äXGA 1024x768 12097.6115.5ääXX ä720p 1280x720 120/60 ääXX äSide by Side (half)1080i 1920x1080 50(25)33.75 74.25ääXX ä1080i 1920x1080 60(30)33.75 74.25ääXX äTop & Bottom (half)1080i 1920x1080 50(25)33.75 74.25ääXX ä1080i 1920x1080 60(30)33.75 74.25ääXX ä VGA 1.3 3D timingFormats Modes Resolution Pixel Rate DLP link VESA 3D Auto 3D format Auto detection of L/R frame 3D to 2D [Hz] [MHz] Frame Sequential SVGA 800x600 120 76.373.25ääXXX XGA 1024x768 12097.6115.5ääXXX 720p 1280x720 120/60 ääXXX CVBS/S-VideoFormats Modes Resolution Pixel Rate DLP link VESA 3D Auto 3D format Auto detection of L/R frame 3D to 2D [Hz] [MHz] Frame Sequential NTSC 720x480 60 15.73ääXXX PAL 720x576 5015.63ääXXX V.Frequency H.Frequency [KHz] V.Frequency H.Frequency [KHz] V.Frequency H.Frequency [KHz] V.Frequency H.Frequency [KHz]
50English Appendices RS232 Pin Assignments Pin no.Spec. (from projector side) 1N/A 2RXD 3TXD 4N/A 5GND 6N/A 7N/A 8N/A 9N/A 1 2 3 4 5 6 7 8 9 RS232 Commands and Protocol Function List