Optoma Projector Eh7500 User Manual

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User Controls
 Brightness Mode
 STD:  Choose “STD” to dim the projector lamp which will lower 
power consumption and extend the lamp life. 
 BRIGHT:   Choose “BRIGHT” to increase the brightness. 
 Image AI:   Image AI improves the contrast of the picture by op-
timizing the brightness of the lamp according to the 
picture content. Image AI helps to ensure that  details 
in dark scenes are visible, whilst maintaining bright and 
vivid images. 
OPTION |  
Information
 Information
Display the...

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Appendices
 No image appears on-screen
 Ensure all the cables and power connections are correctly and 
securely connected as described in the “Installation” section.
 Ensure all the pins of connectors are not bent or broken.
 Check if the projection lamp has been securely installed. Please 
refer to the “Replacing the lamp” section.
 Make sure you have removed the lens cap and the projector is 
switched on.
 Ensure that the “AV Mute” feature is not turned on.
 Partial, scrolling or...

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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 WUXGA (1920 × 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...

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Appendices
 Image is out of focus
 Make sure the projector cap is removed.
 Adjust the Focus function on the projector lens.
 Make sure the projection screen is between the required distance. 
See pages 17-18.
 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...

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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...

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Appendices
 On Screen Messages 
 Temperature warning:
 
 Fan failed:
 
 Lamp warning:
 
 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...

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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...

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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. Hand oil can cause the lamp to shatter. Use a dry cloth to clean the lamp module if it was accidentally touched.
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....

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Appendices
	For widescreen resolution (WXGA), the compatibility support is dependent on Notebook/PC models.
	Please note that using resolu-tions other than native 1920 x 1200 (WUXGA model) may result in some loss of image clarity.
Compatibility Modes
ModeResolutionV-Sync (Hz)H-Sync (KHz)
AnalogDigitalAnalogDigital
VGA640 × 350707031.5031.50
VGA640 × 400858537.9037.90
VGA640 × 480606031.5031.50
VGA640 × 4806767--
VGA640 × 480727237.9037.90
VGA640 × 480757537.5037.50
VGA640 × 480858543.3043.30...

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Appendices
Video Compatibility
NTSCM (3.58MHz), 4.43 MHz
PALB, D, G, H, I, M, N
SECAMB, D, G, K, K1, L
SDTV480i/p@60Hz, 576i/p@50Hz 
HDTV720p@50Hz/60Hz, 1080i@50Hz/60Hz, 1080p@24Hz/50Hz/60Hz
 
ModeResolutionV-Sync (Hz)H-Sync (KHz)
AnalogDigitalAnalogDigital
SXGA+1400 × 10506060--
UXGA1600 × 1200606075.0075.00
WUXGA (#1)1920 × 12006060--
HD1280 × 7205050--
HD1280 × 7206060--
HD1920 × 10802424--
HD1920 × 10805050--
HD1920 × 10806060--
1920 × 1080i50/60--
1920 × 1080p24/25/30/50/60--
1280 ×...