Optoma Ex765 Projector User Manual

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User Controls

OPTIONS | 
Lamp Settings
 Lamp Hours
Displays total lamp hours.
 Lamp Reminder
When turned on, a message will appear 30 hours before the end of 
suggested replacement lamp hour. 
 Brightness Mode
 STD: Choose “STD” to dim the projector lamp which will lower 
power consumption and extend the lamp life by up to 
30%. 
 Bright: Choose “Bright” to increase the brightness.
 Lamp Reset
Reset the lamp hour counter after replacing the lamp. 

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Appendices

Image Problems
 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,...

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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 UXGA (1600 × 1200). 
 If you are using a Notebook:
 .  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...

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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 
3.28 to 32.8 feet (.0 to 0.0 meters) from the projector. 
 
See page 8.
  The image is stretched when displaying 6:9 DVD title
 When you play anamorphic DVD or 6:9 DVD, the projector will 
show the best image when the projector display mode is set to 
6:9 in the OSD.
 If...

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Appendices

 Other Problems
 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...

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Appendices

 On Screen Messages 
 Temperature warning:
  
 Fan failed:
  
 Lamp warming:
  
 Replacing the lamp:
  
 Status Message:
 
 
Remote Control Problems
 If the remote control does not work
 Check the operating angle of the remote control is within ±5° 
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...

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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

Lamp	Replacement	Procedure:
.  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.  Lift up and remove the cover. 
5.  Unscrew the three screws on the lamp module. 2
6.  Lift up the lamp handle and remove the lamp module slowly and carefully. 3
To replace the lamp module, reverse the previous steps.
7.   Turn on the projector and use “Lamp Reset” after the lamp...

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Appendices

Compatibility Modes
ModeResolutionV-Sync (Hz) 
AnalogDigital
VGA640 × 35070, 8570
VGA640 × 40085***
VGA640 × 48060, 72, 75, 8560, 72, 75
VGA720 × 40070, 8570
SVGA800 × 60056, 60, 72, 75, 8556, 60, 72, 75
XGA024 × 76860, 70, 75, 8560, 70, 75
SXGA 52 × 86470, 75, 8570, 75, 85
SXGA280 × 02460, 75, 8560, 75, 85
SXGA+ 400 × 0506060
UXGA600 × 2006060
MAC LC 3”640 × 48066.66***
MAC II 3”640 × 48066.68***
MAC 6”832 × 62474.55***...

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Appendices

RS232	Commands
RS232	Pin	Assignments
Pin no.Spec.
N/A
2RXD
3TXD
4N/A
5GND
6N/A
7N/A
8N/A
9N/A
12345
6789
Pin no.NameI/O (From Projector Side)
TXDOUT
2RXDIN
3GNDGND
12
3