Optoma Projector Ex525st User Manual

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User Controls

Options | Advanced
 Direct Power On
Choose “On” to turn on Direct Power On mode. The projector 
will automatically power on when AC power is supplied, without 
pressing the “ON/STANDBY” key on the projector control panel 
or “Power” key on the remote control.
 Eco. Standby power (

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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. 
 Brightness Mode
 STD: Choose “STD” to dim the projector lamp which will lower 
power consumption and extend the lamp life by up to 
130%. 
 BRIGHT: Choose “BRIGHT” to increase the brightness.
 Lamp Reset
Choose “Yes” to...

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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

 6.  Select the “Change” button under the “Monitor” tab.
  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 x 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...

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Appendices

 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.  
 Image is out of focus
 Make sure the lens cap is removed.
 Adjusts the Focus Ring on the projector lens. 
 Make sure the projection screen is between the required distance 
1.6 to 12.1 feet (0.5 to 3.7 meters) from the projector. See page 17.
 The image is...

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Appendices

 Intermission 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.
 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...

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Appendices

 Message Reminders
 
 Fan failed:
 
 Temperature warning:
 
 Lamp Warning:
 
 Source Message:
 
 
Remote Control Problems
 If the remote control does not work
 Check the operating angle for the remote control is approximately 
±22.5°.
 Make sure there are no obstructions between the remote  
control and the projector. Move to within 6 m (20 ft) of the  
projector.
 Make sure the batteries are inserted correctly.
 Replace weak batteries in the remote control. 

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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 min-
utes before changing the lamp. 
 Warning: Lamp compartment may be hot! Allow it to cool 
down before changing the lamp!
 Warning: To reduce...

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Appendices

5
1
2
34

Lamp Replacement Procedure:
1.  Switch off the power to the projector by pressing the “Power” button.
2.  Allow the projector to cool down for at least 30 minutes.
3.  Disconnect the power cord.
4.  Use a screwdriver to unscrew the 2 screws from the cover. 
5.  Push up and remove the cover. 
6.  Use a screwdriver to unscrew the 2 screws from the lamp module. 
7.  Pull up the lamp handle carefully. 
8.  Remove the lamp module. 
To replace the lamp module, follow...

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Appendices

Compatibility Modes
ModeResolutionV-Sync (Hz) 
AnalogDigital
VGA640 x 35070, 8570, 85
VGA640 x 4008585
VGA640 x 48060, 72, 75, 8560, 72, 75, 85
VGA720 x 40070, 8570, 85
SVGA800 x 60056, 60, 72, 75, 8556, 60, 72, 75, 85
XGA1024 x 76860, 70, 75, 8560, 70, 75, 85
SXGA1152 x 86470, 75, 8570, 75, 85
SXGA1280 x 102460, 75, 8560, 75, 85
SXGA+1400 x 10506060
UXGA1600 x 12006060
MAC LC 13”640 x 48066.66***
MAC II 13”640 x 48066.68***
MAC 16”832 x 62474.55***
MAC 19”1024 x 76875***
MAC1152...