Optoma Ex555 Projector User Manual

41English
User Controls
 Source Lock
 On: The projector will only search current input connection.
 Off: The projector will search for other signals if the current input signal is lost. 
  High Altitude
When “On” is selected, the fans will spin faster. This feature is 
useful in high altitude areas where the air is thin.
 Information Hide
 On: Choose “On” to hide the info message.
 Off: Choose “Off” to show the “searching” message.
 Keypad Lock
When the keypad lock function is “On”, the control panel...

42English
User Controls
OPTIONS | 
Advanced
 Direct Power On
Choose “On” to activate Direct Power mode. The projector will 
automatically power on when AC power is supplied, without 
pressing the “” key on the projector control panel or on the 
remote control.
 Auto Power Off (min)
Sets the countdown timer interval. The countdown timer will start, 
when there is no signal being sent to the projector. The projector 
will automatically power off when the countdown has finished (in 
minutes).
 Sleep Timer...

43English
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
 BRIGHT: Choose “BRIGHT” to increase the brightness. 
 Eco.: Choose “Eco.” to dim the projector lamp which will lower 
power consumption and extend the lamp life. 
 Eco+:   When Eco+ mode is activated,...

44English
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 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...

46English
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 17.
 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...

47English
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...

48English
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...

49English
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...

50English
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 one screw 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 4 and remove the lamp module slowly and carefully. 5
To replace the lamp module, reverse the previous steps.
8.   Turn on the projector and use “Lamp...