Optoma Projector Ew675ut User Manual

							51English
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. 
 BRIGHT: Choose “BRIGHT” to increase the brightness. 
 Image AI:  Choose “Image AI” to improve the contrast of the 
picture. 
 Lamp Reset
Reset the lamp hour counter after replacing the lamp.
	When ambient tem-perature is over 35°C in operating, the projector will switch to STD automatically.
  
						

							52English
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 incorrectly displayed image
 Press “Re-SYNC” on the remote.
 If you are using a PC:
 For Windows 95, 98, 2000, XP, Windows 7:
1.  Open the “My Computer” icon, the “Control Panel” folder, and 
then double click on the “Display” icon.
2. Select the “Settings” tab.
3. Verify that your display resolution setting is lower than or equal 
to UXGA (1600 × 1200).
4. Click on the “Advanced Properties” button.
If the projector is still not projecting the whole image, you will also 
need to change the monitor display you are using. Refer to the 
following steps.
5. Verify the resolution setting is lower than or equal to UXGA 
(1600 × 1200).
 6.  Select the “Change” button under the “Monitor” tab.
Troubleshooting
 If you experience a problem with your projector, 
please refer to the following information. If a 
problem persists, please contact your local  
reseller or service center.  
						

							53English
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 39 for more information.
 Change the monitor color setting on your computer.
 Image has vertical flickering bar
 Use “Frequency” to make an adjustment. See page 39 for more 
information.
 Check and re-configure 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] 
						

							54English
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 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 is reversed
 Select “SETUP  Projection” from the OSD and adjust the  
projection direction.
 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. 
						

							55English
Appendices
 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 57-58.
 LED lighting message
Steady light    
No light  
MessagePOWER/STAND-BY 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
＊ POWER/STANDBY LED be ON when OSD appears, be OFF when OSD disappears.                    
						

							56English
Appendices
 On Screen Messages 
 Temperature warning:
 
 Fan failed:
 
 Lamp warning:
 
 Out of display range:
 
 Filter warning:
 
 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. 
						

							57English
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.”  
						

							58English
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 three 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”.
	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.
12
3
4 
						

							59English
Appendices
Replacing and cleaning the dust 
filter
We recommend cleaning the dust filter after every 300 hours 
of use, clean it more often if the projector is used in a dusty 
environment. 
 
When you see this message, please find following steps for 
cleaning procedure: 
	If dust builds up on the filter is not cleaned, the projector will over-heat and cause problems with the operation and shorten the life of the product.
Cleaning the Dust Filter Procedure:
1. Switch off the power to the projector by pressing the “” button. 
2. Disconnect the power cord.
3. Unscrew the one screw on the cable cover. 1
4. Lift up and remove the cable cover. 2
5. Push the latch by the arrow direction. 3 
6. Remove the dust filter slowly and carefully. 4
7. Clean or replace the dust filter. 5
To install the dust filter, reverse the previous steps.
8.   Turn on the projector and use “Reset Dust Filter” after the dust filter is replaced.
Filter Reset: (i) Press “Menu”  (ii) Select “OPTIONS”  (iii) Select  “Reset Dust Filter”  (iv) Select “Yes”.
1
2
3
45
1
2
3
45 
						

							60English
Appendices
	For widescreen resolution (WXGA), the compatibility support is dependent on Notebook/PC models.
	120Hz input signals may be dependent on graphics cards support.
	Please note that using resolutions other than native 1024 x 768 (XGA model), 1280 x 800 (WXGA model) may result in some loss of image clarity.
	For WXGA model only. 
Compatibility Modes
ModeResolutionV-Sync (Hz)H-Sync (KHz)
AnalogDigitalAnalogDigital
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--
832 × 6247575--
XGA1024 × 768606048.4048.40
XGA1024 × 768707056.5056.50
XGA1024 × 768757560.0060.00
XGA1024 × 768120120--
1152 × 8707575--
WXGA1280 × 800606049.6849.64
WSXGA+(*)1680 × 1050606065.0065.00
SXGA1280 × 1024606063.9863.98
UXGA1600 × 1200606075.0075.00
HD1280 × 720606045.0045.00
HD1280 × 720120120--
HD1920 × 1080303033.8033.80
Computer Compatibility