Optoma Hd72 Projector User Manual

User Controls
English
31

  Tracking : Synchronizes the signal timing of the display with  
    the graphics card. If you experience an unstable or flickering  
    image, use this function to correct it.
  H. Position: Adjusts the horizontal position.
  V. Position: Adjusts the vertical position.  

User Controls
32

 Menu Location
  Choose the menu location on the display screen.
 Source Lock
 When this function is turned off, the projector will search for other 
signals if the current input signal is lost. When this function is 
turned on, it will search for a specified connection port.
 High Altitude
 Choose “On” to turn on High Altitude mode. Operates the fans at 
full speed continuously to allow for proper high altitude cooling of 
the projector.
 Auto Power Off (min)
 Sets the interval of...

User Controls
English
33

 Lamp Hour
 Displays the cumulative lamp operating time.
 Lamp Reminding
 Choose this function to show or to hide the warning message when 
the changing lamp message is displayed. The message will appear 
up 30 hours before suggested replacement of lamp. 
 Bright Mode
 Choose “On” to increase the brightness. Choose ”Off” to return 
normal mode.
 Lamp Reset
 Reset the lamp life hour after replacing the lamp. 
Options | 
Lamp settings  

Appendices
34

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 the pins of connectors are not crooked 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.
 Partial, scrolling or incorrectly displayed image
 Press...

Appendices
English
35

 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 SXGA+ (1400 x 1050). (*)
  If you are using a Notebook:
  1.  First, follow the steps above to adjust resolution of the    
    computer.
  2.  Press the toggle output...

Appendices
36

 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 4.9 to 39.4 feet (1.5 to 12.0 meters) from the projector.  
  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 in 16: 9 format on projector side.
If you play the LBX format DVD title, please change the...

Appendices
English
37

  If possible, turn off the projector, then unplug the power cord and
  wait at least 20 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 the Lamp”  
  section on page 39.
LED Problems
 LED lighting...

Appendices
38

 Thermal Warning: 
 
   
 
 Replacing the lamp: 
 
   
 
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 not any obstructions between the remote con-
trol and the projector. Move to within 6 m (20 ft) of the projector.
 Make sure batteries are inserted correctly.
 Make sure batteries are exhausted. If so, replace weak batteries in 
the remote control.   

Appendices
English
39

Replacing the lamp
The projector automatically detects the lamp life.  When the 
lamp life is nearing the end of use, you will receive a warn-
ing 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 is hot!  Allow it to cool down before changing lamp!
Warning: To reduce the risk of...

Appendices
40

Remark :  “*”com-pressed computer image.
Compatibility Modes
ModeResolutionV.Frequency (Hz) 
VESA VGA640 x 48060,72,75,85
VESA VGA848 x 48060,75,85
VESA VGA720 x 40070,85
VESA SVGA800 x 60056,60,72,75,85
VESA XGA1024 x 76850,60,70,75,85
VESA WXGA1280 x 76850,60,70,72,75,85
HD1280 x 72050,60,72
* HD1920 x 108050,60,72
* SXGA1280 x 102450,60,70,72,75,85
* SXGA+1400 x 105050,60,70,72,75
* MAC1152 x 87075.06
 MAC G4640 x 48060
i MAC DV1024 x 76875