Optoma Hd81 Projector User Manual

User Controls
English
51

 Component YPbPr
This section explains the operation of SETUP when inputting 
Component YPbPr signals.1)  Enters SETUP as described in previous section.
 Auto Calibration
Refer to “Auto Calibration” function on page 49 for more informa-
tion.
 Y gain  
Adjust the gain of Y.
 Pb gain
Adjust the gain of Pb.
 Pr gain
Adjust the gain of Pr.
 Y bias  
Adjust the bias of Y.
 Pb bias
Adjust the bias of Pb.
 Pr bias
Adjust the bias of Pr.
  Reset
Returns the current menu’s settings to...

User Controls
52
 Analog RGB 
This section explains the operation of SETUP when inputting Ana-
log RGB signals (PC).
1)  Enters SETUP as described in previous section.
White Level0
 White Level 
Allow user adjust White Level when inputting S-Video or Video/
CVBS signals.
 Black Level  
Allow user adjust Black Level when inputting S-Video or Video/
CVBS signals.
 Reset
Returns the current menu’s settings to factory default.
  
  
  
  
  
2) Use “”, “” arrow keys to select the adjustment 
item, press...

Appendices
English
53
 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.
  Not only the RS-232 cable and HDMI cable between projector and 
Box ,but also the cable from source to Box.
 Check if the projection lamp has been securely installed. Please 
refer to the “Replacing the lamp” section.
 Make sure you have removed the...

Appendices
54

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 comput-
er.
2.  Press the toggle output settings. example: [Fn]+[F4]
   
...

Appendices
English
55

 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 dis-tance 4.9 to 39.4 feet (1.5 to 12.0 meters) from the projector.    
See page 25.
 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
56

  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 59.
LED Problems
 LED lighting message
Normal...

Appendices
English
57

  Ps1:1.  When orange and blue of LED show at same time ,the color 
could show light purple.
    When red and blue of LED show at same time, the color 
could show purple.
  Ps2: (*) Break off Rule of HD81:
1. RS-232 communication failure:
  OSD will show “ Projector will shutdown in 30 seconds if 
RS232 connection is not restored”.
  Please check RS232 connection between controller box and pro-
jector.
2.  HDMI communication failure.  
  System will show blue image only....

Appendices
58

 RS232 connection fail: 
 
 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 HD81’s Box. Move to within 6 m (20 ft) of the HD81’s 
Box.
 Make sure batteries are inserted correctly.
 Make sure batteries are exhausted. If so, replace weak batteries in 
the remote control. 
Projector side...

Appendices
English
59

 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 is hot!  Allow it to cool down before changing lamp!
Warning: To reduce the risk...

Appendices
60

Remark :  “*”com-pressed computer image.
Compatibility Modes In Analog input
ModeResolutionV.Frequency (Hz) 
VESA VGA640 x 48060,72,75,85
VESA VGA848 x 48060
VESA VGA720 x 40070,85
VESA SVGA800 x 60056,60,72,75,85
VESA XGA1024 x 76860,70,75,85
VESA WXGA1280 x 76860,70,75
HD1280 x 72060
SXGA+1400 x 105060
Compatibility Modes In Digital input
ModeResolutionV.Frequency (Hz) 
VESA VGA640 x 48060,72,75
US TEXT720 x 40070
VESA SVGA800 x 60060,72,75
VESA XGA1024 x 76860,70,75
Wide1280 x...