Optoma Dx733 Projector User Manual

English
29

 User Controls

2. Use number button to enter current password, and then press 
“Enter” key again to reveal next OSD menu.
3.  Scroll down to highlight Password, and then press “Enter” to 
activate.
4. Enter new password (4 digits in length) using the number but-
tons on the remote, then press “Enter” to confi  rm
.
5.  Enter new password again and press “Enter” to confi  rm.
Security Mode
■ Security Timer: Can be select the time (month/day/hour) 
function to set the number of hours the...

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User Controls
Lamp Setting
 Projection Hours
Displays the projection time.
 Lamp Hours
Displays the cumulative lamp operating time.
  Reset Lamp Hours
Resets the lamp life hour counter after replacing the lamp. 
 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 end of life.
 ECO Mode
Choose “On” to dim the projector lamp which will lower power 
consumption and extend the lamp life...

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31
Appendices
 Sleep Timer
Sets the countdown timer interval. The timer will begin, with or 
without a signal input. Then the projector will automatically power 
off then the sleep timer countdown has fi  nished.     

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Appendices

Problem: 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.
 Ensure that the “AV Mute” feature is not turned on.
Problem: Left of...

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33

Appendices

5.  Select the “Change” button under the “Monitor” tab.
6.  Click on “Show all devices.” Next, select “Standard monitor 
types” under the SP box; choose the resolution mode you need 
under the “Models” box. 
  If you are using a Notebook:1.  First, follow the steps above to adjust resolution of the com-
puter.
2.  Press the toggle output settings. example: [Fn]+[F4]
   
  If you experience diffi  culty changing resolutions or your monitor 
freezes, restart all equipment...

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Appendices

  Make sure the projection screen is between distance 3.9 to 39.4 feet 
(1.2 to 12.0 meters) from the projector. (See page 15)
Problem: The image is stretched when displaying 16:9 DVDThe projector automatically detects 16:9 DVD and adjusts the aspect ratio by digitizing to full screen with 4:3 default setting.
If the image is still stretched, you will also need to adjust the aspect ratio by referring to the following:
 Please select 4:3 aspect ratio type on your DVD player if...

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35

Appendices

Problem: Message Reminders
 Fan fail: 
 
 Over temperature:  
 
 Power Off:  
 
  Replace the lamp:  
 
            

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Appendices

 Replacing the Lamp
The projector keeps track of the lamp usage.  It will show you a 
warning message 
When you see this message, change the lamp as soon as pos-
sible. Make sure the projector has cooled down for at least 30 
minutes before changing the lamp. Warning: Lamp compartment is hot!  Allow 30 minutes to cool down before changing lamp!
Warning: To reduce the risk of 
personal injury, do not drop the lamp module or touch the lamp bulb. The bulb may shatter and cause...

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37

Appendices

Remark :  “*”com-pressed computer image.
 Compatibility Modes
ModeResolution(ANALOG)(DIGITAL)
V.Frequency(Hz) H.Frequency(kHz) V.Frequency(Hz) H.Frequency(kHz) 
VESA VGA640 x 3507031.57031.5
VESA VGA640 x 3508537.98537.9
VESA VGA640 x 4008537.98537.9
VESA VGA640 x 4806031.56031.5
VESA VGA640 x 4807237.97237.9
VESA VGA640 x 4807537.57537.5
VESA VGA640 x 4808543.38543.3
VESA VGA720 x 4007031.57031.5
VESA VGA720 x 4008537.98537.9
VESA SVGA800 x 6005635.25635.2
VESA SVGA800 x...

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Appendices

VGA-In Connector
RS232 Commands
Pin no.NameI/O (From Projec-tor Side
1TXDOUT
2RXDIN
3GND__
Pin no.Spec.
1R(RED)/Cr
2G(GREEN)/Y
3B(BLUE)/Cb
4NC
5GND
6GND
7GND
8GND
9DDC 5V
10HOT_DET
11NC
12DDC Date
13HS/CS
14VS
15DDC Clock
12345
678910
1112131415
12
3
RS232 Connector