Optoma Ep781 Projector User Manual

English
2
User Controls

Language
 
Language
Choose the multilingual OSD menu. Use the   or  key to select 
your preferred language. 
Press “Enter” to finalize the selection.     

English30
User Controls

 Menu Location
Choose the menu location on the display screen. 
 Projection
 Front-Desktop
The factory default setting.
  Rear-Desktop
When you select this function, the projector reverses the 
image so you can project from behind a translucent screen.
  Front-Ceiling
When you select this function, the projector turns the image 
upside down for ceiling-mounted projection.
  Rear-Ceiling
When you select this function, the projector reverses and 
turns the image upside down....

English
3
User Controls

 
PIP
Choose “On” to select on the PIP screen, Choose “Off” to sel\
ect off 
the PIP screen.
 PIP Position
Choose the PIP screen position on the display screen.
 PIP Source Switch
Press “Enter” to switch PIP screen source. (see page 32)
Management
 Volume
 Press  to decrease the volume.
 Press  to increase the volume.
 RS232 Port
 RS232: Allows RS232 control of an individual projector. 
 Network: Allows LAN via web browser (Internet Exploer) to 
control of projector....

English32
User Controls

PIP RULE TABLE
Sub source
Main source   DVI-DVGAComponet-pS-videoVideo
DVI-D (digital RGB / HDCP)
VGA (analog RGB)
Componet-p (480p/576p/720p/1080i)
S-video
Video
 Logo
Use this function to select your desired startup screen. If you change 
the setting from one to another, when you exit the OSD menu, the 
new setting will take effect on next open. 
 Optoma: The default startup screen of Optoma projector.
 User: Use memorize picture from “Logo Capture”...

English33
User Controls

PIP RULE TABLE
Sub source
Main source   DVI-DVGAComponet-pS-videoVideo
DVI-D (digital RGB / HDCP)
VGA (analog RGB)
Componet-p (480p/576p/720p/1080i)
S-video
Video
 Logo
Use this function to select your desired startup screen. If you change 
the setting from one to another, when you exit the OSD menu, the 
new setting will take effect on next open. 
 Optoma: The default startup screen of Optoma projector.
 User: Use memorize picture from “Logo Capture”...

English3
User Controls

1. Fill  in  a  new  IP,  a  subnet  mask,  a  gateway  and  a  DNS  in  the 
dialogue box .
2. Then  choose  apply  and  press  "Enter"  botton  to  effectuate  the 
configuration process.
3.  Open your web browser and type in from the OSD LAN screen 
then the web page will display as below:
4: Open "Control Panel" to control your projector. 
 
How to use web browser to control your projector
	When you used the projector IP address, you will can not link to...

English
3
User Controls

For example: Use Microsoft Internet Explorer (IE) web browser to contr\
ol the projector 
, the IP address is http: // 10.0.50.100.
Step 1: Find an IP Address (10.0.50.100) from LAN function of projector.
Step 2: Select apply and press "Enter" button to submit function or pres\
s "menu" key to 
exit.
Step 3: To open Network Connections, click Start, click Control Panel, click Network and Internet Connections, and then click Network Connections. Click the...

English36
User Controls
Lamp & Power
 STD Mode
Choose “On” to dim the projector lamp which will lower power 
consumption and extend the lamp life by up to 130%. Choose 
”Off” to return to BRIGHT mode.
 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 countdown timer interval. The countdown timer will start, 
when there is no signal being sent to the...

English37
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 right...

English38
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 
computer.
2.  Press the toggle output settings. example: [Fn]+[F4]
Compaq   
[Fn]+[F4]
Dell    [Fn]+[F8]
Gateway   [Fn]+[F4]
IBM     [Fn]+[F7]
Mac Apple: System Preference  Display...