Optoma Projector Ep783s User Manual

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User Controls
 Lens Shift
Shift the projected image.
 Lock: This function can not be used by user.
 Unlock: This function can be used by user.
 Zoom/Focus
Adjust zoom/focus function on the projected image.
 Lock: This function can not be used by user.
 Unlock: This function can be used by user.
Setup |  
  Lens Function 
						

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User Controls
 DHCP
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.
  On: Assign an IP address to the projector from the DHCP server 
automatically.
  Off: Assign an IP address manually.
 IP Address
Select an IP address.
 Subnet Mask
Select subnet mask number.
 Gateway
Select the default gateway of the network connected to the projector.
 DNS
Select DNS number.
 Apply
Press to confirm the settings. 
Setup | Network 
						

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User Controls
How to use web browser to control your projector
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” button to activate 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. 
						

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User Controls
For example: Use Microsoft Internet Explorer (IE) web browser to 
control 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 press “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 connection you want to 
configure, and then, under Network 
Tasks , click Change settings of 
this connection.
Step 4:  On the General tab, under This con-
nection uses the following items, click 
Internet Protocol (TCP/IP), and then 
click “Properties.”
Step 5:  Click Use the following IP address, 
and type in as below:
1) IP address: 10.0.50.XXX
2) Subnet mask: 255.255.0.0
3) Default gateway: 10.0.50.254
Step 6:  To open Internet Options, click IE 
web browser, click Internet Options, 
click the Connections tab and click 
“LAN Settings...”
Step 7:  The Local Area Network (LAN) Set-
ting dialog box appears, In the Proxy 
Server area, cancel the Use a proxy 
server for your LAN check box., then 
click “OK” button twice.
10.0.50.100 
						

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User Controls
Step 8:  Open your IE and type in the IP ad-
dress of 10.0.50.100 in the URL then 
press “Enter” key. The web page will 
display as below:
Step 9:  Open “Control Panel” to control your 
projector. 
						

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User Controls
 Source Lock
  On: The projector will search specified connection port.
  Off: The projector will search for other signals if the current 
input signal is lost. 
  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.
 Information Hide
  On: Choose “On” to hide the searching message.
  Off: Choose “Off” to show the searching message.
 Keypad Lock
When the keypad lock function is on, the control panel will be 
locked, but the projector can still be operated by the remote control. 
If canceling this function, use the remote control and select this func-
tion to “Off”. 
  Background Color
Use this feature to display a “Black”, “Red”, “Blue”, “Green” or 
“White” screen when no signal is available.
 Reset
Choose “Yes” to return the display parameters on all menus to the factory default settings.
Options 
						

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User Controls
 Direct Power On
  On: The projector will automatically power on when AC power 
is supplied, without pressing the “Power/Standby” key on the 
projector control panel or “Power” key on the remote control.
  Off: Turn on the projector to normal mode.
 Signal Power On
  On: The projector will automatically power on when any signal 
is supplied, without turn on the power key on the input equip-
ment control panel or “Power” key on the remote control.
  Off: Turn on the projector to normal mode.
 Auto Power Off
Set the countdown timer interval. The countdown timer will start, 
when there is no signal being sent to the projector. Then projector 
will automatically power off when the countdown has finished (in 
minutes). 
 Sleep Timer
Set 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 finished.  
(in minutes) 
Options | Advanced 
						

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User Controls
 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 by up to 130%. 
 Bright: Choose “Bright” to increase the brightness.
 Lamp Reset
Reset the lamp life hour after replacing the lamp.
Options | 
Lamp Settings 
						

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Appendices
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 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 opened the lens door 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 control or control panel.
 If you are using a PC:
 For Windows 95, 98, 2000, XP:
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 x 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 fol-
lowing steps.
5. Verify the resolution setting is lower than or equal to UXGA 
(1600 x 1200) resolution.
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.  
(See pages 62-63 for details)
	(*) The resolution XGA (1024 x 768) is recommended for computer signal.
NoteNote 
						

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Appendices
 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 UXGA (1600 x 1200) (*)
 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]
  
 
 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 37 for more information.
 Change the monitor color setting on your computer.
 Image has vertical flickering bar
 Use “Frequency” to make an adjustment. See page 37 for more 
information.
 Check and reconfigure 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]
	(*) The resolution XGA (1024 x 768) is recommend for computer signal.
NoteNote