Optoma Projector Ep783s User Manual

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Introduction
Remote Control with Mouse Function and
Laser Pointer
1.   Power On/Off
2.   Re-Sync
3.   Keystone +/-
4.   Page Up
5.   Page Down 
6.   Laser LED
7.   AV mute
8.   Freeze
9.   Laser Button
10.   Display Mode
11.   Zoom in
12.   Zoom out
13.   Volume +/-
14.   PC/Mouse Control
15.   Mouse Right Click
16.   Mouse Left Click
17.   Enter
18.   Menu
19.   Four Directional Select 
Keys
20.   Lens Function
21.   Format
22.   Source
23.   VGA-1 Source
24.   VGA-2 Source
25....

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Installation
Connecting the Projector
Connect to Computer/Notebook
1. ................................................................................................................Power Cord2. .................................................................................................Audio Output Cable3. ..................................................................................................................VGA Cable4....

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Installation
Connect to Video
1. ................................................................................................................Power Cord2. .....................................................Composite Video Cable (Optional Accessory)3. ..............................................................Audio Input Cable (Optional Accessory)4. .................................................................................................................VGA Cable5....

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Installation
Powering On the Projector
1. Remove the lens cap. 
2. Ensure that the power cord and signal cable are securely 
connected.  The Power LED lights red.
3. Turn on the lamp by pressing “Power/Standby” button  
either on the top of the projector or pressing “Power” button 
on the remote. The Power LED will turn blue.
 The startup screen will display in approximately 10 seconds. 
The first time you use the projector, you can select your 
preferred language from quick menu...

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Installation
Warning Indicator
 When the “LAMP” indicator lights red, the projector will 
automatically shut itself down. Please contact your local 
reseller or service center. See pages 62-63. 
 When the “TEMP” indicator lights red, it indicates the pro-
jector has overheated. The projector will automatically shut 
itself down.
  Under normal conditions, the projector can be switched on 
again after it has cooled down. If the problem persists, you 
should contact your local...

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Installation
Adjusting the Projected Image
Adjusting the Projector’s Height
The projector is equipped with elevator feet for adjusting the 
image height.
 To raise/lower the image:
1.   Locate the elevator foot you wish to modify on the under 
side of the projector.
2.   Rotate the elevator foot counter clockwise to raise the pro-
jector or clockwise to lower it. Repeat with the remaining 
feet as needed.
3.   Reset the projector on its feet and re-adjust as needed.
Elevator Feet 

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Installation
Adjusting the Projector’s Zoom / Focus
The  projector  will  focus  at  distances  from  3.9  to  39.4  feet  (1.2  to 
12.0 meters). 
▀■ Adjusting the Projector’ Zoom
1.  Press “Zoom/Focus” button, you can see the “Unlock zoom/fo-
cus?” message on the screen.
2.  Press “Yes” and   the backlight will turn green, then you can 
use   or  to zoom in or zoom out.
▀■ Adjusting the Projector’ Focus
1.  Press “Zoom/Focus” button, you can see the “Unlock zoom/fo-
cus?” message...

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Installation
Adjusting Projection Image Size
Maximum shift
Maximum shift
Screen
Vertical DirectionHorizontal Direction
Left sideRight side
Screen Height (H)
Distance (L)
Screen Width (W)
XGA (1024 x 768)Standard Lens (1.2m~12m)Long Throw Lens (1.8m~20m)
Screen SizeThrow Distance (L)Throw Distance (L)
4:3WideTeleWideTele
Throw Ratio2.002.402.905.50
(inch)(m)(feet)(m)(feet)(m)(feet)(m)(feet)
301.24.01.54.81.85.83.411.0
602.48.02.99.63.511.66.722.0
1004.113.34.916.05.919.311.236.6...

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User Controls
Control Panel & Remote Control
There are two ways for you to control the functions:  
Control Panel and Remote Control.
Using the Control Panel
 Power/Stand-
by 
Power LED
Refer to the “Power On/Off the Projector” sec-
tion on pages 14-15.
Indicate the projector’s status.
Lamp LEDIndicate the projector’s lamp status.
Temp LEDIndicate the projector’s temperature status.
MenuPress “Menu” to launch the on-screen display 
(OSD) menu. To exit OSD, Press “Menu” again....

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User Controls
Using the Remote Control
 Power  Refer to the “Power On/Off the Projector” sec-
tion on pages 14-15.
Laser ButtonAim the remote at the viewing screen, press 
and hold this button to activate the laser 
pointer.
Laser Indicator 
LEDIndicate the laser’s status.
PC/Mouse con-
trol (*)
The PC/Mouse control can be used to con-
trol mouse movement. The mouse function is 
enabled using the USB cable to connect your 
computer and the projector.
 L Button (*)Mouse left click....