Optoma Ep781 Projector User Manual

English
Introduction

Control Panel
1. IR Receiver
2.  Power/Standby LED 
3.  Temp Indicator LED
4.  Lamp Indicator LED
5.  Keystone +/-
6.  Re-Sync
7.  Power/Standby
8.  Four Directional Select Keys
9.  Menu (On/Off)
10.  Source Select
11.  Enter
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Introduction

Connection Ports
1. DVI-D Input Connector (PC Digital/HDTV/HDCP Input)
2.  VGA1-In Connector (PC Analog signal/HD/Component 
Video Input)
3.  Audio Input Connector (For DVI-D or VGA1-In)
4.  S-Video Input Connector
5.  Audio Input Connector (For S-Video or Composite)
6.  Composite Video Input Connector
7.  Networking Connector RJ45
8.  Monitor Loop-through Output Connector
9.  VGA2-In SCART Connector (PC Analog signal/SCART 
RGB/HD/Component Video Input)
10.  Audio Input...

English
Introduction

Remote Control with Mouse Function and 
Laser Pointer
1. Power
2.  Re-Sync
3.  Keystone Correction
4.  Display Format
5.  Mouse
6.  Mouse Right Click
7.  Page Up
8.  Page Down
9.  Four Directional Select 
Keys
10.  Enter
11.  S-Video Source
12.  Composite Video 
Source
13.  DVI Source
14.  Source Lock
15.  Button LED
16.  Laser Button
17.  AV Mute
18.  Freeze
19.  Display Mode
20.  Mouse Left Click
21.  Zoom In
22.  Zoom Out
23.  Clear 
24.  Menu
25.  VGA1 Source
26....

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Installation

Connecting the Projector
	Due to the difference in applications for each country, some regions may have different accessories.
1.........................................................................\
......................................Power Cord2.........................................................................\
........................................USB Cable3.........................................................................\...

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3
Installation

Connect the Video
	Due to the difference in applications for each country, some regions may have different accessories.
1.........................................................................\
......................................Power Cord2.........................................................................\
.................Composite Video Cable3.........................................................................\
..........................Audio Input Cable...

English
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 will turn red.
3.  Turn on the lamp by pressing “Power/Standby” button on 
the control panel. And the Power LED will turn green.
4.  Turn on your source (computer, notebook, video player, 
etc.).  The projector will detect your source automatically 
within  “Management” menu; check that “Source Lock” has 
been set to “Off”.
	If the...

English
Installation

Warning Indicator
 When the “TEMP” indicator turns red, it indicates the pro-
jector has overheated. The projector will automatically shut 
itself down.   
  When the “LAMP” indicator turns red, it indicates a prob-
lem with the lamp.  Turn off the projector and disconnect the 
power cord from the electrical outlet, then contact your local 
dealer or our service center. See page 45. 
  When the “LAMP” indicator flashes red, it indicates the 
fan has failed.  Stop using...

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Installation

Adjusting the Projected Image
Adjusting the Projector Image Height
Elevator Feet
Elevator Buttons
The projector is equipped with elevator feet for adjusting the 
image height.
 To raise the image:
1.  Press the elevator buttons 
.
2.  Raise the image to the desired height angle 
, then release 
the button to lock the elevator feet into position.
3.  Use screw in feet 
 to fine-tune the display angle. 
 To lower the image:
1.  Press the elevator buttons.
2.  Lower the...

English
7
Installation

61.5(156.3cm)
102.5(260.4cm)
143.5(364.6cm)
184.5(468.8cm)
250.2(635.4cm)
24.6(62.5cm)
73.8(187.5cm)
123.0(312.5cm)
172.2(437.5cm)
221.5(562.5cm)
300.2(762.5cm)
3.3(1.0m)
40.0(12.2m)29.5(9.0m)23.0(7.0m)16.4(5.0m)9.8(3.0m)
20.5(52.1cm)
Width
HeightDiagonal
Hd

Focus Ring
Zoom Lever
Adjusting the Projector Zoom / Focus
You  may  turn  the  zoom  lever  to  zoom  in  or  out.    To  focus 
the image, rotate the  focus ring until the image is clear. The 
projector  will  focus...

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User Controls

Control Panel & Remote Control
There are two ways for you to control the functions: Remote 
Control and Control Panel.
Using the Control Panel
 Power/
Standby 
Refer to the “Power On/Off the Projector” section 
on pages 14-15.
 Source Press “Source” to select an input signal.
MenuTurns the menu On or Off.
Four Direc-
tional Select 
Keys
Use     to navigate through the menus.
 Enter Confirm your item selection.
 / 
Keystone
Adjusts image distortion caused by tilting the...