Optoma Ep728i Projector User Manual

English

Introduction

Remote Control
1. Button LED
2. Power On/Off
3.  Laser Button
4.  Page Up
5.  Mouse Right Click
6.  Four Directional 
 
  Select Keys
7.  Re-Sync
8.  Page Down 
9.   Volume +/-
10.  Zoom
11.  AV mute
12.  Video Source
13.  VGA Source
14.  Freeze
15.  S-Video Source
16.  DVI Source
17.  Brightness
18.  Menu
19.  Keystone +/-
20.  Source
21.  Enter
22.  Mouse Left Click
23.  PC/Mouse control 
24.  Number Buttons 
  (for password input)
1
10
11
1314
3
2
23
15
16
17
19
20
8...

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Installation

Connecting the Projector
	Due to the  difference in applications for each country, some regions may have different accessories.
Connect to Computer/Notebook
1...............................................................................................................Power Cord2................................................................................................................VGA Cable3.........................................................DVI-I to VGA Cable...

3English

Installation

Connect to Video Sources
S-Video Output
DVD Player, Set-top Box, HDTV receiver
1...............................................................................................................Power Cord2......................................SCART RGB/S-Video Adaptor (Optional accessories)3...................................................................S-Video Cable (Optional accessories)4............15-Pin to 3 RCA Component/HDTV Adaptor (Optional...

4English

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 be Amber.
3.  Turn on the lamp by pressing “Power” button either on the 
top of the projector or on the remote. The Power LED will 
flash green.
  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 after the startup screen...

5English

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 54-55. 
  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 dealer or...

6English

Installation

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

7English

 Installation

Focus Ring
Zoom Ring
Adjusting the Projector’s Zoom / Focus
Adjusting Projection Image Size
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 at distances from 3.9 to 39.4 feet (1.2 to 12.0 meters). 
68.8(174.8cm)
114.7(291.4cm)
160.6(407.9cm)
206.5(524.5cm)
275.3(699.3cm)
30.3(76.9cm)
75.7(192.3cm)
126.2(320.5cm)
176.7(448.7cm)
227.1(576.9cm)
302.9(769.2cm)
3.9(1.2m)...

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User Controls

Control Panel
Control Panel & Remote Control
There	are	two	ways	for	you	to	control	the	functions:		
Control	Panel	and	Remote	Control.
Using the Control Panel
PowerRefer to the “Power On/Off the Projector” section 
on pages 14-15.
MenuPress “Menu” to launch the on-screen display 
(OSD) menu. To exit OSD, Press “Menu” again.
EnterConfirm your item selection.
AV MuteMomentarily turns off/on the audio and video.
SourcePress “Source” to select an input signal....

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User Controls

Using the Remote Control
Power  
Refer to the “Power On/Off the Projector” 
section on pages 14-15.
Laser   
Aim the remote at the viewing screen, press 
and hold this button to activate the laser 
pointer.
PC/Mouse 
control
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 ButtonMouse left click.
R ButtonMouse right click.
Page +Use this button to page up.
Page...

20English

User Controls

Using the Remote Control
Menu
Press “Menu” to launch the on-screen 
display (OSD) menu. To exit OSD, Press 
“Menu” again.
Zoom Press “+/-” button to zoom in of an image.
DVIPress “DVI” to choose DVI source.
VGAPress “VGA” to choose source from VGA-
IN connector.
AV MuteMomentarily turns off/on the audio and 
video.
S-VideoPress “S-Video” to choose S-Video source.
FreezePress “Freeze” to pause the screen image.
Video
Press “Video” to choose Composite video 
source. This function...