Optoma Ep7155i Projector User Manual

English
Rear View
1. AC IN (Power)
2. USB Connector
3. Audio Input Connector
4. S-Video Input Connector
5. Video Input Connector
6. VGA/SCART Input Connector
7. HDMI Connector
8. Kensington™ Lock Port
9. Ventilation Opening
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Introduction 

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Remote Control
 
HDMI
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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. Menu
11. Zoom
12. AV mute
13. Video Source
14. VGA Source
15. Freeze
16. S-Video Source
17. HDMI
18. Brightness
19.
Number Buttons
(for password input)
20. Keystone +/- 
21. Source
22. Enter
23. Mouse Left Click
24. PC/Mouse control
Introduction 

English
Connecting the Projector
Connect to Computer / Notebook
1. Power Cord
2. USB Cable
3. Audio-in (mini jack)
4. S-Video Cable
5. Video Cable
6. VGA Cable
7. HDMI Cable
v Due to the  difference in  
applications 
for each  
country, some 
regions may 
have different 
accessories.
Installation
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Connect to Video Sources
1. Power Cord
2. Component Cable (optional)
3. RGB to Component Adapter (optional)
4. Stereo system cable (optional)
5. RCA Video Cable
6. SCART to RGB & S-Video Adapter (optional)
7. VGA Cable
8. S-Video Cable (optional)
9. HDMI Cable
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DVD Player, Set-top Box,
HDTV receiver
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v Due to the difference in 
applications for 
each country, 
some regions 
may have  
different  
accessories.
Installation 

English
Powering On / Off the Projector
Powering On the Projector
1. Connect the power cord to the projector.
2. Turn On the connected devices.
3. Ensure the Power LED is steady (flashing) and then press the Power button to turn On the projector.  
 
The projector splash screen displays and connected devices are 
detected. If the connected device is a PC, press the appropriate 
keys on the computer keyboard to switch the display output to 
the projector. (Check the user manual of the PC to...

English
Powering Off the Projector
1. Press POWER  to turn off the projector lamp, a message displays on the 
projector’s screen.
2. Press  POWER again to confirm, otherwise the message disappears 
after 15 seconds. 
3. 
The cooling fans continue to operate for about 10 seconds for cooling  cycle
.
(If you wish to turn the projector back on, you must wait until the 
projector has completed the cooling cycle and has entered standby 
mode. Once in standby mode, simply press  POWER to restart the...

English
Adjusting the Projected Image
Adjusting the Projector’s Height
Take note of the following when setting up the projector:• The projector table or stand should be level and sturdy.
• Position the projector so that it is perpendicular to the screen.•  Ensure  the  cables  are  in  a  safe  location.  You  could  trip  over  them.
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1. To raise the level of the...

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Adjusting the Zoom / Focus
1. Use the Image-zoom control (on the projector only) to  
resize the projected image 
and screen size  [B].
2. Use the Image-focus control  (on the projector only) to 
sharpen the projected image 
[A].A
B
3. Use the keystone buttons to correct image distortion. They can be found on the remote control and on the projector’s control 
panel.
Installation 

English
Control Panel
Using the Control Panel
PowerRefer to the “Power On/Off the Projector”  
section on page 15. 
Menu Press Menu to launch the on-screen display 
(OSD) menu. To exit OSD, Press 
Menu again.
▲/Keystone+ 
(Up arrow)•Adjust the image Keystone positively.
•
Navigates and changes settings in the OSD.
►/Re-Sync 
(Right arrow)•Automatically synchronizes the projector to 
the input source.
•
Navigates and changes settings in the OSD.
▼/Keystone - 
(Down arrow)•Adjust the image...

English0
Remote Control
Using the Remote Control
PowerRefer  to  the  “Power  On/Off  the 
Projector” section on page 15.
Laser Aim  the  remote  at  the  viewing  screen, 
press  and  hold  this  button  to  activate 
the laser pointer.
Four 
Directional 
Select Keys Use  ▲▼◄►  to  select  items  or  make 
adjustments to your selection.
PC / Mouse 
control The PC/Mouse control can be used to 
control mouse movement. The mouse 
function is enabled using the USB  
cable to connect your computer and...