Optoma Projector Ep1691 User Manual

 
Introduction 
 11
Remote Control 
 
Important: 
1. Avoid using the projector with bright fluorescent lighting turned on. Certain high-frequency fluo-
rescent lights can disrupt remote control operation. 
 
2. Be sure nothing obstructs the path between the remote control and the projector. If the path be-
tween the remote control and the projector is obstructed, you can bounce the signal off certain 
reflective surfaces such as projector screens. 
 
3. The buttons and keys on the projector have the...

 
Introduction 
 12
5.  Right Right arrow when connected through USB to a PC 
6.  Down Down arrow when connected through USB to a PC 
7.  R (Right) R key for emulation of USB mouse right click via USB 
8.  ▲ /Page+ 
(Up arrow) Page Up key when connected through USB to a PC 
Navigates and changes settings in the OSD 
9.  ► /Re-SYNC 
(Right arrow) Navigates and changes settings in the OSD 
Re-Sync VGA source, adjustment for phase, tracking, size, position when \
OSD off 
10.  Page-/ ▼  
(Down arrow) Page...

 
Introduction 
 13
Note: 
The remote control can only interface with a computer when connected to the computer through a 
USB cable connection. The computer cable connects a computer to the projector for display pur-
poses only. 
Remote Control Operating Range 
The remote control uses infrared transmission to control the projector. It is not necessary to point the 
remote directly at the projector. Provided you are not holding the remote perpendicular to the sides or 
the rear of the projector, the...

 
Introduction 
 14
Inserting the Remote Control Batteries 
1. 
 
Remove the battery compartment 
cover by sliding the cover in the direc-
tion of the arrow. 
 
2. Insert the supplied batteries taking 
note of the polarity (+/-) as shown 
here. 
 
3. Replace the cover. 
 
 
Caution: 
1. Only use AAA batteries (Alkaline battery is preferred). 
 
2. Dispose of used batteries according to local ordinance regulations.  
 
3. Remove the batteries when not using the projector for prolonged periods. 
  

 
Setup and Operation 
 15
Setup and Operation 
Connecting Input Devices 
A PC or notebook computer as well as video devices can be connected to the projector at the same 
time. Video devices include DVD, VCD, and VHS players, as well as movie camcorders and digital 
still cameras. Check the user manual of the connecting device to confirm it has the appropriate output 
connector.  
  
 
ITEM LABEL DESCRIPTION 
A 
USB Connect the USB cable from a computer for USB mouse function and firmware 
upgrades. 
B...

 
Setup and Operation 
 16
Starting and Shutting down 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...

 
Setup and Operation 
 17
Setting an Access Password (Security Lock) 
You can use the arrow buttons to set a password and prevent unauthorized use of the projector. 
When enabled, the password must be entered after you power on the projector. (See Navigating the 
OSD on page 22 and Setting the OSD Language on page 23 for help on using OSD menus.) 
Important: 
Keep the password in a safe place. Without the password, you will not be able to use the projector. 
If you lose the password, contact your...

 
Setup and Operation 
 18
3.   
Press  ▲▼ to select  Security.  
4.  
Press  ▲▼ to select  Security Setting  
and then press  ◄► to select  En-
able/Disable .  
5.  
When the security setting is  Enabled, 
you are prompted to enter a password 
soon after the projector is powered on. 
 
Note:  If the incorrect password is en-
tered three times the projector auto 
shutdowns down after 10 seconds. 
 
The default password is:        
  . 
  

 
Setup and Operation 
 19
6.   
To change a password, enter the previ-
ous password when prompted. 
7.   
Use the following keys , , , 
, , , , ,  to define 
a new password. 
  

 
Setup and Operation 
 20
Adjusting the Projector Level 
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. 
 
1.  To raise the level of the projector, lift the projector [A] and press the height-
adjuster button [B].  
The height adjuster drops down [C].  
2.  To lower the level of the projector,...