Vivitek Projector DX977 User Manual

– 3 – 
Limited lens shift  
 
 DX977 DH976 DU978 
A 8% 15.8% 9% 
B 2.5% 3.8% 3.1% 
 
  
To shift up the projection image, twist the 
adjusters counter clockwise 
To shift down the projection image , twist the 
adjusters clockwise     

— 4 — 
Top view—On-screen Display (OSD) buttons and LEDs 
 
ITEM LABEL DESCRIPTION SEE PAGE 
1.   (Power button) Turns the projector On or Off. 12 
2.  BLANK Displays a blank screen and mutes audio 
3.  ◄ (Left cursor) /  
VolumeJ 
Navigates and changes settings in the OSa 
Quick Menu – For Volume 
19 
4.  Enter Enter or confirm highlighted OSD menu item 
5.  MENU Opens and exits OSD menus 
6.  ▲ (Up cursor) /  
KeystoneH 
Navigates and changes settings in the OSa 
Quick Menu – For Keystone 
7.  AUTO...

–
5 – Rear view 
I TEM   L ABEL   D ESCRIPTION   S EE PAGE  
1.   AC IN   Connect the  POWER  cable  
12  
2.  
(USB)   Connect the U SB  cable from a computer 
3.   VGA OUT   Connect the RGB cable to a display  
(Loop Thru only for VGA IN - 1)  
4.   LAN   Connect a LAN cable from Ethernet  
5.   VGA IN  1   Connect the RGB  cable from a computer or component device  
6.   VGA IN  2   Connect the RGB cable from a computer or component device  
7.   DP   Connect a DISPLAYPORT CABLE from a DISPLAYPORT...

— 6 — 
Note: 
 To use this feature, you must plug in the connector before turn on/off the projector. 
 Screen controllers are supplied and supported by screen manufacturers. 
 Do not use this jack for anything other than intended use. 
 
Note: 
If your video equipment has both S-VIDEO and RCA jacks (composite video) connect to the  
S-VIDEO connector. S-VIDEO provides a better quality signal. 
 
 Warning: 
As a safety precaution, disconnect all power to the projector and connecting devices before...

– 7 – 
Bottom view 
 
ITEM LABEL DESCRIPTION SEE PAGE 
1.  Tilt adjustor  Rotate adjuster lever to adjust angle position.  16 
2.  Ceiling support holes Contact your dealer for information on mounting the projector on a 
ceiling 
3.  Height adjustor Adjuster drops down when adjuster button is 
pushed. 16 
4.  Height adjustor button Push to release adjustor. 
 
Note: 
When installing, ensure that you use only UL Listed ceiling mounts. 
For ceiling installations, use approved mounting hardware and M4...

— 8 — 
Remote Control Parts  
 
 Important: 
1. Avoid using the projector with bright fluorescent lighting turned on. Certain high-frequency 
fluorescent lights can disrupt remote control operation. 
 
2. Be sure nothing obstructs the path between the remote control and the projector. If the path 
between 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 same...

– 9 – 
ITEM LABEL DESCRIPTION SEE PAGE 
1.  IR transmitter Transmits signals to projector 
2.  Status LED Lights when the remote control is used 
3.  Laser Press to operate the on-screen pointer 
4.  Up Up arrow when connected through USB to a PC  
(Not available in this series) 
5.  Right Right arrow when connected through USB to a PC 
 (Not available in this series) 
6.  Down Down arrow when connected through USB to a PC  
(Not available in this series) 
7.  Page Down Page down when connected through...

— 10 — 
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 remote will function well within a radius of about 7 meters (23 feet) and 
15 degrees above or below the projector level. If the projector does not respond to the remote control, 
move a little closer.   
Projector and Remote...

– 11 – 
Inserting the Remote Control Batteries 
1.  Remove the battery compartment 
cover by sliding the cover in the 
direction of the arrow. 
 
2.  Insert the battery with the positive 
side facing up. 
 
3.  Replace the cover. 
 
 
 Caution: 
1. Only use AAA batteries (Alkaline batteries are recommended). 
 
2. Dispose of used batteries according to local ordinance regulations.  
 
3. Remove the batteries when not using the projector for prolonged periods. 
 
      
    

— 12 — 
SETUP AND OPERATION 
Starting and Shutting down the Projector 
 
1.  Connect the power cord to the 
projector. Connect the other end to 
a wall outlet. 
The  POWER LED on the 
projector light. 
 
2.  Turn on the connected devices. 
3.  Ensure the POWER LED not a 
flashing. Then press the  POWER 
button to turn on the projector.  
 
The projector splash screen displays 
and connected devices are 
detected. 
 
See Setting an Access Password 
(Security Lock) on page 14 if 
security lock is enabled....