Vivitek Du978 User Manual

— i — 
Copyright  
This publication, including all photographs, illustrations and software, is protected under international 
copyright laws, with all rights reserved. Neither this manual, nor any of the material contained herein, may 
be reproduced without written consent of the author. 
©  Copyright 2015 
Disclaimer 
The information in this document is subject to change without notice. The manufacturer makes no 
representations or warranties with respect to the contents hereof and specifically...

— ii — 
Important Safety Information 
 Important: 
It is strongly recommended that you read this section carefully before using the projector. These 
safety and usage instructions will ensure that you enjoy many years of safe use of the projector. 
Keep this manual for future reference. 
Symbols Used 
Warning symbols are used on the unit and in this manual to alert you of hazardous situations.  
The following styles are used in this manual to alert you to important information. 
Note: 
Provides...

–iii – 
Projector Installation Notice 
 Place the projector in a horizontal position 
The tilt angle of the projector should not exceed 15 degrees, nor should the projector be 
installed in any way other than the desktop and ceiling mount, otherwise lamp life could decrease 
dramatically, and may lead to other unpredictable damages. 
     
 Allow at least 50 cm clearance around the exhaust vent. 
   
   
 
 Ensure that the intake vents do not recycle hot air from the exhaust vent. 
 When operating...

— iv — 
Verify Installation Location 
 To supply power, the 3-blade (with earthing lead) socket should be used to ensure proper 
grounding and equalized ground potential for all of the equipment in the Projector System. 
 The power code provided with the Projector should be used. In case of any missing item, other 
qualified 3-blade (with earthing lead) power cord can be used as substitution; however, do not use 
2-blade power cord. 
 Verify if the voltage is stable, grounded properly and there is no...

–v – 
Power Safety 
 Only use the supplied power cord. 
 Do not place anything on the power cord. Place the power cord where it will not be in the way of 
foot traffic. 
 Remove the batteries from the remote control when storing or not in use for a prolonged period. 
Replacing the Lamp 
Replacing the lamp can be hazardous if done incorrectly. See Replacing the Projection Lamp on page 49 
for clear and safe instructions for this procedure. Before replacing the lamp: 
 Unplug the power cord. 
 Allow...

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Table of Contents 
GETTING STARTED .............................................................................................................................................. 1 
PACKING CHECKLIST ............................................................................................................................................. 1 
VIEWS OF PROJECTOR PARTS ................................................................................................................................ 2...

–vii – 
SPECIFICATIONS ................................................................................................................................................ 59 
SPECIFICATIONS .................................................................................................................................................. 59 
PROJECTION DISTANCE VS. PROJECTION SIZE ...................................................................................................... 60 
Projection Distance and...

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GETTING STARTED 
Packing Checklist 
Carefully unpack the projector and check that the following items are included:  
 
DLP PROJECTOR 
   
 
 
 
 
REMOTE CONTROL  
(WITH TWO AAA BATTERIES) 
LENS CAP RGB CABLE POWER CORD 
 
 
   
CARRYING CASE CD-ROM  
(THIS USER’S MANUAL) 
QUICK START GUIDE WARRANTY CARD 
 
Contact your dealer immediately if any items are missing, appear damaged, or if the unit does not work. It 
is recommend that you keep the original packing material should you ever need to...

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Views of Projector Parts  
Front-right View 
 
ITEM LABEL DESCRIPTION SEE PAGE 
1.  Height-adjuster button Push to release height adjuster 
16 
2.  Height adjuster Adjusts level of projector 
3.  Lens Projection Lens 
4.  IR receiver Receive IR signal from remote control 8 
5.  Focus ring Focuses the projected image 
17 
6.  Zoom ring Enlarges the projected image 
7.  Manual Lens shift For Image vertical shift adjustment 3 
8.  Function keys See Top view—OnJscreen Display (OSD) 
buttons and LEDsK...