Vivitek Projector DU6851 User Manual

							41
HDBaseT: Transmission is conducted from the external HDBaseT to the RJ-45/
HDBaseT port on the projector� The transmission rate is switched to 9600�
Note:
•	 When	the	Standby	Mode	is	set	to	the	Eco	Mode,	the	LAN	and	RS-232	control	function	is	turned	off.	
Therefore,	the	projector	can	only	be	turned	on	using	the	remote	control	or	the	button	on	the	projector.	
Before	using	RS232	or	LAN	control,	set	the	Standby	Mode	to	Standard.
• Startup Logo
Use the ◄► function to turn on/off the Startup Logo.
• Trigger
The projector is provided with a set of trigger output� When automatic screen equipment 
is available, connect it to the screen trigger of the projector using th\
e cable� The screen 
automatically turns on when the projector is powered on� There is a 2-3 second delay 
before this function is activated�
5:4: When the 5:4 aspect ratio is selected, the trigger outputs 12V power �
4:3: When the 4:3 aspect ratio is selected, the trigger outputs 12V power�
16:10: When the 16:10 aspect ratio is selected, the trigger outputs 12V power �
16:9: When the 16:9 aspect ratio is selected, the trigger outputs 12V power�
1�88: When the 1�88 aspect ratio is selected, the trigger outputs 12V power�
2�35: When the 2�35 aspect ratio is selected, the trigger outputs 12V power�
Letterbox: When the aspect ratio having the letterbox shape is selected, the trigg\
er 
outputs 12V power�
Standard: When the native aspect ratio is selected, the trigger outputs 12V power\
 �
Unscaled: When the unscaled aspect ratio is selected, the trigger outputs 12V pow\
er �
Auto: The trigger automatically outputs 12V power�
• Auto Search
Use the ◄► function to turn on/off Auto Search.
• Dynamic Black
Use the ◄► function to turn on/off Dynamic Black.
• 3D
Set the 3D format and sync method� The projector detects the type of the connected 
input signal and provides relevant options for setting� The unavailable option is displayed 
using light green texts� Before performing the 3D setting, ensure that the input signal is 
connected� When there's no input signal, no 3D setting shall be performed�
 INPUTSERVICEALIGNMENTLAMPPICTURE
DLP Link
3D Swap
3D 24Hz Display
3 D  F or ma t
Off
Auto
Side by Side
Top /  Bottom
Standby Mode
Auto Power off
Network
Auto Power On
Startup Logo
RS232
Trigger
<           Off             >
Enter
Dynamic Black
Auto Search
Lan gu age
3D
<          Off            >
<           Off             >
Enter
Enter
<      Standard        >
<             Off             >
Enter
<           Off             >
<           Off            >
<            On             >
Execute
Execute
Execute
Execute
Frame SequentialExecute
<        Normal         >
<          96Hz          >
CONTROL
3 D Format
Enter
3D 
DU6871/DW6851/DX6831 DLP Projector - User's Manual  
						

							42
3D Format: Select this option and press the Enter button to enable 3D replay and s\
et 
3D option�
Off: Turn off the 3D Display Mode� When Auto, Side by Side, Top/Bottom or Frame 
Sequential is selected, the 3D Mode will be turned on� To turn off the 3D Mode, 
select "Off" and press the Enter button.
Auto: Enable the 3D format to automatically detect the formats of Frame Packi\
ng, 
Top/Bottom, Side by Side and Frame Packing�
This function may only be enabled for the input signal below
 -The input signal is HDMI 1�4a 3D�
 -The HDMI 1�4a 3D signal connects to the projector through the HDBaseT 
transmitter�
Side by Side: Manually switch the 3D Format to Side by Side� This option is only 
applicable to the HDMI input signal or the HDMI signal sent using the HD\
BaseT 
transmitter�
Top/Bottom: Manually switch the 3D Format to Side by Side� This option is only 
applicable to the HDMI input signal or the aforementioned signal sent th\
rough the 
HDBaseT transmitter �
Frame Sequential: Set the format to Frame Sequential�
DLP Link: Set to activate or deactivate the DLP Link sync�
3D Swap: If the 3D imaged viewed through the 3D glasses for the left and right e\
yes 
are inverse, set the 3D Swap to "Inverse". If the images are normal, keep the current 
setting as Normal�
3D 24Hz Projection: Set the 3D 24Hz image frame rate to 144fps or 96fps� This option 
is only applicable when the input signal is 24Hz�
Note:
•	 The	projector	provides	DLP 	Link	and	3D	IR	sync.	After	the	3D	Mode	is	enabled,	the	built-in	DLP 	Link	or	
external	3D	IR	transmitter	can	be	used	to	synchronize	the	signal	of	the	3D	glasses.	Or,	you	may	turn	off	
the	DLP 	Link	sync	signal	and	only	select	the	external	3D	IR	transmitter	to	synchronize	the	3D	signal.
Important	reminder:
•  The people listed below shall be aware when watching 3D images:
 
- Children under six years in age
 
- People who are allergic to light, unhealthy and have the history of card\
iovascular 
disease�
 
- People who are tired or lack of sleep
 
- People who are under the impact of drug or alcohol
•  Normally, it's safe to watch 3D images� However, some people might feel uncomfortable� 
Refer to the guidelines revised and released by the 3D League on Decembe\
r 10, 2008� 
People need to take a break for at least 5 to 15 minutes every thirty mi\
nutes or one hour �
• Language
Select the familiar OSD Menu language� English, French, Spanish, German, 
Portuguese, Simplified Chinese, Traditional, Japanese and Korean� 
DU6871/DW6851/DX6831 DLP Projector - User's Manual  
						

							43
OSD Menu - SERVICE
 
Serial Number :
Software Verison :
Signal Format
Active Source
Pixel Clock
XXXXXXX
Lamp 1 Time
H/V Refresh Rate :
Lamp 2 Time
64.977 MHZ
VGA
MPxx-0Dxx- UDxx-RDxx-SExx-PDxx-xxxx
1024x768 @60Hz
168 HRS
168 HRS
H: 49.578 KHZ V: 60 HZ
Blue Only
Power On Time
Factory
<          Off           >
168hrs
Execute
Model : DU6871
INPUTSERVICEALIGNMENTCONTROLLAMPPICTURE
The functions of the projector are related to the display of some basic \
information of the 
projector �
• Model
Projector model name�
• Serial Number
Projector serial number �
• Software Version
The version of the software installed in the projector �
• Active Source
Display the current source�
• Pixel Clock
Display the pixel clock of the current input signal�
• Signal Format
Display the format of the current input signal�
• H/V Refresh Rate
Display the H/V refresh rate of the current image�
• Lamp 1 Time
Display the using hours of Lamp 1�
• Lamp 2 Time
Display the using hours of Lamp 2�
• Power On Time
Display the operation Time�
• Blue Only
The projector only displays blue when this option is enabled� This can help the 
maintenance personnel to inspect the image� Contact professional maintenance 
personnel for the details about the way to use this function�
• Factory Reset
Use this function to restore the configuration of the menu to the factor\
y default setting� 
All of the user setting options of the projector will be deleted and res\
tored to the factory 
default settings�
Note:
•	 Restoration	to	factory	default	settings	will	not	delete	and	reset	the	lamp	hours. 
DU6871/DW6851/DX6831 DLP Projector - User's Manual  
						

							44
Replacing the Lamps
Depending on the lamp model, the lamp life is affected by the installation method and frequency 
of the lamp on/off operation� It is suggested to replace the projector lamp when the lamp is used 
for approximately 1500 hours to ensure high projection quality� In the OSD Menu, the lamp 
using time can be checked from the "OSD Menu - Service". The lamp should be replaced when 
the projected image is obviously darkened� Contact your local dealer to purchase the authorized 
new lamp suitable for your projector�
Note:
•	Purchase	the	lamp	module	produced	by	Vivitek.	Using	the	lamp	that	is	not	made	by	Vivitek	may	affect	the	
performance	of	the	projector	or	damage	the	projector.
How to replace the projector lamp
1� Turn off the projector and unplug the power cord� Wait till the projector, lamp and 
peripheral devices to cool off� Then remove the lamp module for replacement�
Note:
•	When	the	projector	is	just	turned	off,	the	temperature	of	the	lamp	inside	the	projector	is	still	very	high	(about 	
200~300°C).	 You	might	be	burnt	if	attempting	to	replace	the	lamp	when	the	projector	is	not	cooled	off.	The	
lamp	can	be	replaced	safely	when	the	lamp	is	cooled	off.
2� Remove the screw with the screwdriver 
 and take the lamp cover out �
 
 
4� Insert the new lamp following the 
direction of the original lamp �

 
3� Remove the screw with the screwdriver 
 and take the old lamp out �
 

5� Tighten 3 screws on the lamp with the 
screwdriver , install the lamp cover 
and use the screwdriver to tighten the 
2 screws on it �
 
 
Note:
•	After	inserting	the	new	lamp	and	tightening	the	3	screws,	please	make	sure	the	lamp	is	installed	properly.	
Improper	
lamp	installation	 may	cause	 to	system 	protection	 when	projector	 is	turned	 on.	In	 this 	case, 	please	
double	check	if	lamp	is	installed	properly. 
DU6871/DW6851/DX6831 DLP Projector - User's Manual  
						

							45
1� Remove the lens cover if the lens is not installed in the projector�
Pull the edge of the lens cover with one hand (①), so that the lens cover can be 
removed easily with the other hand (②)�
2
1
2� If the lens is installed in the projector, press the release button and support the lens 
with one hand� Turn the lens counterclockwise to loosen it and pull it from the holder �
3� Align the "" symbol on the lens label with the "" symbol on the top of the body (align 
to the center of the lens hole)� Make sure the lens is pushed into the holder and turn 
it clockwise to the "Lock" position. When turning the lens, the "Click" sounds twice to 
indicate that the lens is completely fixed.
Arrow up
4� Try to pull the lens out of the holder gently to check if the lens is fixed.
Note:
•	 When	removing	the	lens,	make	sure	you	press	and	hold	the	release	button	to	loosen	and	unlock	the	lens	
from	inside	of	the	projector.
•	 The	projector	supports	the	lens	memory	function.	Perform	the	memory	function	every	time	when	you	install	
the	lens.
Installing or Removing the Projection lens 
DU6871/DW6851/DX6831 DLP Projector - User's Manual  
						

							46
Replacing the filter
The dirtiness and replacement interval of the filter may vary depending on the dustiness 
of the environment. It is recommended to conduct regular check of the filter to achieve the 
best projector performance�
Note:
•	 Dirty	filter	may	reduce	the	air	flowing	into	the	projector	and	the	temperature	in	the	projector	may	rise	as	a	
result.	This	may	activate	the	protection	mechanism	or	damage	the	components.
•	 Check,	clean	and	replace	the	filter	regularly.
•	 It	is	recommended	to	replace	the	filter	every	time	when	you	replace	the	lamp.
Replace the filter on the left side 
of the projector
1� Pull the filter cover of the shield away 
from the front left side () and remove 
the filter to the front()�


2� Install a new filter () and place the 
shield on the front side to complete the 
replacement ()�




Replace the filter on the right side 
of the projector
1� Pull the filter cover of the shield away 
from the front right side (①) and 
remove the filter to the right (②)�
 
 
2� Install a new filter (③) and place the 
shield on the front side to complete the 
replacement (④)�


 
DU6871/DW6851/DX6831 DLP Projector - User's Manual  
						

							47
Changing the Color Wheel
1� The color wheel cover is located on the top cover of the projector� Loosen the screw of 
the color wheel cover with a screwdriver, and open the color wheel cover �
2� Loosen the 4 screws on the color wheel and remove the color wheel as sho\
wn in the 
figure below.

3� Put in the color wheel to be installed and tighten the 4 screws on the c\
olor wheel�

4� Place the lamp cover and use the screwdriver to tighten the screw on the\
 color wheel cover � 
DU6871/DW6851/DX6831 DLP Projector - User's Manual  
						

							48
LED indicator status
Power LED indicator
LED displayProjector statusRecommended actions
OffAC power offUse the AC power to turn on the projector
FlashingGreenReady to turn on the 
projectorWait for the projector to display
OrangeProjector coolingWait till the cooling is complete (~120 seconds)
Light upRedStandby ModeTo turn on the projector, press the ON button on the 
remote control or the Power button on the control panel�
GreenProjector on
Status LED indicator
LED displayProjector statusRecommended actions
OffNormal
FlashingRed (1 times)Shield breakdown
Make sure if the color wheel cover is properly 
mounted� If the failure can't be repaired, contact the 
local VIVITEK service center�
Red (4 times)Fan breakdownContact the local VIVITEK service center �
Light upRedSystem errorContact the local VIVITEK service center�
Lamp 1/Lamp 2 LED indicator
LED displayProjector statusRecommended actions
OffLamp off
FlashingGreenReady to light up
Red (6 times)Lamp can't light upContact the local VIVITEK service center�
Light up
RedLamp service life endsContact the local VIVITEK service center�
GreenProjector lamp operates 
normally�
Temperature LED indicator
LED displayProjector 
statusRecommended actions
OffNormal
FlashingRedAbnormal 
temperature
Make sure the filter is not dirty, the intake or vent is not obstructed 
and the fan setting is correct� If the failure can't be repaired, contact 
the local VIVITEK service center �
Shutter LED indicator
LED displayProjector statusRecommended actions
OffShutter on
FlashingGreenShutter off 
DU6871/DW6851/DX6831 DLP Projector - User's Manual  
						

							49
DU6871/DW6851/DX6831 specifications
ModelDU6871DW6851DX6831
Display typeDLP
Typical brightness7300 ANS  lumens7000 ANS  lumens8000 ANS  lumens
Native resolutionWUXGA (1920x1200)WXGA (1280x800)XGA (1024x768)
Maximum resolutionWUXGA (1920x1200) @ 60Hz
Contrast3000:1
Lamp life and type2000/2500 hours (Standard/Eco mode), 400Wx2
Throw Ratio*1�73-2�27:11�81-2�38:11�79-2�35:1
Image Size*40~500"40~500"40~500"
Projection Distance*1�83-14�9m
(6-49ft)
1�93-15�64m
(6�3-51�31ft)
1�79-14�54m
(5�87-47�07ft)
Projection Lens*F=1�64-1�86
f=26-34mm
Zoom Ratio*1�3X
Aspect Ratio16:10 Normal
4:3 compatible with 
16:9
16:10 Normal
4:3 compatible with 
16:9
4:3 Normal
16:10 compatible with 
16:9
Lens Shift*0%~+50% (V); +/-10% (H)
KeystoneV: +/-30°
SyncV: 48-120Hz
H: 15-108kHz
Edge blendingYes (built-in)
Video compatibilitySDTV (480i/576i), EDTV (480p/576p), HDTV (720p, 1080i/p)
I/O PortHDMI v1�4, DVI-D, DisplayPort, 3D Sync Out, HDBaseT (share 
with LAN control), RGB In, RGB Out, Component (YPbPr)/RGBHV, 
RS-232C, Screen Trigger, Wire (wired remote control), USB (repair 
port)
Projection MethodDesktop projection, ceiling (front or rear)
Size (W x D x W)504x520x193mm (19.8"x20.5"x7.6") (excluding the protruding part)
Weight  
(excluding the lens)
20kg (44�1lbs)
Noise level35dB/40dB (Dual-lamp Eco/Standard Mode)
POWERAC100-240V, 50/60Hz
Power ConsumptionStandby: 0�5W (No RJ-45, RS-232 activation)
AccessoriesAC power cord, VGA cord, remote control, lens cap,  
user manual CD
* Standard Lens 
DU6871/DW6851/DX6831 DLP Projector - User's Manual  
						

							50
Outline Dimensions
504mm
520mm 
R/PrG/YB/Pb
HDBaseT / LAN
3D Sync Out
RGB IN
RS-232 USB
T RIGGER H
V
Display PortDVI-D
WIRE
RGB OUT
HDMI
MENU
EXIT
POWER
INPUTA
UT O 
SY NC ASPEC T
FOCUS
LENS
SHIFT Z
OOM
SHUTTER
CENTER
LENS
193mm 
DU6871/DW6851/DX6831 DLP Projector - User's Manual