ViewSonic Projector LS820 User Manual

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FUNCTIONDescription
4.	Basic	Menu
Audio SettingsSee “Adjusting the sound” for details.
Presentation Timer See “Setting the presentation timer”  for details.
Pattern The projector can display several test patterns. It helps 
you adjust the image size and focus and check that the 
projected image is free from distortion.
Blank	Timer See “Hiding the image” for details.
Message Selecting 
On displays the current information on the 
screen when the projector is detecting or searching for 
a signal.
Splash...

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FUNCTIONDescription
5. Advanced menu
Closed CaptionSelects a preferred closed captioning mode when the 
selected input signal carries closed captions.
•  Captions: An on-screen display of the dialogue, 
narration, and sound effects of TV programs and 
videos that are closed captioned (usually marked 
as “CC” in TV listings).This function is only available when a Composite video 
or S-Video input signal is selected and its system format 
is NTSC.
Caption Version
To view captions, select CC1, CC2, CC3,...

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FUNCTIONDescription
6. Information menu
Current System StatusSource
Shows the current signals source.
Color mode
Shows the selected mode in the 
Image menu.
Resolution
Shows the native resolution of the input signal.
Color System
Shows the input system format.
IP Address
Shows the IP address of your projector.
MAC Address
Shows the MAC Address of your projector.
	 MAC	 Address	stands	for	Media	 Access	Control	Address,	
which is a physical layer address used to uniquely 
identify a network node....

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Maintenance
Care of the projector
You must regularly clean the lens and/or filter.
Do not attempt to disassemble any part of the projector. Contact your dealer if you 
need to replace any parts.
Cleaning the lens
You can clean the dust-free glass lens if you notice any dirt or dust on \
its surface.
•  Use a canister of compressed air to remove dust.
•  Use a lens cleaning wipe or soft, or a moist cloth with some detergent t\
o clean away 
any dust or dirt on the dust-free glass.
Note 
Do not apply...

48
Using	the	filter
Note
•	we	recommend	cleaning	the	filters	when	using	projector	for	a	while.
•	 	
If	the	projector	is	suspended	from	the	ceiling	or	mounted	in	a	way	that	is	difficult	to	access,	please	be	
mindful	of	personal	safety	during	filter	replacement.
Cleaning	the	filters
1.  Make sure that the projector has been shut down and unplugged from the p\
ower 
source.
2.  Press the latch pin on the filter and removed the filter from the projector .
3.  Use a small vacuum cleaner or soft brush to...

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LED Indicator
Projector statusPower indicatorStatus* indicator
Stand-by Mode RedOff
Powering On Red flashing two 
second , purple  flashing three 
second then Blue 
flashing 4 second Off
Normal Operations BlueOff
Normal Shut Down Blue flashing Off
Fan Error OffRed flashing
Temperature OffRed
DMD Blue flashing twice 
per second Red flashing twice 
per second
Projector Status: 
Color Wheel Error   Power Indicator : 
Blue flashing once  per second /  Red flashing twice 
per second
LD start failed Blue...

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Troubleshooting
 Projector is not shutting down
CauseRemedy
There is no power from the power cable. Plug one end of the power cable at the 
AC inlet of the projector and the other 
end in the power outlet. If the power 
outlet has a switch, make sure that it is 
switched on.
Attempting to turn the projector on again 
during the cooling process.  Wait until the cooling down process has 
completed.
 No picture
Cause
Remedy
Video source is not turned on or is not 
connected correctly. Switch the video...

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Specifications
Projector	specifications
•	All	specifications	are	subject	to	change	without	notice.
•	 Not all projector models are available at your location.
L810 L820L830
Input Terminals
1 VGA Input (DB 15 pin) x2x2x2
2 Audio Input (mini jack) x1x1x1
3 Audio L/R (RCA x 2 Composite) x1x1x1
4 HDMI (v1.4 with audio) x1x1x1
5 HDMI 1.4/MHL 2.0 x1x1x1
6 Video (RCA) x1x1x1
7 S-video(Mini DIN 4 pin) x1x1x1
8 Component (RCAx3) x1x1x1
9 3D	sync	(IR3D) x1x1x1
Output Terminals
1 VGA output (DB 15pin) x1x1x1
2...

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Dimensions
Ceiling mount installation
Projection direction
Note: M6L12 screws are recommended for securing the projector using suspende\
d 
mounting M6 screw holes. (M6 / L12 x 4)  

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Timing chart
Analog	RGB
Signal Resolution 
(pixels) Aspect Ratio
Refresh rate (Hz)
VGA 640x480 4:360/72/75/85
SVGA 800x600 4:360/72/75/85
XGA 1024x768 4:360/70/75/85
1152x864 4:375
WXGA 1280x768 15:9 60
1280x800 16:1060/75/85
1360x768 16:9 60
Quad-VGA 1280x960 4:360/85
SXGA 1280x1024 5:460
SXGA+ 1400x1050 4:360
WXGA+ 1440x900 16:10 60
UXGA 1600x1200 4:360
WSXGA+ 1680x1050 16:10 60
HD 1280x720 16:9 60
MAC 13” 640x480 4:367
MAC 16” 832x624 4:375
MAC 19” 1024x768 4:375
MAC 21” 1152x870 4:375
HDTV (1080p)...