ViewSonic Projector LS820 User Manual

							14
Connection
When connecting a signal source to the projector, be sure to:
1. Turn all devices off before making any connections.
2.  Use the correct signal cables for each source.
3.  Ensure the cables are firmly inserted.
	 In	the	connections	shown	below,	some	cables	may	not	be	included	within	the	projector	
packaging	(please	refer	to	“Shipping contents” ).	 
You may purchase the required signal cables from an electronics store.
The following links and icons are for references only. Connection jacks at the back of the 
projectors may differ according to the projector model.
Display
AV Device
Notebook or  desktop
computer
Speakers
Microphone
(VGA)or
or
(DVI)
1.  Computer In
2.  Computer Out
3.  Mini USB
4.  Component 
5.  S-Video  6. 
Video 
7.  Audio 
8.  HDMI + USB 5V/2A Out
9.  HDMI + Micro USB
10.  MHL
   
						

							15
Connect to the computer or monitor
Connect to the computer
1. Use the VGA cable provided. Plug one end to the D-Sub output jack at the com -
puter end.
2.  Connect the other end of the VGA cable to the COMPUTER IN1 or IN2 signal 
input jack on the projector.
3.  To use the remote mouse cursor control function, plug in the larger end o\
f the 
USB cable to the USB port on the computer and the smaller end to the MIN\
I 
USB jack on the projector. See “Using the remote control cursor”  for details.
  Many notebooks have not activated their monitor jack after being connect\
ed to the monitor. The 
user can often press FN + F3 or CRT/LCD button to switch ON/OFF the exte\
rnally connected 
monitor. Find the function key labeled with the CRT/LCD or monitor icon on the \
notebook. Press 
the FN key and the labeled function key. Please refer to the instruction manual provided with the 
notebook computer for the combination keys and their functions.
Connect to the monitor
If you want the display to be shown both on the computer monitor as well\
 as the 
screen, refer to the following instructions. Connect the VGA cable to the MONITOR 
OUT signal output jack on the projector as well as the external display.
1. Connect the projector to the computer as described in the [Connect to Co\
m -
puter] section.
2.  Use a suitable VGA cable (only 1 such cable is provided) and connect one end 
of the cable to the D-Sub input jack on the video display.  
If the display is provided with a DVI input jack, then connect the DVI e\
nd of the 
VGA-DVI-A cable to the DVI input jack on the video display.
3.  Connect the other end of the cable to the COMPUTER OUT jack on the 
projector.
COMPUTER OUT output will only be generated when the cable is connected t\
o the COMPUTER 
IN jack of the projector.
This connection mode can only be used when the projector is in Standby M\
ode. Go to Signal 
Source > Standby and activate the VGA Out function in the setup menu.
   
						

							16
Connecting to Video source devices
You can connect the projector to any of the following video source device\
 with an output jack:• HDMI
•  Component video
•  S- video
•  Video (composite video)
Only 1 of the aforementioned connection methods is required to connect t\
he projector to 
the video source device. However, different connection methods would provide a different 
video quality. The connection method selected would be determined by the presence of 
matching jacks on the projector and Video source device:
Best	video	quality
HDMI is the best video connection method available. If the source device\
 comes with 
HDMI jacks, you will be able to acquire uncompressed digital video quali\
ty.
Please refer to “Connecting to HDMI devices”  for details on how to connect the projector to 
HDMI devices.
If you don’t have any usable HDMI source, the next best video signal \
would be Component 
Video (not to be confused with Composite Video). Digital TV tuners and DVD players are 
provided with Component Video output sockets. If your device includes Component Video, 
then this would be your primary choice of connection to the (composite)\
 video.
Please refer to “To connect the projector to a Component Video source device:”  for details 
on how to connect your projector to Component Video devices.
Better	video	quality
S-video method provides slightly better simulation video compared to sta\
ndard composite 
videos. If the video device is provided with both composite video and s-\
video output jacks, 
you should try to choose S-video connection first.
Please refer to “To connect the projector to a S-Video source device:”  for details on how to 
connect your projector to S-video devices.
Least video quality
Composite Video is an analog video and will result in a perfectly acceptable, but l\
ess than 
optimal result from your projector, being the least video quality of the available methods 
described here.
Please refer to “Connecting to composite video source devices”  for details on how to 
connect your projector to composite video devices.
Connecting audio
The projector includes built-in dual-channel speakers that is designed t\
o provide basic 
audio functionality accompanying data presentations for business purpose\
s. It is not 
designed for, nor intended for stereo audio reproduction use as might be expected in\
 home 
theater or home cinema applications.
   
						

							17
Connecting to HDMI devices
Use an HDMI cable to establish a connection between the projector and HD\
MI device.
1. Connect one end of the HDMI cable to the HDMI output jack on the video d\
evice.
2.  Connect the other end of the cable to the HDMI signal input jack on the \
projector.
  In the unlikely event that the projector is connected to a DVD player vi\
a the projector’s HDMI 
input	and	the	projected	picture	displays	wrong	colors,	please	change	the	color	space	to	 YUV.	
See “Changing HDMI input settings”  for details.
To connect the projector to a Component Video source 
device:
Examine your Video source device to determine if a set of unused Component Video 
output sockets is available:
• If so, you can continue with this procedure.
•  If not, you will need to reassess which method to use to connect to the \
device.
1.  Take a VGA (D-Sub) Component adapter cable and connect the end with 3 RCA 
type connectors to the Component Video output sockets of the Video source device. 
Match the color of the plugs to the color of the sockets; green to green\
, blue to blue, 
and red to red.
2.  Connect the end of the VGA (D-Sub) Component adapter cable (with the D-Sub type 
connector) to the COMPUTER IN1/IN2 jack on the projector.
  If the selected video image is not displayed after the projector is turn\
ed on and the correct 
video	source	has	been	selected,	check	that	the	Video	source	device	is	turned	on	and	operating	
correctly. You must also check that the signal cables have been connected correctly.
To connect the projector to a S-Video source device:
Examine your Video source device to determine if an unused S-Video output socket is 
available:
• If so, you can continue with this procedure.
•  If not, you will need to reassess which method to use to connect to the \
device.
1.  Take an S-Video cable and connect one end to the S-Video output socket of the 
Video source device.
2.  Connect the other end of the S-Video cable to the S-VIDEO socket on the projector.
  If the selected video image is not displayed after the projector is turn\
ed on and the correct 
video	source	has	been	selected,	check	that	the	Video	source	device	is	turned	on	and	operating	
correctly. You must also check that the signal cables have been connected correctly.
If you have already made a Component Video connection between the projector and this 
S-Video	source	device	using	Component	Video	connections,	an	S-Video	connection	will	not	be	
required as this is an unnecessary second connection of poorer picture q\
uality. See 
“Connecting to Video source devices” for details.
   
						

							18
Connecting to composite video source devices
Examine your Video source device to determine if an unused composite output jack is 
available:• If so, you can continue with this procedure.
•  If not, you will need to reassess which method to use to connect to the \
device.
1.  Take a Video cable and connect one end to the composite Video output socket of the 
Video source device.
2.  Connect the other end of the video cable to the VIDEO socket on the proj\
ector.
  If the selected video image is not displayed after the projector is turn\
ed on and the correct 
video	source	has	been	selected,	check	that	the	Video	source	device	is	turned	on	and	operating	
correctly. You must also check that the signal cables have been connected correctly.
  You need only connect to this device using a composite Video connection if Component Video 
and S-Video inputs are unavailable for use. See  “Connecting to Video source devices” for 
details.
Audio playback with the projector
During demonstration, you may use the projector (mixed dual channel) s\
peakers or 
connect separate sound systems with sound amplification functions to the  AUDIO OUT 
sockets on the projector.
If you have a separate sound system, you should connect the audio output\
 of your Video 
source device to this sound system instead of the mono audio input on th\
e projector.  
						

							19
Operation
Activate the projector
Plug the power cord into the projector and into a wall socket. Turn on the switch on the 
wall socket (if available).
Press 
 Power to switch on the projector.
If this is the first time that you've switched on the projector, please refer to on-screen 
instructions and select your OSD language.
Switch on all connected equipment.
The projector will then begin a search of the input signals. The lower right corner of the 
screen will display the current input signal being scanned. If the proje\
ctor fails to detect a 
valid signal, the screen will display a  [NO SIGNAL] message until an input signal is found.
You can press Source to select the input signal required. See  “Switching input signal” for 
details.
	 If	the	input	signal	frequency/resolution	exceeds	the	working	range	of	the	projector,	the	blank	
screen will display the [Out of Range] message. Please change to an inpu\
t signal which is 
compatible with the projector's resolution or set the input signal to a \
lower setting. For more 
details,	please	refer	to	the	[Resolution	Table].
Using the menus
This projector is provided with an On-Screen Display (OSD) menu functi\
on, allowing 
you to make changes to various settings.
The following OSD screenshot is for reference only. Actual OSD design may differ.
The following is an overview of the OSD menu.
Main menu icon
Status
Press BACK to
go back to the
previous
window or to
exit.
Select
Sub-menu  
						

							20
1. 
Press  and select Display, then 
press / to select screen color. 2. 
Press  and select Image, then press 
/ select the primary color mode.
3. Press  and select Power 
Management, then press / to 
select automatic activation of power. 4. 
Press  and select Basic, then press 
/ to start audio channel setup.
5. Press  and select Advanced, then 
press / to select 3D settings. 6. 
Press  and select Systen, then press 
/ to select the primary language.  
						

							21
Disabling the password function
For security purposes and to help prevent unauthorized use, the projecto\
r includes an 
option for setting up password security. Passwords may be set using the On-Screen 
Display (OSD) menu. Please refer to the [Menu Use] section for details\
 on OSD menu 
operations.
  It is troublesome if you keep forgetting the password after setting up p\
assword protection. We 
recommend writing down the password and placing it somewhere safe for fu\
ture reference in 
case you forget.
Setting a password
Once	a	password	has	been	set,	the	user	must	provide	the	correct	password	after	starting	the	
projector.	Otherwise,	the	projector	cannot	be	used.
1. Open the OSD Menu and enter  System setup > 
Advanced > Advanced > Security Settings menu.
2.  Press [Enter]. The  Security Settings page will be 
displayed.
3.  Select Power Lock, then press / and select ON.
4.  The picture on the right shows 4 arrow keys ( , , 
, ) which each represent 4 numbers (1, 2, 3, 4) 
respectively. According to the password you desire 
to set, press the arrow keys to enter six digits for the 
password.
5.  Enter the password and confirm that password.   
After completing password settings, the OSD menu will return to the  Security 
Settings page.
6.  Press [Exit] to leave the OSD menu.
If you forget your password
If the password function is activated, you will be 
asked to enter the six-digit password every time 
you turn on the projector. If you enter the wrong 
password, the password error message as pictured 
to the right will be displayed for 5 seconds before 
the message [INPUT PASSWORD] is shown. You 
can enter another 6-digit password. You may use 
the password recall procedure if you forgot your 
password and did not record it in this manual. See 
“Entering the password recall procedure ” for details.
If you enter an incorrect password 5 times in succession, the projector \
will 
automatically shut down in a short time.  
						

							22
Entering the password recall procedure
1. Press and hold the [Auto Sync] button on the remote control for 3 second\
s. The 
projector will display a coded number on the screen.
2.  Write down the number and turn off your projector.
3.  Seek help from the local service center to decode the number. You may be required 
to provide proof of purchase to verify that you are an authorized user o\
f the projector.
The [XXX] number in the screenshot shown above is determined by the proj\
ector model number.
Change Password
1. Open the OSD and enter System Settings > Security Settings > Change 
Password menu.
2.  Press [Enter]. The message [INPUT CURRENT PASSWORD] will be shown.
3.  Enter the old password.
• If the password entered is correct, another message  [INPUT NEW PASSWORD] 
will be shown.
•  If the password entered is incorrect, then the password error message wi\
ll 
be displayed for 5 seconds before the screen shows the  [INPUT CURRENT 
PASSWORD]. You will then need to re-enter the password. You can either press 
[Exit] to cancel the process or try other passwords.
4.  Enter a new password.
5.  Enter the password and confirm that password.
6.  You have successfully assigned a new password to the projector. Remember to enter 
the new password next time the projector is started.
7.  Press [Exit] to leave the OSD menu.
Any digit entered will be displayed as asterisks [*] on-screen. We recommend writing down the 
password and placing it somewhere safe for future reference in case you \
forget.
Disabling the password function
1.  Open the OSD menu and enter  System Settings > Security Settings > Power 
Lock Menu.
2.  Press / and select OFF .
3.  The [INPUT PASSWORD] message will be shown. Enter the current password.
• If the password is correct, the OSD menu will return to the Security Settings 
page and show  Power Lock in the [OFF]  column. You will not have to enter the 
password next time you turn on the projector.
•  If the password entered is incorrect, then the password error message wi\
ll be 
displayed for 5 seconds before the screen shows the  [INPUT PASSWORD]. You 
will then need to re-enter the password. You can either press [Exit] to cancel the 
process or try other passwords.
Though	the	password	function	is	disabled,	you	need	to	keep	the	old	password	in	hand	should	
you ever need to re-activate the password function by entering the old p\
assword.  
						

							23
Switching input signal
The projector can be connected to multiple 
devices at the same time. However, it can only 
display one full screen at a time.If you want the projector to automatically search 
for various signals, please confirm that the  Auto 
Quick Search function in the Source menu is 
switched ON.
You may also press the source selection button 
on the remote control or search for available input 
signals to manually select the desired signals.
1.  Press [Source] to display the source selection col-
umn.
2.  Keep pressing the  / until you arrive at the 
desired signal, then press [Enter].
Once detected, the selected source information 
will display on the screen for seconds. If there 
are multiple devices connected to the projector, 
repeat steps 1 to 2 to search for another signal.
For	display	resolutions	of	this	projector,	please	refer	to	“Projector	specifications”.
To	achieve	the	best	image	display	effects,	you	should	select	and	use	an	input	signal	that	
outputs at this resolution. Any other resolutions will be scaled by the projector depending upon 
the	aspect	ratio	setting,	which	may	cause	some	image	distortion	or	loss	of	picture	clarity.	See	
“Selecting the aspect ratio” for details.