The lightning ash with arrow head within an equilateral triangle is
intended to alert the user to the presence of uninsulated “dangerous
voltage” within the product’s enclosure that may be of sufcient
magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert
the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the appliance.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. DANGEROUS HIGH
VOLTAGES ARE PRESENT INSIDE THE ENCLOSURE. DO NOT OPEN THE
CABINET. REFER SERVICING TO QUALIFIED PERSONNEL ONLY.
Class B emissions limits
This Class B digital apparatus meets all requirements of the Canadian
Interference-Causing Equipment Regulations.
Important Safety Instruction
1. Do not block any ventilation openings. To ensure reliable operation of
the projector and to protect from over heating, it is recommended to
install the projector in a location that does not block ventilation. As an
example, do not place the projector on a crowded coffee table, sofa,
bed, etc. Do not put the projector in an enclosure such as a book case
or a cabinet that restricts air ow.
2. Do not use the projector near water or moisture. To reduce the risk
of re and/or electric shock, do not expose the projector to rain or
moisture.
3. Do not install near heat sources such as radiators, heaters, stoves or
any other apparatus such as ampliers that emits heat.
4. Clean only with dry cloth.
5. Only use attachments/accessories specied by the manufacturer.
6. Do not use the unit if it has been physically damaged or abused.
Physical damage/abuse would be (but not limited to):
Unit has been dropped.
Power supply cord or plug has been damaged.Liquid has been spilled on to the projector.
Projector has been exposed to rain or moisture.
Something has fallen in the projector or something is loose inside.
Do not attempt to service the unit yourself. Opening or removing covers
may expose you to dangerous voltages or other hazards. Please call
Optoma before you send the unit for repair.
7. Do not let objects or liquids enter the projector. They may touch
dangerous voltage points and short out parts that could result in re or
electric shock.
8. See projector enclosure for safety related markings.
9. The unit should only be repaired by appropriate service personnel.
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English
Usage Notice
Precautions
Please follow all warnings, precautions and
maintenance as recommended in this user’s
guide.
▀■ Warning- Do not look into the projector’s lens when the lamp is
on. The bright light may hurt and damage your eyes.
▀■ Warning- To reduce the risk of re or electric shock, do not
expose this projector to rain or moisture.
▀■ Warning- Please do not open or disassemble the projector as
this may cause electric shock.
▀■ Warning- When replacing the lamp, please allow the unit to
cool down. Follow instructions as described on pages
60-61.
▀■ Warning- This projector will detect the life of the lamp itself.
Please be sure to change the lamp when it shows
warning messages.
▀■ Warning- Reset the “Lamp Reset” function from the on-screen
display “OPTIONS | Lamp Settings” menu after
replacing the lamp module (refer to page 52).
When the lamp
reaches the end
of its life, the pro-
jector will not turn
back on until the
lamp module has
been replaced.
To replace the
lamp, follow the
procedures listed
under “Replacing
the Lamp” section
on pages 60-61.
▀■ Warning- When switching the projector off, please ensure
the cooling cycle has been completed before
disconnecting power. Allow 90 seconds for the
projector to cool down.
▀■ Warning- Not all projectors come with a lens cap. For your
safety, if the projector is equipped with a lens cap
please ensure to remove it before you turn on the
projector.
▀■ Warning- When the lamp is approaching the end of its lifetime,
the message “Lamp Warning: Lamp life exceeded.”
will show on the screen. Please contact your local
reseller or service center to change the lamp as soon
as possible.
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English
Usage Notice
Do:
Turn off and unplug the power plug from the AC outlet before
cleaning the product.
Use a soft dry cloth with mild detergent to clean the display
housing.
Disconnect the power plug from AC outlet if the product is
not being used for a long period of time.
Avoid using in areas susceptible to excessive dust and
dirt.
Do not:
Block the slots and openings on the unit provided for
ventilation.
Use abrasive cleaners, waxes or solvents to clean the unit.
Use under the following conditions:
Use in extremely hot, cold or humid environments.
Ensure that the ambient room temperature is within
5 - 40°C.
Relative Humidity is 5 - 40°C, 80% (Max.),
non-condensing.
Use near any appliance generating a strong magnetic eld.
Use in direct sunlight.
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English
Usage Notice
Eye Safety Warnings
▀■ Avoid staring/facing directly into the projector beam at all
times. Keep your back to the beam as much as possible.
▀■ When projector is used in a classroom, adequately supervise
students when they are asked to point out something on the
screen.
▀■ In order to minimize the lamp power, use room blinds to
The Product Features shall be congured by the manu-
▀■
facturer as per practical conditions.
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English
Introduction
L
R
Freeze
Power
Switch
Enter
Page
-
Keystone
Volume
Menu
1 2 3
4 5 6
7 809
HDMI
User1
Source
Resync
User2 User3
VGA
Video
3D
Page+
Laser
Package Overview
Unpack and inspect the box contents to ensure
all parts listed below are in the box. If something
is missing, please contact your nearest customer
service center.
Due to different
applications in
each Country,
some regions
may have
different
accessories.
(*) Selected ac-
cessories may not
be included in the
package - varies by
regional offerings
and model specs.
ProjectorVGA Cable
Battery
Power Cord
IR Remote Control
Carrying case
(*)
(*)
Documentation :
User’s Manual
Warranty Card
Quick Start Card
WEEE Card
(for EMEA only)
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English
Introduction
1
7
10
5
21
3
9
8
461
6
9
4
1
2
8
7
3
5
Product Overview
Main Unit
The interface
is subject to
model’s specications.
Do not block
projector in/out
air vents.
Standard
Focus Ring1.
Zoom Lever2.
IR Receiver3.
Control Panel4.
Input / Output Connec-5.
tions
Kensington6.
Ventilation (inlet)7.
Speaker8.
Tilt-Adjustment Feet9.
Ventilation (outlet)10.
TM
Lock Port
Short Throw
Focus Ring1.
IR Receiver2.
Control Panel3.
Input / Output Connec-4.
tions
Kensington5.
Ventilation (inlet)6.
VGA2-IN/YPbPr Connector 4.
(PC Analog Signal/Component Video Input/HDTV/YPbPr)
VGA1-IN/YPbPr/5. Connector
(PC Analog Signal/Component Video Input/HDTV/YPbPr/
Wireless function via VGA Dongle)
HDMI Connector6.
Security Lock Slot7.
Audio2 Input 8. Connector (3.5mm mini jack)
Audio Output Connector (3.5mm mini jack)9.
Audio1 Input Connector (3.5mm mini jack)10.
RS-232 Connector (9-pin)11.
USB service and remote mouse12.
Power 13.
RJ45 14.
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English
The interface is
L
R
Freeze
Power
Switch
Enter
Page
-
Keystone
Volume
Menu
123
456
7809
HDMI
User1
Source
Resync
User2 User3
VGA
Video
3D
Page+
Laser
1
2
3
4
5
6
7
8
9
10
11
12
13
14
26
25
24
23
22
21
20
19
18
17
15
16
subject to model’s
specications.
Introduction
Remote Control
Power On/Off1.
Freeze2.
Display Blank & Audio 3.
Mute
USB Mouse Left Click4.
Enter5.
Left Selection Key6.
Laser Pointer Trigger7.
Page Down8.
Keystone +/-9.
Aspect10.
HDMI11.
User Dene Keys12.
Source13.
Brightness Mode14.
Mouse function on/off 15.
switch
Mute16.
USB mouse Right click17.
Up Selection Key18.
Right Selection Key19.
Down Selection Key20.
Eco (<0.5W), the
VGA output and
Audio pass-through
will be deactivated
when the projector
is in standby.
Powering the Projector On / Off
Powering On the Projector
1. Securely connect the power cord and signal cable. When
connected, the POWER LED will turn red.
2. Turn on the lamp by pressing “ ” button either on the top of
the projector or on the remote. The POWER LED will now
turn blue.
The startup screen will display in approximately 10 seconds.
The rst time you use the projector, you will be asked to
select the preferred language and power saving mode.
3. Turn on and connect the source that you want to display
on the screen (computer, notebook, video player, etc). The
projector will detect the source automatically. If not, push
menu button and go to “OPTIONS”.
Make sure that the “Source Lock” has been set to “Off”.
If you connect multiple sources at the same time, press the
“SOURCE” button on the control panel or direct source keys
on the remote control to switch between inputs.
Turn on the
projector rst and
then select the
signal sources.
Power
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English
Installation
Powering off the projector
1. Press the “ ” button on the remote control or on the
control panel to turn off the projector.
The following message will be displayed on the screen.
Press the “ ” button again to conrm otherwise the
message will disappear after 15 seconds. The projector will
shut down when the “ ” button is pressed for the second
time.
2. The fans will continue to operate for 10 seconds and the
POWER LED will ash blue. During this period, the projec-
tor cannot be turned back on and the projector should not
be unplugged.
Once the cooling cycle is complete, the POWER LED will
turn to solid red (standby mode). At this point, the projector
can be turned back on by pushing the “ ” button.
3. Disconnect the power cord from the electrical outlet and the
projector.
4. Do not turn on the projector immediately following a power
off procedure.
Contact the
nearest service
center if the
projector displays
these symptoms.
See pages
71-72 for more
information.
Warning Indicator
When the warning indicators (see below) come on, the
projector will automatically shutdown:
“LAMP” LED indicator is lit red and if “On/Standby” indica-
tor ashes red.
“TEMP” LED indicator is lit red and if “On/Standby”
indicator ashes red. This indicates the projector has
overheated. Under normal conditions, the projector can be
switched back on.
“TEMP” LED indicator ashes red and if “On/Standby”
indicator ashes red.
Unplug the power cord from the projector, wait for 30 seconds
and try again. If the warning indicator light up again, please
contact your nearest service center for assistance.
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Installation
Adjusting the Projected Image
Adjusting the Projector’s Height
The projector is equipped with elevator feet for adjusting
the image height.
1. Locate the adjustable foot you wish to modify on the
underside of the projector.
2. Rotate the adjustable ring clockwise to raise the projector
or counter clockwise to lower it. Repeat with the remaining
feet as needed.
Tilt-Adjustment Feet
Tilt-Adjustment Ring
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Installation
Adjusting the Projector’s Zoom / Focus
You may turn the zoom ring to zoom in or out. To focus the image, rotate the focus ring until the image is clear.
XGA series: The projector will focus at distances from 3.28
to 39.4 feet (1.0 to 12.0 meters).
WXGA series: The projector will focus at distances from 3.28
to 32.8 feet (1.0 to 10.0 meters).
XGA with 0.6 TR: The projector will focus at distances from
2.5 to 12 feet (0.76 to 3.66 meters).
WXGA with 0.5 TR: The projector will focus at distances
from 1.64 to 11 feet (0.5 to 3.35 meters).
Zoom Lever
Focus Ring
Page 17
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Installation
Width
Height
Diagonal
Top View
Side View
Projection Distance (D)
Projection Distance (D)
Screen
Screen
Screen (W)
Screen (H)
Offset (Hd)
Adjusting Projection Image Size
XGA series: Projection Image Size from 27.5”~ 302.8” (0.70
to 7.69 meters).
WXGA series: Projection Image Size from 27.3” to 299.5”
(0.69 to 7.60 meters).
XGA with 0.6 TR: Projection Image Size from 60.7”~291.7”,
up to 300” (1.55 ~ 7.42 meters).
WXGA with 0.5 TR: Projection Image Size from 44.3”~297”
Refer to the “Power On/Off the Projector” section on
pages 13-14.
Automatically synchronize the projector to the input
source.
Press “Menu” to launch the on-screen display
(OSD) menu. To exit OSD, Press “Menu” again.
Help Menu (only available when OSD menu is not
shown).
to select items or make adjust-
Use
ments to your selection.
Use to adjust image distortion caused by
tilting the projector. (±40 degrees)
Indicate the projector’s lamp status.
Indicate the projector’s temperature status.
Indicate the projector’s status.
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User Controls
L
R
Freeze
Power
Switch
Enter
Page
-
Keystone
Volume
Menu
123
456
7809
HDMI
User1
Source
Resync
User2 User3
VGA
Video
3D
Page+
Laser
Remote Control
Using the Remote Control
The interface
is subject to
model’s specications.
Power
Switch
Display blank
& Audio mute
Freeze
Mute
L/R
Four Directional Selec-
tion Keys
Enter
Laser
Page +/-
Keystone +/-
Volume +/-
Aspect
Refer to the “Power On/Off the Projector”
section on pages 13-14.
USB mouse switch.
Momentarily turns off/on the audio and
video.
Temporarily freeze the video.
Momentarily turns off/on the audio.
Emulate USB mouse Left/Right click.
Use to select items or make adjustments
to your selection. Up/Down/Left/Right key
for emulation of USB mouse via USB when
“Switch” button is clicked.
Conrm your item selection.USB emulation
when “Switch” button is clicked.
Laser pointer trigger, press to emit laser
(For Laser version).
Page Up/Down for emulation of USB keyboard via USB when OSD off.
Adjust image distortion caused by tilting the
projector.
Adjust to increase / decrease the volume.
Use this function to choose your desired
aspect ratio.
Press “Menu” to launch the on-screen
Menu
display (OSD) menu. To exit OSD, press
“Menu” again.
3D
Press the “3D” to turn the 3D OSD menu
on/off.
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English
User Controls
Using the Remote Control
HDMI
VGA
Video
User dened keys
(1/2/3)
Source
Brightness
Mode
Re-Sync
Press “HDMI” to choose HDMI source.
Press “VGA” to choose VGA sources.
Press “Video” to choose Composite Video
and S-video source.
Keys can be dened in projector OSD.
Press “Source” to select an input signal.
Change the brightness mode: Bright->Eco>Dynamic->Eco+. (refer to page 52)
Automatically synchronizes the projector to
the input source.
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English
User Controls
key
position
K271Power
K252Switch
K283Display blank&Audio mute
K314Freeze
K265Mute
K296L
K307R
K338UP
K219LEFT
K2310Enter
K1911Right
K3212Down
K2213Page-
K2014Laser
K2415Page+
K1016keystone-
K917keystone+
K818Volume-
K719Volume+
K1620Format/1
K1421Menu/2
K13223D/3
K423HDMI/4
K524VGA/5
K625Video/6
K326User1/7
K227User2/8
K128User3/9
K1529Soure
K1730Brightness/0
K1831Resync
key
legend
NEC_CODE
Key
MTX
repeat
format
custom codeData
Byte 1 Byte 2 Byte 3 Byte 4
F132CD817E
F132CD3EC1
F132CD8A75
F132CD8B74
F132CD926D
F132CDCB34
F132CDCC33
F232CDC639
F232CDC837
F132CDC5/CA 3A/35
F232CDC936
F232CDC738
F232CDC2
----------
F232CDC13E
F232CD847B
F232CD857A
F232CD8F70
F232CD8C73
F132CD9867
F132CD8877
F132CD936C
F132CD8679
F132CDD02F
F132CDD12E
F132CDD22D
F132CDD32C
F132CD
F132CDC33C
F132CD9669
F132CDC43B
D42B
3D
Page 24
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English
User Controls
Installing Batteries
Replace only with the same or equivalent type recommended by the manufacturer.
CAUTION
Improper use of batteries can result in chemical leakage or
explosion. Be sure to follow the instructions below.
•
Do not mix batteries of different types. Different types of
batteries have different characteristics.
Do not mix old and new batteries. Mixing old and new •
batteries can shorten the life of new batteries or cause
chemical leakage in old batteries.
Remove batteries as soon as they are worn out. Chemi-•
cals that leak from batteries that come in contact with skin
can cause a rash. If you nd any chemical leakage, wipe
thoroughly with a cloth.
The batteries supplied with this product may have a •
shorter life expectancy due to storage conditions.
Remove batteries from the remote if the remote is not to •
be used for extended period of time.
Obey local laws during disposal of the battery.•
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25
English
User Controls
Using the HELP button
The HELP function ensures easy setup and operation.
Press the “?” button on the control panel to open the Help
Menu.
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26
English
User Controls
Help menu button functions only when no input source
is detected.
Please refer to the
“Troubleshooting”
section on pages
54-59for more
details.
If input source is detected and help button is pressed, the
following pages will appear to help diagnose any problems.
Page 27
27
English
User Controls
Page 28
28
English
User Controls
On-screen Display Menus
The Projector has multilingual On-screen Display menus that
allow you to make image adjustments and change a variety of
settings.
How to operate
1. To open the OSD menu, press “Menu” on the Remote Control or
Projector Keypad.
2 When OSD is displayed, use
main menu. While making a selection on a particular page, press
or “Enter” key to enter sub menu.
3.Use
using key.
4. Select the next item to be adjusted in the sub menu and adjust as
described above.
5. Press “Enter” to conrm, and the screen will return to the main
menu.
6. To exit, press “Menu” again. The OSD menu will close and the
projector will automatically save the new settings.
keys to select the desired item and adjust the settings
keys to select any item in the
Main Menu
Sub Menu
Settings
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English
User Controls
Main MenuSub Menu
Display ModePresentation / Bright / Movie / sRGB /
Blackboard / User / 3D
Brightness-50~50
Contrast-50~50
Sharpness1~15
#1
Color-50~50
#1
Tint-50~50
AdvancedGammaFilm / Video / Graphics / Standard
BrilliantColor™1~10
Color Temp.Warm / Medium / Cold
Color settingsRed / Green / Blue /
Cyan / Magenta /
Yellow
Hue / Saturation / Gain [-50~50]
WhiteRed / Green / Blue
Reset
Exit
Color SpaceAUTO / RGB / YUV (Input source is not
HDMI
)
AUTO / RGB (0-255) / RGB (16-235) /
YUV (Input source is HDMI)
#2
SignalAutomaticOn / Off
Phase (VGA)
Frequency (VGA)
H. Position (VGA)
V. Position (VGA)
Exit
Exit
Reset
Format
#3
4:3 / 16:9 / Native / AUTO
#4
4:3 / 16:9 or 16:10 / LBX / Native / AUTO
Edge Mask0~10
Zoom-5~25 (80%~200%)
Image Shift H-100~100
V-100~100
V Keystone -40~40
3D3D ModeOff / DLP-Link
3D->2D3D / L / R
#5
3D FormatAUTO / SBS / Top and Bottom / Frame
Sequential
#5
3D Sync. InvertOn / Off
LanguageEnglish / Deutsch / Français / Italiano /
Español / Português / Svenska /
Nederlands / Norsk/Dansk / Polski /
Suomi / Ɋɭɫɫɤɢɣ / İȜȜȘȞȚțȐ / Magyar /
ýeština / γέΎϓ / ϲΑέϋ /腎
誎襦肫 /
䬨
య襦肫 / 螔膩蓳 /䞲 ῃ㠊 / ࡷࡎ ࡙ /
Türkçe / ViӋt / Bahasa Indonesia / Româ
nå
Projection
Menu Location
#4
Screen Type16:10 / 16:9 (WXGA)
#6
SecuritySecurityOn / Off
Security TimerMonth / Day / Hour
Change Password
Exit
Settings
IMAGE
DISPLAY
SETUP
Menu Tree
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English
User Controls
Main MenuSub Menu
Settings
Projector ID0~99
Audio SettingsInternal SpeakerOn / Off
MuteOn / Off
Volume0~10
Audio InputDefault / AUDIO1 / AUDIO2
Audio Input 2 functionMic / Audio Input2
LAN Settings
Network StatusConnect/Disconnect(Read-Only)
DHCPOn/Off [Default Off]
IP AddressDefault [192.168.0.100]
Subnet maskDefault [255.255.255.0]
GatewayDefault [192.168.0.254]
DNSDefault [192.168.0.51]
ApplyYes / No
MAC AddressRead-Only
Exit
AdvancedLogoDefault / Neutral
Closed CaptioningOff / CC1 / CC2
Exit
Input SourceVGA / Video / Video / S-Video / HDMI
Source LockOn / Off
High AltitudeOn / Off
Information HideOn / Off
Keypad LockOn / Off
Test PatternNone / Grid / White Pattern
#6
IR FunctionOn / Off / Top / Front
Background ColorBlack / Red / Blue / Green / White
Remote SettingsUser 1
Please note that the on-screen display (OSD) menus vary according to the
signal type selected and the projector model you are using.
(
#1) “Color” and “Tint” are only supported in Video mode.
(
#2) “Signal” is only supported in Analog VGA (RGB) signal.
(
#3) For XGA model only.
(
#4) For WXGA model only. 16:9 or 16:10 depend on “Screen Type” setting.
(
#5) “3D Sync Invert” is only available when 3D is enabled and this mode
3D is for DLP link glass only.
(
#6) The function depends on model’s specications.
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English
User Controls
IMAGE
Display Mode
There are many factory presets optimized for various types of
images.
Presentation: Good color and brightness from PC input.
Bright: Maximum brightness from PC input.
Movie: For home theater.
sRGB: Standardised accurate color.
Blackboard: This mode should be selected to achieve optimum
color settings when projecting onto a blackboard (green).
User: User’s settings.
3D: Recommend setting for 3D mode enabled. Any further ad-
justments by the user in 3D will be saved in this mode for further
use.
Brightness
Adjust the brightness of the image.
Press the to darken image.
Press the to lighten the image.
Contrast
The contrast controls the degree of difference between the lightest
and darkest parts of the picture.
Press the to decrease the contrast.
Press the to increase the contrast.
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User Controls
Sharpness
Adjust the sharpness of the image.
Press the to decrease the sharpness.
Press the to increase the sharpness.
Color
“Color” and “Tint”
functions are only
supported under
Video mode.
Adjust a video image from black and white to fully saturated color.
Press the to decrease the amount of saturation in the image.
Press the to increase the amount of saturation in the image.
Tint
Adjust the color balance of red and green.
Press the to increase the amount of green in the image.
Press the to increase the amount of red in the image.
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User Controls
IMAGE | Advanced
Gamma
This allows you to choose a degamma table that has been
ne-tuned to bring out the best image quality for the input.
Film: for home theater.
Video: for video or TV source.
Graphics: for image source.
Standard: for PC or computer source.
BrilliantColor™
This adjustable item utilizes a new color-processing algorithm and
system level enhancements to enable higher brightness while
providing true, more vibrant colors in picture. The range is from
“0” to “10”. If you prefer a stronger enhanced image, adjust toward
the maximum setting. For a smoother, more natural image, adjust
toward the minimum setting.
Color Temp
If set to cold temperature, the image looks more blue. (cold image)
If set to warm temperature, the image looks more red.
(warm image)
Color Settings
Press into the next menu as below and then use or to
select item.
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English
User Controls
Red/Green/Blue/Cyan/Magenta/Yellow: Use or to select
Hue, Saturation and Gain Colors.
White: Use or to select Red, Green and Blue Colors.
(*)
Only available
while HDMI input
source is connected.
Reset: Choose “Yes” to return the factory default settings for
color adjustments.
Color Space
Select an appropriate color matrix type from AUTO, RGB, RGB
(0-255)
(*)
, RGB (16-235)
(*)
or YUV.
Reset
Choose “Yes” to return the display parameters on all menus to the
factory default settings.
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English
User Controls
IMAGE | Advanced
| Signal (RGB)
“Signal” is only
supported in Analog
VGA (RGB) signal.
Automatic
Automatically selects the signal. If you use this function, the
Phase, frequency items are grayed out, and if Signal is not automatic, the phase, frequency items will appear for user to manually
tune and saved in settings after that for next time projector turns
off and on again.
Phase
Synchronize the signal timing of the display with the graphic card.
If the image appears to be unstable or ickers, use this function to
correct it.
Frequency
Change the display data frequency to match the frequency of
your computer’s graphic card. Use this function only if the image
appears to icker vertically.
H. Position
Press the to move the image left.
Press the to move the image right.
V. Position
Press the to move the image down.
Press the to move the image up.
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User Controls
DISPLAY
Format
Use this function to choose your desired aspect ratio.
XGA
4:3: This format is for 4×3 input sources.
16:9: This format is for 16×9 input sources, like HDTV and DVD
enhanced for Wide screen TV.
Native: This format displays the original image without any
scaling.
AUTO: Automatically selects the appropriate display format.
Auto
4:3
Wide
Laptop
SDTV
HDTV
Input resolution
HVHVHV
6404808006001024768
8006008006001024768
10247688006001024768
128010248006001024768
140010508006001024768
160012008006001024768
12807208004501024576
12807688004801024614
12808008005001024640
7205768004501024576
7204808004501024576
12807208004501024576
192010808004501024576
Auto/Scale
(SVGA)
Auto/Scale
(XGA)
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User Controls
16:9 or 16:10
depend on “Screen
Type” setting.
Aspect ratio
(source detected)
4:3800 x 600 center1024 x 768 center
16:9800 x 450 center1024 x 576 center
Native
Resize image (SVGA)Resize image (XGA)
No resize image, 1:1 mapping and
centered. This format shows the
original image without scaling.
WXGA
4:3: This format is for 4×3 input sources.
16:9: This format is for 16×9 input sources, like HDTV and DVD
enhanced for Wide screen TV.
16:10: This format is for 16×10 input sources, like widescreen
laptops.
LBX: This format is for non-16x9, letterbox source and for users
who use external anamorphic lens to display 2.35:1 aspect ratio
using full resolution.
Native: This format displays the original image without any
scaling.
AUTO: Automatically selects the appropriate display format.
Screen Type = 16:10Screen Type = 16:9
Auto/ScaleAuto/Scale
Auto
4:3
Wide
Laptop
SDTV
HDTV
Input resolution
HVHVHV
6404801066800960720
8006001066800960720
10247681066800960720
128010241066800960720
140010501066800960720
160012001066800960720
128072012807201280720
128076812807681200768
128080012808001152800
72057612807201280720
72048012807201280720
128072012807201280720
1920108012807201280720
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User Controls
16:10 Screen480i/p576i/p1080i/p720pPC
4:31066 x 800 center
16:101280 x 800 center
Native
16:9 Screen480i/p576i/p1080i/p720pPC
4:3960 x 720 center
16:91280 x 720 center
Native
Edge Mask
Edge mask function removes the noise in a video image. Edge
mask the image to remove video encoding noise on the edge of
Each I/O has
different setting of
“Edge Mask”.
“Edge Mask” and
“Zoom” can’t work at
same time.
video source.
Zoom
Press the to reduce the size of an image.
Press the to magnify an image on the projection screen.
Image Shift
Press into the next menu as below and then use or to
select item.
1:1 mapping
centered.
1:1 mapping
centered.
1:1 map-
ping (960 x
540) display
1280 x 800
1:1 map-
ping (960 x
540) display
1280 x 720
1280 x 720
center
1280 x 720
center
1:1
mapping
centered.
1:1
mapping
centered.
H: Use or to shift the projected image position horizontally.
V: Use or to Shift the projected image position vertically.
V Keystone
Press the or to adjust image distortion vertically. If the image
looks trapezoidal, this option can help make the image rectangular.
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DISPLAY | 3D
“3D Sync Invert” is
only available when
3D is enabled and
this mode 3D is for
DLP link glass only.
Compatible 3D
source, 3D content
and active shutter
glasses are required
for 3D viewing.
See page 64 for
supported 3D
formats.
3D Mode
Off: Select “Off” to turn 3D settings off for 3D images.
DLP Link: Select “DLP Link” to use optimized settings for DLP
Link 3D images.
3D -> 2D
3D: Display 3D signal.
L (Left): Display the left frame of 3D content.
R (Right): Display the right frame of 3D content.
3D Format
Auto : When a 3D identication signal is detected, the 3D
format is selected automatically.
SBS: Use this mode for “Side-by-side” format 3D content.
Top and Bottom: Use this mode for “Top and Bottom” format 3D
content.
Frame Sequential: Use this mode for “Frame Sequential”
format 3D content.
3D Sync. Invert
Press the “On” to invert left and right frame contents.
Press the “Off” for default frame contents.
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User Controls
SETUP
Language
Choose the multilingual OSD menu. Press or into the sub
menu and then use the or key to select your preferred
language. Press “Enter” to nalize the selection.
Rear-Desktop and
Rear-Ceiling are
to be used with a
translucent screen.
Projection
Front-Desktop
This is the default selection. The image is projected straight on
the screen.
Rear-Desktop
When selected, the image will appear reversed.
Front-Ceiling
When selected, the image will turn upside down.
Rear-Ceiling
When selected, the image will appear reversed in upside down
position.
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“Screen Type” is for
WXGA only.
Menu Location
Choose the menu location on the display screen.
Screen Type
Choose the screen type from16:10 or 16:9.
Projector ID
ID denition can be set up by menu (range 0-99), and allow user
control an individual projector by RS232. Refer to pages 65-69 for
the complete list of RS232 commands.
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SETUP | Security
“Security” depends
on model’s specications.
Security
On: Choose “On” to use security verication when turning on
Off: Choose “Off” to be able to switch on the projector without
Security Timer
Use this function to set how long (Month/Day/Hour) the projector
Password default
value is “1234” (rst
time).
can be used. Once this time has elapsed you will be requested to
enter your password again.
Change Password
First time:
1. Press “ ” to set the password.
2. The password has to be 4 digits.
3. Use number button on the remote to enter your new
Change Password:
1. Press “ ” to input old password.
2. Use number button to enter current password and then
3. Enter new password (4 digits in length) using the number
4. Enter new password again and press “Enter” to conrm.
the projector.
password verication.
password and then press “Enter” key to conrm your
password.
press “Enter” to conrm.
buttons on the remote, then press “Enter” to conrm.
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User Controls
If the incorrect password is entered 3 times, the projector will
automatically shut down.
If you have forgotten your password, please contact your local
ofce for support.
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SETUP |
Audio Settings
Internal Speaker
Choose the “On” or “Off” to turn on or off the internal speaker.
Mute
Choose the “On” to turn mute on.
Choose the “Off” to turn mute off.
Audio input2 Function
Mic: Use Microphone as secondary audio input.
Audio Input2: Use other audio input device as secondary audio
input.
Volume
Press the to decrease the volume.
Press the to increase the volume.
Audio Input
The default audio inputs are on the back panel of the projector.
Use this option to reassign any of the Audio Inputs to the current
image source.
Default: VGA1/VGA2.
Audio1: Video/S-Video.
Audio2: HDMI.
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SETUP | LAN
Settings
Network State
Choose “Connect” to enable LAN network function.
Choose “Disconnect” to disable LAN network function. (Read-
Only mode)
DHCP
If a DHCP server exists in the network to which the projector
is connected, the IP address will automatically be acquired
when you select DHCP On. If DHCP is Off, manually set the IP
Address, Subnet Mask, and Gateway. Use ▲ or ▼ to select the
number of IP address, Subnet Mask, and Gateway. Default value
is off.
IP Address
Select an IP address. Default value is 192.168.0.100.
Subnet Mask
Congure the Subnet Mask of the LAN connection. Default value
is 255.255.255.0.
Gateway
Check the Gateway address with your network/system
administrator if you wish to congure it manually. Default value is
192.168.0.254.
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User Controls
DNS
Check the DNS Server IP address with your network/system
administrator if you wish to congure it manually. Default value is
192.168.0.51.
Apply
Choose “Yes” to save the changes made in network conguration
settings.
MAC Address
Display MAC addresss for the projector.
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User Controls
SETUP | Advanced
Logo
Press to capture an image of the picture currently displayed on
screen. If changes are made they will take effect the next time the
projector is powered on.
Default: The default startup screen.
Neutral: Logo is not displayed on startup screen.
Closed Captioning
Use this function to set the desired startup screen. If changes are
made they will take effect the next time the projector is powered
on.
Off: select “Off” to turn off the closed captioning feature.
CC1:CC1 language: American English.
CC2:CC2 language (depending on the TV channel of the
Use this option to enable / disable input sources. Press to enter
the sub menu and select which sources you require. Press “Enter”
to finalize the selection. The projector will not search for inputs that
are not selected.
Source Lock
On: The projector will only search current input connection.
Off: The projector will search for other signals if the current
input signal is lost.
To turn off the key-
pad lock, press and
hold “Enter” key on
top of the projector
for 5 seconds.
High Altitude
When “On” is selected, the fans will spin faster. This feature is
useful in high altitude areas where the air is thin.
Information Hide
On: Choose “On” to hide the info message.
Off: Choose “Off” to show the “searching” message.
Keypad Lock
When the keypad lock function is “On”, the control panel will be
locked however, the projector can be operated by the remote control. By selecting “Off”, you will be able to reuse the control panel.
Test Pattern
Display a test pattern. There are Grid, White pattern and None.
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(*) The function de-
pends on model’s
specications.
IR Function
On: Choose “On”, the projector can be operated by the remote
control. When you change the setting from “Off” to “On”, it will
display a warning message:
Off: Choose “Off”, you will only be able to use the control panel
keys. When you change the setting from “On” to “Off”, it will
display a warning message:
Top: Choose “Top”, the projector will receive IR signal from
remote control through the top sensor.
Front: Choose “Front”, the projector will receive IR signal from
remote control through the front sensor.
(*)
Background Color
Use this feature to display a “Black”, “Red”, “Blue”, “Green” or
“White”, screen when no signal is available.
Reset
Choose “Yes” to return the display parameters on all menus to the
factory default settings.
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OPTIONS |
Remote Settings
The function of User 1/2/3 keys on the remote control can be selfdened. You can choose a desired function for these keys separately
in this option.
User 1
The available options for User1 key are VGA2/S-Video/LAN/Brightness/Contrast/Sleep Timer.
User 2
The available options for User2 key are VGA2/S-Video/LAN/Brightness/Contrast/Sleep Timer.
User 3
The available options for User3 key are VGA2/S-Video/LAN/Brightness/Contrast/Sleep Timer.
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When Power mode
(Standby) is set to
Eco (<0.5W), the
VGA output and
Audio pass-through
will be deactivated
when the projector is
in standby.
The value of sleep
timer will be reset to
zero after the projector power off.
OPTIONS |
Advanced
Direct Power On
Choose “On” to activate Direct Power mode. The projector will
automatically power on when AC power is supplied, without
pressing the “
remote control.
Auto Power Off (min)
Sets the countdown timer interval. The countdown timer will start,
when there is no signal being sent to the projector. The projector
will automatically power off when the countdown has nished (in
minutes).
Sleep Timer (min)
Sets the countdown timer interval. The countdown timer will start,
with or without a signal being sent to the projector. The projector
will automatically power off when the countdown has nished (in
minutes).
Quick Resume
On: If the projector is accidentally turned off, this feature allows
the projector to be instantly powered on again, if selected
within a period of 100 seconds.
Off: The fan will start cooling the system immediately when user
turns off the projector.
” key on the projector control panel or on the
Power Mode (Standby)
Eco.: Choose “Eco.” to save power dissipation further < 0.5W.
Active: Choose “Active” to return to normal standby and the
VGA out port will be enabled.
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OPTIONS |
Lamp Settings
Lamp Hours
Display the projection time.
Lamp Reminder
Choose this function to show or to hide the warning message
when the changing lamp message is displayed.
The message will appear 30 hours before suggested replacement
of lamp.
Brightness Mode
When ambient tem-
perature is over 40°C
in operating, the
projector will switch
to Eco automatically.
BRIGHT: Choose “BRIGHT” to increase the brightness.
Eco.: Choose “Eco.” to dim the projector lamp which will lower
Dynamic: Choose “Dynamic `” to dim the lamp power which
Eco+: Choose “Eco+” to utilize the latest Eco+ technology `
power consumption and extend the lamp life.
will be based on brightness level of the content and
adjust lamp power consumption between 100% and
30% dynamically. The lamp life will be extended.
which brings together superb performance, improved
lamp life and energy saving features.
Lamp Reset
Reset the lamp hour counter after replacing the lamp.
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OPTIONS |
Optional Filter
Settings
Optional Filter Installed
Select “Yes” to display warning message after 500 hours of use.
Select “No” to turn off warning message.
The default setting for Filter is “No”. After assembling lter, please
turn on the projector then press “Menu”, go to “OPTIONS -> Op-
tional Filter Settings -> Optional Filter Installed” and select “Yes”.
Filter Usage Hours
Display the lter time.
Filter Reminder
Choose this function to show or hide the warning massage when
the changing lter message is displayed. (Factory default setting:
500 hours)
Filter Reset
Reset the dust lter counter after replacing or cleaning the dust
lter.
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Appendices
Troubleshooting
If you experience a problem with your projector,
please refer to the following information. If a
problem persists, please contact your local
reseller or service center.
No image appears on-screen
Ensure all the cables and power connections are correctly and
securely connected as described in the “Installation” section.
Ensure all the pins of connectors are not bent or broken.
Check if the projection lamp has been securely installed. Please
refer to the “Replacing the lamp” section.
Ensure that the “AV Mute” feature is not turned on.
Partial, scrolling or incorrectly displayed image
Press “Re-SYNC” on the remote control or control panel.
If you are using a PC:
For Windows 95, 98, 2000, XP, Windows 7:
1. Open the “My Computer” icon, the “Control Panel” folder, and
then double click on the “Display” icon.
2. Select the “Settings” tab.
3. Verify that your display resolution setting is lower than or equal
to UXGA (1600 × 1200).
4. Click on the “Advanced Properties” button.
If the projector is still not projecting the whole image, you will also
need to change the monitor display you are using. Refer to the
following steps.
5. Verify the resolution setting is lower than or equal to UXGA
(1600 × 1200).
6. Select the “Change” button under the “Monitor” tab.
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7. Click on “Show all devices”. Next, select “Standard monitor
types” under the SP box; choose the resolution mode you need
under the “Models” box.
8. Verify that the resolution setting of the monitor display is lower
than or equal to UXGA (1600 × 1200).
If you are using a Notebook:
1. First, follow the steps above to adjust resolution of the
computer.
2. Press the appropriate keys listed below for your notebook
manufacturer to send signal out from notebook to projector.
Example: [Fn]+[F4]
Acer [Fn]+[F5]
Asus [Fn]+[F8]
Dell [Fn]+[F8]
Gateway [Fn]+[F4]
Mac Apple:
System Preference Display Arrangement Mirror
display
If you experience difculty changing resolutions or your monitor
freezes, restart all equipment including the projector.
The screen of the Notebook or PowerBook computer is not
IBM/Lenovo [Fn]+[F7]
HP/Compaq [Fn]+[F4]
NEC [Fn]+[F3]
Toshiba [Fn]+[F5]
displaying your presentation
If you are using a Notebook PC
Some Notebook PCs may deactivate their own screens when a
second display device is in use. Each has a different way to be
reactivated. Refer to your computer’s manual for detailed
information.
Image is unstable or ickering
Use “Phase” to correct it. See page 35for more information.
Change the monitor color setting on your computer.
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Image has vertical ickering bar
Use “Frequency” to make an adjustment. See page 35 for more
information.
Check and re-congure the display mode of your graphic card to
make it compatible with the projector.
Image is out of focus
Adjust the Focus Ring on the projector lens.
Make sure the projection screen is between the required distance.
See pages 18-19.
The image is stretched when displaying 16:9 DVD title
When you play anamorphic DVD or 16:9 DVD, the projector will
show the best image when the projector display mode is set to
16:9 in the OSD.
If you play 4:3 format DVD titles, please change the format to 4:3
in the projector OSD.
If the image is still stretched, you will also need to adjust the
aspect ratio by referring to the following:
Please setup the display format as 16:9 (wide) aspect ratio type
on your DVD player.
Use of Keystone
is not recommended.
Image is too small or too large
Adjust the Zoom Ring on the top of the projector.
Move the projector closer to or further from the screen.
Press“Menu” button on the remote control, go to “Display
Format” and try the different settings.
Image has slanted sides
If possible, reposition the projector so that it is horizontally
centered on the screen and below the bottom of the screen.
Press “Keystone +/-” button on the remote control until the sides
are vertical.
Use “Display V Keystone” from the OSD to make an adjust-
ment.
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Image is reversed
Select “SETUP Projection” from the OSD and adjust the
projection direction.
The projector stops responding to all controls
If possible, turn off the projector, then unplug the power cord and
wait at least 60 seconds before reconnecting power.
Check that “Keypad Lock” is not activated by trying to control the
projector with the remote control.
Blurry double image
Press “3D Format” button and switch to “Off” to avoid normal 2D
image is blurry double image.
Two images, side-by-side format
Press “3D Format” button and switch to “SBS” for input signal is
HDMI 1.3 2D 1080i side-by-side.
Image does not display in 3D
Check if the battery of 3D glasses is drained.
Check if the 3D glasses is turned on.
When the input signal is HDMI 1.3 2D (1080i side-by-side half),
press “3D Format” button and switch to “SBS”.
Lamp burns out or makes a popping sound
When the lamp reaches its end of life, it will burn out and may
make a loud popping sound. If this happens, the projector will not
turn on until the lamp module has been replaced. To replace the
lamp, follow the procedures in the “Replacing the Lamp” section on
pages 60-61.
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LED lighting message
Steady light
No light
Message
Standby State
(Input power cord)
Power on (Warming)
Lamp lightingBlue
Power off (Cooling)
Error (Over Temp.)
Error (Fan fail)
Error (Lamp fail)
ON/STANDBY
LED
(Blue/Red)(Red)(Red)
Red
Flashing
Blue
Flashing
Blue
Flashing
Red
Flashing
Red
Flashing
Red
Temp-LED
Flashing
Lamp-LED
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On Screen Messages
Temperature warning:
Fan failed:
Lamp warning:
Out of display range:
If the remote control does not work
Check the operating angle of the remote control is within ±20°
both horizontally and vertically of one of the IR receivers on the
projector.
Make sure there are not any obstructions between the remote
control and the projector. Move to within 7 m (±0°) of the projector.
Make sure the batteries are inserted correctly.
Replace batteries if they are exhausted.
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Appendices
Replacing the Lamp
The projector automatically detects the lamp life. When the
lamp life is nearing the end of use, you will receive a warning
message.
When you see this message, please contact your local reseller
or service center to change the lamp as soon as possible.
Make sure the projector has been cooled down for at least 30
minutes before changing the lamp.
Warning: If ceiling mounted, please use caution when
opening the lamp access panel. It is recommended to wear
safety glasses if changing the bulb when ceiling mounted.
“Caution must be used to prevent any loose parts from fall-
ing out of projector.”
Warning: Lamp compartment may be hot! Allow it to cool
down before changing the lamp!
Warning: To reduce the risk of personal injury, do not drop
the lamp module or touch the lamp bulb. The bulb may shatter and cause injury if it is dropped.
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Appendices
The screws on the
5
4
3
2
6
1
7
lamp cover and the
lamp cannot be
removed.
The projector
cannot be turned
on if the lamp
cover has not been
placed back on the
projector.
Do not touch the
glass area of the
lamp. Hand oil can
cause the lamp to
shatter. Use a dry
cloth to clean the
lamp module if it
was accidentally
touched.
Lamp Replacement Procedure:
1. Switch off the power to the projector by pressing the “ ” button.
2. Allow the projector to cool down for at least 30 minutes.
3. Disconnect the power cord.
4. Unscrew the one screw on the cover. 1
5. Lift up and remove the cover. 2
Lift up the lamp handle. 3
6.
7. Press on the both sides then lift up and remove the lamp cord. 4
8. Unscrew the one screw on the lamp module. 5
9. Lift up the lamp handle 6 and remove the lamp module slowly and carefully.
7
10. Turn on the projector and reset the lamp timer.
To replace the lamp module, reverse the previous steps.
only required/supplied in selected
regions with excessive dust.
Installing and Cleaning the Filter
Installing the Filter
Install two lters.1.
Turn on the projector then press “Menu”, go to “OPTIONS -> 2.
Optional Filter Settings -> Optional Filter Installed” and select
“Yes”.
Cleaning the Filter
It is recommended to clean/replace lters every three months or
sooner depending upon the environment by following the steps below.
Switch off the power to the projector by pressing the “1. ” button.
Disconnect the power cord.2.
Remove the lter slowly and carefully.3.
Clean or replace the lter.4.
To install the lter, reverse the previous steps.5.
Reset the lter counter after replacing or cleaning the dust lter. 6.
Press “Menu”, go to “OPTIONS -> Optional Filter Settings ->
Filter Reset”
Removing the Filter
1. Remove the lters from the projector. Remove dust (if any).
2. Turn on the projector.
3. Press “Menu”, go to “OPTIONS -> Optional Filter Settings ->
Optional Filter Installed” and select “No”. (Remove when you
pull out the dust lter and would not install it again.)
4. Close the OSD.
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Appendices
For widescreen
resolution (WXGA),
the compatibility
support is depen-
dent on Notebook/
PC models.
Please note that using resolutions other
than native 800 x
600 (SVGA model),
1024 x 768 (XGA
model), 1280 x 800
(WXGA model) may
result in some loss
of image clarity.
n 7E 30 30 32 34 20 a 0D Color Settings/White Red n = -50 (a=2D 35 30) ~ 50 (a=35 30)
)03 53=a( 05 ~ )03 53 D2=a( 05- = n neerG D0 a 02 53 23 03 03 E7 n 52XX~
)03 53=a( 05 ~ )03 53 D2=a( 05- = n eulB D0 a 02 63 23 03 03 E7 n 62XX~
teseR D0 13 02 33 33 03 03 E7 1 33XX~
---------------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------- ---------------------------------~XX34 n 7E 30 30 33 34 20 a 0D BrilliantCo
XX=00-99, projector's ID,
XX=00 is for all projectors
1. There is a <CR> after
all ASCII commands.
2. 0D is the HEX code
for <CR> in ASCII
code.
Baud Rate : 9600
Data Bits: 8
Parity: None
Stop Bits: 1
Flow Control : None
UART16550 FIFO: Disable
Projector Return (Pass): P
Projector Return (Fail): F
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Appendices
------------------------------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------~XX45 n 7E 30 30 34 34 20 a 0D Color (Saturation) n = -50 (a=2D 35 30) ~ 50 (a=35 30)
)03 53=a( 05 ~ )03 53 D2=a( 05- = n tniT D0 a 02 53 43 03 03 E7 n 44XX~
~XX61 n 7E 30 30 36 31 20 a 0D Edge mask n = 0 (a=30) ~ 10 (a=31 30)
)53 23=a( 52 ~ )53 D2=a( 5- = n mooZ D0 a 02 23 63 03 03 E7 n 26XX~
~XX63 n 7E 30 30 36 33 20 a 0D H Ima
ge Shif
t n = -100 (a=2D 31 30 30) ~ 100 (a=31 30 30)
~XX64 n 7E 30 30 36 34 20 a 0D V Image Shift n = -100 (a=2D 31 30 30) ~ 100 (a=31 30 30)
~XX66 n 7E 30 30 36 36 20 a 0D V Keystone n = -40 (a=2D 34 30) ~ 40 (a=34 30)
------------------------------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------~XX72 1 7E 3
--~XX99 1 7E 30 30 39 39 20 31 0D RS232 Alert Reset Reset System Alert
~XX210 n 7E 30 30 32 30 30 20 n 0D Display message on the OSD n: 1-30 characters
12F., No. 213, Sec. 3, Beixin Rd., +886-2-8911-8600
Xindian Dist., New Taipei City 231, +886-2-8911-6550
Taiwan, R.O.C. services@optoma.com.tw
www.optoma.com.tw asia.optoma.com
Hong Kong
Unit A, 27/F Dragon Centre,
79 Wing Hong Street, +852-2396-8968
Cheung Sha Wan, +852-2370-1222
Kowloon, Hong Kong www.optoma.com.hk
China
5F, No. 1205, Kaixuan Rd., +86-21-62947376
Changning District +86-21-62947375
Shanghai, 200052, China www.optoma.com.cn
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Appendices
Regulation & Safety Notices
This appendix lists the general notices of your projector.
FCC notice
This device has been tested and found to comply with the
limits for a Class B digital device pursuant to Part 15 of the
FCC rules. These limits are designed to provide reasonable
protection against harmful interference in a residential
installation. This device generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio
communications.
However, there is no guarantee that interference will not
occur in a particular installation. If this device does cause
harmful interference to radio or television reception, which can
be determined by turning the device off and on, the user is
encouraged to try to correct the interference by one or more of
the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the device and receiver.
• Connect the device into an outlet on a circuit different
from that to which the receiver is connected.
• Consult the dealer or an experienced radio/television
technician for help.
Notice: Shielded cables
All connections to other computing devices must be
made using shielded cables to maintain compliance with
FCC regulations.
Caution
Changes or modications not expressly approved by the
manufacturer could void the user’s authority, which is
granted by the Federal Communications Commission, to
operate this projector.
Page 74
74
English
Appendices
Operation conditions
This device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions:
1. This device may not cause harmful interference and
2. This device must accept any interference received,
including interference that may cause undesired
operation.
Notice: Canadian users
This Class B digital apparatus complies with Canadian
ICES-003.
Remarque à l’intention des utilisateurs
canadiens
Cet appareil numerique de la classe B est conforme a la
norme
• R & TTE Directive 1999/5/EC (if product has RF function)
Disposal instructions
Do not throw this electronic device into the
trash when discarding. To minimize pollution
and ensure utmost protection of the global
environment, please recycle it.
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