BenQ Mx815st/mx815st+/mx816st/mw817st Digital Projector User Manual

							Operation 41
Function Description
Operation 
Settings
Direct Power On
Allows the projector to turn on automatically once the power is fed 
through the power cord.
Signal Power On
Sets whether to turn the projector directly on without pressing the 
POWER key on the projector when the projector is in standby 
mode and the signal is feed through the VGA cable.
Auto Power Off
Allows the projector to turn off automatically if no input signal is 
detected after a set period of time. See Setting Auto Power Off on 
page 46 for details.
Quick Cooling
Enables or disables the Quick Cooling function. Selecting On enables 
the function and projector cooling time will be shortened from a 
normal 90-second duration to approximately 30 seconds.
Blank Timer
Sets the image blank time when the Blank feature is activated, once 
elapsed the image will return to the screen. See Hiding the image on 
page 32 for details.
Sleep Timer
Sets the auto-shutdown timer.
Panel Key 
LockDisables or enables all panel key functions except   POWER on the 
projector and keys on the remote control. See Locking control keys 
on page 32 for details.
Background 
ColorSets the background color for the projector.
Splash 
ScreenAllows you to select which logo screen will display during projector 
start-up.
SYSTEM SETUP: Basic men 
						

							Operation 42
Function Description
High 
Altitude 
ModeA mode for operation in high altitude areas. See Operating in a high 
altitude environment on page 33 for details.
Audio 
Settings
Mute
Volume
Power On/Off Ring Tone
See Adjusting the sound on page 33 for details.
Lamp 
Settings
Lamp Mode
See Setting Lamp Mode as Economic on page 46 for details.
Reset Lamp Timer
See Resetting the lamp timer on page 50 for details.
Equivalent Lamp Hour
See Getting to know the lamp hour on page 46 for details on how the 
total lamp hour is calculated.
Security 
Settings
Change Password
You will be asked to enter the current password before changing to a 
new one. See Utilizing the password function on page 22 for details.
Change Security Settings
Power On Lock
Splash Screen Lock
See Utilizing the password function on page 22 for details.
Baud Rate
Selects a baud rate that is identical with your computer’s so that you 
can connect the projector using a suitable RS-232 cable and update or 
download the projector’s firmware. This function is intended for 
qualified service personnel.
Test PatternSelecting On enables the function and the projector displays the grid 
test pattern. It helps you adjust the image size and focus and check that 
the projected image is free from distortion.
Closed 
Caption
Closed Caption Enable
Activates the function by selecting On 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).
Caption Version
Selects a preferred closed captioning mode. To view captions, select 
CC1, CC2, CC3, or CC4 (CC1 displays captions in the primary 
language in your area).
5. SYSTEM SETUP: Advanced menu 
						

							Operation 43
Function Description
Standby 
Settings
Network
Selecting On enables the function. The projector is able to provide the 
network function when it is in standby mode.
Monitor Out
Selecting On enables the function. The projector can output a VGA 
signal when it is in standby mode and the COMPUTER 1 jack is 
correctly connected to devices. See Connection on page 16 for how 
to make the connection.
Audio Pass Through
The projector can play sound when it is in standby mode and the 
corresponding jacks are correctly connected to devices. Press  /  to 
choose the source that you wish to use. When you select Computer 
1 or Computer 2, audio signal can only be fed into the AUDIO-IN 1 
or AUDIO-IN 2 jack. When you select Video,S-Video, audio signal 
can only be fed into the AUDIO-IN L/R jacks. There is no need to 
connect the audio cable when HDMI is selected since the HDMI cable 
carries audio signal. 
See Connection on page 16 for how to make the connection. 
Enabling this function slightly increases the standby power consumption.
Network 
Settings
Wired LAN
See BenQ Network Projector Operation Guide for details.
AMX Device Discovery
Selecting On enables the function. When AMX Device Discovery is 
On, the projector can be detected by AMX controller.
Mac Address
Displays the mac adress of this projector.
Reset All 
SettingsReturns all settings to the factory preset values.
The following settings will still remain: Phase, H. Size, User 1, User 2, 
Color Space Conversion, Projector Position, High Altitude Mode, 
Security Settings, Network Settings and Baud Rate.
5. SYSTEM SETUP: Advanced menu 
						

							Operation 44
Function Description
Current 
System 
Status
Source
Shows the current signal source.
Picture Mode
Shows the selected mode in the PICTURE menu.
Resolution
Shows the native resolution of the input signal.
Color System
Shows input system format: NTSC, PAL, SECAM, YUV, or RGB.
Equivalent Lamp Hour
Displays the number of hours the lamp has been used.
Firmware Version
Shows the firmware version of your projector.6. INFORMATION menu 
						

							Maintenance 45
Maintenance
Care of the projector
Your projector needs little maintenance. The only thing you need to do on a regular basis 
is to keep the lens and case clean.
Never remove any parts of the projector except the lamp. Contact your dealer if other 
parts need replacing.
Cleaning the lens
Clean the lens whenever you notice dirt or dust  on the surface. Please be sure to turn off 
the projector and let it cool down co mpletely before cleaning the lens.
•  Use a canister of compressed air to remove dust. 
•  If there is dirt or smears, use lens-cleaning paper or moisten a soft cloth with lens  cleaner and gently wipe the lens surface.
•  Never use any type of abrasive pad, alkaline/ acid cleaner, scouring powder, or volatile 
solvent, such as alcohol, benzene, thinner  or insecticide. Using such materials or 
maintaining prolonged contact with rubber or vinyl materials may result in damage to 
the projector surface and cabinet material.
Cleaning the projector case
Before you clean the case, turn the projector off using the proper shutdown procedure as 
described in  Shutting down the projector on page 34  and unplug the power cord.
•  To remove dirt or dust, wipe the case with a soft, lint-free cloth.
•  To remove stubborn dirt or stains, moiste n a soft cloth with water and a neutral pH 
detergent. Then wipe the case.
Never use wax, alcohol, benzene,  thinner or other chemical detergents. These can damage the case.
Storing the projector
If you need to store the projector for an extended time, please follow the instructions 
below:
•  Make sure the temperature and humidity of the storage area are within the 
recommended range for the projector. Please refer to  Specifications on page 53  or 
consult your dealer about the range.
•  Retract the adjuster feet.
•  Remove the battery from the remote control.
•  Pack the projector in its original packing or equivalent.
Transporting the projector
It is recommended that you ship the projecto r with its original packing or equivalent. 
When you carry the projector yourself, please  use the original box or the soft carry case. 
						

							Maintenance 46
Lamp information
Getting to know the lamp hour
When the projector is in operation, the duration (in hours) of lamp usage is automatically 
calculated by the built-in timer. 
See Setting Lamp Mode as Economic below for more information on Economic mode.
To obtain the lamp hour information:
1. Press MENU/EXIT and then press  /  to highlight the SYSTEM SETUP: 
Advanced menu.
2. Press  to highlight Lamp Settings and press MODE/ENTER. The Lamp 
Settings page displays.
3. You will see the Equivalent Lamp Hour information displaying on the menu.
4. To leave the menu, press MENU/EXIT.
You can also get the lamp hour information on the INFORMATION menu.
Extending lamp life
The projection lamp is a consumable item that normally can last up to 3000-4000 hours 
with proper usage. To keep the lamp life as long as possible, you can do the following 
settings via the OSD menu.
•  Setting Lamp Mode as Economic
Using Economic mode reduces system noise and power consumption by 20%. If the 
Economic mode is selected, the light output will be reduced and result in darker 
projected pictures.
Setting the projector in Economic mode also extends the lamp operation life. To set 
Economic mode, go into the SYSTEM SETUP: Advanced > Lamp Settings > 
Lamp Mode menu and press  / .
•  Setting Auto Power Off
This function allows the projector to turn off automatically if no input signal is detected 
after a set period of time to prevent unnecessary waste of lamp life.
To  s e t  Auto Power Off, go into the SYSTEM SETUP: Basic > Operation Settings 
> Auto Power Off menu and press  / . The time period can be set from 5 to 30 
minutes in 5-minute increments. If the preset time lengths are not suitable for your 
presentation, select Disable. The projector will not automatically shut down in a certain 
time period. 
						

							Maintenance 47
Timing of replacing the lamp
When the Lamp indicator lights up red or a message appears suggesting it is time to 
replace the lamp, please install a new lamp or consult your dealer. An old lamp may cause a 
malfunction in the projector and in some instances the lamp may explode. 
Go to http://lamp.benq.com for a replacement lamp.
The LAMP indicator light and TEMPerature warning light will light up if the lamp becomes too hot. 
Turn the power off and let the projector cool for 45 minutes. If the Lamp or Temp indicator still lights up after 
turning the power back on, please contact your dealer. See Indicators on page 51 for details.
The following Lamp warning displays will remind you to change the lamp.
XXXX shown in the above messages are numbers that vary depending on different models.
StatusMessage
Install a new lamp for optimal performance. If the 
projector is normally run with Economic 
selected (See Getting to know the lamp hour on 
page 46), you may continue to operate the 
projector until the next hour lamp warning 
appears.
Press MODE/ENTER to dismiss the message.
It is strongly recommended that you replace the 
lamp at this age. The lamp is a consumable item. 
The lamp brightness diminishes with use. This is 
normal lamp behavior. You can replace the lamp 
whenever you notice that the brightness level has 
significantly diminished.
Press MODE/ENTER to dismiss the message.
The lamp MUST be replaced before the projector 
will operate normally.
Press MODE/ENTER to dismiss the message.
OK Order Replacement Lamp
Lamp>XXXX Hours
Order a new lamp at lamp.benq.com
Notice
OK
Notice
Replace Lamp SoonLamp>XXXX Hours
Order a new lamp at lamp.benq.com
OK
Notice
Replace Lamp NowLamp>XXXX Hours
Order a new lamp at lamp.benq.com
OK Out of Lamp Usage Time
Replace lamp (refer to User Manual)
Then reset lamp timer
Order a new lamp at lamp.benq.com
WARNING 
						

							Maintenance 48
Replacing the lamp
•  To reduce the risk of electrical shock, always turn the projector off and disconnect the power cord before 
changing the lamp.
•  To reduce the risk of severe burns, allow the projector to cool for at least 45 minutes before replacing the 
lamp.
•  To reduce the risk of injuries to fingers and damage to internal components, use caution when removing 
lamp glass that has shattered into sharp pieces.
•  To reduce the risk of injuries to fingers and/or compromising image quality by touching the lens, do not 
touch the empty lamp compartment when the lamp is removed.
•  This lamp contains mercury. Consult your local hazardous waste regulations to dispose of this lamp in a 
proper manner.
•  To assure optimal performance from the projector, it is recommended that you purchase a qualified 
projector lamp for lamp replacement.
•  If lamp replacement is performed while the projector is suspended upside-down from the ceiling, make 
sure that no one is underneath the lamp socket to avoid any possible injury or damage to the human eyes 
caused by fractured lamp.
1. Turn the power off and disconnect the projector from the power outlet. If the lamp 
is hot, avoid burns by waiting for approximately 45 minutes until the lamp has 
cooled.
2. Loosen the screw that secures the lamp 
cover on the side of the projector until 
the lamp cover loosens.
3. Remove the lamp cover from the 
projector.
4. Remove the protection film.
•  Do not turn the power on with the lamp cover 
removed.
•  Do not insert your fingers between the lamp and the 
projector. The sharp edges inside the projector may 
cause injuries.
5. Disconnect the lamp connector from the 
projector.
6. Loosen the screw that secures the lamp.
7. Lift the handle so that it stands up.
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							Maintenance 49 15. Connect the power and restart the projector.
Do not turn the power on with the lamp cover removed. 
8. Use the handle to slowly pull the lamp out of 
the projector.
•  Pulling it too quickly may cause the lamp to break and 
scatter broken glass in the projector.
•  Do not place the lamp in locations where water might 
splash on it, children can reach it, or near flammable 
materials.
•  Do not insert your hands into the projector after the 
lamp is removed. If you touch the optical components 
inside, it could cause color unevenness and distortion of 
the projected images.
9. As shown in the figure, lower the new lamp.
10. Reconnect the lamp connector to the 
projector.
11. Tighten the screw that secures the lamp.
12. Ensure the handle is fully laid flat and locked 
in place.
•  Loose screw may cause a bad connection, which could 
result in malfunction.
•  Do not over tighten the screw.
13. Replace the lamp cover on the projector.
14. Tighten the screw that secures the lamp 
cover.
•  Loose screw may cause a bad connection, which could 
result in malfunction.
•  Do not over tighten the screw.
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							Maintenance 50Resetting the lamp timer
16. After the startup logo, open the On-Screen Display (OSD) menu. Go to the 
SYSTEM SETUP: Advanced > Lamp Settings menu. Press MODE/ENTER. 
The Lamp Settings page displays. Highlight Reset Lamp Timer. A warning 
message is displayed asking if you want to reset the lamp timer. Highlight Reset and 
press MODE/ENTER. The lamp time will be reset to “0”.
Do not reset if the lamp is not new or replaced as this could cause damage.