BenQ Projector MX810ST/MW811ST/MX812ST User Manual

Operation 61
Function Description
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 38 for details.
Background 
ColorSets the background color for the projector.
Splash 
ScreenAllows you to select which logo screen will display during projector 
start-up. The following options are available: BenQ logo, My Screen, 
Black screen, Blue screen.
My ScreenCaptures and stores the projected picture as My...

Operation 62
Function Description
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...

Operation 63
Function Description
FAQ-Image 
and 
Installation
Displays possible solutions to problems you may encounter.FAQ-
Features and 
Service
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...

Maintenance 64
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. 
•  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...

Maintenance 65
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 
is displayed.
3. You will see the...

Maintenance 66
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....

Maintenance 67
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...

Maintenance 687. Lift the handle so that it stands up. 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...

Maintenance 69 14. Connect the power and restart the projector.
Do not turn the power on with the lamp cover removed. 
Resetting the lamp timer
15. 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 is displayed. 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...

Maintenance 70
Indicators
LightStatus & Description
Power events
Orange Off OffStand-by mode.
Green
FlashingOff OffPowering up.
Green Off OffNormal operation.
Orange
FlashingOff Off
•  The projector needs 90 seconds to cool down as it was 
abnormally shut down without the normal cooling down 
process.
•  The projector needs to cool for 90 seconds after the power 
is turned off.
•  The projector has shut down automatically. If you try to re-
start the projector, it will shut down again. Please contact...