BenQ Mx819st Users Manual

Operation 41
Function Description
Picture ModePre-defined picture modes are provided so you can optimize your 
projector image set-up to suit your program type. See Selecting a 
picture mode on page 28 for details.
Reference 
ModeSelects a picture mode that best suits your need for the image quality 
and further fine-tune the image based on the selections listed on the 
same page below. See Setting the User 1/User 2 mode on page 28 
for details.
BrightnessAdjusts the brightness of the image. See...

Operation 42
Function Description
Presentation 
TimerReminds the presenter to finish the presentation within a certain time 
frame. See Setting the presentation timer on page 31 for details.
LanguageSets the language for the On-Screen Display (OSD) menus. See Using 
the menus on page 22 for details.
Projector 
InstallationThe projector can be installed on a ceiling or behind a screen, or with 
one or more mirrors. See Choosing a location on page 14 for details.
Menu 
Settings
Menu Display Time
Sets the...

Operation 43
Function Description
Remote 
ReceiverAllows you to enable all the remote receivers or one specific remote 
receiver on the projector.
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 33 for details.
Background 
ColorSets the background color for the projector.
Splash 
ScreenAllows you to select which logo screen will display during projector 
start-up.
High 
Altitude 
ModeA mode for...

Operation 44
Function Description
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...

Operation 45
Function Description
Current 
System 
Status
Source
Shows the current signal source.
Picture Mode
Shows the selected mode in the PICTURE menu.
Lamp Mode
Shows the current lamp mode.
Resolution
Shows the native resolution of the input signal.
3D Format
Shows the current 3D mode.
Color System
Shows input system format: NTSC, PAL, SECAM, YUV, or RGB.
Equivalent Lamp
Displays the number of hours the lamp has been used.
Firmware Version
Shows the firmware version of your projector.
6. INFORMATION...

Maintenance 46
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, unplug the power cable and let it cool down completely before cleaning the 
lens.
•  Use a canister...

Maintenance 47
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. 
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 information displaying on the menu.
4. To leave the menu, press...

Maintenance 48
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 TEMP (Temperature) warning light will light up if the lamp becomes 
too hot. Turn the power off and let the projector cool for 45...

Maintenance 49
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 507. 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.
8. As shown in...