BenQ Projector MX723 User Manual

							
Operation 61
FUNCTIONDESCRIPTION
Panel Key Lock Disables or enables all panel key functions except Power on the 
projector and keys on the remote control.
Background 
Color Allows you to select which background color will display when 
no signal is input into the projector. Four options are available: 
BenQ logo, Black, Blue, or Purple.
Splash Screen Allows you to select which logo screen will display during 
projector start-up. Four options are available: BenQ logo, Black, 
or Blue.
High Altitude 
Mode A mode for operation in high altitude areas. See 
Operating in a 
high altitude environment on page 44  for details.
Audio Settings Allows you to enter the audio setting menu. See 
Adjusting the 
sound on page 45  for details.
Mute
Sets the mute function.
Volume
Adjusts the audio volume level.
Microphone Volume
Adjusts the microphone’s audio volume level.
Power On/Off Ring Tone
Sets the power on/off ring tone. 
Lamp Settings Lamp Mode
See 
Setting Lamp Mode on page 66  for details
Reset lamp timer
See  Resetting the lamp timer on page 71  for details.
Lamp Information
See  Getting to know the lamp hour on page 66  for details on 
how the total lamp hour is calculated.
4. SYSTEM SETUP: Basic menu 5. SYSTEM SETUP: Advanced menu 
						

							
Operation
62
FUNCTIONDESCRIPTION
Security 
Settings Change Password
You will be asked to enter the current password before changing 
to a new one.
Change Security Settings
Input current password to activate 
Power On Lock and Web 
Control Lock  functions.
Power On Lock
See  Securing the projector on page 33  for details.  
Web Control Lock
See “BenQ Network Projector Operation Guide” 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. This 
function is intended for qualified service personnel.
Te s t  P a t t e r n Selecting 
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).
Set your screen aspect ratio to 4:3. This function is 
not available when the aspect ratio is “16:9”, 
“16:10” or “Real”.
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 63
FUNCTIONDESCRIPTION
Standby 
Settings Network
Enable network standby mode
Selecting 
On enables the function, and the projector can be 
monitored or controlled over a network when it is in standby 
mode.
Switch to normal standby mode
Sets the timer to switch to normal standby mode.
Microphone
Selecting  On enables the function, and the microphone can be 
used even 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 
and  MONITOR-OUT  jacks are correctly connected to devices. 
See  Connecting a monitor on page 23  for how to make the 
connection.
Enabling this function slightly increases the 
standby power consumption.
The Monitor Out only works when an appropriate 
D-Sub input is made to the COMPUTER 1 jack.
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. See  
Connection on page 21  for how to make the connection.
Enabling this function slightly increases the 
standby power consumption.
Network 
Settings See “BenQ Network Projector Operation Guide” for details.
Reset All 
Settings Returns all settings to the factory preset values.
The following settings will still remain: User 1, 
User 2, Projector Installation, Color Space 
Conversion, High Altitude Mode, Security Settings, 
Baud Rate and Network Settings
5. SYSTEM SETUP: Advanced menu 
						

							
Operation
64
FUNCTIONDESCRIPTION
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, or RGB.
Lamp Usage Time
Displays the number of hours the lamp has been used.
Firmware Version
Shows firmware version.
6. INFORMATION menu 
						

							
Maintenance 65
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 
cleaner and gently wipe the lens surface.
• Never use any type of abrasive pad, al kaline/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.
Never rub the lens with abrasive materials.
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 48  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, moisten a soft cloth with water and a neutral 
pH detergent. Then wipe the case.
Never use wax, alcohol, benzene, th inner 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 75  
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 projector with its original packing or equivalent. 
						

							
Maintenance
66
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. The method of calculating the equivalent 
lamp hour is as follows:
Total (equivalent) lamp hour
= 1 (hours used in Economic mode) + 4/3 (hours used in normal mode)
See  Setting Lamp Mode  below for more information on Economic 
mode.
The lamp hour in Economic mode is calculated  as 3/4 of that in Normal mode. That is, 
using the projector in Economic mode helps to extend the lamp hour by 1/3.
To obtain the lamp hour information:
1. Press  Menu/Exit  and then press  /  until the  SYSTEM SETUP: Advanced  
menu is selected.
2. Press   to select  Lamp Settings and press Mode/Enter . The Lamp 
Settings  page displays.
3. Select  Lamp Information  and press Mode/Enter .
4. You will see the  Equivalent Lamp Hour  information displaying on the menu.
5. 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. To keep the lamp life as long as possible, 
you can do the following settings via the OSD menu or remote control.
Setting Lamp Mode
Using Economic /SmartEco mode will reduces system noise and power 
consumption. If the  Economic
/SmartEco mode is selected, the light output will be 
reduced and result in darker projected  pictures, the projector protected for longer 
working life.
Setting the projector in Economic /SmartEco mode also extends the lamp operation 
life. To set  Economic
/SmartEco mode, go into the SYSTEM SETUP: Advanced  > 
Lamp Settings  > Lamp Mode
 menu and press  / . .
The lamp modes are defined as the chart below.
Lamp ModeDescription
Normal Provides full lamp brightness
Economic Lower brightness to extend the lamp life and decreases the fan 
noise
SmartEco Adjusts the lamp power automatically depending on the 
content brightness level 
						

							
Maintenance 67
Setting Auto Power Off
This function allows the projector to turn off automatically if no input source 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
68
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.
The Lamp indicator light and Temperature warning light will light up if the 
lamp becomes too hot. See  Indicators on page 72 for details.
The following lamp warning displays will remind you to change the lamp.
The warning messages below are for reference only. Please follow the 
actual on-screen instructions to prepare and replace 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 ( Setting Lamp Mode on page 66 ), 
you may continue to operate the projector 
until the next lamp warning appears.
A new lamp should be fitted to avoid the 
inconvenience when the projector runs out of 
lamp time.
It is strongly recommended that you replace 
the lamp at this stage. 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.
The lamp MUST be replaced before the 
projector will operate normally. 
						

							
Maintenance 69
Replacing the lamp (FOR SERVICE PERSONNEL 
ONLY)
• Hg - Lamp contains mercury. Manage in accordance with local disposal laws. See www.lamprecycle.org.
• 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.
• 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 comparent 
when the lamp is removed.
• This lamp contains mercury. Consult your local hazardous waste  regulations to dispose of th is lamp in a proper manner.
• To assure optimal performance from  the projector, it is recommended 
that you purchase a BenQ projector lamp for lamp replacement.
• Ensure good ventilation when handling broken lamps. We recommend  that you use respirators, safety glasse s, goggles or face shield and wear 
protective clothing such as gloves.
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 on the lamp cover. 
						

							
Maintenance
70 3. Remove the lamp cover by (a) 
pushing the lamp cover upward and 
(b) lifting it off.
• 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.
4. Loosen the screws that secure the  lamp.
5. 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 
of the projected images.
6. Insert the new lamp into the lamp  comparent and make sure it fits in 
the projector.
(a)(b)