BenQ Mp723 Users Manual

							Operation 51
SYSTEM SETUP: Advanced menu
FUNCTION
(default setting / 
value)DESCRIPTION
Quick 
Cooling
(On)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.
High Altitude 
Mode
(Off)A mode for operation in high altitude areas. See Operating in a high 
altitude environment on page 43 for details.
Audio 
Settings
Mute (Off)
Volume (5)
Power on/off ring tone (On)
See Adjusting the sound on page 44 for details.
Menu 
Settings
Menu Display Time (5 sec)
Sets the length of time the OSD will remain active after your last button 
press. The range is from 5 to 30 seconds in 5-second increments.
Menu Position (Center)
Sets the On-Screen Display (OSD) menu position.
Lamp 
Settings
Lamp Mode (Normal)
Setting the projector in Economic mode also extends the lamp timer 
automatic shutdown feature. See Setting Lamp Mode as Economic on 
page 54 for details.
Reset Lamp Timer
Once the lamp is renewed, select Reset to return the lamp timer to 0. See 
Resetting the lamp timer on page 58 for details.
Equivalent Lamp Hour
Displays the number of hours the lamp has been used. See Getting to 
know the lamp hour on page 54 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 28 for details.
Change Security Settings
Power On Lock (Off)
Splash Screen Lock (Off)
See Utilizing the password function on page 28 for details.
Reset All 
SettingsReturns all settings to the factory preset values.
The following settings will still remain: Position, Phase, H. Size, User 
1, User 2, Language, Projector Position, High Altitude Mode.
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							Operation 52
INFORMATION menu
This menu shows you the current operating status of the projector.
Some picture adjustments are available only when certain input sources are in use. 
Unavailable adjustments are not shown on the screen.
FUNCTIONDESCRIPTION
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, or RGB.
Equivalent Lamp Hour
Displays the number of hours the lamp has been used.
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							Maintenance 53
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 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 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 45 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, 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 61 or 
consult your dealer about the range.
• Retract the adjuster feet.
• Remove the batteries 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. When 
you carry the projector yourself, please use the original box or provided soft carry case.
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							Maintenance 54
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 as Economic 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 highlighted.
2. Press   to highlight Lamp Settings and press Mode/enter. The Lamp Settings page 
displays.
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 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 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 > 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.
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							Maintenance 55
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. 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 59 for details.
The following Lamp warning displays will remind you to change the lamp.
StatusMessage
The lamp has been in operation for 3000 hours. 
Install a new lamp for optimal performance. If the 
projector is normally run with Economic Mode 
selected (See Lamp Mode (Normal) on page 51), 
you may continue to operate the projector until 
the 3950 hour lamp warning appears.
The lamp has been in operation for 3950 hours. A 
new lamp should be fitted to avoid the 
inconvenience when the projector runs out of 
lamp time.
The lamp has been in operation for 4000 hours. 
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. If the lamp is not 
replaced beforehand, it must be replaced after 
3000 hours usage.
The lamp MUST be replaced before the projector 
will operate normally.
OK
Order Replacement Lamp
Lamp > 3000 Hours
Notice
OK
Replace Lamp Soon 
Lamp > 3950 Hours
Notice
OK
Replace Lamp Now 
Lamp > 4000 Hours
Lamp usage time exceeded
Notice
OK
Lamp-usage time exceeded
Replace lamp (refer to User manual)
Then reset lamp timer
Notice
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							Maintenance 56
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 
BenQ 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 wall socket. If the lamp is 
hot, avoid burns by waiting for approximately 45 minutes until the lamp has cooled.
2. Use a coin to turn the screw counterclockwise 
until the lamp cover loosens. 
3. Remove the lamp cover from the projector.
• 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 screw that secures the lamp.
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							Maintenance 57 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. As shown in the figure, lower the new lamp 
first into the connector on the projector and 
align the two holes on the projector.
7. Tighten the screw that secures the lamp.
• Loose screw may cause a bad connection, 
which could result in malfunction.
• Do not over tighten the screw.
8. Ensure the handle is fully laid flat and 
locked in place.
9. Replace the lamp cover on the projector.
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							Maintenance 5811. Restart the projector.
Do not turn the power on with the lamp cover removed. 
Resetting the lamp timer
12. After the startup logo, open the On-Screen 
Display (OSD) menu. Go to the SYSTEM 
SETUP: Advanced > Lamp Settings menu. 
Press Mode/enter on the projector or ENTER 
on the remote control. The Lamp Settings 
page displays. Highlight Reset Lamp Timer. A 
warning message displays asking if you want 
to reset the lamp timer. Highlight Reset and 
press Mode/enter on the projector or ENTER 
on the remote control. The lamp time will be 
reset to 0.
Do not reset if the lamp is not new or replaced as 
this could cause damage. 
10. Use a coin to turn the screw clockwise until the 
lamp cover is secured. 
• Loose screw may cause a bad connection, which 
could result in malfunction.
• Do not over tighten the screw.
Reset Lamp Timer?
Reset
Cancel
Notice
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							Maintenance 59
Indicators
LightStatus & Description
PowerTe m pLamp
Power events
Orange Orange OrangeThe projector has just been connected to a power outlet or the 
lamp door is open.
Orange Off OffStand-by mode.
Green
FlashingOff OffPowering up.
Green Off OffNormal operation.
Orange
FlashingOff Off
1. The projector needs 90 seconds to cool down as it was 
abnormally shut down without the normal cooling down 
process. Or
2. The projector needs to cool for 90 seconds after the 
power is turned off.
Orange
FlashingOff OffThe projector has shutdown automatically. If you try to re-start 
the projector, it w ill shutdow n again. Please contact your dealer 
for assistance.
Lamp events
Orange
FlashingOff RedThe projector has shutdown automatically. If you try to re-start 
the projector, it w ill shutdow n again. Please contact your dealer 
for assistance.
Off Off Red1. The projector needs 90 seconds to cool down. Or
2. Please contact your dealer for assistance.
Thermal events
Off Red Off
The projector has shutdown automatically. If you try to re-start 
the projector, it w ill shutdow n again. Please contact your dealer 
for assistance.
Off Red Red
Off Red Green
Off Red Orange
Red Red Red
Red Red Green
Red Red Orange
Green Red Red
Green Red Green
Green Red Orange
Orange Red Red
Orange Red Green
Orange Red Orange
Off Green Red
Off Green Green
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							Troubleshooting 60
Troubleshooting
The projector does not turn on.
No picture
Blurred image
Remote control does not work
The password is incorrect
CauseRemedy
There is no power from the power 
cable.Plug the power cord into the AC inlet on the 
projector, and plug the power cord into the 
power outlet. If the power outlet has a switch, 
make sure that it is switched on.
Attempting to turn the projector on 
again during the cooling process.Wait until the cooling down process has 
completed.
CauseRemedy
The video source is not turned on or 
connected correctly.Turn the video source on and check that the 
signal cable is connected correctly.
The projector is not correctly 
connected to the input source device.Check the connection.
The input signal has not been 
correctly selected.Select the correct input signal with the 
SOURCE key on the projector or remote 
control.
The lens cover is still closed. Open the lens cover.
CauseRemedy
The projection lens is not correctly 
focused.Adjust the focus of the lens using the focus 
ring.
The projector and the screen are not 
aligned properly.Adjust the projection angle and direction as 
well as the height of the unit if necessary.
The lens cover is still closed. Open the lens cover.
CauseRemedy
The batteries are out of power. Replace the batteries with new ones.
There is an obstacle between the 
remote control and the projector.Remove the obstacle.
You are too far away from the 
projector.Stand within 8 meters (26 feet) of the 
projector.
CauseRemedy
You do not remember the password.Please see Entering the password recall pro-
cedure on page 30 for details.
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