BenQ Mp620/mp720/mp720p Digital Projector Users Manual

							Operation 35
2. Pro-Picture menu
Some picture adjustments are available only when certain input sources are in use. 
Unavailable adjustments are not shown on the screen.
FUNCTION 
(default 
setting / value)
DESCRIPTION
Auto Resize 
(on)
Automatically resizes the input signal pixel resolution to the native resolution 
of the projector.
On: The pixel resolution of the input signal is converted to the native 
resolution of the projector (1024 x 768). For input signals with lower 
resolutions, gaps in the pixels are automatically interpolated into the image 
before being projected. This may distort the image clarity.
Off: The image is projected as its original resolution, with no pixel conversion. 
For input signals with lower resolutions, the projected image will display 
smaller than if resized to full screen. You could adjust the zoom setting or move 
the projector towards the screen to increase the image size if necessary. You 
may also need to refocus the projector after making these adjustments. 
Aspect Ratio 
(4:3)
There are two aspect ratio settings.
1. 4:3 (for a standard screen)     2. 16:9 (for a wide screen)
16:9 aspect ratio is only sourced through the Component Video input 
when being fed an appropriate 16:9 aspect signal. See Connecting a 
Component Video source device on page 22 and Obtaining a 
preferred projected image size on page 15 for details.
H Position 
(0)
Adjusts the horizontal position 
of the projected image. 
V Position 
(0)
Adjusts the vertical position of 
the projected image. 
Phase 
(depends on 
the selected 
input 
source)This function allows you to adjust the clock phase 
to reduce image distortion.
H Size (0)Adjusts the horizontal width of the image.
Sharpness 
(15)Adjusts the image to make it look sharper or softer.
-30+30
-30+30 
						

							Operation 36
3. Setting menu 
FUNCTION 
(default setting 
/ value)
DESCRIPTION
Mute (off)Toggles projector audio between on and off.
Volume (5)Adjusts audio volume level.
OSD Time 
(10)Sets the length of time the OSD will remain active after your last button 
press. The range is from 5 to 100 seconds.
Quick 
Cooling (off)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.
Password 
(off)
This is a selectable function. Selecting On limits use of the projector to 
only those who know the correct password. When the function is activated 
for the first time, you have to set a password for it. For more information, 
refer to Utilizing the password function on page 25. Once the password 
is set and this function is selected, the projector is password-protected. 
Users who do not know the correct password can not use the projector.
WARNING: You will be inconvenienced if you activate the password 
functionality and subsequently forget the password.
Print out this manual (if necessary) and write the password you used 
in this manual, and keep the manual in a safe place for later recall.
The password can be entered by using either the buttons on the projector 
or the remote control.
The password will display on-screen when being input.
Change 
PasswordYou will be asked to enter the current password before changing to a new 
one. For more information, refer to Utilizing the password function on 
page 25.
Reset
Returns all settings to the factory preset values.
The following settings will still remain: Mirror, Language, Password, 
High Altitude Mode, Phase and H Position. 
						

							Operation 37
4. Advance menu
FUNCTION 
(default setting 
/ value)
DESCRIPTION
Mirror (Floor 
front)The projector can be installed on a ceiling or behind a screen, or with one 
or more mirrors. Contact your dealer for the ceiling mount bracket 
(optional accessory) if you need to install the projector on your ceiling. 
Refer to Choosing a location on page 13 for more information.
Blank Time 
(20)Sets the image blank time when the Blank feature is activated, once 
elapsed the image will return to the screen.
Source Scan 
(on)Sets whether the projector searches automatically for input signals. If the 
source scan is On, the projector will scan for input signals until it acquires 
a signal. If the function is not activated, the projector selects the last used 
input signal. The default value is `RGB.
Language 
(English)Language sets the language for the OSD control menus.
Use Left 3/ Right 4on the projector or Left 3/ Right 4on the remote 
control to select your desired language. 
Splash 
Screen 
(BenQ logo)Allows you to select which logo screen will display during projector start-
up. Three modes are available: Default (BenQ logo), black screen or blue 
screen. 
						

							Operation 38
High Altitude 
Mode (off)
A mode for operation in areas like high altitude or high temperature. We 
recommend you use the High Altitude Mode when your environment is 
higher than 3000 feet above sea level, or is hotter than 40
°C, or whenever 
the projector will be used for extended periods of time (>10 hours) 
without shutdown.
To activate the High Altitude Mode, select On by pressing Left 3/ Right 
4on the projector or remote control. A confirmation message displays. 
Press Auto.
Next time you turn on the projector, it will show a message pictured below 
as a reminder during the start-up.
Operation under High Altitude Mode may cause a higher decibel 
operating noise level because of increased fan speed necessary to improve 
overall system cooling and performance.
If you use this projector under other extreme conditions excluding the 
above, it may display auto shut-down symptoms, which is designed to 
protect your projector from over-heating. In cases like this, you should 
switch to High Altitude mode to solve these symptoms. However, this is 
not to state that this projector can operate under any and all harsh or 
extreme conditions.
Auto Off (off)
This function allows the projector to turn off automatically if no input 
signal is detected after a set period of time. Press Left 3/ Right 4on the 
projector or remote control to set the duration before the projector is 
turned off. Selecting Off disables this function.
Economic 
Mode (off)
Use this mode to reduce system noise and reduce power consumption by 
20%. If this mode is activated, the light output will be reduced and result 
in darker projected images.
Setting the projector in Economic mode extends the lamp timer 
automatic shutdown feature. For more information on how the total 
lamp hour is calculated, see Calculation of lamp hour on page 43.
We recommend you use the High Altitude Mode by selecting On 
when your environment is higher than 3000 feet, or is hotter than 40°C.
Do you want to turn on High Altitude Mode?
Yes  Auto       No 5
Current Status
High Altitude Mode     On
This mode is used for protecting projector from extreme environment and may cause high 
fan speed. 
						

							Operation 39
5. 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
SourceShows the current signal source.
ResolutionShows the native resolution of the input signal.
Application 
ModeShows the selected mode in the   Picture menu.
Equivalent 
Lamp HourDisplays the number of hours the lamp has been used.
SystemShows the Video input system format, NTSC, SECAM or PAL. 
						

							Maintenance 40
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 Shutdown on page 30 and unplug the power cord.
• To remove dirt or dust, wipe the case with the supplied cleaning 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 51 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.
Cleaning and replacing the dust filter
It is necessary to clean the dust filter periodically. If the filter is not cleaned, it can become 
clogged with dust and prevent proper ventilation. This can cause overheating and a 
malfunction of the projector. 
						

							Maintenance 41 A warning message like the one pictured to 
the right will be displayed for 10 seconds 
every 500 hours to remind you to clean the 
filter. To leave the message, press the Exit 
button on the projector or remote control.
To clean the filter:
1. Turn the projector off and wait until the fans stop running.
2. Disconnect the projector from any cables.
3. Locate the filter case on the back of the 
projector.
4. Release the filter case from the projector by 
pressing the filter case into the slot slightly. The filter case 
springs out of the slot. 
5. Pull out the filter case.
6. Use a small vacuum cleaner designed for 
computers and other office equipment to clean the 
filter sponge. Or use a soft brush (such as a clean 
artist’s paintbrush) to gently sweep the dust on the 
filter away.
If the dirt is difficult to remove or the filter is 
broken, replace it with the supplied spare filter 
sponge. See How to replace the filter sponge: 
below.
Please check if the filter is clean
Clean the filter or replace with a new one
Press “Exit” to leave
filter case 
						

							Maintenance 427. Refit the filter case by aligning and inserting it into 
the projector slot.
8. Press the case back until it clicks into place.
9. Turn the projector back on.
If the case is not correctly seated in place, the 
projector will display an on-screen message as 
pictured to the right every three minutes.
The message will display 3 times for a 10-second 
duration each, if no further action is taken.
Then a second message as pictured below displays to warn of shutdown in 1 minute.
You can re-attach the case correctly anytime before the projector shuts down. (That 
means you have 10-11 minutes to get the re-attachment done from the time the first 
warning message was displayed.) The projector will return to normal operation.
How to replace the filter sponge:
If you find the dirt is hard to remove from the filter sponge or the sponge is broken, replace 
it. 
1. Carefully peel the filter sponge away from the filter case. 
See that there are small plastic pins along the edges to 
position and retain the sponge into place. Lift the sponge 
up off these pins taking care to prevent them from 
breaking off.
2. Attach the supplied new filter sponge to the filter case. 
Make sure that the tiny holes securely fit onto the case’s 
pins.
Please check
Filter not well attached
Please re-attach the filter cap
Otherwise, Power is going to shut down in 1 minute
Plastic pins 
						

							Maintenance 43
Lamp information
Calculation of 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 = 3/4 (hours used in Economic mode) + 1 (hours used in 
normal mode)
See Economic Mode (off ) on page 38 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.
Warning message
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.
For more detailed information on projector warnings, please refer to Indicators on page 
47.
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.
The following Lamp warning displays will remind you to change the lamp.
MessageStatus
The lamp has been in operation for 2800 hours. 
Install a new lamp for optimal performance. If the 
projector is normally run with Economic Mode 
selected (See Economic Mode (off ) on page 38), 
you may continue to operate the projector until the 
2950 hour lamp warning appears.
The lamp has been in operation for 2950 hours. A 
new lamp should be fitted to avoid the 
inconvenience of shutdown when the projector runs 
out of lamp time.
The lamp has been in operation for over 3000 hours. 
This message will flash in the center of the screen for 
about 30 seconds together with the Lamp indicator 
lighting up red for 40 seconds. 
It is strongly recommended that you replace the 
lamp at this age. The lamp is a consumable item. 
With the usage time increase, the lamp brightness 
diminished gradually. 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. 
						

							Maintenance 44
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.
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. If this warning message displays, the projector will 
shutdown in 40 seconds. The lamp MUST be 
replaced before the projector will operate normally.
2. Turn the projector over. Then loosen the screw 
on the lamp cover. 
3. Remove the lamp cover from the projector.
Do not turn the power on with the lamp cover removed.