BenQ Mw665 Users Manual

							Operation 51
 
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 PatternSee Using the test pattern on page 38 for details.
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 area).
Standby 
Settings
Network
• Enable Network Standby Mode
Selecting On enables the function. The projector is able to provide 
the network function in standby mode. Selecting Off disables the 
function. The projector does not provide the network function in 
standby mode.
• Auto Disable Network Standby Mode
Allows the projector to disable the network function after a set 
period of time after it enters standby mode. For instance, if 20 min 
is selected, the projector is able to provide the network function 
for 20 minutes after it enters standby mode. When 20 minutes is 
up, the projector enters normal standby mode.
This function is only available when Enable Network Standby Mode is 
On.
Monitor Out
Selecting On enables the function. The projector can output a VGA 
signal when it is in standby mode and the COMPUTER 1 jack is 
correctly connected to devices. See Connection on page 19 for how 
to make the connection.
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 19 
for how to make the connection.
Enabling this function slightly increases the standby power consumption.
MHL Charging (MX666+)
Selecting On enables the function. The projector will automatically 
charge the connected MHL compatible smart device as long as the 
power is fed to the projector.
5. SYSTEM SETUP: Advanced menu
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							Operation 52
Function Description
Network 
SettingsSee BenQ Network Projector Operation Guide 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, Color Space Conversion, Projector Installation, High 
Altitude Mode, Security Settings, Baud Rate and Network Settings. 
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.
Equivalent Lamp Hour
Displays the number of hours the lamp has been used.
Firmware Version
Shows the firmware version of your projector.
USB 
READER 
(available 
only when a 
USB flash 
drive is 
detected)
See Presenting from a USB Reader on page 40 for details.
5. SYSTEM SETUP: 
Advanced menu
6. INFORMATION menu
7. USB READER menu
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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 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 and let it cool down completely before cleaning the lens.
•  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, alkaline/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.
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 41 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 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.
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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. 
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 Hour information displaying on the menu.
4. 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 the Lamp Mode
Setting the projector in Economic, SmartEco, LampSave or LumenCare mode 
extends the lamp operation life. To set Economic, SmartEco, LampSave or 
LumenCare 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 signal 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  / . 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.
Lamp modeDescription
NormalProvides full lamp brightness
EconomicLowers brightness to extend the lamp life and decreases the fan 
noise
SmartEcoAdjusts the lamp power automatically depending on the content 
brightness level
LampSaveAdjusts the lamp power automatically and lowers the brightness to 
extend the lamp life
LumenCareKeeps the image brightness constant without losing too much 
brightness after long-term usage
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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. 
Go to http://www.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. 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.
The 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 (See Getting to know the lamp hour on 
page 54), you may continue to operate the 
projector until the next hour lamp warning 
appears.
Press MODE/ENTER to dismiss the message.
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.
Press MODE/ENTER to dismiss the message.
The lamp MUST be replaced before the projector 
will operate normally.
Press MODE/ENTER to dismiss the message.
OK Order a replacement lamp
Lamp>XXXX Hours
Order a new lamp at www.BenQ.com
Notice
OK Replace lamp soon
Lamp>XXXX Hours
Order a new lamp at www.BenQ.com
Notice
OK Replace lamp now
Lamp>XXXX Hours
Order a new lamp at www.BenQ.com
Notice
OK Out of lamp usage time
Replace lamp (Refer to user manual)
then reset lamp timer
Order a new lamp at www.BenQ.com
WARNING
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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 qualified 
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.
•  Ensure good ventilation when handling broken lamps. We recommend that you use respirators, safety 
glasses, 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 that secures the lamp 
cover on the side of the projector 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.
5. Lift the handle so that it stands up.
2
1
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							Maintenance 57 12. Connect the power and restart the projector.
Do not turn the power on with the lamp cover removed. 
6. 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.
7. As shown in the figure, lower the new lamp.
8. Tighten the screw that secures the lamp.
9. Ensure the handle is fully laid flat and locked 
in place.
•  Loose screw may cause a bad connection, which could 
result in malfunction.
•  Do not over tighten the screw.
10. Replace the lamp cover on the projector.
11. Tighten the screw that secures the lamp 
cover. 
•  Loose screw may cause a bad connection, which could 
result in malfunction.
•  Do not over tighten the screw.
1
2
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							Maintenance 58
Resetting the lamp timer
13. 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 displays. Highlight Reset Lamp Timer. A warning 
message displays 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 reset if the lamp is not new or replaced as this could cause damage. 
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							Maintenance 59
Indicators
LightStatus & Description
Pow e r  ev e n t s
Orange Off OffStand-by mode
Green 
FlashingOff OffPowering up
Green Off OffNormal operation
Orange
FlashingOff OffNormal power-down cooling
Red Off OffDownload
Green Off RedCW start fail
Red Flashing Off OffScaler shutdown fail (data abort)
Red Off RedScaler reset fail (video projector only)
Lamp events
Off Off RedLamp1 error in normal operation
Off OffOrange 
FlashingLamp is not lit up
Thermal events
Red Red OffFan 1 error (the actual fan speed is outside the 
desired speed)
Red Red Flashing OffFan 2 error (the actual fan speed is outside the 
desired speed)
Red Green OffFan 3 error (the actual fan speed is outside the 
desired speed)
RedGreen 
FlashingOffFan 4 error (the actual fan speed is outside the 
desired speed)
Green Red OffTemperature 1 error (over limited temperature)
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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 cord.Plug the power cord into the AC power jack 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 signal 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 projector if necessary.
The lens cover is still closed. Open the lens cover.
CauseRemedy
The battery is out of power. Replace the battery 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 
procedure on page 27 for details.
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