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...

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...

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...

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...

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...

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...

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...

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. 
Downloaded From projector-manual.com BenQ...

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...

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....