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BenQ Mh680 Users Manual

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    							Operation 41
    Function Description
    3D
    This projector features a 3D function which enables you to enjoy the 
    3D movies, videos, and sporting events in a more realistic way by 
    presenting the depth of the images. You need to wear a pair of 3D 
    glasses to view the 3D images.
    3D Mode
    The default setting is Auto and the projector automatically chooses 
    an appropriate 3D format when detecting 3D contents. If the 
    projector cannot recognize the 3D format, press  /  to choose a 
    3D mode. 
    When the 3D function is on:
    • The brightness level of the projected image will decrease.
    •  The Picture Mode cannot be adjusted.
    3D Sync Invert
    When you discover the inversion of the image depth, enable this 
    function to correct the problem.
    Apply 3D Settings
    After the 3D settings are saved, you can decide if you would like to 
    apply them by choosing a set of 3D settings that you have saved. Once 
    applied, the projector will automatically play the incoming 3D content 
    if it matches the 3D settings saved.
    Only the set(s) of 3D settings with memorized data is available.
    Save 3D Settings
    When you have successfully displayed the 3D content after making the 
    appropriate adjustments, you can enable this function and choose a set 
    of 3D settings to memorize current 3D settings.
    Teaching 
    Template See Using the teaching templates on page 34 for details.
    1. DISPLAY menu
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    							Operation 42
    Function Description
    Picture ModePre-defined picture modes are provided so you can optimize your 
    projector image set-up to suit your program type. See Selecting a 
    picture mode on page 27 for details.
    Reference 
    ModeSelects a picture mode that best suits your need for the image quality 
    and further fine-tune the image based on the selections listed on the 
    same page below. See Setting the User 1/User 2 mode on page 27 
    for details.
    BrightnessAdjusts the brightness of the image. See Adjusting Brightness on 
    page 28 for details.
    ContrastAdjusts the degree of difference between dark and light in the image. 
    See Adjusting Contrast on page 28 for details.
    Color
    Adjusts the color saturation level -- the amount of each color in a 
    video image. See Adjusting Color on page 28 for details.
    This function is only available when a Video, S-Video or Component Video 
    signal is selected.
    Tint
    Adjusts the red and green color tones of the image. See Adjusting 
    Tint on page 28 for details.
    This function is only available when a Video or S-Video signal is selected and 
    the system format is NTSC.
    Sharpness
    Adjusts the image to make it look sharper or softer. See Adjusting 
    Sharpness on page 28 for details.
    This function is only available when a Video, S-Video or Component Video 
    signal is selected.
    Brilliant ColorSee Adjusting Brilliant Color on page 28 for details.
    Color 
    TemperatureSee Selecting a Color Temperature on page 28 for details.
    Color 
    Temperature 
    Fine Tuning
    See Setting a preferred color temperature on page 29 for details.
    3D Color 
    ManagementSee 3D Color Management on page 29 for details.
    Reset Picture 
    SettingSee Resetting current or all picture modes on page 30 for details.
    2. PICTURE menu
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    							Operation 43
    Function Description
    Quick Auto 
    SearchSee Switching input signal on page 24 for details.
    Color Space 
    ConversionSee Changing Color Space on page 25 for details.
    Presentation 
    TimerReminds the presenter to finish the presentation within a certain time 
    frame. See Setting the presentation timer on page 30 for details.
    LanguageSets the language for the On-Screen Display (OSD) menus. See Using 
    the menus on page 21 for details.
    Projector 
    InstallationThe projector can be installed on a ceiling or behind a screen, or with 
    one or more mirrors. See Choosing a location on page 13 for details.
    Menu 
    Settings
    Menu Display Time
    Sets the length of time the OSD will remain active after your last key 
    press.
    Menu Position
    Sets the On-Screen Display (OSD) menu position.
    Reminder Message
    Sets the reminder messages on or off.
    3. SOURCE 
    4. SYSTEM SETUP: Basic menu
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    							Operation 44
    Function Description
    Operation 
    Settings
    Direct Power On
    Allows the projector to turn on automatically once the power is fed 
    through the power cord.
    Signal Power On
    Sets whether to turn the projector directly on without pressing 
    POWER or ON when the projector is in standby mode and the signal 
    is feed through the VGA cable.
    Auto Power Off
    Allows the projector to turn off automatically if no input signal is 
    detected after a set period of time. See Setting Auto Power Off on 
    page 48 for details.
    Quick Cooling
    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 15 seconds.
    This function is only available when Instant Restart is off.
    Instant Restart
    Selecting On enables you to restart the projector immediately within 
    90 seconds after turning it off.
    Blank Timer
    Sets the image blank time when the Blank feature is activated, once 
    elapsed the image will return to the screen. See Hiding the image on 
    page 32 for details.
    Sleep Timer
    Sets the auto-shutdown timer. 
    Remote 
    ReceiverAllows you to enable all the remote receivers or one specific remote 
    receiver on the projector.
    Panel Key 
    LockDisables or enables all panel key functions except   POWER on the 
    projector and keys on the remote control. See Locking control keys 
    on page 32 for details.
    Background 
    ColorSets the background color for the projector.
    Splash 
    ScreenAllows you to select which logo screen will display during projector 
    start-up. 
    4. SYSTEM SETUP: Basic menu
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    							Operation 45
    Function Description
    High 
    Altitude 
    ModeA mode for operation in high altitude areas. See Operating in a high 
    altitude environment on page 32 for details.
    Audio 
    SettingsSee Adjusting the sound on page 33 for details.
    Lamp 
    Settings
    Lamp Mode
    See Setting the Lamp Mode on page 48 for details.
    Reset Lamp Timer
    See Resetting the lamp timer on page 51 for details.
    Equivalent Lamp
    See Getting to know the lamp hour on page 48 for details on how the 
    total lamp hour is calculated.
    Security 
    Settings
    Change Password
    Change Security Settings
    Power On Lock
    See Utilizing the password function on page 22 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 and update or 
    download the projector’s firmware. This function is intended for 
    qualified service personnel.
    Test PatternSee Using the test pattern on page 33 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).
    5. SYSTEM SETUP: Advanced menu
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    							Operation 46
     
    Function Description
    Standby 
    Settings
    Network
    Selecting On enables the function. The projector is able to provide the 
    network function when it is 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 jack is 
    correctly connected to devices. See Connection on page 16 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 16 
    for how to make the connection.
    Enabling this function slightly increases the standby power consumption.
    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: Phase, H. Size, Projector 
    Installation, Color Space Conversion, High Altitude Mode, Security 
    Settings and Baud Rate. 
    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
    Displays the number of hours the lamp has been used.
    Firmware Version
    Shows the firmware version of your projector.
    5. SYSTEM SETUP: Advanced menu
    6. INFORMATION menu
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    							Maintenance 47
    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 36 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 55 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 48
    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 appears.
    3. You will see the Equivalent Lamp 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 or SmartEco mode extends the lamp operation life. 
    To  s e t  Economic or SmartEco 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
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    							Maintenance 49
    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://lamp.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 53 for details.
    The following Lamp warning displays will remind you to change 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 (See Getting to know the lamp hour on 
    page 48), 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 Replacement Lamp
    Lamp>XXXX Hours
    Order a new lamp at lamp.benq.com
    Notice
    OK Replace Lamp Soon
    Lamp>XXXX Hours
    Order a new lamp at lamp.benq.com
    Notice
    OK Replace Lamp Now
    Lamp>XXXX Hours
    Lamp usage time exceeded
    Order a new lamp at lamp.benq.com
    Notice
    OK Out of Lamp Usage Time
    Replace lamp (Refer to user manual)
    Then reset lamp timer
    Order a new lamp at lamp.benq.com
    WARNING
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    							Maintenance 50
    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
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