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BenQ Mh680 Users Manual

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    							MH680/TH680
    Digital Projector
    User Manual
    Downloaded From projector-manual.com BenQ Manuals 
    						
    							Table of contents 2
    Ta b l e  o f  c o n t e n t s
    Important safety 
    instructions ........................... 3
    Introduction .......................... 7
    Projector features ..................................... 7
    Shipping contents ...................................... 8
    Projector exterior view........................... 9
    Controls and functions ..........................10
    Positioning your 
    projector.............................. 13
    Choosing a location ................................13
    Obtaining a preferred projected image 
    size ..............................................................14
    Connection ......................... 16
    Connecting video source devices........17
    Operation ............................ 18
    Starting up the projector ......................18
    Adjusting the projected image .............19
    Using the menus ......................................21
    Securing the projector ...........................22
    Switching input signal .............................24
    Magnifying and searching for details ...25
    Selecting the aspect ratio ......................25
    Optimizing the image .............................27
    Setting the presentation timer .............30
    Remote paging operations ....................31
    Freezing the image ..................................31
    Hiding the image......................................32
    Locking control keys ..............................32
    Operating in a high altitude 
    environment .............................................32
    Adjusting the sound ................................33
    Using the test pattern ............................33Using the teaching templates ............... 34
    Presenting from a USB Reader............ 35
    Shutting down the projector ............... 36
    Direct power off ..................................... 36
    Menu operation ...................................... 37
    Maintenance ........................ 47
    Care of the projector ............................ 47
    Lamp information ................................... 48
    Troubleshooting ................ 54
    Specifications ...................... 55
    Projector specifications ......................... 55
    Dimensions .............................................. 56
    Ceiling mount installation ..................... 56
    Timing chart ............................................. 57
    Warranty and Copyright 
    information ......................... 61
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    							Important safety instructions 3
    Important safety instructions
    Your projector is designed and tested to meet the latest standards for safety of information 
    technology equipment. However, to ensure safe use of this product, it is important that 
    you follow the instructions mentioned in this manual and marked on the product. 
    Safety Instructions
    1.Please read this manual before 
    you operate your projector. Save 
    it for future reference. 
    2.Do not look straight at the 
    projector lens during operation. 
    The intense light beam may damage 
    your eyes. 
    3.Refer servicing to qualified 
    service personnel. 
    4.Always open the lens shutter (if 
    any) or remove the lens cap (if 
    any) when the projector lamp is 
    on. 5. In some countries, the line voltage is 
    NOT stable. This projector is 
    designed to operate safely within a 
    mains voltage between 100 to 240 
    volts AC, but could fail if power cuts 
    or surges of ±10 volts occur. In 
    areas where the mains voltage 
    may fluctuate or cut out, it is 
    recommended that you connect 
    your projector through a power 
    stabilizer, surge protector or 
    uninterruptible power supply 
    (UPS). 
    6. Do not block the projection lens with 
    any objects when the projector is 
    under operation as this could cause 
    the objects to become heated and 
    deformed or even cause a fire. To 
    temporarily turn off the lamp, press 
    ECO BLANK on the projector or 
    remote control.
    Downloaded From projector-manual.com BenQ Manuals 
    						
    							Important safety instructions 4
      
    Safety Instructions (Continued)
    7. The lamp becomes extremely hot 
    during operation. Allow the projector 
    to cool for approximately 45 minutes 
    prior to removing the lamp assembly 
    for replacement. 
    8. Do not operate lamps beyond the 
    rated lamp life. Excessive operation of 
    lamps beyond the rated life could 
    cause them to break on rare 
    occasions. 
    9. Never replace the lamp assembly or 
    any electronic components unless the 
    projector is unplugged. 10. Do not place this product on an 
    unstable cart, stand, or table. The 
    product may fall, sustaining serious 
    damage. 
    11. Do not attempt to disassemble this 
    projector. There are dangerous high 
    voltages inside which may cause death 
    if you should come into contact with 
    live parts. The only user serviceable 
    part is the lamp which has its own 
    removable cover.
    Under no circumstances should you 
    ever undo or remove any other 
    covers. Refer servicing only to 
    suitably qualified professional service 
    personnel.
    12. When the projector is under 
    operation, you may sense some 
    heated air and odor from its 
    ventilation grill. It is a normal 
    phenomenon and not a product 
    defect.
    Downloaded From projector-manual.com BenQ Manuals 
    						
    							Important safety instructions 5
        
    Safety Instructions (Continued)
    13. Do not place this projector in any of 
    the following environments.
    - Space that is poorly ventilated or 
    confined. Allow at least 50 cm 
    clearance from walls and free flow of air 
    around the projector. 
    - Locations where temperatures may 
    become excessively high, such as the 
    inside of a car with all windows rolled 
    up.
    - Locations where excessive humidity, 
    dust, or cigarette smoke may 
    contaminate optical components, 
    shorten the projectors life span and 
    darken the image.
    - Locations near fire alarms
    - Locations with an ambient temperature 
    above 40°C / 104°F
    - Locations where the altitudes are higher 
    than 3000 m (10000 feet).
    14. Do not block the ventilation holes.
    - Do not place this projector on a 
    blanket, bedding or any other soft 
    surface.
    - Do not cover this projector with a cloth 
    or any other item.
    - Do not place inflammables near the 
    projector. 
    If the ventilation holes are seriously 
    obstructed, overheating inside the 
    projector may result in a fire.
    15. Always place the projector on a level, 
    horizontal surface during operation.
    - Do not use if tilted at an angle of more 
    than 10 degrees left to right, nor at 
    angle of more than 15 degrees front to 
    back. Using the projector when it is not 
    fully horizontal may cause a malfunction 
    of, or damage to, the lamp. 
    16. Do not stand the projector on end 
    vertically. Doing so may cause the 
    projector to fall over, causing injury or 
    resulting in damage to the projector.
    3000 m
    (10000 feet)
    0 m
    (0 feet)
    Downloaded From projector-manual.com BenQ Manuals 
    						
    							Important safety instructions 6
    Safety Instructions (Continued)
    17. Do not step on the projector or place 
    any objects upon it. Besides probable 
    physical damage to the projector, doing 
    so may result in accidents and possible 
    injury.
    18. Do not place liquids near or on the 
    projector. Liquids spilled into the 
    projector may cause it to fail. If the 
    projector does become wet, 
    disconnect it from the power supplys 
    power outlet and call BenQ to have 
    the projector serviced.
    19. This product is capable of displaying 
    inverted images for ceiling mount 
    installation.
    Use only BenQs Ceiling Mount Kit for 
    mounting the projector and ensure it is 
    securely installed.
    20. This apparatus must be earthed.
    Ceiling mounting the projector
    We want you to have a pleasant 
    experience using your BenQ projector, 
    so we need to bring this safety matter 
    to your attention to prevent possible 
    damage to person and property.
    If you intend to mount your projector 
    on the ceiling, we strongly recommend 
    that you use a proper fitting BenQ 
    projector ceiling mount kit and that 
    you ensure it is securely and safely 
    installed.
    If you use a non-BenQ brand projector 
    ceiling mount kit, there is a safety risk 
    that the projector may fall from the 
    ceiling due to an improper attachment 
    through the use of the wrong gauge or 
    length screws.
    You can purchase a BenQ projector 
    ceiling mount kit from the place you 
    purchased your BenQ projector. BenQ 
    recommends that you also purchase a 
    separate Kensington lock compatible 
    security cable and attach it securely to 
    both the Kensington lock slot on the 
    projector and the base of the ceiling 
    mount bracket. This will perform the 
    secondary role of restraining the 
    projector should its attachment to the 
    mounting bracket become loose.
    Hg - Lamp contains mercury. Manage in 
    accordance with local disposal laws. See 
    www.lamprecycle.org.
    Downloaded From projector-manual.com BenQ Manuals 
    						
    							Introduction 7
    Introduction
    Projector features
    The projector offers the following features
    • Full HD compatible
    The projector is compatible with Standard Definition TV (SDTV) 480i, 480p, 576i, 576p 
    and High Definition TV (HDTV) 720p, 1080i and 1080p formats, with the 1080p format 
    providing a true 1:1 image reproduction.
    • SmartEco™ starts your dynamic power saving
    The SmartEco™ technology offers a new way of operating the projector lamp system 
    and saves lamp power depending on the content brightness level.
    • Longest lamp life with SmartEco™ technology
    The SmartEco™ technology lowers the power consumption and increases the lamp 
    life.
    • ECO BLANK saves the lamp power
    Pressing the ECO BLANK button to hide the image and immediately lower the lamp 
    power at the same time.
    • Less than 0.5W in standby condition
    Less than 0.5W power consumption under standby mode.
    •  Presenting from a USB Reader
    This feature displays a slide show of images stored on a USB flash drive connected to 
    the projector. It can eliminate the need for a computer source.
    • USB Display 
    This feature allows the projector to display contents from your computer by using a 
    single USB cable and without the need for any driver.
    •  Presenting from your mobile devices by Wireless Display
    This feature allows a PC-free presentation with the help of an optional wireless dongle 
    and the BenQ Qpresenter App. By selecting source Network Display in the OSD 
    menu, you can start your presentation with your mobile devices without any wired 
    connection!
    • Quick Cooling, Auto Power Off, Signal Power On, Direct Power On
    Quick Cooling function speeds up the cooling process when turning off the 
    projector. Auto Power Off function allows the projector to turn off automatically if 
    no input signal is detected after a set period of time. Signal Power On function turns 
    on your projector automatically once detecting the signal input and Direct Power 
    On boots up the projector automatically when the power is connected.
    • Instant Restart
    Selectable Instant Restart function enables you to restart the projector immediately 
    within 90 seconds after turning it off.
    • 3D Function supported
    Various 3D formats make the 3D function more flexible. By presenting the depth of the 
    images, you can wear BenQ 3D glasses to enjoy the 3D movies, videos and sporting 
    events in a more realistic way.
    •  The apparent brightness of the projected image will vary depending on the ambient lighting conditions, 
    selected input signal contrast/brightness settings, and is directly proportional to projection distance.
    •  The lamp brightness will decline over time and may vary within the lamp manufacturers specifications. This 
    is normal and expected behavior.
    Downloaded From projector-manual.com BenQ Manuals 
    						
    							Introduction 8
    Shipping contents
    Carefully unpack and verify that you have all of the items shown below. If any of these items 
    are missing, please contact your place of purchase.
    Standard accessories
    The supplied accessories will be suitable for your region, and may differ from those illustrated.
    *The warranty card is only supplied in some specific regions. Please consult your dealer for detailed 
    information.
    Optional accessories
    1. Spare lamp kit
    2. Ceiling mount kit
    3. Carry bagProjector Power cord VGA cable
    Quick start guide User manual CD Warranty card*
    Remote control with batteries
     
    Digital ProjectorQuick Start Guide
    Downloaded From projector-manual.com BenQ Manuals 
    						
    							Introduction 9
    Projector exterior view
    1. External control panel
    (See Controls and functions on page 10 
    for details.)
    2. Lamp cover
    3. Vent (heated air exhaust)
    4. Quick-release button
    5. Lens cap
    6. Focus and Zoom ring
    7. Vent (cool air intake)
    8. Speaker grill
    9. Front IR remote sensor
    10. Projection lens
    11. RS232 control port
    12. USB ports
    13. HDMI-input port
    14. RGB signal output jack
    15. RGB (PC)/Component Video (YPbPr/ 
    YCbCr) signal input jack
    16. S-Video input jack
    Video input jack
    17. Audio (L/R) input jacks
    18. Audio input jack
    19. Audio output jack
    20. Kensington anti-theft lock slot
    21. AC power jack
    22. Rear adjuster foot
    23. Ceiling mount holes
    5
    2
    1
    3
    48
    6
    7
    10
    9
    Front/upper side
    131112141516171819
    20
    22
    21
    23
    Rear/lower side
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    							Introduction 10
    Controls and functions
    Projector
    1. Focus ring
    Adjusts the focus of the projected image.
    2. Zoom ring
    Adjusts the size of the image.
    3. Top IR remote sensor
    4. MENU/EXIT
    Turns on the On-Screen Display (OSD) 
    menu. Goes back to previous OSD menu, 
    exits and saves menu settings.
    5. POWER
    Toggles the projector between standby 
    mode and on.
    6.  Left/
    Decreases the projector volume.
    7. MODE/ENTER
    Selects an available picture setup mode.
    Activates the selected On-Screen Display 
    (OSD) menu item.
    8. ECO BLANK
    Used to hide the screen picture.
    9. POWER indicator light
    Lights up or flashes when the projector is 
    under operation.
    10. TEMPerature warning light
    Lights up red if the projectors 
    temperature becomes too high.11. LAMP indicator light
    Indicates the status of the lamp. Lights up 
    or flashes when the lamp has developed a 
    problem.
    12. AUTO
    Automatically determines the best picture 
    timings for the displayed image.
    13. Keystone/Arrow keys ( / Up,  /
    Down)
    Manually corrects distorted images 
    resulting from an angled projection.
    14. Right/
    Increases the projector volume.
    When the On-Screen Display (OSD) 
    menu is activated, the #6, #13, and #14 
    keys are used as directional arrows to 
    select the desired menu items and to 
    make adjustments.
    15. SOURCE
    Displays the source selection bar.
    212
    5
    3
    6
    4
    78
    109
    13
    13
    15
    1211
    14
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