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BenQ Mh680 Users Manual

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Page 31

Operation 31 4. Press  to highlight Timer Position and set the timer position by pressing  /
.
5. Press   to highlight Timer Counting Direction and select your desired counting 
direction by pressing  / .
6. Press  to highlight Sound Reminder and decide if you want to activate sound 
reminder by pressing  / . If you select On, a double beep sound will be heard at 
the last 30 seconds of counting down/up, and a triple beep sound will be produced 
when the timer is up.
7. To activate the presentation...

Page 32

Operation 32
Hiding the image
In order to draw the audiences full attention to the presenter, you can use ECO BLANK 
on the projector or remote control to hide the screen image. When this function is 
activated with an audio input connected, the audio can still be heard. 
You can set the blank time in the 
SYSTEM SETUP: Basic > Operation Settings > 
Blank Timer menu to let the projector return the image automatically after a period of 
time when there is no action taken on the blank screen.
If the preset...

Page 33

Operation 33 symptoms. However, this is not to state that this projector can operate under any and all 
harsh or extreme conditions.
Adjusting the sound
The sound adjustments made as below will have an effect on the projector speaker(s). Be 
sure you have made a correct connection to the projector audio input. See Connection 
on page 16 for how the audio input is connected.
Muting the sound
To temporarily turn off the sound:
1. Press MENU/EXIT and then press  /  until the SYSTEM SETUP: Advanced 
menu is...

Page 34

Operation 34
Using the teaching templates
The projector provides several preset patterns for various teaching purposes. To activate 
the pattern:
1. Open the OSD menu and go to the DISPLAY > Teaching Template and press 
/   to select Blackboard or Whiteboard.
2. Press /  to choose the pattern you need. 
3. Press MODE/ENTER to activate the pattern.
Teaching 
TemplateWhiteboardBlackboard
Letter 
Formation
Worksheet
Coordinate 
Chart
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Page 35

Operation 35
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.
Supported image formats:
•  A square box will display on the filename for unidentified characters.
•  Thai filename is not supported.
•  Files in GIF, TIFF, PNG and BMP formats can be displayed for the file size smaller than WXGA (1280 x 
800) only.
•  If a folder consists of more than 200 photos, only the first...

Page 36

Operation 36
Shutting down the projector
1. Press  POWER and a confirmation message will display prompting you. 
If you dont respond in a few seconds, the message will disappear.
2. Press  POWER a second time. The POWER indicator light flashes orange, 
the projection lamp shuts down, and the fans will continue to run for approximately 
90 seconds to cool down the projector.
To protect the lamp, the projector will not respond to any commands during the cooling process.
To shorten the cooling time, you can...

Page 37

Operation 37
Menu operation
Menu system
Please note that the on-screen display (OSD) menus vary according to the signal type 
selected and the projector model you are using.
Main menu Sub-menu Options
1. 
DISPLAY
Wall ColorOff/Light Yellow/Pink/Light Green/Blue/
Blackboard
Aspect RatioAuto/Real/4:3/16:9/16:10
Keystone
Position
Phase
H. Size
Digital Zoom
3D3D ModeAuto/Top Bottom/Frame Sequential/
Frame Packing/Side by Side/Off
3D Sync InvertDisable/Invert
Apply 3D 
Settings3D Settings 1/3D Settings 2/3D...

Page 38

Operation 38
Main menu Sub-menu Options
4. 
SYSTEM 
SETUP: 
Basic
Presentation 
TimerTimer Period1~240 minutes
Timer DisplayAlways/3 min/2 min/1 min/Never
Timer PositionTop-Left/Bottom-Left/Top-Right/
Bottom-Right
Timer Counting 
DirectionCount Down/Count Up
Sound ReminderOn/Off
On/Off
Language
Projector InstallationFront Table/Rear Table/Rear 
Ceiling/Front Ceiling
Menu SettingsMenu Display 
Time5 sec/10 sec/20 sec/30 sec/Always
Menu PositionCenter/Top-Left/Top-Right/Bottom-
Right/Bottom-Left
Reminder...

Page 39

Operation 39 Note that the menu items are available when the projector detects at least one valid signal. 
If there is no equipment connected to the projector or no signal detected, limited menu 
items are accessible.
Main menu Sub-menu Options
5. 
SYSTEM 
SETUP: 
Advanced
High Altitude ModeOn/Off
Audio SettingsMuteOn/Off
Volume
Power On/Off 
Ring ToneOn/Off
Lamp SettingsLamp ModeNormal/Economic/SmartEco
Reset Lamp Timer
Equivalent Lamp
Security 
SettingsChange Password
Change Security 
SettingsPower On...

Page 40

Operation 40
Description of each menu
Function Description
Wall ColorCorrects the projected picture’s color when the projection surface is 
not white. See Using Wall Color on page 27 for details.
Aspect RatioThere are several options to set the images aspect ratio depending on 
your input signal source. See Selecting the aspect ratio on page 25 
for details.
KeystoneCorrects any keystoning of the image. See Correcting keystone on 
page 20 for details.
Position
Displays the position adjustment page. To...
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