BenQ TH681+ User Manual Page 25
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Operation 25
Changing Color Space
In the unlikely event that you connect the projector to a DVD player via the projector’s
HDMI input and the projected picture displays wrong colors, please change the color
space to YUV.
To d o t h i s :
1. Press MENU/EXIT and then press / until the SOURCE menu is highlighted.
2. Press to highlight Color Space Conversion and press / to select a suitable
color space.
This function is only available when the HDMI-input port is in use.
Magnifying and searching for details
If you need to find the details on the projected picture, magnify the picture. Use the
direction arrow keys for navigating the picture.
• Using the remote control
1. Press Digital Zoom+/- to display the Zoom bar. Press Digital Zoom+ to magnify
the center of the picture. Press the key repeatedly until the picture size is suitable for
your need.
2. Use the directional arrows ( , , , ) on the projector or remote control to
navigate the picture.
3. To restore the picture to its original size, press AUTO. You can also press Digital
Zoom-. When the key is pressed again, the picture is further reduced until it is
restored to the original size.
• Using the OSD menu
1.
Press MENU/EXIT and then press / until the DISPLAY menu is highlighted.
2. Press to highlight Digital Zoom and press MODE/ENTER. The Zoom bar
appears.
3. Press repeatedly to magnify the picture to a desired size.
4. To navigate the picture, press MODE/ENTER to switch to the panning mode and
press the directional arrows ( , , , ) on the projector or remote control to
navigate the picture.
5. To reduce size of the picture, press MODE/ENTER to switch back to the zoom in/
out function, and press AUTO to restore the picture to its original size. You can
also press repeatedly until it is restored to the original size.
The picture can only be navigated after it is magnified. You can further magnify the picture while searching for
details.
Selecting the aspect ratio
The “aspect ratio” is the ratio of the image width to the image height. Most analog TV and
some computers are in 4:3 ratio, and digital TV and DVDs are usually in 16:9 ratio.
With the advent of digital signal processing, digital display devices like this projector can
dynamically stretch and scale the image output to a different aspect than that of the image
input signal.
To change the projected picture ratio (no matter what aspect the source is):
• Using the remote control
1. Press Aspect to show the current setting.
- TH681/TH681+ 1
- Digital Projector 1
- User Manual 1
- Ta b l e o f c o nte n t s 2
- Important safety instructions 3
- (10000 feet) 5
- (0 feet) 5
- Introduction 7
- Shipping contents 8
- Projector exterior view 9
- Controls and functions 10
- Remote control 11
- Positioning your projector 13
- Projection dimensions 14
- Connection 16
- Connecting audio 17
- Operation 18
- Adjusting the projected image 19
- Correcting keystone 20
- Using the menus 21
- Securing the projector 22
- If you forget the password 23
- Changing the password 23
- Switching input signal 24
- Selecting the aspect ratio 25
- About the aspect ratio 26
- Optimizing the image 27
- 3D Color Management 29
- Remote paging operations 31
- Freezing the image 31
- Hiding the image 32
- Locking control keys 32
- Adjusting the sound 33
- Using the test pattern 33
- Using the teaching templates 34
- Shutting down the projector 35
- Direct power off 35
- Menu operation 36
- Main menu Sub-menu Options 37
- Operation38 38
- Description of each menu 39
- Function Description 40
- Teaching 40
- Template 40
- 1. DISPLAY menu 40
- Settings and Baud Rate 45
- Maintenance 46
- Lamp information 47
- Timing of replacing the lamp 48
- Replacing the lamp 49
- Maintenance 51 51
- Indicators 52
- Troubleshooting 53
- Specifications 54
- Dimensions 55
- Ceiling mount installation 55
- Timing chart 56
- Specifications 57 57
- Specifications58 58
- Specifications 59 59
- Limited warranty 60
- Copyright 60
- Disclaimer 60
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