BenQ Projector TH670 User Manual

Operation 51
Description of each menu
• The default values listed in this manual, especially on pages 51-59, are for 
reference only. They may vary between the projectors due to the continuous 
improvement to the  products.
FUNCTIONDESCRIPTION
Wall Color 
CorrectionCorrects the projected picture’s color when the projection 
surface is not white. See Using Wall Color Correction on page 
37 for details.
Projector 
PositionThe projector can be installed on a ceiling or behind a screen, or 
with one or more...

Operation
52
FUNCTIONDESCRIPTION
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 36 for details.
Vo l u m eSee Adjusting the sound on page 43 for details.
MuteSee Muting the sound on page 43 for details.
3D ModeThis 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...

Operation 53
FUNCTIONDESCRIPTION
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 36 for details.
User Mode 
ManagementSelects 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 36 for details.
This function is only available when User 1 or User 2...

Operation
54
FUNCTIONDESCRIPTION
MuteSee Muting the sound on page 43 for details.
Vo l u m eSee Adjusting the sound on page 43 for details.
Microphone 
Vo l u m eSee Adjusting the sound on page 43 for details.
Pow e r  O n / O f f  
Ring ToneSee Adjusting the microphone’s sound level on page 43 for 
details.
Reset Audio 
SettingsReturns Audio Setup menu to the factory preset values.
Advanced menu: Audio Setup 

Operation 55
FUNCTIONDESCRIPTION
Aspect RatioThere are four options to set the images aspect ratio depending 
on your input signal source. See Selecting the aspect ratio on 
page 34 for details.
Wall Color 
CorrectionCorrects the projected picture’s color when the projection 
surface is not white. See Using Wall Color Correction on page 
37 for details.
Image PositionDisplays the position adjusent page. To move the projected 
image, use the directional arrow keys. The values shown on the 
lower position...

Operation
56
FUNCTIONDESCRIPTION
LanguageSets the language for the On-Screen Display (OSD) menus.
Background 
ColorAllows you to select which background color will display when 
no signal is input into the projector. Four options are available:  
Black, Blue, or Purple.
Splash ScreenAllows you to select which logo screen will display during 
projector start-up. Four options are available: BenQ logo, Black, 
or Blue.
Projector 
Po s i t i o nThe projector can be installed on a ceiling or behind a screen,...

Operation 57
FUNCTIONDESCRIPTION
Lamp SettingsReset Lamp Timer
See Resetting the lamp timer on page 63 for details.
Lamp Timer
See Getting to know the lamp hour on page 59 for details on how 
the total lamp hour is calculated.
HDMI FormatSelects appropriate HDMI format automatically or manually.
Baud RateSelects a baud rate that is identical with your computer’s so that 
ou can connect the projector using a suitable RS-232 cable. This 
function is intended for qualified service personnel.
Test...

Operation
58
FUNCTIONDESCRIPTION
Quick CoolingSelecting On enables the function and the projector cooling time 
will be shortened to a few seconds.
If you attempt to restart the projector right after the 
quick cooling process, it may not be turned on 
successfully and will rerun its cooling fans.
High Altitude 
ModeA mode for operation in high altitude areas. See Operating in a 
high altitude environment on page 42 for details.
PasswordChange Password
You will be asked to enter the current password...

Operation 59
FUNCTIONDESCRIPTION
SourceShows the current signal source.
Picture ModeShows the selected mode in the Picture menu.
ResolutionShows the native resolution of the input signal.
Color SystemShows input system format, NTSC, PAL, SECAM, or RGB.
Lamp Usage 
TimeDisplays the number of hours the lamp has been used.
3D FormatShows the current 3D mode.
Firmware 
Ve r s i o nShows firmware version.
Advanced menu: Information 

Maintenance
60
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. 
• 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...