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 mirrors. See Choosing a location on page 15 
for details.
Test PatternnSelecting On enables the function and the projector displays the 
grid test pattern. It helps you adjust the image size and focus and 
check that the projected image is free from distortion.
Auto SourceSee Switching input signal on page 33 for details.
Menu TypeSelects a Basic or Advanced menu type.
HDMI Format
Selects an appropriate HDMI format automatically or manually.
Reset Lamp 
TimerSee Resetting the lamp timer on page 66 for details.
Reset All 
SettingsReturns all settings to the factory preset values.
The following settings will still remain: Rename User 
Mode, Language, Projector Position, Source Rename, 
Test Pattern, High Altitude Mode, Password and Key 
Lock.
InformationSource
Shows the current signal source.
Picture Mode
Shows the selected mode in the Picture menu.
Resolution
Shows the native resolution of the input signal.
Color System
Shows input system format, NTSC, PAL, SECAM, or RGB.
Lamp Usage Time
Displays the number of hours the lamp has been used.
3D Format
Shows the current 3D mode.
Firmware Version
Shows firmware version.
Basic menu (without signal) 
						

							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 to wear a 
pair of 3D glasses to view the 3D images. See 3D User Manual for 
details.
When the 3D Mode function is enabled:
•  The brightness level of the projected image will 
decrease.
• The Picture Mode cannot be adjusted.
3D Sync InvertWhen your 3D image is distorted, you can enable this function to 
switch between the image for the left eye and the right eye for 
the more comfortable 3D viewing experience. 
SettingsSee Basic menu (without signal) on page 51 for details.
Basic menu (with signal) 
						

							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 is 
selected.
BrightnessAdjusts the brightness of the image. See Adjusting Brightness 
on page 38 for details.
ContrastAdjusts the degree of difference between dark and light in the 
image. SeeAdjusting Contrast on page 38 for details.
ColorAdjusts the color saturation level -- the amount of each color in a 
video image. See Adjusting Color on page 38 for details.
TintAdjusts the red and green color tones of the image. See 
Adjusting Tint on page 38 for details.
SharpnessAdjusts the image to make it look sharper or softer. See 
Adjusting Sharpness on page 38 for details.
Color 
Te m p e r a t u r eSee Selecting a Color Temperature on page 39 for details.
Lamp PowerSee Setting Lamp Power on page 61 for details.
Advanced...Black Level
See Setting Black Level on page 39 for details.
Gamma Selection
See Selecting a Gamma Selection on page 39 for details.
Brilliant Color
See Adjusting Brilliant Color on page 39 for details.
Color Temperature Fine Tuning
See Setting a preferred color temperature on page 40 for details.
Color Management
See Color Management on page 40 for details.
Noise Reduction
See Reducing Noise Reduction on page 41 for details.
Film Mode
See Selecting a Film Mode on page 41 for details.
Reset Current 
Picture ModeSee Resetting current picture mode on page 37 for details.
Advanced menu: Picture 
						

							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 of the page change with every key press you made 
until they reach their maximum or minimum.
This function is only available when a PC signal (analog 
RGB) is selected.
Overscan 
AdjustmentRemoves the noise in a video image. Overscans the image to 
remove video encoding noise on the edge of video source.
PC & 
Component 
YPbPr TuningCorrects the display data frequency, phase, the position of the 
image and selects the preferred SOG level automatically or 
manually.
3D3D Mode
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. See 3D User Manual for 
details.
When the 3D Mode function is enabled:
•  The brightness level of the projected image will 
decrease.
• The Picture Mode cannot be adjusted.
3D Sync Invert
When your 3D image is distorted, you can enable this function to 
switch between the image for the left eye and the right eye for 
the more comfortable 3D viewing experience.
Advanced menu: Display 
						

							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, or 
with one or more mirrors. See Choosing a location on page 16 
for details.
Auto Power OffAllows 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 62 for details.
Direct Power 
OnSelecting On enables the function. See Starting up the 
projector on page 24 for details.
Menu SettingsMenu Type
Selects a preferred menu type.
Menu Position
Sets the On-Screen Display (OSD) menu position.
Menu Display Time
Sets the length of time the OSD will remain active after your last 
key press. The range is from 5 to 20 seconds in 5-second 
increments.
Blank Reminder Message
Sets whether to display the reminder message.
Source 
Rename
See Renaming user modes on page 37 for details.
Auto SourceSee Switching input signal on page 33 for details.
Advanced menu: System Setup: Basic 
						

							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 PatternSelecting On enables the function and the projector displays the 
grid test pattern. It helps you adjust the image size and focus and 
check that the projected image is free from distortion.
Closed CaptionClosed 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).
To achieve the best performance of the Closed Caption, 
set your screen aspect ratio to 4:3.
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). 
Advanced menu: System Setup: Advanced 
						

							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 before changing 
to a new one.
Power On Lock
See Securing the projector on page 31 for details.
Key LockDisables or enables all panel key functions except Power on the 
projector and keys on the remote control.
Reset All 
SettingsReturns all settings to the factory preset values.
The following settings will still remain: Rename User 
Mode, Language, Projector Position, Source Rename, 
Test Pattern, High Altitude Mode, Password and Key 
Lock.
Advanced menu: System Setup: Advanced 
						

							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 
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.
Never rub the lens with abrasive materials.
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 45 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 70 
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.