BenQ Projector TH670 User Manual

Connection 21
Connecting Video source devices
You need only connect the projector to a Video source device using just one of the 
above connecting methods, however each provides a different level of video quality. 
The method you choose will most likely depend upon the availability of matching 
terminals on both the projector and the Video source device as described below:
Connecting an HDMI source device
The projector provides an HDMI input jack that allows you to connect it to an HDMI 
source device...

Connection 22
• In the unlikely event that you connect the projector to a DVD player via the 
projectors HDMI input and the projected picture displays wrong colors, please 
change the color space to YUV. 
Connecting a Component Video source device
Examine your Video source device to determine if it has a set of unused Component 
Video output jacks available: 
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to 
the device.
To connect...

Connection 23
Connecting a composite source device
Examine your Video source device to determine if it has an unused composite output 
jack available: 
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to 
the device.
To connect the projector to a Video source device:
1. Take a Video cable and connect one end to the Video output jack of the Video 
source device.
2. Connect the other end of the Video cable to the VIDEO jack on the...

Operation
24
Operation
Starting up the projector
1. Plug the power cord into the projector and 
into a power outlet. Check that the POWER 
indicator light on the projector lights 
orange after power has been applied.
• Please use the original accessories (e.g. power 
cable) only with the device to avoid possible 
dangers such as electric shock and fire.
• If Direct Power On function (in the Advanced 
menu > System Setup: Basic)* is activated, the projector will turn on 
automatically after the power cord...

Operation 25 7. The projector will start to search for input signals. The current input signal being 
scanned displays in the screen. If the projector doesnt detect a valid signal, the 
message No Signal will continue displaying until an input signal is found. 
You can also press SOURCE on the projector or remote control to select your 
desired input signal. See Switching input signal on page 33 for details.
• If no signal is detected for 3 minutes, the projector automatically enters ECO  
BLANK mode....

Operation
26
Auto-adjusting the image
In some cases, you may need to optimize the 
picture quality. To do this, press AUTO on 
the projector or remote control. Within 5 
seconds, the built-in Intelligent Auto 
Adjusent function will re-adjust the values of 
Frequency and Clock to provide the best 
picture quality.  
• The screen will display Auto adjusting 
while AUTO is functioning.
• This function is only available when PC signal (analog RGB) is selected.
Correcting keystone
Keystoning refers to the...

Operation 27
Fine-tuning the image size and clarity
1. Adjust the projected image to the size 
that you need using the zoom slide lever.
2. Then sharpen the image by using the focus 
ring. 

Operation
28
Using the menus
The projector is equipped with On-Screen Display (OSD) menus for making various 
adjusents and settings. There are two menu types for your selection. One is Basic, 
and the other is Advanced.
Below is the overview of the Basic menu -- without input signal.
The following example describes how to set the OSD menu in the Basic menu.
1. Press MENU to turn the OSD menu on.
2. Use  /// to select the desired item and press OK to confirm the 
selection.
3. Follow the on-screen...

Operation 29 Below is the overview of the Basic menu -- with input signal.
The following example describes how to set the OSD menu in the Basic menu.
1. Press MENU to turn the OSD menu on.
2. Use  /  to select the desired item and follow the on-screen instructions to 
select your settings.
3. Press MENU to leave and save the settings.
Menu item
Highlight 

Operation
30Below is the overview of the Advanced menu.
The following example describes how to set the OSD menu.
1. Press MENU to turn the OSD menu 
on.3. Press   to select 
Background Color and 
press  /  to select a 
background color.
2. Use  /  to select the System 
Setup: Basic menu.4. Press MENU to leave and 
save the settings.
Main menu icon
Main menu
Sub-menu
Highlight
(selected)
Press MENU 
to the 
previous page 
or to exit. Status
Current input signal