BenQ Interactive Flat Panel T420 Tl550 T650 User Manual

Setting up the display 21
Connecting the YPbPr component video input
1. Connect the VIDEO IN (COMPONENT) jacks on the display to the component 
output jacks on an A/V device (such as a VCR or DVD player) using a component 
video cable.
2. Connect the DVD player’s audio output jacks to the AUDIO IN (AUDIO2 or 
AUDIO3) jacks on the display using a suitable audio cable.
3. To view video image from this input, press the YPbPr button on the remote 
control.
The cables are not supplied and should be purchased...

Setting up the display 22
Connecting the AV and S-Video inputs
1. Connect the VIDEO IN (S-VIDEO) or VIDEO IN jack on the display to the output 
jack on an A/V device (such as a VCR) using an appropriate video cable.
2. Connect the VCR’s audio output jacks to the AUDIO IN (AUDIO2 or AUDIO3) 
jacks on the display using a suitable audio cable.
3. If a second display is used, connect the VIDEO-OUT jack on the first display to the 
VIDEO IN jack on the second display using an AV cable. This relays the input...

Setting up the display 23
Connecting external speakers
The built-in amplifier on the display allows you to output audio signals through external 
speakers. Connect external speakers to the SPEAKERS (R/L) jacks on the display.
You can use the remote control or the control panel on the display to adjust the volume.
External speakers 

Setting up the display 24
Connecting multiple displays
With the RS232C IN/OUT interfaces, you can connect multiple displays serially (daisy 
chain) to a computer for management. The number of displays you can connect serially 
depends on the resolution of the input signal you use.
This function requires an RS-232C port equipped computer with the display management 
software installed.
RS-232C cable
RS-232C cable
RS-232C cableComputer 

Setting up the display 25
Connecting the touch module
Connect the USB cable on the display to a computer.
The touch module supports easy Plug-and-Play operations. There is no need to install 
additional drivers on the computer.
TL550 T420
T650 

Setting up the display 26
Connecting power
1. Plug one end of the power cord into the AC IN jack on the display and the other end 
into an appropriate power outlet (if the outlet is switched, turn on the switch). 
2. Press the power switch to turn on the main power. The display will enter standby 
mode and the power indicator will light up red.
• The supplied power cord is suitable for use with 110-240V AC power only.
• The power cord and outlet illustrated may differ from the ones used in your region.
•...

Using the touch screen 27
Using the touch screen
You can use the optical touch screen to control your operating system. The touch screen 
can emulate basic mouse functions and supports multi-touch functions for Windows 7*. 
The following table shows a list of gestures you can use on the touch screen.
• Ensure that you have installed the USB cable on the display to a computer.
• *Multi-touch functions are only supported by Windows 7 - Home Premium, Professional, 
Enterprise and Ultimate versions. For...

Using the touch screen 28
For Windows Vista and Windows 7
Selection Drag one finger left or right.
Pan up / Pan down / Back / 
ForwardQuickly drag your finger (Flick) in a desired direction.
Multi-touch functions
For Windows 7 - Home Premium, Professional, Enterprise and Ultimate versions
Right-click 1. Press on the target.
2. Tap the screen with another finger.
3. Release the second finger.
Scrolling Drag one or two fingers up or down.
Zoom Move two fingers apart or toward each other.
OS...

Using the touch screen 29
Supported by specific 
applications• Move two fingers in opposing directions.
• Use one finger to pivot around another.
Supported by specific 
applicationsTap two fingers simultaneously.
The target should be the midpoint between the fingers.
For Windows XP, Windows Vista and Windows 7
Wakeup from Windows 
sleep mode (S3)Press and hold for 4 seconds.
OS functionsGesture actions 

Using the touch screen 30
Calibrating the touch screen
You can calibrate the touch screen to use it more efficiently.
Refer to Calibration tools on the enclosed CD to perform the operation.
Important instructions for using the touch screen
• Do not bend the retro-reflective bars. The touch screen cannot function normally if the 
bars are bent.
• Keep the touch screen out of direct sunlight or spotlights.
• Avoid displaying still images to prevent image retention.
• Regularly clean the retro-reflective...