BenQ Sp830/sp831 Digital Projector User Manual

Positioning your projector 21
When the screen aspect ratio is 4:3 and the projected picture is 16:9 or 15:9
Table B1: The screen aspect ratio is 4:3 and the projected picture is 16:9
D
A
D
B C
Maximum zoom Minimum zoom
Projection distanceCenter of lens Screen
Offset
Floor Installation
D
A
D
B C
Maximum zoom
Minimum zoomProjection distance
Center of lens
Screen Offset
Ceiling Installation
Screen DimensionsProjected 
picture sizeBlack 
bar (D)Distance from Screen in 
mmVe r t i c a l  
Offset...

22 Positioning your projectorTable B2: The screen aspect ratio is 4:3 and the projected picture is 15:9
There is 3% tolerance among these numbers in Table A, Table B1, and Table B2 due to optical 
component variations. 
BenQ recommends that if you intend to permanently install the projector, you should 
physically test the projection size and distance using the actual projector in situ before you 
permanently install it, so as to make allowance for this projectors optical characteristics. This 
will help...

Connection 23
4. Connection
When connecting a signal source to the projector, be sure to:
1. Turn all equipment off before making any connections.
2. Use the correct signal cables for each source.
3. Ensure the cables are firmly inserted. 
In the connections shown below, some cables may not be included with the projector (see 
Shipping contents on page 10). They are commercially available from electronics stores.
Connecting a computer
The projector provides VGA and DVI input sockets that allow you to...

24 Connection
Connecting a monitor
If you want to view your presentation close-up on a monitor as well as on the screen, you 
can connect the projector to an external monitor by following the instructions below.
To connect the projector to a monitor (either through a VGA cable or VGA to 
DVI-A cable):
The final connection path should be like that shown in the following diagram: • With a VGA cable: • With a VGA to DVI-A cable:
Note: Your monitor must be equipped with a 
DVI input socket.
1. Connect the...

Connection 25
Connecting Video source devices
This section describes how to connect the projector to Video source devices using video 
cables. Video cable connections are recommended for Video presentations. 
You can connect your projector to various Video source devices that provide any one of the 
following output sockets:
•DVI
•Component Video
•S-Video
•Video (composite)
The method you choose will most likely depend upon the availability of matching terminals 
on both the projector and the Video...

26 Connection
Connecting a DVI source device
The projector provides a DVI-I input socket that allows you to connect it to a DVI source 
device like a DVD player, or a VGA output device like a notebook or desktop computer.
There are three types of DVI connectors: DVI-A, DVI-D, and DVI-I. The DVI-I socket is an 
integrated connector which supports both formats: DVI-A, and DVI-D. 
DVI-A format is used to carry a DVI signal to an analog (VGA) display, or vice-versa. 
Although some signal quality is lost from...

Connection 27
Connecting a Component Video source device
Examine your Video source device to determine if it has a set of unused Component Video 
output sockets 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 Component Video source device through a 
Component Video cable:
1. Take a Component Video cable and connect one end to the Component Video output 
sockets of the Video...

28 Connection
Connecting an S-Video or a composite Video source device
Examine your Video source device to determine if it has an unused S-Video or Video output 
socket available: 
• If it has both sockets, use the S-Video output socket for connection as the S-Video 
termial provides better picture quality than the Video terminal. See Connecting Video 
source devices on page 25 for details.
• If it has either of the output socket, you can also continue with this procedure.
• If not, you will need to...

Connection 29
Connecting Audio device
The projector has built-in speakers which are designed to provide basic audio functionality 
accompanying data presentations for business purposes only. It is not designed for, nor 
intended for audio reproduction use as might be expected in home theater or home cinema 
applications.
If you wish, you can make use of the projector speakers in your presentations, and also 
connect separate amplified speakers to the AU D I O  O U T  ( L / R ) sockets of the projector....

30 Operation
5. Operation
Starting up the projector
1. Plug the power cord into the projector and into a wall 
socket. Turn on the wall socket switch (where fitted).
2. Press the main power switch to the I position.
Check that the Power indicator on the projector lights 
orange after power has been applied.
3. Remove the lens cap. 
If it is left on, it could become deformed due to the 
heat produced by the projection lamp.
4. Press and hold (for 2 seconds)   on the projector or 
remote control to start...