Benq SP831 Manuel D’Utilisation
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.
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.
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 the signal conversion, it still transmits higher
picture quality than a standard VGA connection.
Although some signal quality is lost from the signal conversion, it still transmits higher
picture quality than a standard VGA connection.
DVI-D format is used to directly carry a digital signal to a digital display without signal
conversion. The pure digital connection provides faster and higher picture quality than an
analog connection, due to the nature of the digital format.
conversion. The pure digital connection provides faster and higher picture quality than an
analog connection, due to the nature of the digital format.
DVI-A and DVI-D formats are non-interchangeable. You cannot connect a DVI-A format
connector to DVI-D equipment and visa-versa. Make sure you know which kind of format
your equipment is fitted with before you purchase any cables. Or you can purchase a DVI-I
cable which will be more useful in any type of DVI connection situation.
connector to DVI-D equipment and visa-versa. Make sure you know which kind of format
your equipment is fitted with before you purchase any cables. Or you can purchase a DVI-I
cable which will be more useful in any type of DVI connection situation.
Examine your source device to determine if it has an unused DVI or VGA (D-Sub) output
socket available:
•
socket 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 DVI source device or a computer:
For information on connecting a DVI source device to a computer through a VGA to DVI-A
cable, see
cable, see
1.
Take the DVI (DVI-D or DVI-I) cable and connect one end to the DVI output socket
of the DVI source device.
of the DVI source device.
2.
Connect the other end of the cable to the DVI-I signal input socket on the projector.
The final connection path should be like that shown in the following diagram:
The final connection path should be like that shown in the following diagram:
i. DVI-D or DVI-I
cable
AV device