Samsung SP-P410M - Manual (Page 15)

2-6 Installation and Connection
2-6 Connecting with a PC
1. Connect [PC IN] port on the rear side of the projector to the monitor output port of the PC using a PC video cable.
2. When connections are all completed, connect both power cords of the projector and the PC.
3. Connect the [VIDEO/PC AUDIO IN] input port of the projector to the speaker output ports of the PC using an audio cable.
This product supports plug and play and therefore, if you use Window XP, you do not need to setup the driver on your PC.
Using the Projector
1. Turn on the projector and press the [SOURCE] button to select <PC>.
If the <PC> Mode is not available, make sure the PC video cable is properly connected.
2. Turn on the PC and set the PC Environment when necessary.
3. Adjust the screen.(Auto Adjustment)