Sony PCV-E302DS - Manual (Page 386)

See the manual that came with your digital audio device for more information on setting it up and using it.
Your VAIO computer incorporates Serial Copy Management System, which will not prevent you from making a
direct digital-to-digital copy from a digital source, but from such copies will prevent a second digital-to-digital copy
from being made.
Connecting an S-Link (Control A1) Equipped Device
Some models of the VAIO MicroTower include an S-Link (Control A1) connector. Control A1
connections provide a path for the transmission of control signals, thus enabling automatic
operation and control features that are usually associated with integrated audio systems. See
Read
Me First for information on your specific model.
To connect an S-Link (Control A1) device
 Locate the S-Link (Control A1) connector. Plug the S-Link (Control A1) device into this connector.
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