Sony VAIO VAIO PCG505F User Manual page 57

Gently press on the CD-ROM drive lid until it clicks shut
In addition to connecting the CD-ROM drive to your computer, you must
connect the drive to the computer with a male-to-male stereo mini plug
(not supplied).
Connect one end of the stereo mini plug to the headphone jack on the
CD-ROM drive and the other end to the Line In jack on the left side of
your computer.
Right-click the speaker icon on the taskbar and select Open Volume
Control from the shortcut menu. The Volume Control window opens.
Drag the Line In slider to adjust the volume.
Remove the PC card from the computer. See "Using PC Cards" on
page 26 for details.
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