Sony PCG-Z1VAP2 - Manual (Page 142)

Connecting speakers
You can connect speakers to your computer to enhance the sound quality of your computer.
Do not place floppy disks on the speakers. The speakers' magnetic field may damage the data stored on the
floppy disks.
To connect speakers to your computer
1. Turn down the volume of the speakers.
2. Plug the speaker cable into the Headphone jack on the computer.
3. Plug the other end of the speaker cable into the speaker.
Connecting Speakers
See the guide that accompanied your speakers for more information on its installation and use.
Page 142