Lenovo ThinkCentre M70z - Manual (Page 25)

4. If you have audio devices, attach them using the following instructions. For
more information about speakers, see steps 5 and 6.
1 Headphone
connector
Use this connector to attach headphones to your computer
when you want to listen to music or other sounds without
disturbing anyone.
2 Microphone
connector
Use this connector to attach a microphone to your computer
when you want to record sound or if you use speech-recognition
software.
5. If you have powered speakers with an ac power adapter:
a. Connect the cable that runs between the speakers, if necessary. On
some speakers, this cable is permanently attached.
b. Connect the ac power adapter cable to the speakers.
c. Connect the speakers to the audio line-out connector or the headphone
connector on the computer.
d. Connect the ac power adapter to the ac power source.
6. If you have unpowered speakers with no ac power adapter:
a. Connect the cable that runs between the speakers, if necessary. On
some speakers, this cable is permanently attached.
b. Connect the speakers to the audio line-out connector or the headphone
connector on the computer..
Chapter 3. Setting up your computer
19