Lenovo C2 Series User Manual page 12

1.5.3 If you have audio devices, attach them using the
following instructions:
Microphone
Headphone
1.5.4 Connect any additional devices that you have. Your
computer might not have all connectors shown.
1
USB connector
Network adapter
connector
TV-Tuner connector
(IEC type)
TV antenna
connector (F type)
6
User Guide
1
Use this connector to attach a microphone (purchased separately)
to your computer when you want to record sound or if you use
speech-recognition software.
Use this connector to attach headphones (purchased separately)
to your computer when you want to listen to music or other
sounds without disturbing anyone.
2
Use this connector to attach a device that requires a
USB connection.
Use this connector to attach the computer to an
ethernet-type local area network
Only supported on systems with optional TV
tuner card (Some models are equipped with this
connector).
To connect the signal input cable for CATV (Some
models are equipped with this connector).
2
3 4