Lenovo IdeaPad S9e -FR - Manual (Page 108)

DANGER
Connect and disconnect cables as described in the following procedures when installing,
moving, or opening covers on this product or attached devices.
To connect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlets.
5. Turn devices ON.
To disconnect:
1. Turn everything OFF.
2. First, remove power cords from outlets.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
The power cord must be disconnected from the wall outlet or receptacle before installing all
other electrical cables connected to the computer.
The power cord may be reconnected to the wall outlet or receptacle only after all other
electrical cables have been connected to the computer.
100 Lenovo ® IdeaPad ™ S9e and S10e User Guide