Key Web resources
Lenovo support: https://support.lenovo.com
Lenovo user forums: https://forums.lenovo.com/
Note: Your computer might not come with a Windows
operating system, see the recovery information in the User Guide. See "Accessing your User Guide" later in this document
for additional information.
Leave in an extremely low air pressure environment
•
Key Web resources
•
Leave in an extremely high-temperature environment
•
Crush, puncture, cut, or incinerate
Unpack
Lenovo support: https://support.lenovo.com
Unpack
Dispose of the battery as required by local ordinances or
Lenovo user forums: https://forums.lenovo.com/
regulations.
* Available on some models
* Available on some models
The following statement applies to users in the state of
California, U.S.A.
California Perchlorate Information:
Computer
Products containing manganese dioxide lithium coin-cell
Computer
batteries may contain perchlorate.
Perchlorate Material - special handling may apply, See
https://www.dtsc.ca.gov/hazardouswaste/perchlorate/
Read this documentation before
Read this documentation before
Using earphones, headphones, or a
using your computer
using your computer
headset
Note: Your computer might not come with a Windows
operating system, see the recovery information in the User Guide. See "Accessing your User Guide" later in this document
•
If your computer has both a headphone connector and
for additional information.
an audio line-out connector, always use the headphone
Safety, Warranty, and Setup Guide
Safety, Warranty, and Setup Guide
Brief user notices
Brief user notices
®
recovery disc set or USB key. To restore the Microsoft
ThinkStation P720 and P920
ThinkStation P720 and P920
Mouse*
Mouse*
recovery disc set or USB key. To restore the Microsoft
®
PN: SP40A32839
Printed in China
the equalizer to maximum increases the earphone and
headphone output voltage and the sound pressure
level. Therefore, to protect your hearing, adjust the
equalizer to an appropriate level.
Excessive use of headphones or earphones for a long
PN: SP40A32839
period of time at high volume can be dangerous if the
Printed in China
output of the headphone or earphone connectors do not
comply with specifications of EN 50332-2. The headphone
output connector of your computer complies with EN
Keyboard*
50332-2 Sub clause 7. This specification limits the
Keyboard*
computer's maximum wide band true RMS output voltage
to 150 mV. To help protect against hearing loss, ensure
that the headphones or earphones you use also comply
Laser radiation when open. Do not stare into the beam,
with EN 50332-2 (Clause 7 Limits) or a wide band
do not view directly with optical instruments, and
Laser radiation when open. Do not stare into the beam,
characteristic voltage of 75 mV. Using headphones that do
avoid direct exposure to the beam.
do not view directly with optical instruments, and
not comply with EN 50332-2 can be dangerous due to
avoid direct exposure to the beam.
Plastic bag notice
excessive sound pressure levels.
Plastic bag notice
If your Lenovo computer came with headphones or
DANGER
earphones in the package, as a set, the combination of the
Power cord*
Power cord*
®
Windows
Documentation
Documentation
Windows
®
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