Lenovo 3000 Series - Manual (Page 60)

Lenovo Notebook Computer User Guide
60
your computer and disks and avoid magnetic detectors
(including the arch‐like machine and handheld detectors in the
hands of safety investigators).
z If you travel with your computer abroad, get to know the power
cord standard in the destination country before you go.
4.1.6 Do not change the factory hardware specification
without authorization
z Do not change the computer’s factory hardware specification,
including removing original hardware or adding new hardware,
without authority from Lenovo licensed agencies.
z Lenovo has no warranty on the usability or reliability of any
devices or software that are not provided by Lenovo or its
affiliates.
4.2 Troubleshooting
4.2.1 The computer does nothing when you press the
power button.
Do as follows:
z See if the AC adapter and its power cord are well connected to
the computer and power outlet.
z Check the battery’s power status (some batteries are equipped
with a power self‐checking button). See if the battery interface is
damaged or if the power cord plug is damaged.
z Use the battery and AC power to power the computer
respectively. Turn the computer on to see if the power indicator