General Safety Guidelines - Lenovo IdeaCentre A340-24ICB F0E6 User Manual

General safety guidelines

Always observe the following precautions to reduce the risk of injury and property
damage.
„ Service and upgrades
Do not attempt to service a product yourself unless instructed to do so by the Customer
Support Center or your documentation. Only use a service provider who is approved to
repair your particular product.
NOTE:
Some computer parts can be upgraded or replaced by the customer. Upgrades
typically are referred to as options. Replacement parts approved for customer
installation are referred to as Customer Replaceable Units, or CRUs. Lenovo
provides documentation with instructions when it is appropriate for customers
to install options or replace CRUs. You must closely follow all instructions when
installing or replacing parts. The Off state of a power indicator does not necessarily
mean that voltage levels inside a product are zero. Before you remove the covers
from a product equipped with an ac power cord, always make sure that the power
is turned off and that the product is unplugged from any power source. If you have
any questions or concerns, contact the Customer Support Center.
After replacing a CRU, reinstall all protective covers, including the computer cover,
before connectingpower and operating the computer. This action is important to help
prevent unexpected electricalshock and help ensure the containment of an unexpected
fire that could happen under extremelyrare conditions.
Although there are no moving parts in your computer after the power cord has been
disconnected, the following warnings are required for your safety.
CAUTION:
Hazardous moving parts. Keep fingers and other body parts away.
-14-