Lenovo IdeaPad Y450 Bedienungsanleitung PDF herunterladen (Seite 71)

Chapter 6. Safety, use, and care information

 Service and upgrades

Attention:

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. For

more information on CRUs, see “Appendix B. Customer Replaceable Units

(CRUs)” on page 107. If you have any questions or concerns, contact the

Customer Support Center.

Although there are no moving parts in your computer after the power cord

has been disconnected, the following warnings are required for your

safety.

Danger:

Hazardous moving parts. Keep fingers and other body parts away.

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Y450 UserGuide V1.0 EN.book Page 62 Tuesday, December 16, 2008 5:52 PM

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Lenovo IdeaPad Y450 Bedienungsanleitung Seite 71