Lenovo G555, Руководство по техническому обслуживанию аппаратной части, Страница: 84 / 98

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Lenovo G555 Hardware Maintenance Manual
Parts list
This section presents the following service parts:
•
“Overall” on page 81
• “LCD FRUs” on page 85
• “Keyboard” on page 87
• “Miscellaneous parts” on page 89
• “AC adapters” on page 90
• “Power cords” on page 91
Notes:
• Each FRU is available for all types or models, unless specific types or models
are specified.
• FRU with specific models listed and described as xxU (where U is an example
of a country designator) should be used for all models ending in U.
• FRU with specific models listed and described as 3Dx (where 3D is an example
of a unique configuration) should be used for all of these models, unless specific
country or region designator is specified.
• A CRU (customer replaceable unit) is identified by a single asterisk (*) or two
asterisks (**) in the CRU ID column. An N in the CRU ID column means that
the part is not a CRU. A single asterisk (*) means that the part is a Self-service
CRU; two asterisks (**) means that the part is an Optional-service CRU.
Lenovo computers contain the following types of CRUs:
Self-service CRUs
These CRUs are unplugged or held by no more than two screws.
Examples of these types of CRUs include an AC adapter, a power
cord, a battery, and a hard disk drive. Other Self-service CRUs
depending on product design may include a memory, a wireless card,
a keyboard, and a palm rest with finger print reader and touchpad.
Optional-service CRUs
These CRUs are isolated parts within the computer that are concealed
by an access panel that is typically secured by more than two screws.
Once the access panel is removed, the specific CRU is visible.
• A RoHS compliant FRU is identified by an R. An N in the RoHS ID column
means the part is not a RoHS compliant FRU.
• FRUs marked with OP are available as options.