Lenovo X300 manual Parts list, External CRUs pluggable, External CRUs with latches

Parts list

This section contains following lists of the service parts.

v“Overall” on page 115

v“LCD FRUs” on page 120

v“Keyboard” on page 121

v“Miscellaneous parts” on page 122

v“AC adapters” on page 124

v“Power cords” on page 125

v“Recovery discs” on page 126

v“Common service tools” on page 129

Notes:

vEach FRU is available for all types or models, unless specific types or models are specified.

vFRU 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.

vFRU 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.

vA 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 the part is not a CRU. A single asterisk (*) means the part is an External CRU; two asterisks (**) means the part is an Internal CRU.

ThinkPad computers contain the following types of the external CRUs:

External CRUs (pluggable)

These CRUs unplug from the computer. Examples of these types of CRUs include an ac adapter, an external keyboard, a mouse, a power cord, a port replicator, a USB device, and an external bay device adapter.

External CRUs with latches

These CRUs have a latch to help you to remove and replace the part. Examples of these types of CRUs include a battery pack, an Ultrabay device such as an optical drive, a hard disk drive, and an extended battery.

ThinkPad computers contain the following types of the internal CRUs:

Internal CRUs (located behind an access panel)

These CRUs are isolated parts within the computer that are concealed by an access panel that is typically secured by either one or two screws. Once the access panel is removed, only the specific CRU is visible. Examples of these types of CRUs include a memory card and a hard disk drive.

Internal CRUs (located within the product itself)

These CRUs are accessible only by opening the outer case of the computer. Examples of these CRUs include the integrated keyboard parts beneath the integrated keyboard and parts beneath the palm rest.

vA RoHS compliant FRU is identified by an R. An N in the RoHS ID column

means the part is not a RoHS compliant FRU.

v FRUs marked with are available as options.

114ThinkPad X300 Hardware Maintenance Manual