Lenovo B490 Hardware Maintenance Manual - Page 85

Parts list, Miscellaneous parts

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Chapter 9. Parts list This chapter contains following lists of the service parts. • "Overall" on page 80 • "LCD FRUs" on page 83 • "Keyboard" on page 85 • "Miscellaneous parts" on page 87 • "ac power adapters" on page 88 • "Power cords" on page 89 Notes: • Each FRU is available for all types or models, unless otherwise specified. • A CRU 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. CRU statement for customers: You can resolve some problems with your product with a replacement part you can install yourself, called a "Customer Replaceable Unit" or "CRU". Some CRUs are designated as self-service CRUs and others are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For optional-service CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according to the warranty service for your product. If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at http://www.lenovo.com/UserManuals. Follow the on-screen instructions to find the manual for your product. You might be required to return the defective CRU. When return is required: (1) return instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details. Lenovo computers contain the following types of CRUs: - Self-service CRUs: These CRUs unplug or are held by no more than two screws. Examples of these types of CRUs include the ac power adapter, power cord, battery, and hard disk drive. Other self-service CRUs depending on product design might include the memory module, wireless card, keyboard, and palm rest with finger print reader and touch pad. - 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. © Copyright Lenovo 2012 79

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Chapter 9.
Parts list
This chapter contains following lists of the service parts.
•
“Overall” on page 80
•
“LCD FRUs” on page 83
•
“Keyboard” on page 85
•
“Miscellaneous parts” on page 87
•
“ac power adapters” on page 88
•
“Power cords” on page 89
Notes
:
•
Each FRU is available for all types or models, unless otherwise specified.
•
A CRU 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.
CRU statement for customers:
You can resolve some problems with your product with a replacement part you can install yourself, called a
“Customer Replaceable Unit” or “CRU”. Some CRUs are designated as self-service CRUs and others are
designated as optional-service CRUs.
Installation of self-service CRUs is your responsibility. For optional-service
CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according
to the warranty service for your product.
If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU
information and replacement instructions are shipped with your product and are available from Lenovo at any time
upon request. You can find a list of CRUs for your product in this
Hardware Maintenance Manual
. An electronic
version of this manual can be found at http://www.lenovo.com/UserManuals. Follow the on-screen instructions to
find the manual for your product. You might be required to return the defective CRU. When return is required: (1)
return instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you
might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of
your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details.
Lenovo computers contain the following types of CRUs:
–
Self-service CRUs:
These CRUs unplug or are held by no more than two screws. Examples of these types
of CRUs include the ac power adapter, power cord, battery, and hard disk drive. Other self-service CRUs
depending on product design might include the memory module, wireless card, keyboard, and palm rest
with finger print reader and touch pad.
–
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.
© Copyright Lenovo 2012
79