Lenovo ThinkPad P70 Hardware Maintenance Manual page 39

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 prod uct. 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. Follow the on-screen instructions to find the manual for
your product. You might be required to return the defective part that is replaced by the 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.
ThinkPad 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, and HDD. Other self-service CRUs
depending on product design might include the memory module, wireless card, keyboard, and palm
rest with fingerprint 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.
• A Self-service CRU is identified by a single asterisk (*) in the CRU ID column. An Optional-service CRU is
identified by two asterisks (**). An N in the CRU ID column means that the part is not a CRU.
• FRUs marked with OP are available as options.
57
.
Chapter 7 Locations