Lenovo N21 Chromebook Hardware Maintenance Manual - Lenovo N21 Chromebook - Page 29

Table 1. FRU CRU categories continued - ac adapter

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Table 1. FRU (CRU) categories (continued) 7 Speakers N 8 WLAN & Bluetooth combo module N 9 I/O board N 10 DC-in cable N 11 Lower case N ac power adapter * Power cord * Note: A customer replaceable unit (CRU) is identified by a single asterisk (*) or two asterisks (**) in the CRU ID column. A single asterisk (*) means that the part is a Self-service CRU; two asterisks (**) means that the part is an Optional-service CRU. A Letter "N" in the CRU ID column means that the part is not a CRU. Chapter 3. Idetifying FRUs (CRUs) 23

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Table 1. FRU (CRU) categories (continued)
7
Speakers
N
8
WLAN & Bluetooth combo module
N
9
I/O board
N
10
DC-in cable
N
11
Lower case
N
ac power adapter
*
Power cord
*
Note:
Acustomerreplaceableunit(CRU)isidentifiedbyasingleasterisk(*)ortwoasterisks(**)intheCRU
IDcolumn.Asingleasterisk(*)meansthatthepartisaSelf-serviceCRU;twoasterisks(**)meansthatthe
partisanOptional-serviceCRU.ALetter“N”intheCRUIDcolumnmeansthatthepartisnotaCRU.
Chapter 3
.
Idetifying FRUs (CRUs)
23