Lenovo N21 Chromebook Hardware Maintenance Manual - Lenovo N21 Chromebook - Page 31

up the Lenovo part numbers of ac power adapters and power cords.

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Table 2. FRU categories for the LCD module (continued) 7 WLAN antennas N 8 LCD base cover N Lenovo part numbers of replacement FRUs or CRUs When servicing a customer's computer, Lenovo service technicians may use part numbers listed in the following tables to order replacement parts through Lenovo CRM (customer relationship management) system. Table 3. Part numbers for FRUs (CRUs) No. FRU (CRU) category 2 Foot rubber pack Parts description 3 Upper case Foot Rubber Pack Q N21 Upper Case Q N21 W/Touchpad US 4 Battery pack Upper Case Q N21 W/Touchpad UK 5 Thermal module N21 SP/C L14M3P23 11.1V36wh3cell bty 6 System board Thermal Module Q N21 W/FAN MB Q N21 N2840 2G 7 Speakers MB Q N21 N2840 4G 8 WLAN & Bluetooth combo module Speaker Q N21 L+R Intel 7260 2x2AC+BT PCIE M.2 WLAN V2 Ltn BCM4356 2x2AC+BT4.0 PCIE M.2 WLAN 9 I/O board Fxn BCM4356 2x2AC+BT4.0 PCIE M.2 WLAN 10 DC-in cable I/O Board Q N21 W/Cable 11 Lower case DC/IN Cable Q N21 Lower Case Q N21 W/Root Rubber Lenovo part number 5CB0H70355 5CB0G15038 5B10H33230 5H40H70348 5B20H70345 5B20H70352 5SB0H70351 20200552 SW10A11642 SW10A11643 5C50H70342 5C10H70350 5CB0H70354 Note: Refer to Appendix D "Lenovo part numbers of ac adapters and power cords" on page 51 to look up the Lenovo part numbers of ac power adapters and power cords. Chapter 3. Idetifying FRUs (CRUs) 25

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Table 2. FRU categories for the LCD module (continued)
7
WLAN antennas
N
8
LCD base cover
N
LenovopartnumbersofreplacementFRUsorCRUs
When servicing a customer’s computer, Lenovo service technicians may use part numbers listed in the
following tables to order replacement parts through Lenovo CRM (customer relationship management)
system.
Table 3. Part numbers for FRUs (CRUs)
No.FRU(CRU)category
Partsdescription
Lenovopartnumber
2
Footrubberpack
Foot Rubber Pack Q N21
5CB0H70355
3
Upper case
Upper Case Q N21 W/Touchpad US
5CB0G15038
Upper Case Q N21 W/Touchpad UK
4
Battery pack
N21SP/CL14M3P2311.1V36wh3cellbty
5B10H33230
5
Thermal module
Thermal Module Q N21 W/FAN
5H40H70348
6
System board
MB Q N21 N2840 2G
5B20H70345
MB Q N21 N2840 4G
5B20H70352
7
Speakers
Speaker Q N21 L+R
5SB0H70351
8
WLAN & Bluetooth combo
module
Intel72602x2AC+BTPCIEM.2WLANV2
20200552
LtnBCM43562x2AC+BT4.0PCIEM.2WLAN
SW10A11642
FxnBCM43562x2AC+BT4.0PCIEM.2WLAN
SW10A11643
9
I/O board
I/O Board Q N21 W/Cable
5C50H70342
10
DC-in cable
DC/IN Cable Q N21
5C10H70350
11
Lower case
Lower Case Q N21 W/Root Rubber
5CB0H70354
Note:
Refer to Appendix D “Lenovo part numbers of ac adapters and power cords” on page 51 to look
up the Lenovo part numbers of ac power adapters and power cords.
Chapter 3
.
Idetifying FRUs (CRUs)
25