Lenovo 3254ACU, Hardware Maintenance Manual

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Table 8. Major FRUs and CRUs
No. FRU description Self-service CRU Optional-service CRU
1
LCD unit
No No
2
Power button sub card No No
3
Keyboard bezel No No
4
Backup battery Yes No
5
Wireless WAN card or mSATA solid-state drive No Yes
6
Half-size wireless WAN card bracket No Yes
7
Wireless LAN card No Yes
8
Battery pack Yes No
9
RJ45 sub card No No
10
DC-in connector
No No
11
Optical drive or blank bezel Yes No
12
I/O sub card with USB connector and audio jack No No
13
Small bottom cover Yes No
14
Large bottom cover Yes No
15
Hard disk drive Yes No
16
Speaker assembly
No No
17
Base cover assembly No No
18
CPU No No
19
Memory module Yes No
20
System board assembly No No
21
Thermal fan No Yes
22
Thermal pipes No No
23
Keyboard No Yes
24
TrackPoint cap Yes No
Chapter 7
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Locations
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