Lenovo ThinkPad T490s Hardware Maintenance Manual page 60

Table 6. Major FRUs and CRUs
No. FRU description
1
LCD unit
2
Trackpad
3
Keyboard assembly
4
Docking-station-connector bracket
5
Power card
6
Power-card cable
7
Wireless WAN card*
8
USB-card cable
9
USB card
10
Thermal fan assembly
11
Smart card reader*
12
Dummy smart card reader*
13
Fingerprint-reader-and-smart-card-reader cable*
14
Fingerprint-reader cable*
15
Smart-card-reader cable*
16
Fingerprint-reader bracket*
17
Fingerprint reader*
18
Base cover assembly
19
Trackpad cable (for non-NFC models)*
20
Trackpad cable (for NFC models)*
21
NFC card*
22
Built-in battery
23
Speaker assembly
24
M.2 2242 solid-state drive bracket*
25
M.2 2242 solid-state drive*
26
Thermal pad for M.2 2242 solid-state drive*
27
System board
28
Coin-cell battery
29
M.2 2280 solid-state drive*
30
Thermal pad for M.2 2280 solid-state drive*
31
TrackPoint cap
32
Nano-SIM-card and microSD-card tray
a
Lenovo factory recovery USB key*
b
Power cord
54
T490s and X390 Hardware Maintenance Manual
Self-service Optional-service
CRU CRU
No No
No No
No No
No No
No No
No No
Yes No
No No
No No
No No
No No
No No
No No
No No
No No
No No
No No
Yes No
No No
No No
No No
No No
No No
Yes No
Yes No
No No
No No
No No
Yes No
No No
Yes No
Yes No
Yes No
Yes No