Lenovo ThinkPad T420si Hardware Maintenance Manual - Page 90

Palm rest with fingerprint reader, smart card reader, and speaker, 1080 Keyboard

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Page 90 highlights

• "1080 Keyboard" on page 80 DANGER Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode. Removal steps of backup battery 1 2 When installing: Attach the backup battery a in the insulation sheet as shown in the figure below and make sure that the battery connector is attached firmly. a 1100 Palm rest with fingerprint reader, smart card reader, and speaker For access, remove these FRUs in order: • "1010 Battery pack" on page 68 • "1080 Keyboard" on page 80 84 Hardware Maintenance Manual

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•
“1080 Keyboard” on page 80
DANGER
Use only the battery specified in the parts list for your computer. Any other battery could ignite
or explode.
Removal steps of backup battery
1
2
When installing:
Attach the backup battery
a
in the insulation sheet as shown in the figure below and make sure that the
battery connector is attached firmly.
1100 Palm rest with fingerprint reader, smart card reader, and speaker
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 68
•
“1080 Keyboard” on page 80
84
Hardware Maintenance Manual