Lenovo ThinkPad L520 Hardware Maintenance Manual - Page 86

Backup battery, 1150 Bluetooth daughter card

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When installing: Plug the gray cable into the jack labeled MAIN, and the black cable into the jack labeled AUX on the card. 1140 Backup battery For access, remove these FRUs in order: • "1010 Battery pack" on page 59 • "1030 Optical drive or travel cover" on page 62 • "1120 Palm rest assembly with cables" on page 75 Removal steps of backup battery DANGER Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode. 1 2 When installing: Make sure that the battery connector is attached firmly to the system board. 1150 Bluetooth daughter card For access, remove these FRUs in order: • "1010 Battery pack" on page 59 • "1030 Optical drive or travel cover" on page 62 • "1120 Palm rest assembly with cables" on page 75 80 Hardware Maintenance Manual

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When installing:
Plug the gray cable into the jack labeled
MAIN
, and the black cable into the jack labeled
AUX
on the card.
1140 Backup battery
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 59
•
“1030 Optical drive or travel cover” on page 62
•
“1120 Palm rest assembly with cables” on page 75
Removal steps of backup battery
DANGER
Use only the battery specified in the parts list for your computer. Any other battery could ignite
or explode.
2
1
When installing:
Make sure that the battery connector is attached firmly to the system board.
1150 Bluetooth daughter card
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 59
•
“1030 Optical drive or travel cover” on page 62
•
“1120 Palm rest assembly with cables” on page 75
80
Hardware Maintenance Manual