1110 Backup Battery; 1120 Bluetooth Daughter Card - Lenovo 019923U Hardware Maintenance Manual

When installing: Plug the gray cable into the connector labeled MAIN or 1, and the black cable into the
connector labeled AUX or 2 on the card.

1110 Backup battery

For access, remove these FRUs in order:
• "1010 Battery pack" on page 58
• "1020 Optical drive or travel cover" on page 58
• "1090 Palm rest assembly with cables" on page 69
DANGER
Use only the battery specified in the parts list for your computer. Any other battery could ignite
or explode.
Removal steps of the backup battery
When installing: Make sure that the battery connector is attached firmly to the system board.

1120 Bluetooth daughter card

For access, remove these FRUs in order:
• "1010 Battery pack" on page 58
• "1020 Optical drive or travel cover" on page 58
• "1090 Palm rest assembly with cables" on page 69
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Hardware Maintenance Manual