Lenovo ThinkPad W700 2752 Hardware Maintenance Manual page 81

When installing: When you attach the palm rest, do as follows:
Table 17. Installation of the palm rest
1. Attach the color sensor connector 1 and the fingerprint reader connector 2
firmly to the system board. Some models have only the fingerprint reader
connector.
2. Attach the palm rest as shown in this figure.
3
2
3
1
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ThinkPad W700