Remove The Hinges - Lenovo Yoga C740 Series Hardware Maintenance Manual

Figure 34. Disconnect the connectors
Step 2. Remove the camera and the MIC board.
Figure 35. Remove the camera and the MIC board
Go to
https://support.lenovo.com/partslookup
replacement parts:
Camera and MIC board

Remove the hinges

Make sure the following FRU (CRU) have been removed.
"Remove the lower case" on page 26
"Remove the battery pack" on page 27
"Remove the RTC battery" on page 28
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Lenovo Yoga C740 series Hardware Maintenance Manual
to look up the Lenovo part numbers of the following