Remove The System Board - Lenovo Yoga C640-13IML Hardware Maintenance Manual

Remove the system board

Make sure the following FRU (or CRU) have been removed.
"Remove the lower case" on page 28
"Remove the battery pack" on page 29
"Remove the thermal module" on page 30
"Remove the M.2 solid-state drive" on page 36
"Remove the WWAN card" on page 36
"Remove the WLAN card" on page 34
"Remove the I/O brackets" on page 32
Step 1. Disconnect the camera cable, EDP cable, dc-in cable, speaker cable, touchpad cable, LTE antenna
cable, backlight cable, keyboard cable, WLAN cable, and fingerprint reader cable.
Figure 19. Disconnect all the cables
Step 2. Remove three screws.
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Lenovo Yoga C640-13IML Hardware Maintenance Manual