Lenovo ThinkBook 13X Hardware Maintenance Manual page 42

"Remove the battery pack" on page 29
"Remove the system board mylar" on page 30
"Remove the Type C bracket" on page 32
"Remove the heat sink" on page 33
"Remove the USB board mylar" on page 34
"Remove the fan" on page 37
"Remove the USB board cable bracket 1" on page 35
Step 1. Detach the speaker cable connector and then peel off the tape.
Figure 15. Detach the speaker cable connector and peel off the tape
Step 2. Disconnect cables connected to the USB board.
Figure 16. Disconnect cables connected to the USB board
Step 3. Remove two screws and then remove the USB board.
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Hardware Maintenance Manual