Dell Precision 3470 Service Manual page 56

4. Remove the 2280 solid-state drive
5. Remove the battery.
6. Remove the wireless card.
7. Remove the heat sink
8. Remove the assembly inner
9. Remove the system board.
NOTE: The system board can be removed with the heat sink attached in order to simplify the procedure and preserve
the thermal bond between the system board and heat sink.
About this task
The following images indicate the location of the keyboard assembly and provide a visual representation of the removal
procedure.
Steps
1.
NOTE: For models shipped with a USH module, disconnect the USH cable from the keyboard bracket.
Lift the latch and disconnect the keyboard cable and keyboard backlit cable (for models that are shipped with the keyboard
backlight) from the touchpad.
2. Remove the sixteen (M2x2) screws that secure the keyboard assembly to the palm-rest.
56 Removing and installing components
or 2230 solid-state
heat sink.
frame.
drive.