Dell Precision 3470 Service Manual page 91

7. Remove the wireless card.
8. Remove the heat sink
9. Remove the assembly inner
10. 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.
11. Remove the power-button
12. Remove the LED board.
13. Remove the smart card
14. Remove the Keyboard
15. Remove the display assembly.
16. Remove the palm-rest
About this task
NOTE: For models shipped with WLAN antennas only, the dummy SIM-card slot filler is a separate service part and is not
included with replacement palm rest. As a result, the dummy SIM-card slot filler must be removed and then reinstalled when
replacing the palm-rest assembly.
The following images indicate the dummy SIM-card slot filler and provides a visual representation of the dummy SIM-card slot
filler removal procedure.
Steps
1. Push the dummy SIM-card slot filler from the top side of the palm-rest assembly.
heat sink.
frame.
board.
reader.
assembly.
assembly.
Removing and installing components 91