Installing The Chassis Frame; System Board; Removing The System Board - Dell Precision 3520 Owner's Manual

Installing the chassis frame

1. Place the chassis frame on the computer and tighten the screws M2x5 (2), M2x3 (5).
NOTE: When reinstalling the chassis frame ensure the keyboard cables are NOT under the frame, but run through the
opening in the frame.
2. Connect the speaker, keyboard cable, touchpad cable, pointstick cable and backlight cable(optional).
3. Route the WLAN and WWAN cable.
NOTE: Ensure the coin cell battery cable is properly routed in between the chassis frame and the system board to avoid
damages to the cable.
4. Install the:
a. SSD card
b. battery
c. base cover
d. SIM card module
5. Follow the procedure in

System board

Removing the system board

1. Follow the procedure in
2. Remove the:
a. SIM card module
b. base cover
c. battery
d. WLAN card
After working inside your
Before working inside your
system.
computer.
Disassembly and reassembly 29