I/O Daughter Board; Removing The I/O Daughter Board - Dell Latitude 9420 Service Manual

Next steps
1. Install the battery.
2. Install the WWAN card.
3. Install the base cover.
4. Install the SIM card tray.
5. Install the SD card.
6. Follow the procedure in
NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in
computer.

I/O daughter board

Removing the I/O daughter board

Prerequisites
1. Follow the procedure in
NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in
computer.
2. Remove the SD card.
3. Remove the SIM card
4. Remove the base cover.
5. Remove the heat sink.
6. Remove the display assembly.
About this task
The following image indicates the location of the I/O board and provides a visual representation of the removal procedure.
44 Removing and installing components
After working inside your
Before working inside your
tray.
computer.
computer.
Before working inside your
Before working inside your