Maintenance and Service Guide

4.
Remove the system board (4).
Reverse this procedure to install the system board.
Antenna modules
Description Spare part number
3G antenna module 747947-001
WiFi antenna module 743045-001
Before removing the antenna modules, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on,
and then shut it down through the operating system.
2.
Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover (see
Back cover on page 37).
5. Remove the battery (see
Battery on page 38).
6. Remove the system board (see
System board on page 43).
46 Chapter 5 Removal and replacement procedures