Dell Latitude 3490 Owners Manual - Page 3

Contents 1 Working on your computer...8 Safety precautions...8 Standby power...8 Bonding ...8 Electrostatic discharge-ESD protection...8 ESD field service kit ...9 Transporting sensitive components...10 Before working inside your computer...10 After working inside your computer...10 2 Disassembly and reassembly...12 Recommended tools...12 Screw size list...12 SIM tray - optional...13 Removing the SIM tray - WWAN models...13 Installing the SIM tray - WWAN models...14 SD card...14 Removing the SD card...14 Installing the SD card...14 Base Cover...14 Removing the base cover...14 Installing base cover...17 Battery...18 Lithium-ion battery precautions...18 Removing battery...18 Installing the battery...19 WLAN Card...19 Removing the WLAN card...19 Installing the WLAN card...20 WWAN card - optional...20 Removing the WWAN daughterboard...20 Installing the WWAN daughterboard...21 VGA board...21 Removing VGA board...21 Installing VGA board...22 Memory Module...22 Removing the memory module...22 Installing the memory module...23 Power button board...24 Removing power button board...24 Installing power button board...24 Heat sink...25 Removing the heatsink...25 Contents 3