Dell Chromebook 3100, Service Manual

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Chapter 1: Working on your computer........................................................................................... 5
Before working inside your computer.............................................................................................................................5
Safety precautions.............................................................................................................................................................. 5
Electrostatic discharge—ESD protection..................................................................................................................... 6
ESD field service kit ...........................................................................................................................................................6
Transporting sensitive components................................................................................................................................ 7
Safety instructions.............................................................................................................................................................. 8
Storing Chromebooks for long term - best practices.................................................................................................8
After working inside your computer................................................................................................................................9
Chapter 2: Removing and installing components.......................................................................... 10
Recommended tools..........................................................................................................................................................10
Screw list............................................................................................................................................................................. 10
Major components of your system ............................................................................................................................... 12
Disassembly and reassembly .......................................................................................................................................... 13
Base cover..................................................................................................................................................................... 13
SIM card......................................................................................................................................................................... 17
WWAN card................................................................................................................................................................... 19
Battery............................................................................................................................................................................ 21
Keyboard ...................................................................................................................................................................... 25
Display assembly.......................................................................................................................................................... 28
Input Output board...................................................................................................................................................... 31
System board................................................................................................................................................................34
Speaker.......................................................................................................................................................................... 40
Display bezel................................................................................................................................................................. 42
Display panel................................................................................................................................................................. 46
Camera...........................................................................................................................................................................50
Display hinges...............................................................................................................................................................52
Display cable................................................................................................................................................................. 55
Display back cover.......................................................................................................................................................57
Palmrest assembly...................................................................................................................................................... 58
Chapter 3: Technology and components.......................................................................................61
USB features.......................................................................................................................................................................61
USB Type-C........................................................................................................................................................................63
Keyboard............................................................................................................................................................................. 64
Keyboard keys function............................................................................................................................................. 65
Touchpad.............................................................................................................................................................................66
Bluetooth............................................................................................................................................................................. 67
Chapter 4: Troubleshooting.........................................................................................................69
Basic troubleshooting.......................................................................................................................................................69
Power issues.................................................................................................................................................................69
CROSH.................................................................................................................................................................................73
Contents
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