Table Of Contents - Lenovo Chromebook 300e Chromebook Hardware Maintenance Manual

Contents
Chapter 1. Safety information ...................1
General safety ..................................................................1
Electrical safety................................................................1
Safety inspection guide ...................................................2
Handling devices that are sensitive to electrostatic
discharge .........................................................................3
Grounding requirements ..................................................4
Safety notices (multilingual translations)..........................4
Chapter 2. Important service
information................................................19
Overview of the Chromebook USB repair shim.............19
Creating the repair shim..........................................19
Removing and reinstalling the write-protect
screw.......................................................................19
Using the repair shim ..............................................20
Factory test items ...................................................21
Chapter 3. General checkout ..................23
What to do first ..............................................................23
Checking the ac power adapter.....................................24
Chapter 4. Idetifying FRUs (CRUs) .........25
All FRUs (CRUs) for Lenovo 300e Chromebook............25
© Copyright Lenovo 2017
Chapter 5. Removing a FRU or CRU ......29
General guidelines..........................................................29
Hardware identity ...........................................................29
Prerequisite for replacing a FRU ....................................29
Remove the upper case (with keyboard) .......................30
Remove the battery pack ...............................................31
Remove the speakers ....................................................32
Remove the LCD module ...............................................32
Remove the system board, USB board and touch pad
module ...........................................................................33
Disassemble the LCD module........................................35
Remove the LCD bezel............................................35
Remove the LCD panel ...........................................37
Remove the camera assembly or the LCD &
camera cable...........................................................38
Remove the hinges..................................................39
Appendix A. Features, controls, and
connectors................................................41
Appendix B. Lenovo part numbers for
replacement FRUs ...................................43
Appendix C. Lenovo part numbers for
CRUs and miscellaneous parts ..............45
Appendix D. Label locations ...................47
Trademarks ..................................................................xlvii
iii