Hardware Maintenance

iii
About this manual........................................iv
Safety information.........................................1
General safety ...................................................... 2
Electrical safety.................................................... 3
Safety inspection guide ...................................... 5
Handling devices that are sensitive to
electrostatic discharge......................................... 6
Grounding requirements ................................... 6
Safety notices: multilingual translations.......... 7
Laser compliance statement............................. 14
Important service information ...................16
Strategy for replacing FRUs............................. 16
Important notice for replacing a system
board ............................................................. 17
Important information about replacing RoHS
compliant FRUs ................................................. 18
General checkout ........................................19
What to do first.................................................. 20
Lenovo TB-8504F/Lenovo TB-8504X.........21
FRU replacement notices.................................. 21
Screw notices................................................ 21
Removing and replacing an FRU.................... 23
1010 Card tray.............................................. 24
1020 Battery cover ....................................... 25
1030 System board frame ........................... 26
1040 Battery pack and main frame ........... 27
1050 Camera, motor and RF cable ............ 30
1060 System board, speaker and
microphone .................................................. 32
Locations............................................................. 35
Lenovo TAB4 8 overview........................... 35
Parts list .............................................................. 36
Overall........................................................... 36
Screws ........................................................... 38
AC adapters ................................................. 38
Label.............................................................. 38
Notices .........................................................39
Trademarks ........................................................ 40
Contents