iii
About this manual .......................................iv
Safety information ........................................1
Generalsafety ..................................................... 2
Electricalsafety ................................................... 3
Safetyinspectionguide ..................................... 5
Handlingdevicesthataresensitivetoelectro‐
staticdischarge ................................................... 6
Groundingrequirements .................................. 6
Safetynotices:multilingualtranslations......... 7
Lasercompliancestatement............................ 14
Important service information ..................16
Strategyforreplac ingFRUs............................ 16
Importantnoticeforreplacingamain
board ............................................................ 17
ImportantinformationaboutreplacingRoHS
compliantFRUs ................................................ 18
General checkout .......................................19
Whattodofirst ................................................. 20
Powersystemcheckout ................................... 21
CheckingtheTabACCharger ................. 21
Checkingtheinternalbatterystatus........ 21
Related service information ......................23
Security .............................................................. 23
Powermanagement ......................................... 23
Activating/DeactivatingtheDisplay ....... 23
Lenovo TAB4 10 .........................................24
FRUreplacementnotices................................. 25
Screwnotices............................................... 25
RemovingandreplacinganFRU ................... 26
1010BackCover.......................................... 27
1020Battery ................................................. 28
1030SubBoard ........................................... 33
1040AntennaSubBoard ........................... 37
1050SideKey ............................................... 39
1060RearCamera....................................... 41
1070Earphone............................................. 42
1080Speaker................................................ 45
1090MainBoard ......................................... 46
1010FrontCamera ..................................... 49
Locations............................................................ 50
Partslist ............................................................. 51
Overall.......................................................... 52
ACAdapter ................................................. 54
USBCable .................................................... 54
Screw ............................................................ 54
Others........................................................... 54
Notices ........................................................56
Trademarks........................................................ 57
Contents