Table Of Contents - Lenovo YOGA BOOK YB1-X90L Hardware Maintenance Manual

Contents
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 main board ................................................ 17
Important information about replacing
RoHS compliant FRUs ...................................... 18
General checkout ........................................19
What to do first .................................................. 20
Power system checkout .................................... 21
Checking the Tab AC Charger .................. 21
Checking the internal battery status......... 21
Related service information .......................23
Security ............................................................... 23
Power management .......................................... 23
Activating/Deactivating the Display ........ 23
Lenovo YOGA BOOK ..................................24
FRU replacement notices.................................. 25
Screw notices................................................ 25
Removing and replacing an FRU.................... 26
1010 Keyboard Assembly........................... 27
1020 Battery .................................................. 29
1030 D-cover Hinge Stand ......................... 32
1040 A-cover and Hinge............................. 33
1050 Speaker................................................. 36
1060 USB FPC............................................... 39
1070 Sub Board ............................................ 41
1080 Camera................................................. 44
1090 EP FPC ................................................. 45
1100 SK FPC ................................................. 46
1110 PWRK FPC .......................................... 48
1120 Main Board.......................................... 51
Locations ............................................................. 53
Parts list............................................................... 54
Overall ........................................................... 55
AC Adapter .................................................. 58
USB Cable ..................................................... 58
Screw ............................................................. 58
Label .............................................................. 58
Others ............................................................ 59
Notices .........................................................60
Trademarks......................................................... 61
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