Lenovo YOGA Tab 3 YT3-850F, Hardware Maintenance Manual

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iii
About this manual........................................iv
Safety information.........................................1
General safety ...................................................... 2
Electrical safety .................................................... 3
Safety inspection guide ...................................... 5
Handling devices that are sensitive to electro-
static 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
Power system checkout .................................... 21
Checking the Computer AC Charger....... 21
Checking the internal battery status......... 22
Related service information .......................23
Security ............................................................... 23
Power management .......................................... 23
Activating/Deactivating the Display ........ 23
Lenovo YT3-850 ..........................................24
Specifications ..................................................... 24
Components location ........................................ 26
Front view .................................................... 26
Rear view ...................................................... 27
Parts list .............................................................. 28
FRUs list........................................................ 28
Screws list ..................................................... 31
FRU replacement notices.................................. 32
Screw notices................................................ 32
Removing and replacing an FRU.................... 33
1010 Rear cover............................................ 34
1020 Left speaker assembly unit (with power
key FPC)........................................................ 37
1030 Rotated camera ................................... 43
1040 Hinge frame latch............................... 49
1050 Right speaker assembly unit (with mi-
crophone and audio jack)........................... 51
1060 Battery pack......................................... 55
1070 LCD FPC.............................................. 61
1080 Vibrator motor .................................... 64
1090 Main board .......................................... 66
1100 USB and Volume key FPC................. 70
1110 Volume key.......................................... 74
1120 Power button ....................................... 76
1130 Main antenna....................................... 77
1140 Diversity antenna (LTE versions only)
81
Notices .........................................................85
Trademarks......................................................... 86
Contents