iii
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 ....................................
Grounding requirements .................................
Safety notices: multilingual translations.......... 7
Laser compliance statement......................... 14
Important service information ................... 16
Strategy for replacing FRUs ......................... 16
Strategy for replacing a hard disk drive ............17
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 AC adapter .................................21
Checking operational charging .........................22
Checking the battery pack ................................22
Related service information ...................... 23
Restoring the factory contents by using
recovery system ........................................... 23
Restore of factory default .................................23
Passwords .................................................... 24
Power-on password ..........................................24
Hard-disk password ..........................................24
Administrator password ....................................24
Power management ..................................... 25
Putting the computer to sleep or
shutting it down .................................................25
Putting your computer to sleep .........................25
Shutting down the computer .............................25
Lenovo ideapad 720S Touch-15IKB .......... 26
Specifications ............................................... 26
Status indicators ........................................... 28
Fn key combinations/Hotkeys....................... 29
FRU replacement notices ............................. 30
Screw notices ..................................................30
Removing and replacing an FRU ................. 31
1010 Base cover ...............................................32
1020 Battery pack .............................................34
1030 Speaker ...................................................35
1040 Solid state disk ........................................36
1050 DIMM .......................................................37
1060 PCI Express Mini Card for wireless LAN .....38
1070 Fan and heat sink assembly ....................40
1080 IO board ...................................................42
1090 Audio board .............................................44
1100 Fingerprint module ...................................45
1110 System board ............................................ 47
1120 Upper case ...............................................49
1130 LCD unit ...................................................51
microphone board and integrated camera .......55
1150 LCD hinges ..............................................57
Locations ...................................................... 59
Front and right-side view ..................................59
Bottom and left-side view ................................60
Parts list ........................................................ 61
Overall ..............................................................62
LCD FRUs ........................................................
Miscellaneous parts ..........................................67
AC adapters ......................................................67
Screws ..............................................................67
Power cords ......................................................68
Notices......................................................... 71
Trademarks .................................................. 72
