Lenovo IdeaPad 3 14ALC6, Hardware Maintenance Manual

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Contents
About this manual . . . . . . . . . . . . iii
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . . . 2
Handling devices that are sensitive to electrostatic
discharge . . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
Chapter 2. General checkout . . . . . 21
What to do first . . . . . . . . . . . . . . . 21
CRU list . . . . . . . . . . . . . . . . . . 22
Chapter 3. Idetifying FRUs (CRUs) . . 23
Locate FRUs and CRUs . . . . . . . . . . . 23
Chapter 4. Removing a FRU or
CRU . . . . . . . . . . . . . . . . . . 31
Service tools . . . . . . . . . . . . . . . . 31
General guidelines . . . . . . . . . . . . . . 31
Remove the lower case . . . . . . . . . . . . 32
For 14–inch models . . . . . . . . . . . 32
For 15–inch and 17–inch models . . . . . . 33
Remove the memory module . . . . . . . . . 33
Remove the memory module shielding . . . . . . 34
Remove the storage drive . . . . . . . . . . . 35
Remove the storage drive bracket
. . . . . . . 37
Remove the battery pack . . . . . . . . . . . 38
Remove the battery pack (with storage
drive) . . . . . . . . . . . . . . . . . 38
Remove the battery pack (no storage drive) . . 39
Remove the solid-state drive. . . . . . . . . . 41
Remove the solid-state drive thermal pad. . . . . 42
Remove the heatsink . . . . . . . . . . . . . 43
For ALC models . . . . . . . . . . . . . 43
For ITL models . . . . . . . . . . . . . 44
Remove the system fan . . . . . . . . . . . . 46
For 14–inch and 15–inch models . . . . . . 46
For 17–inch models . . . . . . . . . . . 48
Remove the Wi-Fi card . . . . . . . . . . . . 49
Remove the USB board. . . . . . . . . . . . 50
For 14–inch models . . . . . . . . . . . 50
For 15–inch models . . . . . . . . . . . 51
For 17–inch models . . . . . . . . . . . 53
Remove the USB board cable . . . . . . . . . 54
Remove the coin-cell battery. . . . . . . . . . 55
Remove the fingerprint reader . . . . . . . . . 56
Remove the system board. . . . . . . . . . . 58
For the 14–inch models . . . . . . . . . . 58
For 15–inch models . . . . . . . . . . . 59
For the 17–inch models . . . . . . . . . . 61
Use a Golden Key U1 tool to flash-write key id
information . . . . . . . . . . . . . . . 64
Remove the upper case . . . . . . . . . . . 64
Remove the LCD bezel . . . . . . . . . . . . 66
Remove the stripe cover . . . . . . . . . . . 66
Remove the hinge . . . . . . . . . . . . . . 67
For 14–inch models . . . . . . . . . . . 67
For the 15–inch models . . . . . . . . . . 68
For 17–inch models . . . . . . . . . . . 70
Remove the LCD panel . . . . . . . . . . . . 71
For 14–inch and 15–inch models . . . . . . 71
For 17–inch models . . . . . . . . . . . 72
Remove the microphone rubber . . . . . . . . 74
Remove the camera . . . . . . . . . . . . . 75
Remove the EDP cable . . . . . . . . . . . . 75
Trademarks . . . . . . . . . . . . . . . . lxxvii
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