Lenovo 14ARB7, Руководство по техническому обслуживанию аппаратной части

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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 . . . . . . . . . . . . . . . . . . 27
Service tools . . . . . . . . . . . . . . . . 27
General guidelines . . . . . . . . . . . . . . 27
Remove the lower case . . . . . . . . . . . . 28
Remove the battery pack . . . . . . . . . . . 29
Remove the coin-cell battery. . . . . . . . . . 30
Remove the M.2 2280 solid-state drive (for
selected models) . . . . . . . . . . . . . . 31
Remove the M.2 2242 solid-state drive and
bracket (for selected models)
. . . . . . . . . 33
Remove the Wi-Fi card . . . . . . . . . . . . 35
Remove the thermal module . . . . . . . . . . 37
Remove the USB board cable . . . . . . . . . 38
Remove the USB board. . . . . . . . . . . . 39
Remove the speakers . . . . . . . . . . . . 41
Remove the touch pad cable. . . . . . . . . . 42
Remove the fingerprint reader board cable (for
selected models) . . . . . . . . . . . . . . 43
Remove the system board. . . . . . . . . . . 44
Use a Golden Key U1 tool to flash-write key id
information . . . . . . . . . . . . . . . 46
Remove the coin-cell battery holder, power board
and cable . . . . . . . . . . . . . . . . . 46
Remove the upper case (with keyboard) . . . . . 48
Remove the strip covers . . . . . . . . . . . 49
Remove the strip frame . . . . . . . . . . . . 50
Remove the LCD panel . . . . . . . . . . . . 51
Remove the hinges, hinge rubbers, EDP cable and
sensor board cable . . . . . . . . . . . . . 52
Remove the camera board cable . . . . . . . . 54
Remove the microphone rubbers . . . . . . . . 55
Remove the camera board . . . . . . . . . . 56
Remove the sensor board . . . . . . . . . . . 56
Chapter 5. Label locations . . . . . . 59
Trademarks . . . . . . . . . . . . . . . . . lxi
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