Table Of Contents - Lenovo Legion Y740 Series Hardware Maintenance Manual

Contents
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 . . . . . . . . . . . . . . .
Checking the ac power adapter
Lenovo Legion Y740 Series CRU list. . . . . . .
Chapter 3. Identifying FRUs
(CRUs) . . . . . . . . . . . . . . . . . 25
All FRUs (CRUs) for Lenovo Legion Y740 Series . .
Miscellaneous parts . . . . . . . . . . . . .
Chapter 4. Removing a FRU or
CRU . . . . . . . . . . . . . . . . . . 33
General guidelines . . . . . . . . . . . . . .
Remove the lower case . . . . . . . . . . . .
© Copyright Lenovo 2018
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Remove the battery pack . . . . . . . . . . .
Remove the M.2 solid-state drive . . . . . . . .
Remove the coin-cell battery. . . . . . . . . .
Remove the storage drive (for selected models) . .
Remove the memory module
Remove the Wi-Fi card . . . . . . . . . . . .
Remove the subwoofer (for Lenovo Legion Y740-
17) . . . . . . . . . . . . . . . . . . . .
Remove the heat sink and fan assembly . . . . .
Remove the speakers . . . . . . . . . . . .
Remove the I/O board . . . . . . . . . . . .
Remove the system board. . . . . . . . . . .
Disassemble the LCD module . . . . . . . . .
Remove the LCD module . . . . . . . . .
Remove the LCD bezel . . . . . . . . . .
Remove the hinges. . . . . . . . . . . .
Remove the LCD panel . . . . . . . . . .
Remove the camera and microphone board . .
Appendix A. Label locations. . . . . . 65
Trademarks . . . . . . . . . . . . . . . . lxvii
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