Lenovo Chromebook C330, Руководство по техническому обслуживанию аппаратной части

Страница: 3 / 65

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 . . . . . . . . . . . . . . . 21
Chromebook C330/S330— CRU list . . . . . . . 22
Chapter 3. Create and use a USB
repair shim . . . . . . . . . . . . . . . 23
What is a USB repair shim? . . . . . . . . . . 23
Create a repair shim . . . . . . . . . . . . . 23
Boot into Developer Mode. . . . . . . . . . . 23
Disable ROM-write protection . . . . . . . . . 24
Use a USB repair shim to diagnose and fix
problems . . . . . . . . . . . . . . . . . 24
Factory test items . . . . . . . . . . . . 25
Chapter 4. Locating FRUs and
CRUs . . . . . . . . . . . . . . . . . . 27
Main FRUs . . . . . . . . . . . . . . . . 27
LCD FRUs . . . . . . . . . . . . . . . . . 29
Looking up FRU information . . . . . . . . . . 30
Chapter 5. Removing FRUs . . . . . . 31
General guidelines . . . . . . . . . . . . . . 31
Cut off the power supply from the built-in battery
pack . . . . . . . . . . . . . . . . . . . 31
Remove the upper case assembly . . . . . . . 32
Remove the built-in battery pack . . . . . . . . 34
Remove the speakers . . . . . . . . . . . . 35
Remove the power board with cable. . . . . . . 35
Remove the system board. . . . . . . . . . . 36
LCD FRUs for Chromebook C330 . . . . . . . . 38
Remove the LCD module . . . . . . . . . 38
Remove the hinge covers . . . . . . . . . 38
Remove the LCD strip cover . . . . . . . . 40
Remove the LCD panel, LVDS cable, and
camera module . . . . . . . . . . . . . 41
Remove the hinges. . . . . . . . . . . . 43
LCD FRUs for Chromebook S330 . . . . . . . . 44
Remove the LCD module . . . . . . . . . 44
Remove the hinge cover. . . . . . . . . . 44
Remove the LCD bezel frame. . . . . . . . 45
Remove the LCD panel . . . . . . . . . . 45
Remove the LVDS cable and camera
module . . . . . . . . . . . . . . . . 47
Remove the hinges. . . . . . . . . . . . 48
Appendix A. Features, controls, and
connectors . . . . . . . . . . . . . . . 51
Front . . . . . . . . . . . . . . . . . . . 51
Base . . . . . . . . . . . . . . . . . . . 51
Left
. . . . . . . . . . . . . . . . . . . 52
Right . . . . . . . . . . . . . . . . . . . 52
Bottom view . . . . . . . . . . . . . . . . 53
Appendix B. Label locations . . . . . 55
Trademarks . . . . . . . . . . . . . . . . lvii
© Copyright Lenovo 2018
i