Lenovo Flex 3 Owner's manual

IdeaPad Flex 3 Chromebook (11″, 05)
Hardware Maintenance Manual

First Edition (March 2020)
© Copyright Lenovo 2020.

Contents
About this manua . . . . . . . . . . . . iii
Chapter 1. Safety information . . . . . . 1
eneral safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . . . 2
Handling devices that are sensitive to electrostatic
discharge . . . . . . . . . . . . . . . . . . 3
rounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
Chapter 2. Genera checkout . . . . . 21
What to do first . . . . . . . . . . . . . . . 21
CRU list . . . . . . . . . . . . . . . . . . 22
Chapter 3. Idetifying FRUs (CRUs) . . 23
Locate FRU and CRU . . . . . . . . . . . . 23
Chapter 4. Removing a FRU or
CRU . . . . . . . . . . . . . . . . . . 25
Service tools . . . . . . . . . . . . . . . . 25
eneral guidelines. . . . . . . . . . . . . . 25
Remove the lower case . . . . . . . . . . . . 26
Remove the battery pack . . . . . . . . . . . 27
Remove the I/O board with cable . . . . . . . . 28
Remove the WLAN card . . . . . . . . . . . 29
Remove the system board. . . . . . . . . . . 30
Remove the speakers . . . . . . . . . . . . 32
Remove the thermal pad . . . . . . . . . . . 32
Remove the LCD unit . . . . . . . . . . . . 33
Remove the upper case (with keyboard and
touchpad) . . . . . . . . . . . . . . . . . 34
Disassemble the LCD unit . . . . . . . . . . . 34
Remove the strip cover . . . . . . . . . . 34
Remove the hinge rubber . . . . . . . . . 35
Remove the LCD module . . . . . . . . . 35
Remove the camera . . . . . . . . . . . 36
Remove the hinge . . . . . . . . . . . . 37
Remove the LVDS cable. . . . . . . . . . 38
Remove the LCD cover . . . . . . . . . . 38
Appendix A. Labe ocations. . . . . . 41
Trademarks . . . . . . . . . . . . . . . . xliii
© Copyright Lenovo 2020 i

ii IdeaPad Flex 3 Chromebook (11″, 05) Hardware Maintenance Manual

About this manua
This manual contains service and reference information for the following Lenovo products.
Machine Machine type (MT)
IdeaPad Flex 3 CB 11I L05 82BB
Important:
• This manual is intended only for trained service technicians who are familiar with Lenovo products.
• Before servicing a Lenovo product, be sure to read all the information under Chapter 1 “Safety
information” on page 1.
© Copyright Lenovo 2020 iii