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IdeaPad 4G
Lenovo IdeaPad 4G User Manual
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Chapter
3.
Identifying FRUs
(CRUs)
Locate
FRUs
and
CRUs
The
exploded
illustrations
help
Lenovo
service
technicians
identify
FRUs
or
CRUs
that they
may
need
to
replace
when
servicing
a
customer’s
computer.
Figure 1.
IdeaPad 4G
(14
″
,
05),
IdeaPad
14m
4G
2021
and IdeaPad
14m 4G
2021
DM
exploded
view
© Copyright
Lenovo 2020
23
28
30
Table of Contents
Default Chapter
3
Table of Contents
3
About this Manual
5
Chapter 1. Safety Information
7
General Safety
7
Electrical Safety
7
Safety Inspection Guide
8
Handling Devices that Are Sensitive to Electrostatic Discharge
9
Grounding Requirements
10
Safety Notices (Multilingual Translations)
10
Chapter 2. General Checkout
27
What to Do First
27
CRU List
28
Chapter 3. Identifying Frus (Crus)
29
Locate Frus and Crus
29
Chapter 4. Removing a FRU or CRU
35
Service Tools
35
General Guidelines
35
Remove the SIM Card Tray
36
Remove the Lower Case
36
Remove the Battery Pack
37
Remove the Speakers
38
Remove the Thermal Module
39
Remove the Solid-State Drive (SSD) Module
39
Remove the USB Board
41
Remove the Antenna Bracket
42
Remove the Rubber Foot
43
Remove the 5G Module
44
Remove the System Board
45
Remove the USB Board Cable
47
Remove the Function Board Cable (Left)
48
Remove the Function Board Cable (Right)
48
Remove the LCD Module
49
Remove the Upper Case (with Keyboard and Touchpad)
50
Disassemble the LCD Module
51
Remove the LCD Bezel
51
Remove the Hinge Cover
51
Remove the Hinges
52
Remove the LCD Panel
53
Remove the Camera Rubbers
54
Remove the Microphone Rubbers
54
Remove the Camera
55
Remove the EDP Cable
56
Remove the LCD Cover
56
Appendix A. Label Locations
59
Trademarks
61
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Lenovo IdeaPad 4G Specifications
General
Brand
Lenovo
Model
IdeaPad 4G
Category
Laptop
Language
English
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