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20VH0022US
Lenovo 20VH0022US Manuals
Manuals and User Guides for Lenovo 20VH0022US. We have
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Lenovo 20VH0022US manual available for free PDF download: Hardware Maintenance Manual
Lenovo 20VH0022US Hardware Maintenance Manual (115 pages)
Brand:
Lenovo
| Category:
Laptop
| Size: 27.2 MB
Table of Contents
Table of Contents
3
About this Manual
5
Chapter 1. Safety Information
7
General Safety
7
Electrical Safety
7
Safety Inspection Guide
9
Handling Devices that Are Sensitive to Electrostatic Discharge
9
Grounding Requirements
10
Safety Notices (Multilingual Translations)
10
Chapter 2. Important Service Information
27
Strategy for Replacing Frus
27
Strategy for Replacing a Hard Disk Drive or a Solid-State Drive
27
Important Notice for Replacing a System Board
28
How to Use Error Codes
28
Strategy for Replacing Frus for CTO, Special-Bid, and Standard Models
28
Product Definition
28
FRU Identification
28
Chapter 3. General Checkout
31
What to Do First
31
Checkout Guide
32
Diagnosing Problems
32
Quick Test Programs
32
UEFI Diagnostic Program
33
Bootable Diagnostic Programs
33
Power System Checkout
34
Checking the Ac Power Adapter
34
Checking Operational Charging
35
Checking the Built-In Battery
35
Checking the Coin-Cell Battery
36
Chapter 4. Related Service Information
37
Recovery Overview for the Windows 10 Operating System
37
Resetting Your Computer
37
Using Advanced Startup Options
37
Recovering Your Operating System if Windows 10 Fails to Start
38
Creating and Using a Recovery USB Drive
38
Passwords
38
Power-On Password
39
Hard Disk Password
39
Supervisor Password
39
System Management Password
39
How to Remove the Power-On Password
40
How to Remove the Hard Disk Password
40
How to Remove the System Management Password
41
Power Management
42
Sleep Mode
42
Hibernation Mode
42
Symptom-To-Fru Index
43
Numeric Error Codes
43
Numeric Error Codes
44
Beep Errors
45
Error Messages
45
LCD-Related Symptoms
47
No-Beep Symptoms
47
Intermittent Problems
48
Undetermined Problems
48
Chapter 5. Use the Keyboard Shortcuts
50
Chapter 6. Locations
53
Locating Computer Controls, Connectors, and Indicators
53
Front
53
Base
54
Left
55
Right
56
Bottom
57
Locating Frus and Crus
58
Major Frus and Crus
59
LCD Frus and Crus
61
Miscellaneous Parts
63
Connector and Cable Guide
64
Looking up FRU Information
66
Chapter 7. FRU Replacement Notices
67
Service Tool Kit
67
Screw Notices
68
Retaining Serial Numbers
68
Restoring the Serial Number of the System Unit
69
Retaining the UUID
69
Chapter 8. Removing or Replacing a FRU
71
General Guidelines
71
Disabling the Built-In Battery
72
1010 Microsd Card
72
1020 Thinkpad Pen Pro (for L13 Yoga Gen 2 and S2 Yoga Gen 6 Only)
73
1030 Keyboard
73
1040 Base Cover Assembly
75
1050 Built-In Battery
76
1060 M.2 Solid-State Drive and Bracket
77
Coin-Cell Battery
79
1020 Thinkpad Pen Pro (for L13 Yoga Gen 2 and S2 Yoga Gen 6 Only)
80
1040 Base Cover Assembly
80
1080 Wireless LAN Card
80
For Access, Remove These Frus in Order
80
Step Screw (Quantity)
80
1050 Built-In Battery
81
1090 Speaker Assembly
81
1100 Smart Card Reader and Smart Card Reader Cable
81
1110 Trackpad and Trackpad Cable
82
1120 Thinkpad Pen Pro Charger with Cable (for L13 Yoga Gen 2 and S2 Yoga Gen 6 Only)
83
Color Torque
83
1130 Wireless LAN Antenna Assembly
84
1140 Fingerprint Reader Bracket/Fingerprint Reader/Fingerprint Reader Cable
85
Black 0.181 Nm (1.85 Kgf-CM)
86
1150 Rear Camera Board with Cable
87
1160 I/O Connectors Brackets
87
1170 LCD Unit
88
Thermal Fan
89
1190 System Board
90
2.5 × 4.5 MM, Wafer-Head, Nylon-Coated
92
Step Screw (Quantity)
92
1200 Keyboard Bezel Assembly
93
2010 LCD Bezel
93
Color
93
LCD Frus for Non-Yoga Models
93
Torque
93
2020 LCD Panel, LCD Cable and Thinkshutter
94
2030 LCD Hinges
95
2040 RGB Camera/Microphone Module with Cable and LCD Rear Cover Assembly
96
Silver
96
3010 Strip Cover and Rubber Caps
98
LCD Frus for Yoga Models
98
3020 Touch Module Assembly, LCD Cable, Hinge Rubber and Thinkshutter
99
3030 LCD Hinges
102
3040 Infrared Camera/Microphone Module with Cable
102
3050 Sensor Board with Cable
104
3060 Thinkpad-Logo-LED Card with Cable
106
3070 LCD Rear Cover Assembly
107
Appendix A. Notices
109
Appendix B. Abbreviation and Acronym Table
111
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