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Lenovo 20H1 Manuals
Manuals and User Guides for Lenovo 20H1. We have
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Lenovo 20H1 manual available for free PDF download: Hardware Maintenance Manual
Lenovo 20H1 Hardware Maintenance Manual (104 pages)
Brand:
Lenovo
| Category:
Notebook
| Size: 35.89 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
8
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, a Hybrid Drive, or a Solid-State Drive
27
Important Notice for Replacing a System Board
28
How to Use Error Message
28
Strategy for Replacing Frus for CTO, Special Bid Model, and Standard Models
28
Product Definition
28
FRU Identification
29
Chapter 3. General Checkout
31
What to Do First
31
Checkout Guide
32
Lenovo Companion
32
Quick Test Programs
32
UEFI Diagnostic Program
33
Bootable Diagnostic Programs
34
Power System Checkout
35
Checking the Ac Power Adapter
35
Checking the Built-In Battery and Operational Charging
35
Checking the Coin-Cell Battery
36
Chapter 4. Related Service Information
37
Recovery Information for the Windows 7 Operating System
37
Creating and Using Recovery Media
37
Reinstalling Preinstalled Programs and Device Drivers
38
Restoring the Factory Contents by Using the Recovery Disc Set
39
Recovery Overview for the Windows 10 Operating System
40
Resetting Your Computer
40
Using Advanced Startup Options
40
Recovering Your Operating System if Windows 10 Fails to Start
41
Creating and Using a Recovery USB Drive
41
Passwords
41
Power-On Password
42
Hard Disk Password
42
Supervisor Password
42
How to Remove the Power-On Password
42
How to Remove the Hard Disk Password
43
Power Management
43
Screen Blank Mode (for the Windows 7 Operating System Only)
44
Sleep Mode
44
Hibernation Mode
44
Symptom-To-FRU Index
45
Numeric Error Codes
45
Error Messages
47
Beep Symptoms
47
LCD-Related Symptoms
48
Intermittent Problems
48
Undetermined Problems
48
Chapter 5. Status Indicators
51
Chapter 6. Function Keys
53
Chapter 7. Locations
55
Locating Computer Controls, Connectors, and Indicators
55
Front View
55
Bottom View
56
Rear View
56
Locating Frus and Crus
56
Major Frus
58
LCD Frus
60
Connector and Cable Guide
61
Looking up FRU Information
64
Chapter 8. FRU Replacement Notices
65
Screw Notices
65
Retaining Serial Numbers
66
Restoring the Serial Number of the System Unit
66
Retaining the UUID
67
Chapter 9. Removing or Replacing a FRU
69
General Guidelines
69
Before Servicing the Computer
70
Disconnect the Battery
70
1010 Bottom Cover
71
1020 Internal Storage Drive
72
1030 Memory Module
74
1040 Wireless LAN Card
75
1050 Coin-Cell Battery
75
1060 Keyboard
76
1070 Battery Pack
78
Keyboard Bezel Assembly
79
Step Screw (Quantity)
80
1010 Bottom Cover
81
1020 Internal Storage Drive
81
1030 Memory Module
81
1040 Wireless LAN Card
81
1050 Coin-Cell Battery
81
1060 Keyboard
81
1090 Speaker Assembly
81
1070 Battery Pack
82
1110 System Board and Thermal Fan Assembly
83
Color Torque
86
Silver 0.294 Nm (3.0 Kgf-CM)
86
1120 Base Cover Assembly and LCD Unit
88
2010 LCD Bezel Assembly
90
2020 LCD Panel
90
2030 Hinge Kit
91
2040 Integrated Camera and Microphone Combo Card
94
2050 Thinkpad-Logo-LED Card and LCD Cable Assembly
95
2060 Wireless LAN Antennas Assembly and LCD Rear Cover Assembly
95
Appendix A. Notices
99
Electronic Emissions Notices
100
Trademarks
100
Appendix B. Abbreviation Table
101
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