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Lenovo Manuals
Laptop
20TH
Hardware maintenance manual
Lenovo 20TH Hardware Maintenance Manual
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Contents
Table of Contents
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Table of Contents
Table of Contents
About this Manual
Chapter 1. Safety Information
General Safety
Electrical Safety
Safety Inspection Guide
Handling Devices that Are Sensitive to Electrostatic Discharge
Grounding Requirements
Safety Notices (Multilingual Translations)
Chapter 2. Important Service Information
Strategy for Replacing Frus
Strategy for Replacing an M.2 Solid-State Drive
Important Notice for Replacing a System Board
How to Use Error Message
Strategy for Replacing Frus for CTO, Special-Bid, and Standard Models
Product Definition
FRU Identification
Chapter 3. General Checkout
What to Do First
Checkout Guide
Diagnosing Problems
Quick Test Programs
UEFI Diagnostic Program
Bootable Diagnostic Programs
Power System Checkout
Checking the Ac Power Adapter
Checking the Battery and Operational Charging
Checking the Coin-Cell Battery
Chapter 4. Related Service Information
Reset or Restore Windows
Passwords
Power-On Password
Hard Disk Password
Supervisor Password
System Management Password
How to Remove the Power-On Password
How to Remove the Hard Disk Password
How to Remove the System Management Password
Power Management
Sleep Mode
Hibernation Mode
Symptom-To-FRU Index
Numeric Error Codes
Error Messages
Beep Errors
LCD-Related Symptoms
Intermittent Problems
Undetermined Problems
Chapter 5. Use the Keyboard Shortcuts
Chapter 6. Locations
Computer Controls, Connectors, and Indicators
Front
Base
Left
Right
Bottom
Locating Frus and Crus
Major Frus
LCD Frus
Miscellaneous Parts and Other Frus
Connector and Cable Guide
Looking up FRU Information
Chapter 7. FRU Replacement Notices
Service Tool Kit
Screw Notices
Retaining Serial Numbers
Restoring the Serial Number of the System Unit
Retaining the UUID
Reading or Writing the ECA Information
Chapter 8. Removing or Replacing a FRU
General Guidelines
Before Servicing the Computer
Disabling the Built-In Battery
Removing the Media Card
Removing a Major FRU
1010 Base Cover Assembly
1020 Nano-SIM-Card Tray (for Selected Models)
1030 Wireless WAN Card
1040 Memory Module
1050 Built-In Battery
1060 Thermal Fan Assembly
1070 Speaker Assembly
1080 Coin-Cell Battery
1090 M.2 Solid-State Drive
1100 Proximity Sensor Cable
1110 DC-In Bracket and DC-In Cable
1120 Keyboard Subcard and Keyboard-Subcard Cable
1130 Trackpad and Trackpad Cable
1140 Fingerprint Reader Assembly and Fingerprint Reader Bracket
1150 LCD Unit
1160 System Board and Side USB Connectors
1170 Keyboard Assembly
Removing an LCD FRU for Models Without a Touch Panel
2010 LCD Bezel Sheet, Strip Cover, and Thinkshutter
2020 Hinges
2030 LCD Panel Assembly and LCD Cable
2040 Camera Card
2050 LED Cable
2060 WLAN Antenna Kit and LCD Rear Cover Assembly
Removing an LCD FRU for Models with Touch Panel
3010 Strip Cover
3020 LCD Panel Assembly and LCD Cable
3030 Hinges
3040 Infrared Camera Card and Thinkshutter
3050 Infrared LED Cable
3060 WLAN Antenna Kit and LCD Rear Cover Assembly
Appendix A. Notices
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P1 Gen 3 and X1 Extreme Gen 3
Hardware Maintenance Manual
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This manual is also suitable for:
Thinkpad x1 extreme gen 3
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20tj
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20th000kpb
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