User Manuals: Lenovo 20U1 Business Laptop

Manuals and User Guides for Lenovo 20U1 Business Laptop. We have 2 Lenovo 20U1 Business Laptop manuals available for free PDF download: Hardware Maintenance Manual

Lenovo 20U1 Hardware Maintenance Manual (127 pages)

Brand: Lenovo | Category: Laptop | Size: 71 MB

Table of Contents
3
About this Manual
5
Chapter 1. Safety Information

7
Chapter 2. Important Service Information

25
Chapter 3. General Checkout

29
- What to Do First
  29
- Checkout Guide
  30
- Diagnosing Problems
  30
- Quick Test Programs
  31
- UEFI Diagnostic Program
  31
- Bootable Diagnostic Programs
  31
- Power System Checkout
  32
- Checking the Ac Power Adapter
  32
- Checking the Built-In Battery and Operational Charging
  33
- Checking the Coin-Cell Battery
  33
Chapter 4. Related Service Information

35
- Reset or Restore Windows
  35
- Passwords
  35
- Power-On Password
  35
- Hard Disk Password
  35
- Supervisor Password
  36
- System Management Password
  36
- How to Remove the Power-On Password
  36
- How to Remove the Hard Disk Password
  37
- How to Remove the System Management Password
  37
- Power Management
  38
- Sleep Mode
  38
- Hibernation Mode
  39
- Symptom-To-FRU Index
  39
- Numeric Error Codes
  40
- Error Messages
  41
- Beep Errors
  41
- No-Beep Symptoms
  43
- LCD-Related Symptoms
  43
- Intermittent Problems
  44
- Undetermined Problems
  44
Chapter 5. Use the Keyboard Shortcuts

48
Chapter 6. Locations

51
- Locating Computer Controls, Connectors, and Indicators
  51
- Front
  51
- Base
  52
- Left
  53
- Right
  53
- Bottom
  54
- Locating Frus and Crus
  54
- Major Frus and Crus (for L14 Gen 1)
  55
- Major Frus and Crus (for L15 Gen 1)
  58
- LCD Frus
  61
- Miscellaneous Parts
  62
- Connector and Cable Guide
  63
- Looking up FRU Information
  68
Chapter 7. FRU Replacement Notices

69
- Service Tool Kit
  69
- Screw Notices
  69
- Retaining Serial Numbers
  70
- Restoring the Serial Number of the System Unit
  70
- Retaining the UUID
  71
- Reading or Writing the ECA Information
  72
Chapter 8. Removing or Replacing a FRU

73
- General Guidelines
  73
- Before Servicing the Computer
  74
- Disabling the Built-In Battery
  74
- Removing the Nano-SIM Card and Nano-SIM-Card Tray
  74
- Removing the Microsd Card
  74
- 1010 Keyboard
  75
- 1020 Base Cover Assembly
  76
- 1030 Wireless-LAN Card
  78
- 1040 Wireless-WAN Card (for Selected Models)
  78
- 1050 Memory Module
  79
- 1060 I/O Bracket
  80
- 1070 Storage Drive
  81
- 1080 USB and Audio Card Bracket (for L15 Gen 1)
  83
- 1090 USB and Audio Card
  84
- 1100 Speaker Assembly
  85
- 1110 Thermal Fan, Heatsink, and Thermal Fan Assembly
  86
- 1120 Built-In Battery
  88
- 1130 Coin-Cell Battery
  89
- 1140 NFC Cable, NFC Module and NFC Antenna
  90
- 1150 Trackpad Cable and Trackpad
  92
- Step Screw (Quantity)
  93
- 1160 Fingerprint Reader Cable, Bracket and Module
  94
- For Access, Remove These Frus in Order
  94
- 1020 Base Cover Assembly
  94
- 1120 Built-In Battery
  94
- 1170 Power Button Card with Cable
  96
- Color Torque
  97
- 1180 Smart Card Reader,Cable and Bracket
  98
- Black 0.181 Nm (1.85 Kgf-CM)
  99
- 1190 System Board
  101
- 1200 LCD Unit
  106
- 2010 LCD Bezel
  110
- 2020 LCD Panel and LCD Elastic Adhesive Tapes
  111
- 2030 Camera/Microphone Module
  113
- 2040 Camera/Lcd Cable
  114
- 2050 Hinges
  116
- 2060 Wireless Antenna Assembly
  118
Appendix A. Notices

121
Appendix B. Abbreviation Table

123

Lenovo 20U1 Hardware Maintenance Manual (127 pages)

Brand: Lenovo | Category: Laptop | Size: 67 MB

Table of Contents
3
About this Manual
5
Chapter 1. Safety Information

7
Chapter 2. Important Service Information

25
Chapter 3. General Checkout

29
- What to Do First
  29
- Checkout Guide
  30
- Diagnosing Problems
  30
- Quick Test Programs
  31
- UEFI Diagnostic Program
  31
- Bootable Diagnostic Programs
  31
- Power System Checkout
  32
- Checking the Ac Power Adapter
  32
- Checking the Built-In Battery and Operational Charging
  33
- Checking the Coin-Cell Battery
  33
Chapter 4. Related Service Information

35
- Reset or Restore Windows
  35
- Passwords
  35
- Power-On Password
  35
- Hard Disk Password
  35
- Supervisor Password
  36
- System Management Password
  36
- How to Remove the Power-On Password
  36
- How to Remove the Hard Disk Password
  37
- How to Remove the System Management Password
  37
- Power Management
  38
- Sleep Mode
  38
- Hibernation Mode
  39
- Symptom-To-FRU Index
  39
- Numeric Error Codes
  40
- Error Messages
  41
- Beep Errors
  41
- No-Beep Symptoms
  43
- LCD-Related Symptoms
  43
- Intermittent Problems
  44
- Undetermined Problems
  44
Chapter 5. Use the Keyboard Shortcuts

48
Chapter 6. Locations

51
- Locating Computer Controls, Connectors, and Indicators
  51
- Front
  51
- Base
  52
- Left
  53
- Right
  53
- Bottom
  54
- Locating Frus and Crus
  54
- Major Frus and Crus (for L14 Gen 1)
  55
- Major Frus and Crus (for L15 Gen 1)
  58
- LCD Frus
  61
- Miscellaneous Parts
  62
- Connector and Cable Guide
  63
- Looking up FRU Information
  68
Chapter 7. FRU Replacement Notices

69
- Service Tool Kit
  69
- Screw Notices
  69
- Retaining Serial Numbers
  70
- Restoring the Serial Number of the System Unit
  70
- Retaining the UUID
  71
- Reading or Writing the ECA Information
  72
Chapter 8. Removing or Replacing a FRU

73
- General Guidelines
  73
- Before Servicing the Computer
  74
- Disabling the Built-In Battery
  74
- Removing the Nano-SIM Card and Nano-SIM-Card Tray
  74
- Removing the Microsd Card
  74
- 1010 Keyboard
  75
- 1020 Base Cover Assembly
  76
- 1030 Wireless-LAN Card
  78
- 1040 Wireless-WAN Card (for Selected Models)
  78
- 1050 Memory Module
  79
- Screw M2 X L2.5, Black
  79
- 1060 I/O Bracket
  80
- 1070 Storage Drive
  81
- 1080 USB and Audio Card Bracket (for L15 Gen 1)
  83
- Screw M2 X L3, Silver
  83
- Screw M2 X L5, Black
  83
- 1090 USB and Audio Card
  84
- 1100 Speaker Assembly
  85
- Screw M2.5 X L2.5, Black
  85
- 1110 Thermal Fan Assembly
  86
- 1120 Built-In Battery
  88
- 1130 Coin-Cell Battery
  88
- 1140 NFC Cable, NFC Module and NFC Antenna
  89
- 1150 Trackpad Cable and Trackpad
  91
- 1160 Fingerprint Reader Cable, Bracket and Module
  93
- Screw M2.5 X L4.5, Silver
  93
- 1170 Power Button Card with Cable
  96
- 1180 Smart Card Reader,Cable and Bracket
  98
- 1190 System Board
  101
- 1200 LCD Unit
  105
- 2010 LCD Bezel
  109
- 2020 LCD Panel and LCD Elastic Adhesive Tapes
  110
- 2030 Camera/Microphone Module
  112
- 2040 Camera/Lcd Cable
  113
- 2050 Hinges
  115
- 2060 Wireless Antenna Assembly
  117
Appendix A. Notices

121
Appendix B. Abbreviation Table

123

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User Manuals: Lenovo 20U1 Business Laptop

Lenovo 20U1 Hardware Maintenance Manual (127 pages)

Table of Contents

Chapter 1. Safety Information

Chapter 2. Important Service Information

Chapter 3. General Checkout

Chapter 4. Related Service Information

Chapter 5. Use the Keyboard Shortcuts

Chapter 6. Locations

Chapter 7. FRU Replacement Notices

Chapter 8. Removing or Replacing a FRU

Appendix A. Notices

Appendix B. Abbreviation Table

Lenovo 20U1 Hardware Maintenance Manual (127 pages)

Table of Contents

Chapter 1. Safety Information

Chapter 2. Important Service Information

Chapter 3. General Checkout

Chapter 4. Related Service Information

Chapter 5. Use the Keyboard Shortcuts

Chapter 6. Locations

Chapter 7. FRU Replacement Notices

Chapter 8. Removing or Replacing a FRU

Appendix A. Notices

Appendix B. Abbreviation Table

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Lenovo Categories