Lenovo 20XW Manuals

Manuals and User Guides for Lenovo 20XW. We have 1 Lenovo 20XW manual available for free PDF download: Hardware Maintenance Manual

Lenovo 20XW Hardware Maintenance Manual

Lenovo 20XW Hardware Maintenance Manual (99 pages)

Brand: Lenovo | Category: Laptop | Size: 81.81 MB

Table of Contents

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

7
Chapter 2. Important Service Information

27
Chapter 3. General Checkout

31
- What to Do First
  31
- Checkout Guide
  32
- Diagnosing Problems
  32
- Quick Test Programs
  33
- UEFI Diagnostic Program
  33
- Bootable Diagnostic Programs
  33
- Power System Checkout
  34
- Checking the Ac Power Adapter
  35
- Checking the Battery and Operational Charging
  35
- Checking the Coin-Cell Battery
  35
Chapter 4. Related Service Information

37
- Reset or Restore Windows
  37
- Passwords
  37
- Power-On Password
  37
- Nvme Password
  37
- Supervisor Password
  38
- System Management Password
  38
- How to Remove the Power-On Password
  38
- How to Remove the Nvme Password
  39
- How to Remove the System Management Password
  40
- Power Management
  40
- Sleep Mode
  40
- Hibernation Mode
  41
- Symptom-To-FRU Index
  41
- Numeric Error Codes
  42
- Error Messages
  43
- Beep Symptoms
  43
- Beep Symptoms
  45
- LCD-Related Symptoms
  45
- Intermittent Problems
  46
- Undetermined Problems
  46
Chapter 5. Get to Know YOGA Modes

49
Chapter 6. Use the Keyboard Shortcuts

51
Chapter 7. Locations

53
- Locating Computer Controls, Connectors, and Indicators
  53
- Front View
  53
- Side View
  56
- Bottom View
  57
- Locating Frus and Crus
  57
- Major Frus and Crus (for X1 Yoga Gen 6)
  59
- Major Frus and Crus (for X1 Carbon Gen 9)
  61
- Miscellaneous Parts and Other Frus
  63
- Connector and Cable Guide
  63
- Looking up FRU Information
  66
Chapter 8. FRU Replacement Notices

67
- Service Tool Kit
  67
- Screw Notices
  67
- Retaining Serial Numbers
  68
- Restoring the Serial Number of the System Unit
  68
- Retaining the UUID
  69
- Reading or Writing the ECA Information
  70
Chapter 9. Removing or Replacing a FRU

71
Appendix A. Notices

95

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