Lenovo 21KV0027GE-CAMPUS Manuals

Manuals and User Guides for Lenovo 21KV0027GE-CAMPUS. We have 1 Lenovo 21KV0027GE-CAMPUS manual available for free PDF download: Hardware Maintenance Manual

Lenovo 21KV0027GE-CAMPUS Hardware Maintenance Manual

Lenovo 21KV0027GE-CAMPUS Hardware Maintenance Manual (102 pages)

Brand: Lenovo | Category: Laptop | Size: 47.22 MB

Table of Contents

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

7
Chapter 2. Important Service Information

25
Chapter 3. General Checkout

27
- What to Do First
  27
- Checkout Guide
  28
- Diagnosing Problems
  28
- Quick Test Programs
  29
- UEFI Diagnostic Program
  29
- Bootable Diagnostic Programs
  30
- Power System Checkout
  30
- Checking the Ac Power Adapter
  31
- Checking the Built-In Battery and Operational Charging
  31
- Checking the Coin-Cell Battery
  32
Chapter 4. Related Service Information

33
- Reset or Restore Windows
  33
- Use Lenovo Recovery Options
  33
- Use Window Recovery Options
  33
- Passwords
  33
- Power-On Password
  33
- Nvme Passwords
  33
- Supervisor Password
  34
- System Management Password
  34
- How to Remove the Power-On Password
  35
- How to Remove the Nvme Password
  35
- How to Remove the System Management Password
  35
- Power Management
  36
- Sleep Mode
  36
- Hibernation Mode
  37
- Symptom-To-FRU Index
  37
- Numeric Error Codes
  38
- Error Messages
  39
- Battery-Charge LED Indicator Diagnosis
  39
- Beep Symptoms
  41
- LCD-Related Symptoms
  42
- Intermittent Problems
  43
- Undetermined Problems
  43
Chapter 5. RAID

45
Chapter 6. Use the Keyboard Shortcuts

49
Chapter 7. Locations

51
- Locating Computer Controls and Connectors
  51
- Front View
  51
- Side View
  53
- Bottom View
  54
- Locating Frus and Crus
  55
- Major Frus and Crus
  56
- Miscellaneous Parts
  58
- Connector and Cable Guide
  58
- Looking up FRU Information
  60
Chapter 8. FRU Replacement Notices

61
- Service Tool Kit
  61
- Screw Notices
  61
- Retaining Serial Numbers
  62
- Restoring the Serial Number of the System Unit
  62
- Retaining the UUID
  63
- Reading or Writing the ECA Information
  64
Chapter 9. Removing or Replacing a FRU

65
- General Guidelines
  65
- Before Servicing the Computer
  65
- Disabling Fast Startup and the Built-In Battery
  65
- Removing the SD Card
  66
- Base Cover Assembly
  66
- Applying Labels to the Base Cover Assembly
  67
- M.2 Solid-State Drive and M.2 Solid-State-Drive Bracket
  68
- Speaker Assembly
  71
- CAMM2 Top Cover
  71
- CAMM2 Memory Module
  74
- CAMM2 Connector
  76
- Power-Button-With-Fingerprint-Reader Cable
  78
- Built-In Battery
  79
- Thermal Fan Assembly
  80
- For Models with Hybrid Graphics
  80
- For Models with UMA Graphics
  81
- NFC Card and NFC Card Cable (for Selected Models)
  82
- Coin-Cell Battery
  83
- DC-In Bracket
  84
- LCD Unit
  85
- System Board
  86
- Replace the System Board
  87
- Combined System Board Assembly (for RTX Models Only)
  89
- Replace the System Board
  90
- System Board Bracket
  92
- Power Button with Fingerprint Reader Assembly
  92
- Haptic Touchpad and Haptic Touchpad Cable
  93
- Keyboard Assembly
  96
Appendix A. Notices

97
Appendix B. Abbreviation Table

99

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