Lenovo 21D6 Manuals

Manuals and User Guides for Lenovo 21D6. We have 1 Lenovo 21D6 manual available for free PDF download: Hardware Maintenance Manual

Lenovo 21D6 Hardware Maintenance Manual

Lenovo 21D6 Hardware Maintenance Manual (116 pages)

Brand: Lenovo | Category: Laptop | Size: 8.45 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
    29
  - Power System Checkout
    30
  - Checking the Ac Power Adapter
    31
  - Checking the Built-In Battery and Operational Charging
    31
  - Checking the Coin-Cell Battery
    31
- Chapter 4. Related Service Information
  
  33
  - Reset or Restore Windows
    33
  - Passwords
    33
  - Power-On Password
    33
  - Nvme Passwords
    34
  - 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
- Beep Errors
  39
- Error Messages
  39
- LCD-Related Symptoms
  41
- No-Beep Symptoms
  41
- Intermittent Problems
  42
- Undetermined Problems
  42
- Chapter 5. RAID
  
  45
- Chapter 6. Special Keys
  
  49
- Chapter 7. Locations
  
  51
  - Locating Computer Controls and Connectors
    51
  - Front View
    51
  - Side View
    52
  - Rear View
    53
  - Bottom View
    53
  - Locating Frus and Crus
    54
  - Major Frus and Crus
    55
  - LCD Frus and Crus
    58
  - Miscellaneous Parts
    60
  - Connector and Cable Guide
    60
  - Looking up FRU Information
    63
- Chapter 8. FRU Replacement Notices
  
  65
  - Service Tool Kit
    65
  - Screw Notices
    65
  - Retaining Serial Numbers
    66
  - Restoring the Serial Number of the System Unit
    66
  - Retaining the UUID
    67
  - Reading or Writing the ECA Information
    67
- Chapter 9. Removing or Replacing a FRU
  
  69
  - General Guidelines
    69
  - Before Servicing the Computer
    69
  - Disabling the Built-In Battery
    69
  - Removing the Nano-SIM Card and Tray (for Selected Models)
    70
  - Removing the SD Card (if Any)
    70
  - 1010 Bottom Cover
    71
  - 1020 Keyboard
    71
  - 1030 Service Bracket
    73
Wireless WAN Card (for Selected Models)

74
I\/O Board and Cable

83
- 1110 I/O Board and Cable
  83
- 1120 Built-In Battery
  84
- 1070 Base Cover Assembly
  85
- 1130 Coin-Cell Battery
  85
- Ensure that the Connector Is Attached Firmly
  85
- For Access, Remove this FRU
  85
- M2 × 8 MM, Flat-Head, Nylon-Coated
  85
- Step Screw (Quantity)
  85
- When Installing
  85
- 1070 Base Cover Assembly
  86
- 1140 NFC Board and Cable (for Selected Models)
  86
- 1150 Keyboard Bezel Assembly
  87
- Removing or Replacing a FRU
  87
- 1160 Power Button with Fingerprint Reader and Bracket
  88
- 1170 Trackpad and Trackpad Cable
  90
- 1180 Smart Card Reader and Cable (for Selected Models)
  91
- 1190 Speaker
  92
- 1200 System Board and Beeper
  93
- 1210 DC-In Cable and Bracket
  96
- 1220 Wireless WAN Antenna Assembly (for Selected Models)
  97
- 1230 Hinge Caps
  98
- 1240 LCD Unit
  98
- 1250 Chassis Assembly
  100
- 2010 LCD Strip Cover (for Touch Models)
  101
- 2020 LCD Bezel (for Non-Touch Models)
  101
- 2030 LCD Panel and LCD Cable
  102
- 2040 LCD Hinges
  106
- 2050 PMIC Board (for Touch Models)
  106
- 2060 Camera-And-Microphone Module and Cable (for Selected Models)
  107
- 2070 Wireless Antenna Assembly
  108
- 2080 LCD Cover Assembly
  110
- Appendix A. Notices
  
  111
- Appendix B. Abbreviation Table
  
  113

Advertisement

Advertisement

Related Products

Lenovo Categories

Laptop

Desktop

Monitor

More Lenovo Manuals