Lenovo 20GB Manuals

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

Lenovo 20GB Hardware Maintenance Manual

Lenovo 20GB Hardware Maintenance Manual (74 pages)

Brand: Lenovo | Category: Laptop | Size: 14.91 MB

Table of Contents

Table of Contents
2
About this Manual
4
Chapter 1. Safety Information

5
Chapter 2. Important Service Information

10
Chapter 3. General Checkout

13
- What to Do First
  13
- Checkout Guide
  14
- Lenovo Solution Center
  14
- Quick Test Programs
  14
- UEFI Diagnostic Program
  15
- Bootable Diagnostic Programs
  15
- Power System Checkout
  16
- Checking the Ac Power Adapter
  16
- Checking the Battery and Operational Charging
  17
- Checking the Coin-Cell Battery
  17
Chapter 4. Related Service Information

18
- Restoring the Factory Contents by Using the Product Recovery Disc Set
  18
- Recovery Overview for the Windows 10 Operating System
  19
- Resetting Your Computer
  19
- Using Advanced Startup Options
  19
- Recovering Your Operating System if Windows 10 Fails to Start
  19
- Creating and Using a Recovery USB Drive
  20
- Passwords
  20
- Power-On Password
  20
- Hard Disk Password
  21
- Supervisor Password
  21
- How to Remove the Power-On Password
  21
- How to Remove the Hard Disk Password
  22
- Power Management
  22
- Screen Blank Mode (for the Windows 7 Operating System Only)
  22
- Sleep Mode
  22
- Hibernation Mode
  23
- Symptom-To-FRU Index
  23
- Numeric Error Codes
  24
- Error Messages
  25
- Beep Symptoms
  25
- LCD-Related Symptoms
  26
- Intermittent Problems
  26
- Undetermined Problems
  27
Chapter 5. Locations

28
- Locating Computer Controls, Connectors, and Indicators
  28
- Front View
  28
- Left-Side View
  30
- Bottom View
  31
- Locating Frus and Crus
  31
- Major Frus
  32
- LCD Frus
  34
- Miscellaneous Parts and Other Frus
  36
- Connector and Cable Guide
  36
Chapter 6. FRU Replacement Notices

40
Chapter 7. Removing or Replacing a FRU

44
Appendix A. Notices

73
- Electronic Emissions Notices
  74
- Trademarks
  74

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