Lenovo ThinkPad L421, ThinkPad L520 Manuals

Manuals and User Guides for Lenovo ThinkPad L421, ThinkPad L520. We have 1 Lenovo ThinkPad L421, ThinkPad L520 manual available for free PDF download: Hardware Maintenance Manual

Lenovo ThinkPad L421, ThinkPad L520 Hardware Maintenance Manual

Lenovo ThinkPad L421, ThinkPad L520 Hardware Maintenance Manual (164 pages)

Hardware Maintenance Manual

Brand: Lenovo | Category: Laptop | Size: 14.92 MB

Table of Contents

Table of Contents
3
About this Manual

5
Chapter 1. Safety Information

7
Chapter 2. Important Service Information

31
- Strategy for Replacing Frus
  31
- Strategy for Replacing Frus for CTO, CMV, and GAV
  32
  - Product Definition
    32
  - FRU Identification for CTO, CMV, and GAV Products
    33
Chapter 3. General Checkout

35
Chapter 4. Related Service Information

45
- Restoring the Factory Contents by Using Recovery Disc Set
  45
- Passwords
  46
  - Power-On Password
    46
  - Hard-Disk Password
    46
  - Supervisor Password
    47
  - How to Remove the Power-On Password
    47
  - How to Remove the Hard-Disk Password
    47
- Power Management
  48
  - Screen Blank Mode
    48
  - Sleep (Standby) Mode
    48
  - Hibernation Mode
    49
- Symptom-To-FRU Index
  49
  - Numeric Error Codes
    50
  - Error Messages
    52
  - No-Beep Symptoms
    52
  - LCD-Related Symptoms
    52
  - Intermittent Problems
    53
  - Undetermined Problems
    53
Chapter 5. Status Indicators

55
Chapter 6. Fn Key Combinations

57
Chapter 7. FRU Replacement Notices

61
- Screw Notices
  61
- Retaining Serial Numbers
  62
Chapter 8. Removing and Replacing a FRU

65
Chapter 9. Locations

117
- Front View
  117
- Rear View
  118
- Bottom View
  118
Chapter 10. Parts List

119
- Overall
  120
- LCD Frus
  143
- Keyboard
  148
- Miscellaneous Parts
  149
- Ac Power Adapters
  151
- Power Cords
  151
- Recovery Discs
  152
- Common Service Tools
  160
Appendix A. Notices

161
- Electronic Emissions Notices
  162
- Trademarks
  162

Advertisement

Advertisement

Related Products

Lenovo Categories

Laptop

Desktop

Monitor

More Lenovo Manuals