User Manuals: Lenovo 424049U T520 Laptop

Manuals and User Guides for Lenovo 424049U T520 Laptop. We have 2 Lenovo 424049U T520 Laptop manuals available for free PDF download: Hardware Maintenance Manual, Brochure

Lenovo 424049U Hardware Maintenance Manual (178 pages)

Mobile Workstation

Brand: Lenovo | Category: Laptop | Size: 13.11 MB

Table of Contents
5
About this Manual

7
Chapter 1. Safety Information

9
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
- What to Do First
  35
- Checkout Guide
  36
  - Diagnostics Using PC-Doctor for DOS
    36
  - Testing the Computer
    37
  - Lenovo Thinkvantage Toolbox
    38
  - FRU Tests
    39
- Power System Checkout
  40
Chapter 4. Related Service Information

43
- Restoring the Factory Contents by Using Recovery Disc Set
  43
- Passwords
  44
  - Power-On Password
    44
  - Hard-Disk Password
    44
  - Supervisor Password
    45
  - How to Remove the Power-On Password
    45
  - How to Remove the Hard-Disk Password
    45
- Power Management
  46
  - Screen Blank Mode
    46
  - Sleep (Standby) Mode
    46
  - Hibernation Mode
    47
- Symptom-To-FRU Index
  47
  - Numeric Error Codes
    48
  - Error Messages
    49
  - Beep Symptoms
    50
  - No-Beep Symptoms
    51
  - LCD-Related Symptoms
    51
  - Intermittent Problems
    51
  - Undetermined Problems
    52
  - Copyright Lenovo
    53
Chapter 5. Installing and Configuring RAID

53
Chapter 6. Status Indicators

55
Chapter 7. Fn Key Combinations

59
Chapter 8. FRU Replacement Notices

63
- Screw Notices
  63
- Retaining Serial Numbers
  64
Chapter 9. Removing and Replacing a FRU

67
1110 Bluetooth Daughter Card (BDC-3.0)

86
Chapter 10. Locations

113
- Front View
  113
- Rear View
  114
- Bottom View
  115
Chapter 11. Parts List

117
- Overall
  118
- LCD Frus
  159
- Keyboard
  166
- Miscellaneous Parts
  167
- AC Adapters
  168
- Power Cords
  169
- Recovery Discs
  170
- Common Service Tools
  174
Appendix A. Notices

175
- Electronic Emissions Notices
  176
- Trademarks
  176

Lenovo 424049U Brochure (4 pages)

Brochure

Brand: Lenovo | Category: Laptop | Size: 2.33 MB

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User Manuals: Lenovo 424049U T520 Laptop

Lenovo 424049U Hardware Maintenance Manual (178 pages)

Table of Contents

About this Manual

Chapter 1. Safety Information

Chapter 2. Important Service Information

Chapter 3. General Checkout

Chapter 4. Related Service Information

Chapter 5. Installing and Configuring RAID

Chapter 6. Status Indicators

Chapter 7. Fn Key Combinations

Chapter 8. FRU Replacement Notices

Chapter 9. Removing and Replacing a FRU

1110 Bluetooth Daughter Card (BDC-3.0)

Chapter 10. Locations

Chapter 11. Parts List

Appendix A. Notices

Lenovo 424049U Brochure (4 pages)

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