Lenovo 42862AU Manuals

Manuals and User Guides for Lenovo 42862AU. We have 1 Lenovo 42862AU manual available for free PDF download: Hardware Maintenance Manual

Lenovo 42862AU Hardware Maintenance Manual

Lenovo 42862AU Hardware Maintenance Manual (144 pages)

Lenovo ThinkPad X220 4287: Reference Guide

Brand: Lenovo | Category: Laptop | Size: 14.19 MB

Table of Contents

Table of Contents
3
About this Manual

5
Chapter 1. Safety Information

7
Chapter 2. Important Service Information

29
- Strategy for Replacing Frus
  29
- Strategy for Replacing Frus for CTO, CMV, and GAV
  30
  - Product Definition
    30
  - FRU Identification for CTO, CMV, and GAV Products
    31
Chapter 3. General Checkout

33
- What to Do First
  33
- Checkout Guide
  34
  - Diagnostics Using PC-Doctor for DOS
    34
  - Testing the Computer
    35
  - Lenovo Thinkvantage Toolbox
    37
  - PC-Doctor for Windows
    37
  - PC-Doctor for Rescue and Recovery
    37
  - FRU Tests
    37
- Power System Checkout
  39
Chapter 4. Related Service Information

43
- Restoring the Factory Contents by Using Product Recovery Discs
  43
- Restoring the Factory Contents by Using Recovery Disc Set
  43
- Passwords
  45
  - Power-On Password
    45
  - Hard-Disk Password
    45
  - Supervisor Password
    45
  - How to Remove the Power-On Password
    45
  - How to Remove the Hard-Disk Password
    46
- Power Management
  46
  - Screen Blank Mode
    46
  - Sleep (Standby) Mode
    47
  - Hibernation Mode
    47
- Symptom-To-FRU Index
  48
  - Numeric Error Codes
    49
  - Error Messages
    53
  - Beep Symptoms
    54
  - No-Beep Symptoms
    55
  - LCD-Related Symptoms
    55
  - Intermittent Problems
    55
  - Undetermined Problems
    56
Chapter 5. Status Indicators

57
Chapter 6. Fn Key Combinations

59
Chapter 7. FRU Replacement Notices

63
- Screw Notices
  63
- Retaining Serial Numbers
  64
Chapter 8. Removing and Replacing a FRU

67
Chapter 9. Locations

105
- Front View
  106
- Rear View
  107
- Bottom View
  108
Chapter 10. Parts List

115
- Overall
  116
- LCD Frus
  126
  - 12.5-In. HD LED Backlight LCD
    127
  - 12.5-In. HD LED Backlight Premium LCD
    129
- Keyboard
  129
- Miscellaneous Parts
  131
- AC Adapters
  131
- Power Cords
  131
- Recovery Discs
  132
- Common Service Tools
  138
Appendix A. Notices

141
- Electronic Emissions Notices
  142
- Trademarks
  142

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