Lenovo 28425JU Manuals

Manuals and User Guides for Lenovo 28425JU. We have 1 Lenovo 28425JU manual available for free PDF download: Hardware Maintenance Manual

Lenovo 28425JU Hardware Maintenance Manual

Lenovo 28425JU Hardware Maintenance Manual (177 pages)

Hardware Maintenance Manual

Brand: Lenovo | Category: Laptop | Size: 14.33 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
Chapter 4. Related Service Information

45
- Restoring the Factory Contents by Using Product Recovery Discs
  45
- Restoring the Factory Contents by Using Recovery Disc Set
  45
- Passwords
  47
  - Power-On Password
    47
  - Hard-Disk Password
    47
  - Supervisor Password
    47
  - How to Remove the Power-On Password
    47
  - How to Remove the Hard-Disk Password
    48
- Power Management
  49
  - Screen Blank Mode
    49
  - Sleep (Standby) Mode
    49
  - Hibernation Mode
    50
- Symptom-To-FRU Index
  50
  - Numeric Error Codes
    51
  - Error Messages
    52
  - No-Beep Symptoms
    53
  - LCD-Related Symptoms
    53
  - Intermittent Problems
    54
  - Undetermined Problems
    54
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
Step Screw (Quantity)

81
Chapter 9. Locations

117
- Front View
  117
- Rear View
  118
- Bottom View
  119
Chapter 10. Parts List

121
- Overall
  122
- LCD Frus
  148
- Keyboard
  157
- Miscellaneous Parts
  158
- Ac Power Adapters
  160
- Power Cords
  161
- Recovery Discs
  162
- Common Service Tools
  170
Appendix A. Notices

173
- Electronic Emission Notices
  174
- Trademarks
  174

Advertisement

Advertisement

Related Products

Lenovo Categories

Laptop

Desktop

Monitor

More Lenovo Manuals