Lenovo 21FE0028US Manuals

Manuals and User Guides for Lenovo 21FE0028US. We have 1 Lenovo 21FE0028US manual available for free PDF download: Hardware Maintenance Manual

Lenovo 21FE0028US Hardware Maintenance Manual (108 pages)

Brand: Lenovo | Category: Laptop | Size: 41 MB

Table of Contents
3
About this Manual
5
Chapter 1. Safety Information
7
General Safety
7
Electrical Safety
7
Safety Inspection Guide
9
Handling Devices that Are Sensitive to Electrostatic Discharge
9
Grounding Requirements
10
Safety Notices (Multilingual Translations)
10
Chapter 2. Important Service Information
25
Strategy for Replacing Frus
25
Strategy for Replacing a Solid-State Drive
25
How to Use Error Message
26
Strategy for Replacing Frus for CTO, Special-Bid, and Standard Models
26
Product Definition
26
FRU Identification
26
Chapter 3. General Checkout
27
What to Do First
27
Checkout Guide
28
Diagnosing Problems
28
Quick Test Programs
29
UEFI Diagnostic Program
29
Bootable Diagnostic Programs
30
Power System Checkout
30
Checking the Ac Power Adapter
31
Checking the Built-In Battery and Operational Charging
31
Checking the Coin-Cell Battery
31
Chapter 4. Related Service Information
33
Reset or Restore Windows
33
Passwords
33
Power-On Password
33
Nvme Passwords
33
Supervisor Password
34
System Management Password
34
How to Remove the Power-On Password
35
How to Remove the Nvme Password
35
How to Remove the System Management Password
35
Power Management
36
Sleep Mode
36
Hibernation Mode
36
Symptom-To-FRU Index
37
Numeric Error Codes
38
Error Messages
39
Beep Errors
39
Beep Symptoms
41
LCD-Related Symptoms
41
Intermittent Problems
42
Undetermined Problems
42
Chapter 5. RAID
45
Storage Drive Requirements for RAID Levels
45
Configuring RAID with the Intel RST Configuration Utility
45
Enter the Intel RST Configuration Utility
46
Create RAID Volumes
46
Delete RAID Volumes
46
Reset Storage Drives to Non-RAID
47
Rebuild RAID 1 Volumes
47
Rebuilding RAID 5 Volumes
47
Chapter 6. Special Keys
49
Chapter 7. Locations
51
Locating Computer Controls and Connectors
51
Front
51
Left and Right
52
Rear
53
Bottom
53
Locating Frus and Crus
54
Major Frus and Crus
55
LCD Frus and Crus
57
Miscellaneous Parts
59
Connector and Cable Guide
59
Looking up FRU Information
61
Chapter 8. FRU Replacement Notices
63
Service Tool Kit
63
Screw Notices
63
Retaining Serial Numbers
64
Restoring the Serial Number of the System Unit
64
Retaining the UUID
65
Reading or Writing the ECA Information
65
Chapter 9. Removing or Replacing a FRU
67
General Guidelines
67
Before Servicing the Computer
67
Disabling the Built-In Battery
67
Removing the Nano-SIM-Card and Nano-SIM-Card Tray
68
1010 Keyboard
68
1020 Base Cover Assembly
70
1030 Memory Module
71
1040 M.2 Solid-State Drive, Bracket, and Thermal Pad
72
1050 Built-In Battery
74
1060 Wireless WAN Card (for Selected Models)
75
1070 Thermal Fan Assembly
75
1080 I/O Bracket
77
1090 Coin-Cell Battery
77
1100 Keyboard Bezel Assembly
78
1110 Power Button with Fingerprint Reader and Bracket
79
1120 Trackpad and Trackpad Cable
80
1130 NFC Cable and NFC Board (for Selected Models)
83
1140 Smart Card Reader and Cable (for Selected Models)
84
1150 Speaker Assembly
85
1160 Wireless WAN Antennas (for Selected Models)
86
1170 System Board
88
1180 LCD Hinge Caps
90
1190 LCD Unit
91
1200 Chassis Assembly
93
2010 LCD Bezel
93
2020 LCD Panel and Elastic Adhesive Tapes
94
2030 LCD Hinges
95
2040 Camera-And-Microphone Module and Cable (for Selected Models)
96
2050 Wireless LAN and Wireless WAN MIMO Antenna Assembly (for Selected Models)
98
2060 LCD Cover Assembly
101
Appendix A. Notices
103
Appendix B. Abbreviation Table
105

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Lenovo 21FE0028US Hardware Maintenance Manual (108 pages)

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