Lenovo 21BRS10C00 Manuals

Manuals and User Guides for Lenovo 21BRS10C00. We have 1 Lenovo 21BRS10C00 manual available for free PDF download: Hardware Maintenance Manual

Lenovo 21BRS10C00 Hardware Maintenance Manual (118 pages)

Brand: Lenovo | Category: Laptop | Size: 51 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
27
Strategy for Replacing Frus
27
Strategy for Replacing a Solid-State Drive
27
Important Notice for Replacing a System Board
28
How to Use Error Message
28
Strategy for Replacing Frus for CTO, Special-Bid, and Standard Models
28
Product Definition
28
FRU Identification
29
Chapter 3. General Checkout
31
What to Do First
31
Checkout Guide
32
Diagnosing Problems
32
Quick Test Programs
33
UEFI Diagnostic Program
33
Bootable Diagnostic Programs
33
Power System Checkout
34
Checking the Ac Power Adapter
35
Checking the Built-In Battery and Operational Charging
35
Checking the Coin-Cell Battery
35
Chapter 4. Related Service Information
37
Reset or Restore Windows
37
Passwords
37
Power-On Password
37
Nvme Passwords
37
Supervisor Password
38
System Management Password
38
How to Remove the Power-On Password
39
How to Remove the Nvme Password
39
How to Remove the System Management Password
39
Power Management
40
Sleep Mode
40
Hibernation Mode
41
Symptom-To-FRU Index
41
Numeric Error Codes
42
Error Messages
43
Beep Errors
43
No-Beep Symptoms
45
LCD-Related Symptoms
45
Intermittent Problems
46
Undetermined Problems
46
Chapter 5. Special Keys
47
Chapter 6. Locations
49
Locating Computer Controls, Connectors, and Indicators
49
Front
49
Left and Right
50
Rear
52
Bottom
52
Locating Frus and Crus
52
Major Frus and Crus
54
LCD Frus and Crus
58
Miscellaneous Parts
63
Connector and Cable Guide
63
Looking up FRU Information
65
Chapter 7. FRU Replacement Notices
67
Service Tool Kit
67
Screw Notices
67
Retaining Serial Numbers
68
Restoring the Serial Number of the System Unit
68
Retaining the UUID
69
Reading or Writing the ECA Information
69
Chapter 8. Removing or Replacing a FRU
71
General Guidelines
71
Before Servicing the Computer
71
Disabling the Built-In Battery
71
Removing the Nano-SIM-Card and Nano-SIM-Card Tray
72
1010 Keyboard (for Thinkpad X13 Gen 3 Only)
72
1020 Base Cover Assembly
74
1030 M.2 Solid-State Drive, Bracket, and Thermal Pad
76
1040 Wireless WAN Card and Wireless WAN Card Bracket(for Selected Models)
78
1050 Built-In Battery
79
1060 I/O Bracket
81
1070 Thermal Fan Assembly
81
1080 USB-Card Cable and USB Card
82
1090 Speaker Assembly
84
1100 Coin-Cell Battery
84
1110 Smart Card Reader-Trackpad-Nfc Cable (for Selected Models)
85
1120 Trackpad
85
1130 NFC Card
86
1140 Smart Card Reader
87
1150 Power Card and Power Button with or Without Fingerprint Reader
88
1160 Wireless WAN Antennas (for Selected Models)
89
1170 System Board
91
1180 LCD Unit
94
1190 Keyboard Assembly (for Thinkpad T14S Gen 3) or Keyboard Bezel Assembly (for Thinkpad X13 Gen 3)
96
2010 LCD Bezel Sheet and LCD Bezel
96
2020 Camera Shutter
97
2030 LCD Hinges
98
2040 LCD Panel and Elastic Adhesive Tapes
98
2050 LCD Cable
103
2060 Human Presence Detection Module and Cable (for Selected Intel Models)
104
2070 Camera-And-Microphone Module and Cable (for Selected Models)
105
2080 Wireless LAN/WAN Antenna Assembly (for Selected Models)
108
2090 LCD Cover Assembly
112
Appendix A. Notices
113
Appendix B. Abbreviation Table
115

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