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ThinkCentre M72z
Hardware Maintenance Manual
Lenovo ThinkCentre M72z - Hardware Maintenance Manual
126 pages
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ThinkCentr
e
Har
dwar
e
Maint
enance
Manual
Machine
T
ypes:
3512,
3528,
3533,
3535,
3536,
3537,
3538,
3539,
3543,
3548,
3549,
3553,
3554,
3556,
3558,
and
3559.
2
Table of Contents
Main Page
Default Chapter
5
Table of Contents
5
Chapter 1. About this Manual
7
Important Safety Information
7
Chapter 2. Safety Information
9
General Safety
9
Electrical Safety
9
Safety Inspection Guide
11
Handling Electrostatic Discharge-Sensitive Devices
11
Grounding Requirements
12
Safety Notices (Multi-Lingual Translations)
12
Chapter 3. General Information
35
Specifications
35
Lenovo Thinkvantage Tools
35
Lenovo Welcome
36
Lenovo Solution Center
36
Simpletap
36
Additional Information Resources
37
Chapter 4. General Checkout
39
Problem Determination Tips
39
Chapter 5. Troubleshooting and Diagnostics
41
Basic Troubleshooting
41
Troubleshooting Procedure
42
Troubleshooting
43
Audio Problems
43
CD Problems
44
DVD Problems
45
Intermittent Problems
47
Keyboard, Mouse, or Pointing Device Problems
47
The Fingerprint Reader Does Not Work
48
The Wireless Keyboard Does Not Work
48
Monitor Problems
49
Networking Problems
50
A Wireless Lan Problem
52
A Wireless Wan Problem
52
Option Problems
53
Performance and Lockup Problems
54
Printer Problems
55
Serial Port Problems
55
Software Problems
56
USB Problems
57
Diagnostics
57
Lenovo Solution Center
57
Chapter 6. Using the Setup Utility Program
59
Starting the Setup Utility Program
59
Copyright Lenovo 2012
59
Viewing and Changing Settings
59
Using Passwords
59
Password Considerations
60
Power-On Password
60
Administrator Password
60
Hard Disk Password
60
Setting, Changing, and Deleting a Password
60
Enabling or Disabling a Device
61
Selecting a Startup Device
61
Selecting a Temporary Startup Device
61
Selecting or Changing the Startup Device Sequence
61
Exiting the Setup Utility Program
62
Chapter 7. Symptom-To-FRU Index
63
Hard Disk Drive Boot Error
63
Power Supply Problems
63
Beep Symptoms
63
POST Error Codes
64
Miscellaneous Error Conditions
65
Undetermined Problems
66
Chapter 8. Locations
69
Locating Connectors, Controls, and Indicators on the Front of Your Computer
69
Locating Connectors on the Rear of Your Computer
70
Locating Major Frus and Crus
72
Looking up FRU Information
75
System Board Parts and Connectors
76
Chapter 9. Replacing Frus
77
Removing and Reinstalling the System Stand Hinge Cover
77
Removing and Reinstalling the System Stand
79
Removing and Reinstalling the Monitor Stand
81
Removing and Reinstalling the Frame Stand
82
Removing the Computer Cover
85
Replacing the Hard Disk Drive
85
Replacing the Optical Drive
88
Removing the VESA Mount Bracket
89
Replacing the Rear I/O Assembly
90
Removing and Reinstalling the System Board Shield
92
Replacing the Power Supply
93
Replacing the Microprocessor Fan
94
Replacing the Heat Sink Assembly
95
Replacing the Microprocessor
97
Replacing the Card Reader
100
Opening the System Board Shield Window
101
Replacing the Battery
102
Replacing the Inverter
103
Installing or Replacing a Memory Module
104
Replacing the Internal Speakers
106
Replacing the Integrated Camera
107
Replacing the System Board
108
Replacing the LCD Panel
110
Replacing the WI-FI Card
114
Completing the Parts Replacement
115
Chapter 10. Additional Service Information
117
Security Features
117
Hardware Controlled Passwords
117
Operating System Password
117
Vital Product Data
117
BIOS Levels
117
Flash Update Procedures
117
Updating (Flashing) the BIOS from a Disc
117
Updating (Flashing) the BIOS from Your Operating System
118
Recovering from a POST/BIOS Update Failure
118
Power Management
119
Automatic Configuration and Power Interface (ACPI) BIOS
119
Automatic Power-On Features
119
Appendix A. Notices
121
Television Output Notice
122
European Conformance CE Mark
122
Trademarks
122
Index
123
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