Table Of Contents - Lenovo ideacentre All-In-One 520 Hardware Maintenance Manual

Contents
Chapter 1. About this manual . . . . . . 1
Important Safety Information. . . . . . . . . . . 1
Chapter 2. Safety information . . . . . . 3
General safety . . . . . . . . . . . . . . . . 3
Electrical safety . . . . . . . . . . . . . . . . 3
Safety inspection guide . . . . . . . . . . . . . 5
Handling electrostatic discharge-sensitive
devices . . . . . . . . . . . . . . . . . . . 5
Grounding requirements . . . . . . . . . . . . 6
Safety notices . . . . . . . . . . . . . . . . 6
Chapter 3. General information . . . . . 9
Specifications . . . . . . . . . . . . . . . . 9
Chapter 4. General Checkout . . . . . 11
Chapter 5. Using the Setup Utility. . . 13
Starting the Lenovo BIOS Setup Utility program . .
Viewing and changing settings . . . . . . . . .
Using passwords . . . . . . . . . . . . . .
Enabling or disabling a device . . . . . . . . .
Selecting a startup device . . . . . . . . . . .
Exiting the Lenovo BIOS Setup Utility program. . .
Chapter 6. Symptom-to-FRU
Index . . . . . . . . . . . . . . . . . . 19
Hard disk drive boot error . . . . . . . . . . .
Power Supply Problems . . . . . . . . . . .
POST error codes . . . . . . . . . . . . . .
Undetermined problems . . . . . . . . . . .
© Copyright Lenovo 2018
Chapter 7. Locating connectors, controls
and components . . . . . . . . . . . . 21
Chapter 8. Replacing hardware . . . . 31
General information . . . . . . . . . . . . .
Replacing the keyboard and mouse . . . . . . .
Replacing the adapter . . . . . . . . . . . .
Removing the stand base . . . . . . . . . . .
Replacing the optical drive . . . . . . . . . .
Removing the rear cover . . . . . . . . . . .
Removing the motherboard frame. . . . . . . .
Replacing the camera . . . . . . . . . . . .
Replacing the heat-sink. . . . . . . . . . . .
Replacing the hard disk drive . . . . . . . . .
Removing the stand holder . . . . . . . . . .
Replacing the system fan . . . . . . . . . . .
Replacing the memory module . . . . . . . . .
Replacing the solid state drive . . . . . . . . .
13
Replacing the Wi-Fi card . . . . . . . . . . .
13
Replacing the side USB board . . . . . . . . .
13
Replacing the CPU . . . . . . . . . . . . .
15
Replacing the motherboard . . . . . . . . . .
16
Replacing the speaker system . . . . . . . . .
17
Replacing the Microphone module . . . . . . .
Replacing the power switch module . . . . . . .
Replacing the LCD panel module . . . . . . . .
19
Chapter 9. General information . . . . 61
19
Additional Service Information . . . . . . . . .
20
20
31
32
32
32
33
35
39
40
42
43
44
45
46
47
48
49
50
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57
61
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