Table of Contents
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Contents
About this manual . . . . . . . . . . . . iii
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . . . 2
discharge . . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
information . . . . . . . . . . . . . . . 21
Strategy for replacing FRUs . . . . . . . . . .
drive . . . . . . . . . . . . . . . . .
board . . . . . . . . . . . . . . . . .
How to use error message . . . . . . . . .
and standard models. . . . . . . . . . . . .
Product definition . . . . . . . . . . . .
FRU identification . . . . . . . . . . . .
Chapter 3. General checkout . . . . . 25
What to do first . . . . . . . . . . . . . . .
Checkout guide . . . . . . . . . . . . . . .
Diagnosing problems . . . . . . . . . . .
Quick test programs . . . . . . . . . . .
UEFI diagnostic program . . . . . . . . .
Bootable diagnostic programs . . . . . . .
Power system checkout . . . . . . . . . . .
Checking the ac power adapter . . . . . . .
charging . . . . . . . . . . . . . . . .
Checking the coin-cell battery . . . . . . .
information . . . . . . . . . . . . . . . 31
. . . . . . . . . . . .
operating system . . . . . . . . . . . .
Passwords. . . . . . . . . . . . . . . . .
Power-on password . . . . . . . . . . .
Hard disk password . . . . . . . . . . .
Supervisor password . . . . . . . . . . .
Power management . . . . . . . . . . . . .
© Copyright Lenovo 2018
Sleep mode . . . . . . . . . . . . . .
Hibernation mode . . . . . . . . . . . .
Symptom-to-FRU index . . . . . . . . . . .
Numeric error codes . . . . . . . . . . .
Error messages . . . . . . . . . . . . .
Beep errors. . . . . . . . . . . . . . .
LCD-related symptoms . . . . . . . . . .
Intermittent problems . . . . . . . . . . .
Chapter 5. Special keys . . . . . . . . 43
Chapter 6. Locations . . . . . . . . . 45
21
Front view . . . . . . . . . . . . . . .
21
Left-side view . . . . . . . . . . . . . .
Right-side view . . . . . . . . . . . . .
22
Bottom view . . . . . . . . . . . . . .
22
Locating FRUs and CRUs . . . . . . . . . . .
22
22
LCD FRUs . . . . . . . . . . . . . . .
22
Miscellaneous parts and other FRUs . . . . .
Connector and cable guide . . . . . . . .
25
Looking up FRU information . . . . . . . . . .
26
26
notices . . . . . . . . . . . . . . . . . 57
27
Common service tools . . . . . . . . . . . .
27
Screw notices . . . . . . . . . . . . . . .
27
Retaining serial numbers . . . . . . . . . . .
28
28
unit . . . . . . . . . . . . . . . . . .
Retaining the UUID. . . . . . . . . . . .
29
29
FRU. . . . . . . . . . . . . . . . . . . 61
General guidelines. . . . . . . . . . . . . .
31
Before servicing the computer . . . . . . . . .
31
Removing external devices . . . . . . . .
33
Disabling the built-in battery . . . . . . . .
33
Removing the media card . . . . . . . . .
33
Removing a major FRU . . . . . . . . . . . .
33
34
1020 M.2 solid-state drive . . . . . . . . .
34
35
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35
36
36
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38
39
40
40
45
45
46
46
46
46
48
50
51
54
54
56
57
57
58
58
59
60
61
62
62
62
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62
63
64
65
i
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