Table Of Contents - Lenovo ThinkPad L13 Yoga Gen 4 Hardware Maintenance Manual
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Also See for ThinkPad L13 Yoga Gen 4:
- User manual (64 pages) ,
- User manual (70 pages) ,
- Manual (10 pages)
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Contents
About this manual . . . . . . . . . . . . iii
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . . . 3
discharge . . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
information . . . . . . . . . . . . . . . 21
Strategy for replacing FRUs . . . . . . . . . .
How to use error message . . . . . . . . .
and standard models. . . . . . . . . . . . .
Product definition . . . . . . . . . . . .
FRU identification . . . . . . . . . . . .
Chapter 3. General checkout . . . . . 23
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 . . . . . . . . . . . . . . . 29
Reset or restore Windows . . . . . . . . . . .
Passwords. . . . . . . . . . . . . . . . .
Power-on password . . . . . . . . . . .
NVMe passwords . . . . . . . . . . . .
Supervisor password . . . . . . . . . . .
System management password. . . . . . .
How to remove the NVMe password . . . . .
password . . . . . . . . . . . . . . .
Power management . . . . . . . . . . . . .
Sleep mode . . . . . . . . . . . . . .
© Copyright Lenovo 2023
Hibernation mode . . . . . . . . . . . .
Symptom-to-FRU index . . . . . . . . . . .
Numeric error codes . . . . . . . . . . .
Error messages . . . . . . . . . . . . .
Beep errors. . . . . . . . . . . . . . .
No-beep symptoms . . . . . . . . . . .
LCD-related symptoms . . . . . . . . . .
Intermittent problems . . . . . . . . . . .
Chapter 5. Special keys . . . . . . . . 41
Chapter 6. Locations . . . . . . . . . 43
21
21
Front view . . . . . . . . . . . . . . .
22
Side view . . . . . . . . . . . . . . .
Bottom view . . . . . . . . . . . . . .
22
Locating FRUs and CRUs . . . . . . . . . . .
22
Major FRUs and CRUs . . . . . . . . . .
22
LCD FRUs and CRUs . . . . . . . . . . .
Miscellaneous parts . . . . . . . . . . .
Connector and cable guide . . . . . . . .
23
Looking up FRU information . . . . . . . . . .
24
24
25
notices . . . . . . . . . . . . . . . . . 59
25
Service tool kit . . . . . . . . . . . . . . .
25
Screw notices . . . . . . . . . . . . . . .
26
Sensor calibration . . . . . . . . . . . . . .
27
Retaining serial numbers . . . . . . . . . . .
27
unit . . . . . . . . . . . . . . . . . .
27
Retaining the UUID. . . . . . . . . . . .
29
FRU. . . . . . . . . . . . . . . . . . . 65
29
General guidelines. . . . . . . . . . . . . .
29
Before servicing the computer . . . . . . . . .
30
Disabling the built-in battery . . . . . . . .
30
30
card tray . . . . . . . . . . . . . . . .
31
31
S2 Yoga Gen 8 only) . . . . . . . . . . . . .
1020 Base cover assembly . . . . . . . . . .
31
1030 Built-in battery . . . . . . . . . . . . .
32
1040 Keyboard . . . . . . . . . . . . . . .
32
33
33
34
35
35
37
38
39
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39
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43
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48
49
52
55
55
57
59
59
60
61
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62
62
65
65
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66
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i
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