IBM THINKPAD L460, Hardware Maintenance Manual

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Contents
About this manual. . . . . . . . . . . iii
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . . 2
Handling devices that are sensitive to electrostatic
discharge. . . . . . . . . . . . . . . . . .
3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
Chapter 2. Important service
information . . . . . . . . . . . . . .
19
Strategy for replacing FRUs . . . . . . . . . 19
Strategy for replacing a hard disk drive or a
solid-state drive . . . . . . . . . . . .
19
Important notice for replacing a system
board . . . . . . . . . . . . . . . .
20
How to use error message . . . . . . . . 20
Strategy for replacing FRUs for CTO, special-bid,
and standard models . . . . . . . . . . . .
20
Product definition . . . . . . . . . . . . 20
FRU identification. . . . . . . . . . . . 20
Chapter 3. General checkout . . . . . 23
What to do first . . . . . . . . . . . . . . 23
Checkout guide . . . . . . . . . . . . . . 24
Lenovo Solution Center . . . . . . . . . 24
Quick test programs. . . . . . . . . . . 24
UEFI diagnostic program . . . . . . . . . 25
Bootable diagnostic programs. . . . . . . 25
Power system checkout . . . . . . . . . . . 26
Checking the ac power adapter . . . . . . 27
Checking the external battery pack and the
operational charging
. . . . . . . . . . 27
Checking the coin-cell battery . . . . . . . 28
Chapter 4. Related service
information . . . . . . . . . . . . . .
29
Restoring the factory contents by using the
Recovery Disc Set . . . . . . . . . . . . .
29
Recovery overview for the Windows 10 operating
system . . . . . . . . . . . . . . . . . .
30
Resetting your computer . . . . . . . . . 30
Using advanced startup options . . . . . . 30
Recovering your operating system if Windows
10 fails to start . . . . . . . . . . . . .
31
Creating and using a recovery USB drive . . 31
Passwords . . . . . . . . . . . . . . . . 32
Power-on password . . . . . . . . . . . 32
Hard disk password . . . . . . . . . . . 32
Supervisor password . . . . . . . . . . 32
How to remove the power-on password . . . 32
How to remove the hard disk password . . . 33
Power management . . . . . . . . . . . . 33
Screen blank mode (for the Windows 7
operating system only) . . . . . . . . . .
34
Sleep mode . . . . . . . . . . . . . . 34
Hibernation mode . . . . . . . . . . . 34
Symptom-to-FRU index . . . . . . . . . . . 35
Numeric error codes . . . . . . . . . . 35
Error messages . . . . . . . . . . . . 36
Beep symptoms . . . . . . . . . . . . 37
No-beep symptoms . . . . . . . . . . . 37
LCD-related symptoms . . . . . . . . . 37
Intermittent problems . . . . . . . . . . 38
Undetermined problems . . . . . . . . . 38
Chapter 5. Status indicators . . . . . 41
Chapter 6. Function keys . . . . . . . 43
Chapter 7. Locations . . . . . . . . . 45
Locating computer controls, connectors, and
indicators. . . . . . . . . . . . . . . . .
45
Front view. . . . . . . . . . . . . . . 45
Rear view . . . . . . . . . . . . . . . 46
Bottom view . . . . . . . . . . . . . . 46
Locating FRUs and CRUs . . . . . . . . . . 47
Major FRUs and CRUs. . . . . . . . . . 48
LCD FRUs . . . . . . . . . . . . . . 50
Miscellaneous parts . . . . . . . . . . . 51
Connector and cable guide . . . . . . . . 51
Looking up FRU information . . . . . . . . . 55
Chapter 8. FRU replacement
notices . . . . . . . . . . . . . . . .
57
Screw notices . . . . . . . . . . . . . . . 57
Retaining serial numbers. . . . . . . . . . . 58
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . . .
58
Retaining the UUID . . . . . . . . . . . 59
Reading or writing the ECA information . . . 59
Chapter 9. Removing or replacing a
FRU . . . . . . . . . . . . . . . . . .
61
General guidelines . . . . . . . . . . . . . 61
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