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Contents
About this manual. . . . . . . . . . . iii
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . . 2
Safety inspection guide . . . . . . . . . . . . 3
Handling devices that are sensitive to electrostatic
discharge. . . . . . . . . . . . . . . . . . 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
Chapter 2. Important service
information . . . . . . . . . . . . . . 21
Strategy for replacing FRUs . . . . . . . . . 21
Strategy for replacing a hard disk drive . . . 22
Important notice for replacing a system
board . . . . . . . . . . . . . . . . 22
How to use error message . . . . . . . . 22
Strategy for replacing FRUs for CTO, CMV, and
GAV . . . . . . . . . . . . . . . . . . . 22
Product denition. . . . . . . . . . . . 22
FRU identication for CTO, CMV, and GAV
products . . . . . . . . . . . . . . . 23
Chapter 3. General checkout . . . . . 25
What to do rst . . . . . . . . . . . . . . 25
Checkout guide . . . . . . . . . . . . . . 26
Lenovo Solution Center . . . . . . . . . 26
Quick test programs. . . . . . . . . . . 26
UEFI diagnostic program . . . . . . . . . 27
Bootable diagnostic programs. . . . . . . 27
Power system checkout . . . . . . . . . . . 28
Checking the ac power adapter . . . . . . 28
Checking operational charging . . . . . . 29
Checking the battery pack . . . . . . . . 29
Checking the backup battery . . . . . . . 29
Chapter 4. Related service
information . . . . . . . . . . . . . . 31
Restoring the factory contents by using Recovery
Disc Set . . . . . . . . . . . . . . . . . 31
Passwords . . . . . . . . . . . . . . . . 32
Power-on password . . . . . . . . . . . 32
Hard-disk password. . . . . . . . . . . 32
Supervisor password . . . . . . . . . . 33
How to remove the power-on password . . . 33
How to remove the hard-disk password . . . 33
Power management . . . . . . . . . . . . 34
Screen blank mode . . . . . . . . . . . 34
Sleep mode . . . . . . . . . . . . . . 34
Hibernation mode . . . . . . . . . . . 35
Symptom-to-FRU index . . . . . . . . . . . 35
Numeric error codes . . . . . . . . . . 36
Error messages . . . . . . . . . . . . 37
No-beep symptoms . . . . . . . . . . . 37
Beep symptoms . . . . . . . . . . . . 37
LCD-related symptoms . . . . . . . . . 37
Intermittent problems . . . . . . . . . . 38
Undetermined problems . . . . . . . . . 38
Chapter 5. Status indicators . . . . . 41
Chapter 6. Function key
combinations . . . . . . . . . . . . . 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 . . . . . . . . . . 46
Major FRUs and CRUs. . . . . . . . . . 48
LCD FRUs and CRUs . . . . . . . . . . 50
Looking up FRU information . . . . . . . . . 51
Chapter 8. FRU replacement
notices . . . . . . . . . . . . . . . . 53
Screw notices . . . . . . . . . . . . . . . 53
Retaining serial numbers. . . . . . . . . . . 54
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . . . 54
Retaining the UUID . . . . . . . . . . . 55
Reading or writing the ECA information . . . 55
Chapter 9. Removing or replacing a
FRU . . . . . . . . . . . . . . . . . . 57
General guidelines . . . . . . . . . . . . . 57
Before servicing the computer . . . . . . . . 58
Disabling the battery pack in the UEFI BIOS . 58
Removing the SIM card . . . . . . . . . 58
1010 Bottom cover . . . . . . . . . . . . . 58
1020 Battery pack . . . . . . . . . . . . . 60
1030 Hard disk drive or solid-state drive
assembly . . . . . . . . . . . . . . . . . 61
1040 Keyboard . . . . . . . . . . . . . . 63
© Copyright Lenovo 2012
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