Lenovo 3254ACU, Руководство по техническому обслуживанию аппаратной части

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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
Laser compliance statement (multilingual
translations) . . . . . . . . . . . . . . . .
17
Chapter 2. Important service
information . . . . . . . . . . . . . .
23
Strategy for replacing FRUs . . . . . . . . . 23
Strategy for replacing a hard disk drive . . . 24
Important notice for replacing a system
board . . . . . . . . . . . . . . . .
24
How to use error codes . . . . . . . . . 24
Strategy for replacing FRUs for CTO, CMV, and
GAV products . . . . . . . . . . . . . . .
24
Product definition . . . . . . . . . . . . 24
FRU identification for CTO, CMV, and GAV
products . . . . . . . . . . . . . . .
25
Chapter 3. General checkout . . . . . 27
What to do first . . . . . . . . . . . . . . 27
Checkout guide . . . . . . . . . . . . . . 28
Lenovo Solution Center . . . . . . . . . 28
Quick test programs. . . . . . . . . . . 28
UEFI diagnostic program . . . . . . . . . 29
Bootable diagnostic programs. . . . . . . 29
Power system checkout . . . . . . . . . . . 30
Checking the ac power adapter . . . . . . 30
Checking operational charging . . . . . . 31
Checking the battery pack . . . . . . . . 31
Checking the backup battery . . . . . . . 32
Chapter 4. Related service
information . . . . . . . . . . . . . .
33
Restoring the factory contents by using the
Recovery Disc Set . . . . . . . . . . . . .
33
Using the Windows recovery programs on the
Windows 8 operating system . . . . . . . . .
34
Passwords . . . . . . . . . . . . . . . . 35
Power-on password . . . . . . . . . . . 35
Hard disk password . . . . . . . . . . . 35
Supervisor password . . . . . . . . . . 36
How to remove the power-on password . . . 36
How to remove the hard disk password . . . 36
Power management . . . . . . . . . . . . 37
Screen blank mode (for the Windows 7
operating system only) . . . . . . . . . .
37
Sleep mode . . . . . . . . . . . . . . 37
Hibernation mode . . . . . . . . . . . 37
Symptom-to-FRU index . . . . . . . . . . . 38
Numeric error codes . . . . . . . . . . 39
Error messages . . . . . . . . . . . . 39
No-beep symptoms . . . . . . . . . . . 40
LCD-related symptoms . . . . . . . . . 40
Intermittent problems . . . . . . . . . . 40
Undetermined problems . . . . . . . . . 41
Chapter 5. Status indicators . . . . . 43
Chapter 6. Special keys . . . . . . . . 45
Chapter 7. Locations . . . . . . . . . 47
Locating computer controls, connectors, and
indicators. . . . . . . . . . . . . . . . .
47
Front view. . . . . . . . . . . . . . . 47
Rear view . . . . . . . . . . . . . . . 48
Bottom view . . . . . . . . . . . . . . 48
Locating FRUs and CRUs . . . . . . . . . . 48
Major FRUs and CRUs. . . . . . . . . . 50
LCD FRUs and CRUs . . . . . . . . . . 52
Looking up FRU information . . . . . . . . . 53
Chapter 8. FRU replacement
notices . . . . . . . . . . . . . . . .
55
Screw notices . . . . . . . . . . . . . . . 55
Retaining serial numbers. . . . . . . . . . . 56
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . . .
56
Retaining the UUID . . . . . . . . . . . 57
Reading or writing the ECA information . . . 57
Chapter 9. Removing or replacing a
FRU . . . . . . . . . . . . . . . . . .
59
General guidelines . . . . . . . . . . . . . 59
Before servicing ThinkPad Edge E430 and E430c
models. . . . . . . . . . . . . . . . . .
60
1010 Battery pack . . . . . . . . . . . . . 60
1020 Large bottom cover . . . . . . . . . . 61
1030 Small bottom cover . . . . . . . . . . 62
1040 Optical drive or blank bezel . . . . . . . 62
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