Lenovo 50382NU, Hardware Maintenance Manual

Page: 3 / 96

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 . . . . . . . . . . . . . .
19
Strategy for replacing FRUs . . . . . . . . . 19
Strategy for replacing a hard disk drive . . . 20
Important notice for replacing a system
board . . . . . . . . . . . . . . . .
20
How to use error message . . . . . . . . 20
Strategy for replacing FRUs for CTO, CMV, and
GAV . . . . . . . . . . . . . . . . . . .
20
Product definition . . . . . . . . . . . . 20
FRU identification for CTO, CMV, and GAV
products . . . . . . . . . . . . . . .
21
Chapter 3. General checkout . . . . . 23
What to do first . . . . . . . . . . . . . . 23
Checkout guide . . . . . . . . . . . . . . 24
Diagnostics using PC-Doctor for DOS. . . . 24
Lenovo ThinkVantage Toolbox . . . . . . . 26
FRU tests . . . . . . . . . . . . . . . 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 (standby) mode . . . . . . . . . . 34
Hibernation mode . . . . . . . . . . . 35
Symptom-to-FRU index . . . . . . . . . . . 35
Numeric error codes . . . . . . . . . . 36
Error messages . . . . . . . . . . . . 36
No-beep symptoms . . . . . . . . . . . 37
LCD-related symptoms . . . . . . . . . 37
Intermittent problems . . . . . . . . . . 37
Undetermined problems . . . . . . . . . 38
Chapter 5. Status indicators . . . . . 39
Chapter 6. Special keys. . . . . . . . 41
Chapter 7. FRU replacement
notices . . . . . . . . . . . . . . . .
43
Screw notices . . . . . . . . . . . . . . . 43
Retaining serial numbers. . . . . . . . . . . 44
Restoring the serial number of the system
unit . . . . . . . . . . . . . . . . .
44
Retaining the UUID . . . . . . . . . . . 44
Reading or writing the ECA information . . . 45
Chapter 8. Removing and replacing a
FRU . . . . . . . . . . . . . . . . . .
47
Before servicing ThinkPad Edge E220s . . . . . 47
1000 Disabling the battery pack in UEFI BIOS . . 48
1010 Hard disk drive or solid state drive
assembly . . . . . . . . . . . . . . . . .
48
1020 Keyboard . . . . . . . . . . . . . . 50
1030 Top case assembly. . . . . . . . . . . 52
1040 Backup battery . . . . . . . . . . . . 54
1050 Speaker assembly . . . . . . . . . . . 55
1080 Battery pack . . . . . . . . . . . . . 56
1090 DIMM . . . . . . . . . . . . . . . . 57
1100 PCI Express Mini Card for wireless LAN . . 58
1110 PCI Express Mini Card for wireless WAN . . 59
1120 Bluetooth daughter card . . . . . . . . 60
1130 System board assembly and fan assembly . 62
1140 DC-in sub card . . . . . . . . . . . . 65
1150 LCD unit . . . . . . . . . . . . . . . 67
Chapter 9. Locations . . . . . . . . . 71
Front view . . . . . . . . . . . . . . . . 71
Rear view. . . . . . . . . . . . . . . . . 72
Bottom view . . . . . . . . . . . . . . . 72
Chapter 10. Parts list . . . . . . . . . 73
© Copyright Lenovo 2011 i