Table Of Contents - Lenovo ThinkPad Helix 20CG Hardware Maintenance Manual
Hide thumbs
Also See for ThinkPad Helix 20CG:
- Setup manual (2 pages) ,
- User manual (136 pages) ,
- Safety, warranty, and setup manual (2 pages)
Table of Contents
Advertisement
Contents
About this manual. . . . . . . . . . .
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . .
Electrical safety . . . . . . . . . . . . . . .
Safety inspection guide . . . . . . . . . . . .
discharge. . . . . . . . . . . . . . . . . .
Grounding requirements . . . . . . . . . . . .
Safety notices (multilingual translations) . . . . . .
information . . . . . . . . . . . . . . 19
Strategy for replacing FRUs . . . . . . . . .
board . . . . . . . . . . . . . . . .
How to use error message . . . . . . . .
model, and standard models . . . . . . . . .
Product definition . . . . . . . . . . . .
FRU identification. . . . . . . . . . . .
Chapter 3. General checkout . . . . . 23
What to do first . . . . . . . . . . . . . .
Checkout guide . . . . . . . . . . . . . .
Lenovo Solution Center . . . . . . . . .
Quick test programs. . . . . . . . . . .
UEFI diagnostic program . . . . . . . . .
Bootable diagnostic programs. . . . . . .
Power system checkout . . . . . . . . . . .
charging . . . . . . . . . . . . . . .
Checking the coin-cell battery . . . . . . .
Checking the ac power adapter . . . . . .
information . . . . . . . . . . . . . . 29
Recovery Disc Set . . . . . . . . . . . . .
Recovery overview . . . . . . . . . . . . .
Refreshing your tablet . . . . . . . . . .
settings. . . . . . . . . . . . . . . .
operating system fails to start . . . . . . .
Passwords . . . . . . . . . . . . . . . .
Power-on password . . . . . . . . . . .
© Copyright Lenovo 2014
iii
Supervisor password . . . . . . . . . .
Hard disk password . . . . . . . . . . .
Symptom-to-FRU index . . . . . . . . . . .
1
Error codes . . . . . . . . . . . . . .
1
Intermittent problems . . . . . . . . . .
3
Undetermined problems . . . . . . . . .
3
Chapter 5. Locations . . . . . . . . . 37
4
4
indicators. . . . . . . . . . . . . . . . .
Locating FRUs and CRUs . . . . . . . . . .
Major FRUs . . . . . . . . . . . . . .
Miscellaneous kits and other parts . . . . .
19
Looking up FRU information . . . . . . . . .
19
20
notices . . . . . . . . . . . . . . . . 43
Screw notices . . . . . . . . . . . . . . .
20
Retaining serial numbers. . . . . . . . . . .
20
20
FRU . . . . . . . . . . . . . . . . . . 45
General guidelines . . . . . . . . . . . . .
23
Before servicing the tablet . . . . . . . . . .
24
Disabling the built-in battery . . . . . . .
24
24
card . . . . . . . . . . . . . . . . .
25
and smart-card-reader cable . . . . . . . . .
25
26
button . . . . . . . . . . . . . . . . . .
26
1030 Built-in battery . . . . . . . . . . . .
27
1040 Wireless WAN card. . . . . . . . . . .
27
mylar . . . . . . . . . . . . . . . . . .
1060 Fingerprint-reader module . . . . . . . .
1070 LCD cable . . . . . . . . . . . . . .
1080 Digitizer cable. . . . . . . . . . . . .
29
1090 Coin-cell battery . . . . . . . . . . . .
30
1100 NFC card and NFC-card cable . . . . . .
30
front-facing-camera-module cable . . . . . . .
30
31
1130 Thermal module . . . . . . . . . . . .
1140 USB-connector bracket . . . . . . . . .
31
31
1160 I/O card and I/O-card cable . . . . . . .
32
1170 System board . . . . . . . . . . . . .
32
. . . . . . . . . . . . . .
33
33
33
34
35
35
37
38
39
40
41
43
44
45
46
46
46
48
52
53
54
56
57
58
59
60
61
63
64
65
67
68
69
71
i
Hide quick links:
Advertisement
Table of Contents
