Lenovo 74542HU Manuals

Manuals and User Guides for Lenovo 74542HU. We have 2 Lenovo 74542HU manuals available for free PDF download: Hardware Maintenance Manual, Brochure

Lenovo 74542HU Hardware Maintenance Manual (208 pages)

Lenovo Laptop Computer User Manual

Brand: Lenovo | Category: Laptop | Size: 7.1 MB

Table of Contents
5
About this Manual
7
Safety Information
9
General Safety
10
Electrical Safety
11
Safety Inspection Guide
13
Handling Devices that Are Sensitive to Electrostatic Discharge
14
Grounding Requirements
14
Safety Notices: Multilingual Translations
15
Laser Compliance Statement
22
Important Service Information
25
Strategy for Replacing Frus
25
Strategy for Replacing a Hard Disk Drive
26
Important Notice for Replacing a System Board
26
How to Use Error Message
26
Strategy for Replacing Frus for CTO, CMV, and GAV
27
Product Definition
27
FRU Identification for CTO, CMV, and GAV Products
27
Important Information about Replacing Rohs Compliant Frus
29
General Checkout
31
What to Do First
32
Checkout Guide
33
Diagnostics Using PC-Doctor for DOS
34
PC-Doctor for Windows
36
PC-Doctor for Rescue and Recovery
36
Power System Checkout
37
Checking the Ac Adapter
37
Checking Operational Charging
38
Checking the Battery Pack
38
Checking the Backup Battery
39
Related Service Information
41
Restoring the Factory Contents by Using Product Recovery Discs
41
Passwords
42
Power-On Password
42
Hard-Disk Password
42
Supervisor Password
42
How to Remove the Power-On Password
43
How to Remove the Hard-Disk Password
43
Power Management
45
Screen Blank Mode
45
Standby Mode
45
Hibernation Mode
46
Symptom-To-FRU Index
47
Numeric Error Codes
47
Error Messages
51
Beep Symptoms
52
No-Beep Symptoms
52
LCD-Related Symptoms
53
Intermittent Problems
54
Undetermined Problems
54
Copyright Lenovo
55
Thinkpad X200 and X200S
55
Specifications
56
Status Indicators
59
FRU Tests
61
Fn Key Combinations
63
FRU Replacement Notices
66
Screw Notices
66
Retaining Serial Numbers
67
Removing and Replacing a FRU
70
Locations
70
Before Servicing Thinkpad X200 and X200S
71
1010 Battery Pack
72
1020 Hard Disk Drive (HDD) Cover, HDD, and HDD Rubber Rails or Solid State Drive (SSD) and Storage Converter
73
1030 DIMM
77
1040 Keyboard
79
1050 Palm Rest or Palm Rest with Fingerprint Reader
82
1060 Backup Battery
85
1070 PCI Express Mini Card for Wireless LAN
87
1080 PCI Express Mini Card for Wireless WAN
91
1090 Intel Turbo Memory Minicard or Wireless USB Adapter
93
1100 Keyboard Bezel
95
1110 Speaker Assembly
96
1120 I/O Card Assembly
97
1130 LCD Assembly
99
1140 Base Cover Assembly
103
1150 Systemboard, DC-In Connector, Fan, and Expresscard Slot Assembly
109
2010 LCD Front Bezel
118
2020 Inverter Card
121
2030 Bluetooth Daughter Card (BDC-2.1)
122
2040 Integrated Camera
123
2050 LCD Panel, LCD Brackets, and LCD Cable
124
2060 Hinges and Hinge Brackets
130
2070 LCD Rear Cover and Wireless Antenna Cables
133
Locations
139
Front View
139
Rear View
140
Bottom View
141
Rear View (Thinkpad X200 Ultrabase)
142
Bottom View (Thinkpad X200 Ultrabase)
143
Parts List
144
Overall
145
LCD Frus
179
Keyboard
192
Miscellaneous Parts
193
AC Adapters
193
Power Cords
194
Common Service Tools
203
Notices
205
Trademarks
206

Lenovo 74542HU Brochure (4 pages)

Brochure

Brand: Lenovo | Category: Laptop | Size: 1.14 MB

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Lenovo 74542HU Manuals

Lenovo 74542HU Hardware Maintenance Manual (208 pages)

Table of Contents

Lenovo 74542HU Brochure (4 pages)

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