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Yoga A940
User Manuals: Lenovo Yoga A940 All-in-One Desktop
Manuals and User Guides for Lenovo Yoga A940 All-in-One Desktop. We have
3
Lenovo Yoga A940 All-in-One Desktop manuals available for free PDF download: User Manual, Hardware Maintenance Manual
Lenovo Yoga A940 User Manual (85 pages)
Brand:
Lenovo
| Category:
Desktop
| Size: 4.95 MB
Table of Contents
Table of Contents
4
Meeting Your Computer
7
Front View
7
Rear View
9
Left View
10
Right View
11
Peripheral Devices
12
Touch Screen Instructions
16
Touch Screen Calibration
16
Using Touch Screen
16
Troubleshooting and Confirming Setup
18
Solving Problems
18
Troubleshooting Display Problems
18
Troubleshooting Audio Problems
19
Troubleshooting Software Problems
20
Troubleshooting Problems with Optical Drives and Hard Disks
20
Special Considerations for Troubleshooting Windows
21
Windows Help System
22
BIOS Setup Utility
22
Performing Daily Maintenance Tasks
23
Important Safety Information
24
Conditions that Require Immediate Action
25
General Safety Guidelines
26
Electrical Current Safety Information
33
Lithium Battery Notice
34
Modem Safety Information
34
Laser Compliance Statement
35
Power Supply Statement
35
Power Cord Notice
36
Products with Television Tuner Options Installed
37
Data Safety
38
Cleaning and Maintenance
39
Using Headphones or Earphones
39
Plastic Bag Notice
40
Tip-Over Hazard Prevention Notice
40
Additional Safety Information
41
Important Safety Information for Service Technicians
44
Service and Support Information
55
Downloading Publications
55
Lenovo Limited Warranty
56
Part 1 - General Terms
56
Part 2 - Country-Specific Terms
60
Part 3 - Warranty Service Information
64
Notices
66
Declaration
66
Electronic Emissions Notices
67
Regulatory Information
71
Compliance Information
71
Mainland China Rohs
71
Taiwan Rohs
72
Turkish Statement of Compliance
73
Ukraine Rohs Statement
73
India Rohs Statement
73
Waste Electrical and Electronic Equipment (WEEE) Notices
74
Eurasian Compliance Mark
77
ENERGY STAR Information
77
Enabling Erp Compliance Mode
78
Export Classification Notice
79
Legal Notices
80
Trademarks
80
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Lenovo Yoga A940 Hardware Maintenance Manual (65 pages)
Brand:
Lenovo
| Category:
Desktop
| Size: 7.74 MB
Table of Contents
Table of Contents
3
About this Manual
5
Chapter 1. Read this First: Important Safety Information
7
General Safety
7
Electrical Safety
7
Safety Inspection Guide
9
Handling Electrostatic Discharge-Sensitive Devices
9
Grounding Requirements
10
Safety Notices
10
Chapter 2. Environment and Electrical Input
13
Chapter 3. General Checkout
15
Chapter 4. Using the Setup Utility Program
17
Starting the Setup Utility Program
17
Enabling or Disabling a Device
17
Enabling or Disabling the Automatic Power on Features
17
Using BIOS Passwords
17
Setup Utility Program Password Types
18
Password Considerations
18
Setting, Changing, and Deleting a Password
18
Selecting a Startup Device
18
Changing the Startup Device Sequence Permanently
19
Selecting a Temporary Startup Device
19
Exiting the Setup Utility Program
19
Chapter 5. Symptom-To-FRU Index
21
Hard Disk Drive Boot Error
21
Power Supply Problems
21
POST Error Codes
22
Undetermined Problems
22
Chapter 6. Hardware Locations
23
Overview
23
Major Frus and Crus
26
Parts on the System Boards
29
Chapter 7. Installing or Replacing Hardware
31
Handling Static-Sensitive Devices
31
Installing or Replacing Hardware
31
Replacing the Computer Display Panel
31
Replacing the USB Connector
34
Replacing the Function Board Shield
34
Replacing the Wi-Fi Card
35
Replacing the Function Board
36
Replacing the Touch Board Shield
37
Replacing the Touch Board
38
Replacing the Subwoofer
39
Replacing the LED Light Bar
40
Replacing the Panel Cover
40
Replacing the Microphone Module and the Camera Module
42
Replacing the Mainframe
43
Replacing the Front Bezel
44
Replacing the Memory Module
45
Replacing the SSD
46
Replacing the Fan
46
Replacing the CMOS Battery
47
Replacing the Speakers
48
Replacing the Housing Top Metal Assembly
49
Replacing the Fan Duct
50
Replacing the Thermal Module
51
Replacing the CPU
52
Replacing the HDD
53
Replacing the HDD SATA Connector
54
Replacing the System Board
54
Replacing the Power Button Board
55
Replacing the HDMI Switch Board
56
Replacing the Wireless Charger Cover
57
Replacing the Bluetooth Speaker Board
57
Replacing the Wireless Charger LED Board
58
Replacing the Wireless Charger Module
59
Completing the Parts Replacement
61
Chapter 8. Additional Service Information
63
Trademarks
65
Lenovo Yoga A940 User Manual (22 pages)
Brand:
Lenovo
| Category:
Desktop
| Size: 3.06 MB
Table of Contents
Table of Contents
3
Meeting Your Computer
6
Front View
6
Rear View
8
Left View
9
Right View
10
Peripheral Devices
11
Touch Screen Instructions
15
Touch Screen Calibration
15
Using Touch Screen
15
Troubleshooting and Confirming Setup
17
Solving Problems
17
Troubleshooting Display Problems
17
Troubleshooting Audio Problems
18
Troubleshooting Software Problems
19
Troubleshooting Problems with Optical Drives and Hard Disks
19
Special Considerations for Troubleshooting Windows
20
Windows Help System
21
BIOS Setup Utility
21
Performing Daily Maintenance Tasks
22
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