Lenovo M490s Laptop Hardware Maintenance Manual - Lenovo M490s Notebook
Lenovo M490s Laptop Manual
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Lenovo M490s Laptop manual content summary:
- Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 1
Hardware Maintenance Manual Lenovo M490s - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 2
and the product it supports, be sure to read the general information under Appendix A "Notices" on page 71. First Edition (January 2013) © Copyright Lenovo 2013. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration "GSA" contract, use - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 3
manual iii Chapter 1. Safety information 1 General safety 1 Electrical safety 1 Safety inspection guide Checking the battery pack 23 Chapter 3. Important service information 25 Recovering the computer settings 25 Using emissions notices 72 Trademarks 72 © Copyright Lenovo 2013 i - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 4
ii Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 5
safety guidelines and important notices for servicing the computer. Important: • This manual is intended only for trained service technicians who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively. • Before servicing a Lenovo product, ensure that you read all - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 6
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chapter presents following safety information that you need to be familiar with before you service a Lenovo notebook computer. • "General safety" on page 1 • "Electrical safety" on page 1 • "Safety inspection guide" on page 3 • "Handling devices that are sensitive to electrostatic discharge" on page - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 8
precautions when you work with very high voltages; Instructions for these precautions are in the safety sections of touching can cause personal injury and machine damage. • Do not service the following parts with the power on when they are removed from medical aid. 2 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 9
and service technicians from injury. This guide addresses non-Lenovo features or options not covered by this inspection guide. If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 10
grounding system, such as those listed below, to provide protection that meets the specific service requirement. Note: The use of a grounding system to guard against ESD damage is German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese DANGER DANGER 4 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 11
DANGER DANGER DANGER DANGER DANGER Chapter 1. Safety information 5 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 12
DANGER 6 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 13
Chapter 1. Safety information 7 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 14
PERIGO PERIGO PERIGO PERIGO PERIGO PERIGO 8 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 15
PERIGO PERIGO DANGER DANGER DANGER Chapter 1. Safety information 9 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 16
DANGER DANGER DANGER DANGER DANGER VORSICHT 10 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 17
VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1. Safety information 11 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 18
VORSICHT VORSICHT VORSICHT 12 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 19
Chapter 1. Safety information 13 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 20
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Chapter 1. Safety information 15 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 22
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Chapter 1. Safety information 17 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 24
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Chapter 1. Safety information 19 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 26
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checkout instructions, ensure that you read the following important notes. Important notes: • Only certified trained personnel should service the discharge, or software errors. Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the Lenovo 2013 21 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 28
notebook computers The following symptoms might indicate damage caused by nonwarranted activities: • Missing parts might be a symptom of unauthorized service power when you turn on the computer. If you suspect a power problem, refer to the following topics for a checkout: • "Checking the ac Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 29
: a. Replace the system board. b. If the problem persists, call the Customer Support Center. Note: Noise from the ac power adapter 8: Do one of the following: - Click Start ➙ Lenovo Solution Center ➙ System ➙ Battery. - Launch the Lenovo Settings program from the Start screen, and then click Power - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 30
, even if the battery status indicator does not turn on. 5. Replace the system board if the new battery pack is not charged. 24 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 31
Chapter 3. Important service information This chapter presents the following information: • "Recovering the computer settings" on page 25 • "Using passwords" on page 25 passwords You can set the following types of passwords to protect unauthorized access to your computer. © Copyright Lenovo 2013 25 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 32
Attention: If you forget the password, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee. • Power-on password: A power- it enters sleep mode. Wait a few seconds before taking any actions to reenter operation mode. 26 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 33
file in the boot record on the hard disk drive is read, and the system status is restored from the hard disk drive. Chapter 3. Important service information 27 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 34
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20%. • Fast-blinking orange: The battery charge or discharge level is 5% or less. • Off: The battery is detached or the computer is powered off. © Copyright Lenovo 2013 29 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 36
. 4 Power-on status indicator • Green: The computer is on and ready for use. • Off: The computer is off or in hibernation mode. 30 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 37
. Has the same function as the Insert key on a conventional keyboard. Increases or decreases the display brightness level. Decreases or increases the sound volume. © Copyright Lenovo 2013 31 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 38
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Left-click button 11 Status indicators 12 Power button Note: For the description of each status indicator, see Chapter 4 "Status indicators" on page 29. © Copyright Lenovo 2013 33 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 40
service CRU. A Letter "N" in the CRU ID column means that the part is not a CRU. • CRU statement for customers: You can resolve some problems Manual. An electronic version of this manual can be found at http://www.lenovo.com/UserManuals. Follow the on-screen instructions to find the manual for - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 41
more than two screws. Examples of these types of CRUs include the ac power adapter, power cord, battery, and hard disk drive. Other self-service CRUs depending on product design might include the memory module, wireless card, keyboard, and palm rest with finger print reader and touch pad. - Optional - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 42
19 Touch pad bracket 20 Touch pad 21 Touch pad cable 22 Power board CRU ID N N N N N N N ** * ** N * N N * * N N N N N N LCD FRUs and CRUs Lenovo M490s models use a 356-cm (14.0-inch), high-definition (HD), light-emitting diode (LED), liquid crystal display (LCD). 36 Hardware Maintenance - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 43
cable LCD panel CRU ID N N N N N N N Looking up FRU information For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to http://www.lenovo.com/serviceparts-lookup. Chapter 6. Locations 37 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 44
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customers: You can resolve some problems with your product with a Manual. An electronic version of this manual can be found at http://www.lenovo.com/UserManuals. Follow the on-screen instructions to find the manual following: 1. Go to http://www.lenovo.com/support. 2. Click Download Drivers & - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 46
If you are instructed to replace either the processor board or the system board, but the replacement does not solve the problem, reinstall the original only the FRU that changed the symptoms. Screw notices The Lenovo notebook computer uses special nylon-coated screws that have the following - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 47
. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at http://www.lenovo.com/UserManuals. Follow the on-screen instructions to find the manual for your product. You might be required to return the defective CRU. When - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 48
battery lock are in the locked positions. 1020 Bottom slot cover For access, remove this FRU: • "1010 Battery pack" on page 42 42 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 49
Removal steps of the bottom slot cover Remove the screws 1 , and then remove the bottom slot cover 2 . 1 1 2 Step 1 Screw (quantity) M2 × 4 mm, flat-head, nylon-coated (2) 1030 Memory modules For access, remove these FRUs in order: • "1010 Battery pack" on page 42 • "1020 Bottom slot cover" on - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 50
firmly installed in the slot and does not move easily. Note: If only one memory module is to be installed into the computer you are servicing, the memory module must be installed in SLOT-0 ( a right slot), but not in SLOT-1 ( b left slot). b a 44 Hardware Maintenance - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 51
possible. • Never remove the drive while the computer is operating or in suspend mode. • The drive startup sequence in the computer you are servicing might have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 52
wireless LAN For access, remove these FRUs in order: • "1010 Battery pack" on page 42 • "1020 Bottom slot cover" on page 42 46 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 53
Removal steps of the PCI Express Mini Card for wireless LAN In steps 1 , unplug the connectors by using the antenna RF connector or pick up the connectors with your fingers and gently unplug them. Then remove the screws 2 . 2 1 1 2 Step 2 Screw (quantity) M2 × 3 mm, flat-head, nylon-coated (2) - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 54
Backup battery For access, remove these FRUs in order: • "1010 Battery pack" on page 42 • "1020 Bottom slot cover" on page 42 48 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 55
Removal steps of the backup battery DANGER Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode. Carefully pry the backup battery out using a screwdriver. 1080 Base cover For access, remove these FRUs in order: • "1010 Battery pack" on page 42 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 56
of the label on the computer and the information on the label, such as the part number, serial number, and product key. 50 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 57
The following illustration shows the label locations on the base cover. 1 2 3 4 5 6 7 8 1 Barcode label 2 KCC label 3 Indonesia D side label 4 Rating label 5 Bluetooth label 6 Wireless LAN label 7 PPT label for China 3G models 8 Certificate of Authentication label (on Windows 7 models only) - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 58
42 • "1020 Bottom slot cover" on page 42 • "1040 Hard disk drive assembly" on page 45 • "1080 Base cover" on page 49 52 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 59
Removal steps of the fingerprint board bracket and fingerprint board Remove the screw 1 , and then remove the fingerprint board bracket 2 . 1 2 Step 1 Screw (quantity) M2 × 3 mm, flat-head, nylon-coated (1) Detach the fingerprint connector. 3 4 Color Black Torque 0.181 Nm (1.85 kgf-cm) When - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 60
steps of the thermal module assembly Detach the connector. 1 When installing: Ensure that the connector is attached firmly to the system board. 54 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 61
of 0.2 grams, on the part marked a and b as shown in the following illustrations. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component. For models with an integrated thermal module assembly a Chapter 8. Removing or replacing a FRU 55 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 62
" on page 54 Removal steps of the DC-in connector Remove the screws 1 . 1 1 1 a b Step 1 Screw (quantity) M2.5 × 5 mm, flat-head, nylon-coated (3) 56 Hardware Maintenance Manual Color Black Torque 0.392 Nm (4.0 kgf-cm) - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 63
In step 2 , open the LCD hinge by pivoting it upward. Then detach the connector 3 . 3 2 When installing: Ensure that the connector is attached firmly to the system board. Remove the DC-in connector. 4 1140 Power board For access, remove these FRUs in order: • "1010 Battery pack" on page 42 • "1020 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 64
. Torque 0.392 Nm (4.0 kgf-cm) 4 3 2 When installing: Ensure that the connector is attached firmly to the system board. Remove the power board. 5 58 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 65
sensitive. Improper handling of a system board can cause damage to the following components, and might cause a system malfunction. When you service the system board, avoid any kind of rough handling. a Platform Controller Hub (PCH) b Microprocessor c Graphics chip (for discrete graphics models - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 66
.5 × 5 mm, flat-head, nylon-coated (6) Color Black When installing: Ensure that all the connectors are attached firmly. Torque 0.392 Nm (4.0 kgf-cm) 60 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 67
Open the LCD hinges by pivoting them upward. 2 2 Detach the connectors. 5 4 3 14 7 6 8 9 15 12 13 11 10 When installing: Ensure that all the connectors are attached firmly to the system board. Chapter 8. Removing or replacing a FRU 61 - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 68
board bracket and fingerprint board" on page 52 • "1120 Thermal module assembly" on page 54 • "1150 System board assembly" on page 59 62 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 69
Removal steps of the touch pad assembly, speakers, keyboard bezel, and LCD unit Remove the screws 1 and then remove the touch pad bracket 2 . 1 2 1 Step 1 Screw (quantity) M2 × 4 mm, flat-head, nylon-coated (2) Remove the touch pad. 3 Color Black Torque 0.181 Nm (1.85 kgf-cm) Remove the - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 70
front bezel Remove the screws 1 . 1 1 Step 1 Screw (quantity) M2 × 4 mm, flat-head, nylon-coated (2) Color Black Torque 0.181 Nm (1.85 kgf-cm) 64 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 71
Remove the LCD front bezel. 2 2 2 2 When installing: Ensure that all the latches are attached firmly. Then secure the bezel with the screws. 2020 Camera and microphone board For access, remove these FRUs in order: • "1010 Battery pack" on page 42 • "1160 Touch pad assembly, speakers, keyboard - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 72
page 42 • "1160 Touch pad assembly, speakers, keyboard bezel, and LCD unit" on page 62 • "2010 LCD front bezel" on page 64 66 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 73
Removal steps of the LCD panel and LCD cable Remove the screws 1 , and then remove the LCD panel 2 . 1 1 2 1 1 Step 1 Screw (quantity) M2 × 3 mm, flat-head, nylon-coated (4) Turn over the LCD panel. Then detach the LCD cable. Color Black Torque 0.181 Nm (1.85 kgf-cm) 5 4 3 When installing: - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 74
bezel" on page 64 • "2020 Camera and microphone board" on page 65 • "2030 LCD panel, LCD cable, and hinges" on page 66 68 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 75
of the LCD rear cover assembly and from the hinges. 1 1 2 1 2 1 1 1 Cable routing: Route the antenna cables along the cable guides and secure the antenna boards with tapes. Attention: When you route the cables, ensure that they are not subject to any tension. Tension could damage - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 76
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and verify the operation of any other product, program, or service. Lenovo may have patents or pending patent applications covering subject matter described document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 78
The following terms are trademarks of Lenovo in the United States, other countries or both: Lenovo OneKey Microsoft and Windows are trademarks of the Microsoft group of companies. Other company, product, or service names may be trademarks or service marks of others. 72 Hardware Maintenance Manual - Lenovo M490s Laptop | Hardware Maintenance Manual - Lenovo M490s Notebook - Page 79
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Hardware Maintenance Manual
Lenovo M490s