Lenovo B490 Hardware Maintenance Manual

Lenovo B490 Manual

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  • Lenovo B490 | Hardware Maintenance Manual - Page 1
    Hardware Maintenance Manual Lenovo B490
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    and the product it supports, be sure to read the general information under Appendix A "Notices" on page 93. First Edition (October 2012) © Copyright Lenovo 2012. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration "GSA" contract, use
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    Hard disk drive assembly 47 1060 PCI Express Mini Card for wireless LAN . . 49 1070 mSATA solid state drive 50 1080 Backup battery 51 1090 Keyboard 51 1100 Keyboard bezel 54 1110 LED board 56 1120 Power board 57 1130 Microphone assembly 58 1140 I/O board 59 1150 System board assembly and
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    ii Hardware Maintenance Manual
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    Machine Lenovo B490 Machine type (MT) 3756, 3772, 20205, 20207 Use this manual to troubleshoot problems. The manual is divided into the following sections: • The common sections provide general information, guidelines, and safety information required for servicing computers. • The product-specific
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    iv Hardware Maintenance Manual
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    presents following safety information that you need to be familiar with before you service a Lenovo Notebook. • "General safety" on page 1 • "Electrical safety" on page 2 • "Safety inspection guide" on page 3 • "Handling devices that are sensitive to electrostatic discharge" on page 3 • "Grounding
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    safety precautions when you work with very high voltages; Instructions for these precautions are in the safety sections of such touching can cause personal injury and machine damage. • Do not service the following parts with the power on when they are removed from : 2 Hardware Maintenance Manual
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    designed and built, required safety items were installed to protect users and service technicians from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-Lenovo features or options not covered by this inspection
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    meets the specific service requirement. Note : The use of a grounding system to guard against ESD damage is desirable but not necessary. - Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground. - When working on a double-insulated or battery Manual
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    DANGER DANGER DANGER DANGER DANGER Chapter 1. Safety information 5
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    DANGER 6 Hardware Maintenance Manual
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    Chapter 1. Safety information 7
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    PERIGO PERIGO PERIGO PERIGO PERIGO PERIGO 8 Hardware Maintenance Manual
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    PERIGO PERIGO DANGER DANGER DANGER Chapter 1. Safety information 9
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    DANGER DANGER DANGER DANGER DANGER VORSICHT 10 Hardware Maintenance Manual
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    VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1. Safety information 11
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    VORSICHT VORSICHT VORSICHT 12 Hardware Maintenance Manual
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    Chapter 1. Safety information 13
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    14 Hardware Maintenance Manual
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    Chapter 1. Safety information 15
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    16 Hardware Maintenance Manual
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    Chapter 1. Safety information 17
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    18 Hardware Maintenance Manual
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    Laser compliance statement (multilingual translations) The laser compliance statements in this section are provided in the following languages: • English • Arabic • Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese Chapter 1. Safety information 19
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    20 Hardware Maintenance Manual
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    Chapter 1. Safety information 21
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    22 Hardware Maintenance Manual
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    Chapter 1. Safety information 23
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    24 Hardware Maintenance Manual
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    Chapter 1. Safety information 25
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    26 Hardware Maintenance Manual
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    board is replaced, ensure that the latest BIOS is installed to the system board before completing the service action. To download software fixes, drivers, and BIOS, do the following: 1. Go to http://www.lenovo.com/support. 2. Click Download Drivers & Software. The Web site offers three options to
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    The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during RoHS requirements must be implemented on Lenovo products placed on the market after Manual or direct substitutions can be used. • Compliant FRUs identified in Hardware Maintenance Manual
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    checkout guide, be sure to read the following important notes. Important notes: • Only certified trained personnel should service the computer as cosmic radiation, electrostatic discharge, or software errors. Consider replacing a FRU only when a problem recurs. If you suspect that a Lenovo 2012 29
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    adapter may different from the one you are servicing. 3. If the voltage is not correct, replace the ac power adapter. 4. If the voltage is acceptable, do the following: • Replace the system board. • If the problem persists, go to Chapter 5 "Lenovo B490" on page 37. 30 Hardware Maintenance Manual
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    and click the Battery tab. • Windows 8: - On the Windows operating system, press the recovery button to launch the Lenovo Solution Center program, and then click Battery. - Press Fn+Esc to launch the Lenovo Experience program, and then click Battery Health. Note: If the battery pack becomes hot
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    less than +11.0 V dc after recharging, replace the battery. 4. If the voltage is more than +11.0 V dc, measure the resistance between battery terminals 5 and 7. The resistance must be 4 to 30 K Ω. If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the
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    To avoid data loss, back up your data in advance. - Configuring the advanced startup options The advanced startup options enable you to do the following: - Changing the startup settings of the Windows operating system - Restoring the Windows operating system from a system image - Starting up from an
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    A supervisor password protects the system information stored in the BIOS. The user must enter the supervisor password to get access to the BIOS and change the system configuration. Attention: If you forget the password, there is no service procedure to reset the password. The system board must be
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    time" has been set on the timer, and if the user does not do any operation with the keyboard, the hard disk drive, the parallel connector, or the diskette the boot record on the hard disk drive is read, and system status is restored from the hard disk drive. Chapter 4. Related service information
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    36 Hardware Maintenance Manual
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    Chapter 5. Lenovo B490 This chapter presents the following product-specific service references and parts information: • "Specifications" on page 37 • "Status indicators" on page 38 • "Fn key combinations" on page 39 Specifications This topic lists the physical features for the Lenovo B490 models.
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    Wireless features • Integrated wireless LAN • Integrated Bluetooth (on some models) • Integrated WiMAX • 100/1000 Mbps Ethernet communication Security feature Fingerprint Lock mode, press the Caps Lock key. 2 Numeric Lock White: The separate numeric keypad on the keyboard is enabled. To enable or
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    to the previous track Multimedia control: Skip to the next track Enables or disables the scroll lock function. Has the same function as the SysRq key on a conventional keyboard. Has the same function as the Pause key on a conventional keyboard. Chapter 5. Lenovo B490 39
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    Description Fn+End Has the same function as the Break key on a conventional keyboard. Fn+PgDn Activates the insert function. Fn + up/down arrow Increases or decreases the display brightness level. Fn + left/right arrow Increases or decreases the sound volume. 40 Hardware Maintenance
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    In the Lenovo notebook computer, this problem is addressed with special nylon-coated screws that have the following characteristics: • They maintain tight connections. • They do not easily come loose, even with shock or vibration. • They are harder to tighten. Do the following when you service this
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    • Torque driver If you have a torque screwdriver, refer to the Torque column in the screw information table to the torque specified in the screw information table for each step. • Ensure torque screw drivers are calibrated correctly following country specifications. 42 Hardware Maintenance Manual
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    instructions on how to remove or replace a FRU. CRU statement for customers: You can resolve some problems with your product with a replacement part you can install yourself, called a "Customer Replaceable Unit" or "CRU". Some CRUs are designated as self-service FRU, review Chapter 6 the battery pack
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    or explode. Unlock the spring-loaded battery latch 1 . Holding the manual battery latch in the unlocked position, remove the battery pack in the direction shown by the arrow 2 . 1 2 2 When installing: Install the battery pack in the slot. Ensure that the battery latches are in the locked position
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    the cover 2 . 1 1 2 2 Step 1 Screw (quantity) M2 × 3 mm, flat-head, nylon-coated (2) 1030 Optical drive For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 Removal steps of optical drive Remove the screw 1 . 1 Color Black Torque 1.85
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    remove the optical drive bracket. Step 1 Screw (quantity) M2 × 3 mm, flat-head, nylon-coated (2) 1040 Memory modules For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 46 Hardware Maintenance
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    If only one memory module is used on the computer you are servicing, the card must be installed in SLOT-0 ( a : lower slot access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot . • Before removing the drive, have the user make a backup copy of all the information
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    of hard disk drive bracket Remove the screws 1 . 1 1 1 1 Step 1 Screw (quantity) M3 × 4 mm, flat-head, nylon-coated (4) Color Silver Torque 4 kgf-cm 48 Hardware Maintenance Manual
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    as shown by the arrow 2 . 2 1060 PCI Express Mini Card for wireless LAN For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 Removal steps of PCI Express Mini Card for wireless LAN In steps 1 , disconnect the cables from the card using the
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    solid state drive For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 loss of data. • Before removing the drive, have the user make a backup copy of all the information on it if Hardware Maintenance Manual Color Black Torque 1.85 kgf-cm
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    ignite or explode. Detach the connector 1 , and then remove the battery pack in the direction shown by the arrow 2 . 2 1 When installing: Ensure that the connector is attached firmly. 1090 Keyboard For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on
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    1 1 1 When installing: Ensure that the screws have been fastened to secure the keyboard. Step 1 Screw (quantity) M2.5 × 8 mm, flat-head, nylon-coated unlatch the front side of the keyboard. 2 When installing: Ensure that the keyboard connector is attached firmly. 52 Hardware Maintenance Manual
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    Remove the keyboard in the direction shown by the arrow 3 . 3 Carefully lift the keyboard until you can see how it's connected. Hold the keyboard above the computer 4 , and then detach the keyboard connector. 4 6 5 Chapter 7. Removing and replacing a FRU 53
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    these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 • "1030 Optical drive" on page 45 • "1090 Keyboard" on page 51 Removal steps of keyboard bezel Remove the screws 1 and 2 that secure the keyboard bezel. 2 2 2 11 1 1 1 1 1 1 1 1 1 Step 1 2 Screw
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    Remove the screw 3 . 3 Step 3 Screw (quantity) M2 × 6 mm, flat-head, nylon-coated (1) Detach the connectors. Color Black Torque 1.85 kgf-cm 9 4 5 6 7 When installing: Ensure that all the connectors are attached firmly. Chapter 7. Removing and replacing a FRU 55
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    Remove the keyboard bezel. 10 1110 LED board For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 • "1030 Optical drive" on page 45 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 56 Hardware Maintenance Manual
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    remove the LED board 2 . 1 2 1120 Power board For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 • "1030 Optical drive" on page 45 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 Chapter 7. Removing and replacing a FRU 57
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    assembly For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 • "1030 Optical drive" on page 45 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 Removal steps of microphone assembly Detach the connector 1 , and then remove the
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    1140 I/O board For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 • "1030 Optical drive" on page 45 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 Removal steps of I/O board Remove the screws 1 , and then detach the cable.
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    drive assembly" on page 47 • "1060 PCI Express Mini Card for wireless LAN" on page 49 • "1070 mSATA solid state drive" on page 50 • "1080 Backup battery" on page 51 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 • "1130 Microphone assembly" on page 58 60 Hardware Maintenance Manual
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    Removal steps of system board assembly and USB board Remove the screws 1 , and then detach the connectors as shown in the following illustration. 9 8 1 1 6 7 2 3 4 1 5 Step 1 Screw (quantity) M2 × 6 mm, flat-head, nylon-coated (2) Color Black Torque 1.85 kgf-cm When installing: Ensure that
  • Lenovo B490 | Hardware Maintenance Manual - Page 68
    assembly" on page 47 • "1060 PCI Express Mini Card for wireless LAN" on page 49 • "1070 mSATA solid state drive" on page 50 • "1080 Backup battery" on page 51 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 • "1130 Microphone assembly" on page 58 • "1150 System board assembly and USB
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    Removal steps of thermal module Detach the fan connector 1 . 1 When installing: Ensure that the connector is attached firmly. Loosen the screws 2 to 8 . 7 6 5 2 8 4 3 Chapter 7. Removing and replacing a FRU 63
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    Lift the fan assembly in the direction shown by the arrow 9 . Note: Be careful not to damage the connector. 9 64 Hardware Maintenance Manual
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    on page 45 • "1040 Memory modules" on page 46 • "1050 Hard disk drive assembly" on page 47 • "1060 PCI Express Mini Card for wireless LAN" on page 49 • "1070 mSATA solid state drive" on page 50 • "1080 Backup battery" on page 51 • "1090 Keyboard" on page 51 Chapter 7. Removing and replacing a FRU 65
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    drive assembly" on page 47 • "1060 PCI Express Mini Card for wireless LAN" on page 49 • "1070 mSATA solid state drive" on page 50 • "1080 Backup battery" on page 51 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 • "1130 Microphone assembly" on page 58 66 Hardware Maintenance Manual
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    Silver Torque 4.0 kgf-cm When installing: • Route the antenna cables along the cable guides. As you route the cables, make sure that they are not subjected to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken. • Ensure that the LCD connector
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    assembly" on page 47 • "1060 PCI Express Mini Card for wireless LAN" on page 49 • "1070 mSATA solid state drive" on page 50 • "1080 Backup battery" on page 51 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 • "1130 Microphone assembly" on page 58 • "1140 I/O board" on page 59 • "1150
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    assembly" on page 47 • "1060 PCI Express Mini Card for wireless LAN" on page 49 • "1070 mSATA solid state drive" on page 50 • "1080 Backup battery" on page 51 • "1090 Keyboard" on page 51 • "1100 Keyboard bezel" on page 54 • "1130 Microphone assembly" on page 58 • "1140 I/O board" on page 59 • "1150
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    and adhere them to the new one. Note: If you replace a part with the Windows Certificate of Authentication (COA) label 12 , return the old part with the label on the label, such as the part number, serial number, and product key. The new base cover FRU is shipped with a kit containing labels of
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    for United States/Canada/Taiwan 6 PPT label 7 Indonesia Wireless LAN and BT label 8 Israel label 9 Israel label 10 Malaysia SIRIM label 11 Vodafone label 13 Rating label 14 Rating label 2010 LCD front bezel For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1180 LCD unit
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    Torque 1.85 kgf-cm When installing: Ensure that all the latches are attached firmly. Then secure the bezel with the screws. 2020 Camera For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1180 LCD unit" on page 66 • "2010 LCD front bezel" on page 71 72 Hardware Maintenance
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    the LCD cover. 1 2 When installing: Stick the camera to the top center of the LCD cover and adjust the placement to make sure that the connector is attached firmly. 2030 LCD panel, LCD cable, and hinges For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1180 LCD unit
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    2 . 1 1 1 2 1 1 1 Remove the screws 3 . Then remove the hinges 4 . 3 4 3 Step 1 Screw (quantity) M2 × 3.5 mm, flat-head, nylon-coated (4) 3 3 Color White 4 Torque 1.85 kgf-cm 74 Hardware Maintenance Manual
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    in order: • "1010 Battery pack" on page 44 • "1180 LCD unit" on page 66 • "2010 LCD front bezel" on page 71 • "2020 Camera" on page 72 • "2030 arrows 1 . 1 1 Cable routing: Route the antenna cables along the cable guides and secure the antenna boards with adhesive tapes. As you route the cables,
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    76 Hardware Maintenance Manual
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    of the Lenovo B490 hardware components. Front view 2 1 2 4 9 8 3 4 7 6 5 Figure 1. Lenovo B490 front view 1 Integrated camera (on some models) 2 Wireless module antennas 3 Status indicators 1 4 Speakers 5 Media card reader slot 6 Touch pad and touch pad buttons 7 Power and battery indicator1
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    and left-side view 45 3 12 4 USB connector 5 ac power connector 1 2 3 10 4 5 8 76 9 Figure 3. Lenovo B490 bottom and left-side view 1 Battery latch 2 Battery pack 3 Battery lock 4 Security keyhole 5 Fan louvers 6 Monitor connector 7 Ethernet connector 8 HDMI port 9 USB connectors 10 Bottom
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    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 cord, battery, and hard disk drive. Other self-service CRUs depending on product design might include the memory module, wireless card, keyboard, and
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    ) 1 LCD unit (see "LCD FRUs" on page 83.) 2 LB48 Upper Case W/TP 6M.4TFCS.001 3 LB48 LED Board W/Cable 50.4TF03.001 80 Hardware Maintenance Manual 1 2 3 45 56 67 ab 78 bc 89 910 cd 1101 de 1112 1123 1134 FRU no. CRU ID 90200759 N 90000223 N
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    90000969 N 5 LB49B USB Board W/Cable 90000976 N 6 Battery, 6CELL 2.2Ah, Sanyo 2.2Ah 48Wh 6cell battey 121500047 * 6 Battery, 6CELL 2.2Ah, LG 2.2Ah 48Wh 6cell battey 121500049 * 6 Battery, 6CELL 2.2Ah, SMP 2.2Ah 48Wh 6cell battey 121500050 * 6 Battery, 6CELL 2.8Ah, SA L11S6F01 3S2P 62Wh Batt
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    * 11200341 * 11200344 * 11200347 * 11200393 * 11200397 * 90200766 N 90000973 N 90000974 N 90000975 N 90001824 N 90001825 N 90001826 N 90001827 N 90001828 N 90001829 N 90001830 N 90001831 N 90001832 N 90001833 N 90001834 N 90001835 N 90001919 N 82 Hardware Maintenance Manual
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    i5-3210M Ivy Bridge L-0 3MB 2c PGA 2.5GHz STD 35W processor 20 CPU, i3- I3-2328M 2.2G J1 3M 2cPGA 20 CPU, Intel I3-3120M 2.5G L1 3M 2cPGA Processor 21 LB48 Power Board 55.4TF05.001G LB49B Fingerprint Board 22 Keyboard (see "Keyboard N 90000979 N LCD FRUs In Lenovo B490 models, the type of LCD is
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    list - LCD No. FRU 1 LB49A LCD Bezel W/Camera Hole 1 LB49A LCD Bezel WO/Camera Hole 2 LB48 Hinge R+L 6K.4TFCS.001 3 LB58 Camera 0.3M 4 LB48 Antenna R 25.90AAL.001 5 7 Panel, 14.0 HD Flat Glossy, IVO M140NWR2 R1 84 Hardware Maintenance Manual 1 2 3 4 5 FRU no. CRU ID 90201838 N 90201839 N 90200760
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    Table 5. Parts list - Keyboard (Dafon) Language Arabic Belgian Brazilian Portuguese Bulgarian French, English Czech, Slovak C& 25204435 25204437 25204442 25204436 25204433 25204432 25204458 FRU NO. (Windows 8) 25209346 25209354 25209347 25209360 25209340 25209359 25209353 25209349 25209344
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    English U.S. English U.S. English (International, with a Euro symbol) Table 7. Parts list - Keyboard (Chicony) Language Arabic Belgian Brazilian Portuguese 86 Hardware Maintenance Manual FRU NO. (Windows 7) 25204476 25204484 25204477 25204490 25204489 25204483 25204479 25204474 25204470 25204475
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    Table 7. Parts list - Keyboard (Chicony) (continued) Language Bulgarian Czech, Slovak C& Nordics Dutch French (d) LB49A ODD Bezel (e) LA48 HDD Bracket 60.4TE08.001 FRU NO. (Windows 7) 25204430 25204429 25204423 25204419 25204415 25204411 25204416 25204420 25204421 25204422 25204431 25204425 25204405
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    .4TD02.001 LB48 LCD Cable 50.4TF01.001 LA48 LCD Mylar 40.4TD03.001 LB48 Fingerprint Bracket 33.4TF04.001 LA48 Microphone Rubber 23.42383.001 FRU no. 90200756 90200512 90200757 90200537 90200758 90200538 CRU ID N 36200103 36200147 36200149 36200150 CRU ID * * * * * * 88 Hardware Maintenance Manual
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    model Chicony Power HP-BT090E13LF, EPA model FRU no. 36200106 36200105 36200107 36200030 36200031 36200032 CRU ID * * * * * * Power cords A Lenovo power cord for a specific country or region is usually available only in that country or region. Table 13. Parts list - 3-pin power cords (Linetek
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    -F+LS-5 1 m South Africa • Longwell LP-39+H03VV-F+LS-18 1 Switzerland • Longwell LP-37+H03VV-F+LS-18 1 m 90 Hardware Maintenance Manual FRU no. 145000597 CRU ID * 145000588 * 145000593 * 145000594 * FRU no. 145000567 CRU ID * 145000557 * 145000564 * 145000553 * 145000568 * 145000566
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    Table 14. Parts list - 3-pin power cords (Longwell) (continued) Country or region Taiwan • Longwell LP-71+VCTF+LS-33 1 m U.K. • Longwell LP-61L+H03VV-F+LS-18 1 m UL • Longwell LP-30B+SPT-2 18AWG+LS-18 1 m Table 15. Parts list - 3-pin power cords (Volex) Country or region Argentina • VOLEX VA2073+
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    • LINETEK PC205+RVV 0.75/2C+COC03 1 m CE • LINETEK LP21+H03VVH2-F+ LS7 1 m India • LINETEK LP28+IS:694 0.75/2C+ LS7H 1 m Israel • LINETEK LP45+H03VV-F+LS7 1 1 m UK • LINETEK LP61L+H03VVH2-F+ LS7H 1 m 92 Hardware Maintenance Manual FRU no. 145000605 CRU ID * 145000537 * FRU no. 145500024 CRU ID
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    are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons. The information contained in this document does not affect or change Lenovo product specifications or warranties. Nothing in this document shall operate as an
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    information on Class B digital devices, refer to the corresponding information in the User Guide. Trademarks The following terms are trademarks of Lenovo in the United States, other countries or both: Lenovo OneKey Windows is the trademark of the Microsoft group of companies. Intel is the trademark
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  • Lenovo B490 | Hardware Maintenance Manual - Page 102
    Part Number: Printed in China (1P) P/N: *1P*
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Hardware Maintenance Manual
Lenovo B490