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Lenovo B475e Hardware Maintenance Manual
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Lenovo B475e Hardware Maintenance Manual

Lenovo B475e Hardware Maintenance Manual

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Hardware Maintenance Manual
Lenovo B475e

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  • Page 1 Hardware Maintenance Manual Lenovo B475e...
  • Page 2 Appendix A “Notices” on page 89. First Edition (June 2012) © Copyright Lenovo 2012. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.

  • Page 3: Table Of Contents

    ....Chapter 5. Lenovo B475e ..37 Specifications ....
  • Page 4 Hardware Maintenance Manual...

  • Page 5: About This Manual

    • The product-specific sections include service, reference, and product-specific parts information. 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, be sure to read all the information under Chapter 1 “Safety information”...
  • Page 6 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Safety Information

    • Reinstall all covers correctly before returning the machine to the customer. • Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers. © Copyright Lenovo 2012...

  • Page 8: Electrical Safety

    Electrical safety Observe the following rules when working on electrical equipment. Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges.

  • Page 9: Safety Inspection Guide

    4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo alterations. 7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.

  • Page 10: Grounding Requirements

    2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective. When handling ESD-sensitive parts: • Keep the parts in protective packages until they are inserted into the product. • Avoid contact with other people. •...
  • Page 11 DANGER DANGER DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 12 DANGER Hardware Maintenance Manual...
  • Page 13 Chapter 1 Safety information...
  • Page 14 PERIGO PERIGO PERIGO PERIGO PERIGO PERIGO Hardware Maintenance Manual...
  • Page 15 PERIGO PERIGO DANGER DANGER DANGER Chapter 1 Safety information...
  • Page 16 DANGER DANGER DANGER DANGER DANGER VORSICHT Hardware Maintenance Manual...
  • Page 17 VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1 Safety information...
  • Page 18 VORSICHT VORSICHT VORSICHT Hardware Maintenance Manual...
  • Page 19 Chapter 1 Safety information...
  • Page 20 Hardware Maintenance Manual...
  • Page 21 Chapter 1 Safety information...
  • Page 22 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Safety information...
  • Page 24 Hardware Maintenance Manual...

  • Page 25: Laser Compliance Statement (Multilingual Translations)

    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...
  • Page 26 Hardware Maintenance Manual...
  • Page 27 Chapter 1 Safety information...
  • Page 28 Hardware Maintenance Manual...
  • Page 29 Chapter 1 Safety information...
  • Page 30 Hardware Maintenance Manual...
  • Page 31 Chapter 1 Safety information...
  • Page 32 Hardware Maintenance Manual...

  • Page 33: Chapter 2. Important Service Information

    After a system 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 begin your search: • Search by product number •...

  • Page 34: Strategy For Replacing A Hard Disk Drive

    Note: RoHS and non-RoHS FRU part numbers with the same fit and function are identified by the unique FRU part numbers. Lenovo plans to transit to RoHS compliance before the implementation date and expects its suppliers to be ready to meet Lenovo’s requirements and schedule in the European Union. Products sold between 2005 and 2006 might contain some RoHS compliant FRUs.

  • Page 35: Chapter 3. General Checkout

    • Damage caused by liquid spilled into the system • Damage caused by the improper insertion of a PC Card or the installation of an incompatible card • Improper disc insertion or use of an optical drive © Copyright Lenovo 2012...

  • Page 36: Power System Checkout

    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 B475e” on page 37. Hardware Maintenance Manual...

  • Page 37: Checking Operational Charging

    Note: Noise from the ac power adapter does not always indicate a defect. Checking operational charging To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer. Perform operational charging.
  • Page 38 Hardware Maintenance Manual...

  • Page 39: Chapter 4. Related Service Information

    Passwords As many as two passwords might be needed for a Lenovo notebook computer: the power-on password, the hard disk password, and the supervisor password. If any of these passwords has been set, a prompt for it will be displayed on the screen whenever the computer is turned on.

  • Page 40: Power Management

    Power management Note: Power management modes are not supported for APM operating system. To reduce power consumption, the computer has three power management modes: screen blank, sleep, and hibernation. Screen blank mode If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off. You also can turn off the LCD backlight by pressing Fn+F2.
  • Page 41 • If a “hibernation 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 drive within that time. • If the timer conditions are satisfied in suspend mode. When the power is turned on, the computer returns from hibernation mode and resumes operation.
  • Page 42 Hardware Maintenance Manual...

  • Page 43: Chapter 5. Lenovo B475E

    “Status indicators” on page 38 • “Fn key combinations” on page 39 Specifications This topic lists the physical features for the Lenovo B475e models. Processor • To view the processor information of your computer, click Start, right-click Computer, and then click Properties.

  • Page 44: Status Indicators

    Wireless features • Integrated Bluetooth (on some models) • Integrated WiMAX • 100/1000 Mbps Ethernet communication Status indicators This topic presents the system status indicators that show the status of the computer. Table 1. Status indicators Indicator Meaning Caps lock indicator White: Caps lock mode is enabled.

  • Page 45: Fn Key Combinations

    Fn+Home Activate the pause function. Fn+End Activate the break function. Fn+PgDn Activate the insert function. Fn + Up/Down arrow Increase or decrease the display brightness level. Increase or decrease the sound volume. Fn + Left/Right arrow Chapter 5 Lenovo B475e...
  • Page 46 Hardware Maintenance Manual...

  • Page 47: Copyright Lenovo

    This chapter presents notices related to removing and replacing parts. Read this chapter carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In the Lenovo notebook computer, this problem is addressed with special nylon-coated screws that have the following characteristics: • They maintain tight connections.
  • Page 48 Hardware Maintenance Manual...

  • Page 49: Chapter 7. Removing And Replacing A Fru

    (ESD) strap (P/N 6405959). 1010 Battery pack Removal steps of battery pack DANGER Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode. © Copyright Lenovo 2012...

  • Page 50: 1020 Bottom Slot Cover

    Unlock the manual battery latch . Holding the spring-loaded battery latch in the unlocked position, remove the battery pack in the direction shown by the arrow When installing: Install the battery pack in the slot. Make sure that the battery latches are in the locked position.

  • Page 51: 1030 Hard Disk Drive

    Removal steps of bottom slot cover Loosen the screws and remove the screw , then remove the bottom slot cover Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylon-coated (4) Black 1.6 kgfcm M2.5 × 7 mm, flat-head, nylon-coated (1) Black 3.0 kgfcm 1030 Hard disk drive...
  • Page 52 Removal steps of hard disk drive assembly Remove the screw Torque Step Screw (quantity) Color M2 × 3 mm, flat-head, nylon-coated (1) Black 1.6 kgfcm Pull the tab in the direction shown by the arrow to remove the hard disk drive from the slot. When installing: Make sure that the hard disk drive connector is attached firmly.

  • Page 53: 1040 Optical Drive

    Remove the hard disk drive bracket in the direction shown by the arrow 1040 Optical drive For access, remove these FRUs in order: • “1010 Battery pack” on page 43 • “1020 Bottom slot cover” on page 44 Removal steps of the optical drive Remove the screw , insert a screwdriver into the screw hole and push the optical drive in the direction shown by the arrow...

  • Page 54: 1060 Pci Express Mini Card For Wireless Lan

    Note: If only one memory module is used on the computer you are servicing, the card must be installed in SLOT-0 ( : lower slot), but not in SLOT-1 ( : upper slot). When installing: Insert the notched end of the memory module into the socket. Press the memory module firmly, and pivot it until it snaps into place.

  • Page 55: 1070 Backup Battery

    Removal steps of PCI Express Mini Card for wireless LAN Disconnect the cable from the card using the removal tool antenna RF connector (P/N: 08K7159) or pick up the cable with your fingers and then gently disconnect it from the card in the direction of the arrow .

  • Page 56: 1080 Keyboard

    Removal steps of backup battery DANGER Use only the battery specified in the parts list for your computer. Any other battery could ignite or explode. Insert a screwdriver into the backup battery hole and push the backup battery until the battery pops up. 1080 Keyboard For access, remove these FRUs in order: •...
  • Page 57 Push hard in the direction shown by the arrows to unlatch the rear edge of the keyboard. The keyboard will open up slightly Chapter 7 Removing and replacing a FRU...

  • Page 58: 1090 Keyboard Bezel

    Carefully lift the keyboard until you can see how it is connected. Hold the keyboard above the computer and then detach the connector in the direction shown by the arrows 1090 Keyboard bezel For access, remove these FRUs in order: •...
  • Page 59 Removal steps of keyboard bezel Remove screws that secure the keyboard bezel. Step Screw (quantity) Color Torque Black 3.0 kgfcm M2.5 × 7 mm, flat-head, nylon-coated (11) M2 × 3 mm, flat-head, nylon-coated (3) Black 1.6 kgfcm Remove the screw Step Screw (quantity) Color...
  • Page 60 Detach the connectors. When installing: Make sure that the connectors are attached firmly to the system board. Remove the keyboard bezel. Hardware Maintenance Manual...

  • Page 61: 1100 Led Board And Power Board

    1100 LED board and power board For access, remove these FRUs in order: • “1010 Battery pack” on page 43 • “1020 Bottom slot cover” on page 44 • “1030 Hard disk drive” on page 45 • “1040 Optical drive” on page 47 •...

  • Page 62: 1110 Microphone Assembly

    1110 Microphone assembly For access, remove these FRUs in order: • “1010 Battery pack” on page 43 • “1020 Bottom slot cover” on page 44 • “1030 Hard disk drive” on page 45 • “1040 Optical drive” on page 47 •...
  • Page 63 • “1040 Optical drive” on page 47 • “1050 Memory modules” on page 47 • “1060 PCI Express Mini Card for wireless LAN” on page 48 • “1070 Backup battery” on page 49 • “1080 Keyboard” on page 50 • “1090 Keyboard bezel”...

  • Page 64: 1130 System Board Assembly

    Remove the I/O board 1130 System board assembly Important notices for handling the system board: When handling the system board, bear the following in mind: • Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite. •...
  • Page 65 Removal steps of system board Remove the screw . Detach the connectors. Torque Step Screw (quantity) Color M2 × 5 mm, flat-head, nylon-coated (1) Black 3.0 kgfcm When installing: Make sure that all the connectors are attached firmly. Chapter 7 Removing and replacing a FRU...

  • Page 66: 1140 Lcd Unit

    Remove the system board in the direction shown by the arrow 1140 LCD unit For access, remove these FRUs in order: • “1010 Battery pack” on page 43 • “1020 Bottom slot cover” on page 44 • “1030 Hard disk drive” on page 45 •...
  • Page 67 Removal steps of LCD unit Release the antenna cables from the cable guides. Then remove the screws Step Screw (quantity) Color Torque Black M2 × 5 mm, flat-head, nylon-coated (4) 1.6 kgfcm When installing: • Route the antenna cables along the cable guides. As you route the cables, make sure that they are not subject to any tension.

  • Page 68: 1150 Thermal Fan Assembly

    Remove the LCD unit in the direction shown by the arrow 1150 Thermal fan assembly For access, remove these FRUs in order: • “1010 Battery pack” on page 43 • “1020 Bottom slot cover” on page 44 • “1030 Hard disk drive” on page 45 •...
  • Page 69 Removal steps of thermal fan assembly Detach the connector in the direction shown by the arrow When installing: Make sure that the connector is attached firmly. Loosen the screws , but do not remove them. Chapter 7 Removing and replacing a FRU...
  • Page 70 Lift the thermal fan assembly in the direction shown by the arrow Attention: Be careful not to damage the connector. Attention: Do not handle the thermal fan assembly roughly. Improper handling can cause distortion or deformation and imperfect contact with components. When installing: Before you attach the thermal fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on the part marked as shown in the above illustration.

  • Page 71: 1160 Speaker Assembly

    1160 Speaker assembly For access, remove these FRUs in order: • “1010 Battery pack” on page 43 • “1020 Bottom slot cover” on page 44 • “1030 Hard disk drive” on page 45 • “1040 Optical drive” on page 47 •...
  • Page 72 Removal steps of DC-in sub card Remove the screws , and then remove the DC-in sub card in the direction shown by the arrow Step Screw (quantity) Color Torque Black M2 × 3 mm, flat-head, nylon-coated (2) 1.85 kgfcm Hardware Maintenance Manual...

  • Page 73: 2010 Lcd Front Bezel

    Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. If the Windows Certificate of Authentication label (COA) is attached to a part that is replaced, return the old part with the label attached to the customer, or provide a letter to the customer stating what the label was originally on the system and what the label part number, serial number, and product key were.
  • Page 74 • “1010 Battery pack” on page 43 • “1020 Bottom slot cover” on page 44 • “1030 Hard disk drive” on page 45 • “1040 Optical drive” on page 47 • “1050 Memory modules” on page 47 • “1060 PCI Express Mini Card for wireless LAN” on page 48 •...

  • Page 75: 2020 Integrated Camera

    Remove the LCD front bezel in the direction shown by the arrows When installing: Make sure that all the latches are attached firmly. Then secure the bezel with the screws. 2020 Integrated camera For access, remove these FRUs in order: •...

  • Page 76: 2030 Lcd Panel, Lcd Cable, And Hinges

    Removal steps of integrated camera Remove the integrated camera from the LCD cover as shown in the following illustration. Note: The integrated camera is stuck on the top center of the LCD cover. When installing: Stick the integrated camera to the top center of the LCD cover and adjust the placement to make sure that the connector is attached firmly.

  • Page 77: Color Torque Black

    Removal steps of LCD panel and LCD cable Remove the screws . Disconnect the integrated camera connector in the direction shown by the arrow . Then lift the LCD panel in the direction shown by the arrows Step Screw (quantity) Color Torque Black...

  • Page 78: 2040 Antenna Assembly

    Removal steps of hinges Peel off the adhesive tape and detach the connector. When installing: Make sure that the connector is attached firmly. 2040 Antenna assembly For access, remove these FRUs in order: • “1010 Battery pack” on page 43 •...
  • Page 79 Release the antenna cables from the cable guides of the LCD rear cover assembly and from the hinges in the direction shown by the arrows Cable routing: Route the antenna cables along the cable guides and secure the antenna boards with tapes. As you route the cables, make sure that they are not subject to any tension.
  • Page 80 Hardware Maintenance Manual...

  • Page 81: Chapter 8. Locations

    Chapter 8. Locations This chapter introduces the locations of the computer hardware components. Front view Figure 1. Lenovo B475e front view Integrated camera (on some models) Headphone jack Media card reader slot Wireless antennas (on some models) Status indicators Touch pad...

  • Page 82: Bottom View

    Bottom view Figure 2. Lenovo B475e bottom view Battery latch (manual) VGA port Battery pack Ethernet connector Battery latch (spring-loaded) HDMI port (on some models) Security keyhole USB connector ac power connector Bottom slot cover Fan louvers : The memory modules, hard disk drive, and wireless cards are located underneath the bottom slot cover.

  • Page 83: Chapter 9. Parts List

    “Miscellaneous parts” on page 83 • “ac power adapters” on page 84 • “Power cords” on page 84 Note: Each FRU is available for all types or models, unless specific types or models are specified. Overall © Copyright Lenovo 2012...

  • Page 84: Overall

    Table 3. Parts list—Overall FRU no. FRU (Overall) LCD unit (see “LCD FRUs” on page 79) 31049001 LB47 LED BOARD W/CABLE LB475B Upper Case W/TP 90201264 121001091 Battery, 2200mA 6cell, 48Wh 3S2P Sanyo L09S6Y02 3S2P 48Wh bty(LH)Comm01 Battery, 2200mA 6cell, 48Wh 3S2P Sanyo L09S6Y02 3S2P 48Wh bty(LH)Comm01 + EU lable 121500090 121001094 Battery, 2200mA 6cell, 48Wh 3S2P SMP/LG L09M6Y02 3S2P 48Wh bty(LH)Comm01...

  • Page 85: Lcd Frus

    – LA47 TOUCHPAD CABLE 50.4KZ02.001 31047648 – LA47 POWER BOARD CABLE 50.4KZ05.001 31047653 – LB47 TOUCHPAD BRACKET 31049004 LCD FRUs A 14-inch high-definition (HD) TFT LCD is used in Lenovo B475e models. See the table below. Chapter 9 Parts list...
  • Page 86 Table 4. Parts list - LCD FRU no. LB475B LCD Bezel W/Camera Hole 90201262 LB475B LCD Bezel WO/Camera Hole 90201263 LB47L LCD Hinge L&R 6K.4VDCS.001 90200215 LA48 Camera 1M56.18011.462/07.962/06.362 90200517 LB475B Camera 0.3M 90000510 LB47 LED BOARD W/CABLE 31049001 LB475B LCD Cover W/Antenna 2 90201261 31049000 LB47 LCD CABLE...

  • Page 87: Keyboard

    Table 4. Parts list - LCD (continued) FRU no. LED panel 14.0 HD Wedge Glossy LP140WH4-TLN1 18200156 LED panel 14.0 HD Wedge Glossy M140NWR2 R1 18004793 – LB47L LCD Mylar 40.4VD02.011 90200221 Keyboard Table 5. Parts list - Keyboard (Dafon) Language FRU no.
  • Page 88 Table 6. Parts list - Keyboard (Sunrex) Language FRU no. Arabic 25204476 Belgian 25204484 Brazilian Portuguese 25204477 Bulgarian 25204490 25204489 Czech, Slovak C& Nordics 25204483 Dutch 25204479 French 25204474 French, English 25204470 German 25204475 Greek 25204480 Hebrew 25204481 Hungarian 25204482 Icelandic 25204485 Indian...

  • Page 89: Miscellaneous Parts

    Table 7. Parts list - Keyboard (Chicony) (continued) Language FRU no. C& Nordics 25204423 Dutch 25204419 French 25204415 French, English 25204411 German 25204416 Greek 25204420 Hebrew 25204421 Hungarian 25204422 Indian 25204431 Icelandic 25204425 Italian 25204405 Japanese 25204404 Korean 25204412 Latin 25204410 Portuguese 25204409...

  • Page 90: Ac Power Adapters

    36001653 36001672 HIPRO LN-A0403A3C Power cords A Lenovo power cord for a specific country or region is usually available only in that country or region. Table 11. Parts list - 3-pin power cords (Linetek) Country or region FRU no. Argentina 145000599 •...
  • Page 91 Table 11. Parts list - 3-pin power cords (Linetek) (continued) FRU no. Country or region Korea 145000590 • LINETEK LS15+H05VV-F+LP-E04A 1 m South Africa 145000586 • LINETEK LS15+H03VV-F+PE-364 1 m Switzerland 145000597 • LINETEK LS15+H03VV-F+LP-37 1 m Taiwan 145000588 • LINETEK LS15+VCTF+LP-53 1 m U.K.
  • Page 92 Table 12. Parts list - 3-pin power cords (Longwell) (continued) FRU no. Country or region South Africa 145000554 • Longwell LP-39+H03VV-F+LS-18 1 Switzerland 145000565 • Longwell LP-37+H03VV-F+LS-18 1 m Taiwan 145000556 • Longwell LP-71+VCTF+LS-33 1 m U.K. 145000561 • Longwell LP-61L+H03VV-F+LS-18 1 m 145000562 •...
  • Page 93 Table 13. Parts list - 3-pin power cords (Volex) (continued) FRU no. Country or region Switzerland 145000524 • VOLEX MP232+H03VV-F+VAC5S 1 m Taiwan 145000531 • VOLEX TW15CS3+VCTF+VAC5S 1 m U.K. 145000605 • VOLEX MP5004+H03VV-F+VAC5S 1 m 145000537 • Volex US15S3+SPT-2 ＋VAC5S 1 m Table 14.
  • Page 94 Hardware Maintenance Manual...

  • Page 95: Appendix A. Notices

    Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.

  • Page 96: Electronic Emissions Notices

    For electronic emission 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 a trademark of the Microsoft group of companies.
  • Page 98 Part Number: Printed in China (1P) P/N: *1P*...

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