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Lenovo B50-10 Hardware Maintenance Manual
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Lenovo B50-10 Hardware Maintenance Manual

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  • Page 1 Lenovo B50-10 Hardware Maintenance Manual...
  • Page 2 Notes: • Before using this information and the product it supports, be sure to read the general information under “Notices” on page 69. First Edition (May. 2015) © Copyright Lenovo 2015. All rights reserved. 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. © 2015 Lenovo...

  • Page 3: Table Of Contents

    Power-on password ..........24 Hard-disk password ..........24 Administrator password ........24 Power management ........25 Screen blank state ..........25 Putting the computer to sleep or shutting it down ..........25 Putting your computer to sleep ......25 Shutting down the computer ......25 Lenovo B50-10 ..........26 Specifications ..........26 Status indicators ........... 28 Fn key combinations/Hotkeys....... 29 FRU replacement notices ......30 Screw notices ..........30 Removing and replacing an FRU ....31 1010 Keyboard ..........32 1020 Optical drive ..........34 1030 Base cover .

  • Page 4: About This Manual

    • The product-specific section includes service, reference, and product-specific parts information. Important: This manual is intended only for trained servicers who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively. Before servicing a Lenovo product, make sure to read all the information under “Safety information” on page 1 and “Important service information” on page 16.

  • Page 5: Safety Information

    Safety information Safety information This chapter presents the following safety information that you need to get familiar with before you service a Lenovo B50-10 computer: • “General safety” on page 2 • “Electrical safety” on page 3 • “Safety inspection guide” on page 5 • “Handling devices that are sensitive to electrostatic discharge” on page 6 • “Grounding requirements” on page 6 • “Safety notices: multilingual translations” on page 7 • “Laser compliance statement” on page 14...

  • Page 6: General Safety

    Lenovo B50-10 Hardware Maintenance Manual General safety Follow these rules below to ensure general safety: • Observe a good housekeeping in the area where the machines are put during and after the maintenance. • When lifting any heavy object: 1. Make sure that you can stand safely without slipping. 2. Distribute the weight of the object equally between your feet. 3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift it. 4. Lift it by standing or pushing up with your leg muscles; this action could avoid the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you. • Do not perform any action that causes hazards to the customer, or that makes the machine unsafe.

  • Page 7: Electrical Safety

    Safety information Electrical safety Observe the following rules when working on electrical equipments. Important: Use only approved tools and test equipments. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have rubber floor mats near their machines that contain small conductive fibers to decrease electrostatic discharges.
  • Page 8 Lenovo B50-10 Hardware Maintenance Manual • Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. • Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage. • Do not service the following parts with the power on when they are removed from their normal operating places in a machine: – Power supply units – Pumps – Blowers and fans – Motor generators and similar units. (This practice ensures correct grounding of the units.) • If an electrical accident occurs: – Caution: do not become a victim yourself.

  • Page 9: Safety Inspection Guide

    The power cord should be the type specified in the parts list. c. Insulation must not be frayed or worn. 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. 8. Check for worn, frayed, or pinched cables.

  • Page 10: Handling Devices That Are Sensitive To Electrostatic Discharge

    Lenovo B50-10 Hardware Maintenance Manual Handling devices that are sensitive to electrostatic discharge Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge. Notes: 1. Use product-specific ESD procedures when they exceed the requirements noted here.

  • Page 11: Safety Notices: Multilingual Translations

    Safety information Safety notices: multilingual translations The safety notices in this section are provided in English, French, German, Hebrew, Italian, Japanese, and Spanish. Safety notice 1 Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer.
  • Page 12 Lenovo B50-10 Hardware Maintenance Manual Safety notice 2 DANGER Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short- circuit it. Dispose of the battery as required by local ordinances or regulations.
  • Page 13 Safety information Safety notice 3 DANGER The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack.
  • Page 14 Lenovo B50-10 Hardware Maintenance Manual Safety notice 4 DANGER The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations.
  • Page 15 Safety information Safety notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water at least for 15 minutes. Seek medical care if any symptoms caused by the fluid are present after washing. Si le panneau d’affichage à...
  • Page 16 Lenovo B50-10 Hardware Maintenance Manual Safety notice 6 DANGER To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. Afin d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d’alimentation.
  • Page 17 Safety information Safety notice 8 DANGER Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension, débranchez tous les cordons d’alimentation des socles de prise de courant, retirez la batterie et déconnectez tous les cordons d’interface.

  • Page 18: Laser Compliance Statement

    Lenovo B50-10 Hardware Maintenance Manual Laser compliance statement Some models of Lenovo computer are equipped from the factory with an optical storage device such as a CD-ROM drive or a DVD-ROM drive. Such devices are also sold separately as options. If one of these drives is installed, it is certified in the U.S. to conform to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. Elsewhere, the drive is certified to conform to the requirements of the International Electrotechnical Commission (IEC) 825 and CENELEC EN 60 825 for Class 1 laser products.
  • Page 19 Safety information A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may contain an embedded Class 3A or Class 3B laser diode. Note the following: DANGER Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. Radiação por raio laser ao abrir. Não olhe fixo no feixe de luz, não olhe diretamente por meio de instrumentos óticos e evite exposição direta com o feixe de luz.

  • Page 20: Important Service Information

    Strategy for replacing FRUs Before replacing parts: Make sure that all software fixes, drivers, and BIOS downloads are installed before replacing any FRUs listed in this manual. After a system board is replaced, ensure that the latest BIOS is loaded to the system board before completing the service action. To download software fixes, drivers, and BIOS, follow the steps below: 1. Go to http://support.lenovo.com. 2. Enter the serial number or select a product or use Lenovo smart downloading. 3. Select the BIOS/Driver/Applications and download. 4. Follow the directions on the screen and install the necessary software.

  • Page 21: Strategy For Replacing A Hard Disk Drive

    Important service information Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs: • If you are instructed to replace an FRU, but the replacement does not solve the problem, reinstall the original FRU before you continue. • Some computers have both a processor board and a system board. If you are instructed to replace either of them, and replacing one of them does not solve the problem, reinstall that board, and then replace the other one. • If an adapter or a device consists of more than one FRU, any of the FRUs may be the cause of the error. Before replacing the adapter or device, remove the FRUs one by one to see if the symptoms change. Replace only the FRU that changed the symptoms. Attention: The setup configuration on the computer you are servicing may have been customized. Running Automatic Configuration may alter the settings. Note the current configuration settings (using the View Configuration option); then, when service has been completed, verify that those settings remain in effect.

  • Page 22: Important Information About Replacing Rohs Compliant Frus

    Note: RoHS and non-RoHS FRU part numbers with the same fit and function are identified with unique FRU part numbers. Lenovo plans to transit to RoHS compliance well before the implementation date and expects its suppliers to be ready to support Lenovo’s requirements and schedule in the EU. Products sold in 2005 and 2006 will contain some RoHS compliant FRUs. The following statement pertains to these products and any product Lenovo produces containing RoHS compliant FRUs.

  • Page 23: General Checkout

    General checkout General checkout This chapter presents the following information: • “What to do first” on page 20 • “Power system checkout” on page 21 Before you go to the checkout, make sure to read the following important notes: Important notes: • Only certified trained personnel can service the computer. • Before replacing any FRU, read the entire page on removing and replacing FRUs. • Carefully remove screws for reuse when replacing FRUs. • Be extremely careful during such write operations as copying, saving, or formatting. Drives in the computer that you are servicing sequence might have been altered.

  • Page 24: What To Do First

    Lenovo B50-10 Hardware Maintenance Manual What to do first When you do return an FRU, you must include the following information in the parts exchange form or parts return form that you attach to it: 1. Name and phone number of servicer 2. Date of service 3. Date on which the machine failed 4. Date of purchase 5. Procedure index and page number in which the failing FRU was detected 6. Failing FRU name and part number 7. Machine type, model number, and serial number 8. Customer’s name and address Note for warranty: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer.

  • Page 25: Power System Checkout

    • If the computer does not charge during operation, go to “Checking operational charging”. To check the AC adapter, follow the steps below: 1. Unplug the AC adapter cable from the computer. 2. Measure the output voltage at the plug of the AC adapter cable. See the following figure: Voltage (V DC) Note: Output voltage for the AC adapter pin No. 2 may differ from the one you are servicing. 3. If the voltage is not correct, replace the AC adapter. 4. If the voltage is acceptable, do the following: • Replace the system board. • If the problem persists, go to “Lenovo B50-10” on page 26. Note: Noise from the AC adapter does not always indicate a defect.

  • Page 26: Checking Operational Charging

    Lenovo B50-10 Hardware Maintenance Manual 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. If the battery status indicator or icon does not light on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack. If the charge indicator still does not light on, replace the system board. Then reinstall the battery pack. If it is still not charged, go to the next section. Checking the battery pack Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or...

  • Page 27: Related Service Information

    Recovery. For details of OneKey Recovery System, see the User Guide for Lenovo OneKey Recovery System . Note: This will delete all the new data on the system partition (C drive), which is not recoverable. Make sure to back up your critical data before you perform this...

  • Page 28: Passwords

    Lenovo B50-10 Hardware Maintenance Manual Passwords As many as three passwords may be needed for any Lenovo computer: the power-on password (POP), the hard disk password (HDP), and the administrator password. If any of these passwords has been set, a prompt for it appears on the screen whenever the computer is turned on. The computer does not start until the password is entered.

  • Page 29: Power Management

    Related service information 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 (standby), and shut down. Screen blank state If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off. You can also turn off the LCD backlight by pressing To end screen blank state and resume normal operation, press any key. Putting the computer to sleep or shutting it down When you have finished working with your computer, you can put it to sleep or shut it down.

  • Page 30: Lenovo B50-10

    Lenovo B50-10 Hardware Maintenance Manual Lenovo B50-10 This chapter presents the following product-specific service references and product-specific parts information: • “Specifications” on page 26 • “Status indicators” on page 28 • “Fn key combinations/Hotkeys” on page 29 • “FRU replacement notices” on page 30 • “Removing and replacing an FRU” on page 31 • “Locations” on page 59 • “Parts list” on page 61 Specifications The following table lists the specifications of the Lenovo B50-10: Table 1. Specifications Feature Description Processor See the system properties of your computer.You can do this as follows: • Windows 8.1: Click Control Panel, then click Hardware and...
  • Page 31 Lenovo B50-10 Table 1. Specifications (continued) Feature Description Ethernet (on the • 10/100 Mbps system board) Bluetooth • Optional wireless Keyboard • 6 row Lenovo Frame Keyboard Integrated • 0.3 M camera Battery • Li-Cylinder, 3 Cells, 24 Wh AC adapter • 20 V, 45 W Pre-installed • Windows 8.1 64bit/ Windows 8.1 with Bing 64bit operating • Windows 10 64bits system • Free-DOS...

  • Page 32: Status Indicators

    Lenovo B50-10 Hardware Maintenance Manual Status indicators The system status indicators below show the computer status: Table 2. Status indicators Indicator Charge Indicator Meaning status status On (solid white) The computer is powered on. Power Blinking The computer is in sleep mode. The computer is powered off. Charging The battery has more than 80% charge. On (solid white) Discharging The battery has more than 20% charge. The battery has between 5% and 20% On (solid amber) Discharging charge. The battery has between 20% and 80% charge. When the battery reaches 80% Blinking slowly Charging charge, the light will stop blinking. Battery (white) However, charging will continue until the battery is fully charged.

  • Page 33: Fn Key Combinations/Hotkeys

    Lenovo B50-10 Fn key combinations/Hotkeys The following table shows the function of each combination of Fn with a function key. Table 3. Fn key combinations Fn + PrtSc: Activates the system request. Fn + Pause: Activates the break function. Fn + Insert: Enables/disables the scroll lock. Fn + Delete: Enables/disables the numeric keypad.

  • Page 34: Fru Replacement Notices

    Lenovo B50-10 Hardware Maintenance Manual FRU replacement notices This section presents notices related to removing and replacing parts. Read this section carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In the Lenovo 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.

  • Page 35: Removing And Replacing An Fru

    Lenovo B50-10 Removing and replacing an FRU This section presents exploded figures with the instructions to indicate how to remove and replace the FRU. Make sure to observe the following general rules: 1. Do not attempt to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts. 2. Before replacing any FRU, review “FRU replacement notices” on page 30. 3. Begin by removing any FRUs that have to be removed before the failing FRU. Any of such FRUs are listed at the top of the page. Remove them in the order in which they are listed. 4. Follow the correct sequence in the steps to remove the FRU, as given in the figures by the numbers in square callouts. 5. When turning a screw to replace an FRU, turn it in the direction as given by the arrow in the figure. 6. When removing the FRU, move it in the direction as given by the arrow in the figure. 7. To put the new FRU in place, reverse the removal procedures and follow any of the notes that pertain to replacement. For information about...

  • Page 36: 1010 Keyboard

    Lenovo B50-10 Hardware Maintenance Manual 1010 Keyboard Figure 1. Removal steps of keyboard Remove the screws 1. Step Screw (quantity) Color Torque M2 × 6 mm, Phillips head, nylok-coated (3) Black 1.85+/-0.15 kgf/cm LOW TO KB Push the keyboard with the tip of an unfolded paper clip (or similar object without a sharp tip) through the screw hole on the back cover. Loosen the...
  • Page 37 Lenovo B50-10 Figure 1. Removal steps of keyboard (continued) Lift the keyboard slightly 3, detach the connector in the direction shown by arrows 4 and 5. Then remove the keyboard. When installing: Make sure that the connector is attached firmly.

  • Page 38: 1020 Optical Drive

    Lenovo B50-10 Hardware Maintenance Manual 1020 Optical drive For access, remove this FRU: • “1010 Keyboard” on page 32 Figure 2. Removal steps of optical drive Remove the screw 1.Then pull the optical drive out in the direction shown by arrow 2. Step Screw (quantity) Color Torque M2 × 6 mm, Phillips head, nylok-coated (1) Black 1.85+/-0.15 kgf/cm ODD BRKT TO LOWER...
  • Page 39 Lenovo B50-10 Figure 2. Removal steps of optical drive (continued) Remove the screws 3, then carefully remove the optical drive bracket and bezel in the directions shown by arrows 4 and 5. Step Screw (quantity) Color Torque M2 × 3 mm, Phillips head, nylok-coated (1) Black 1.85+/-0.15 kgf/cm ODD BRK TO ODD MODULE...

  • Page 40: 1030 Base Cover

    Lenovo B50-10 Hardware Maintenance Manual 1030 Base cover For access, remove these FRUs in order: • “1010 Keyboard” on page 32 • “1020 Optical drive” on page 34 Figure 3. Removal steps of base cover Remove the screws Step Screw (quantity) Color Torque M2 × 6 mm, Phillips head, nylok-coated (7) Black 1.85+/-0.15 kgf/cm UPPER TO MB TO LOWER...
  • Page 41 Lenovo B50-10 Figure 3. Removal steps of base cover (continued) Remove the screws 2 and 3 from the bottom. Step Screw (quantity) Color Torque M2.5 × 6 mm, Phillips head, nylok-coated (10) Black 3.0+/-0.3 kgf/cm LOW TO UPPER M2 × 2 mm, big flat head, nylok-coated (2) Black 1.85+/-0.15 kgf/cm LOW TO UPPER Use a plastic prying tool to aid in separation, then remove the base cover in the directions shown by arrows 4 and 5.
  • Page 42 Lenovo B50-10 Hardware Maintenance Manual Note: Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. When you replace the base cover, you need to apply the following labels: The following labels need to be peeled off from the old base cover, and need to be put on the new base cover. KCC label WLAN/BT for Brazil BIS label for India Indonesia D side label WLAN/BT for Malaysia/Indonesia Rating label WLAN/BT for South Africa Rating label WLAN/BT for Israel/US/CA/TW GML Label For some models, you also need to apply one or two FCC labels. Check the old base cover; if it has one or two FCC labels, find duplicates of them in the...

  • Page 43: 1040 Battery Pack

    Lenovo B50-10 1040 Battery pack For access, remove these FRUs in order: • “1010 Keyboard” on page 32 • “1020 Optical drive” on page 34 • “1030 Base cover” on page 36 DANGER Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode. Figure 4. Removal steps of battery pack Detach the battery pack connector in the direction shown by arrow 1, remove the screws 2.
  • Page 44 Lenovo B50-10 Hardware Maintenance Manual Figure 4. Removal steps of battery pack (continued) Remove the battery pack in the direction shown by arrow 3. When installing: Make sure the battery pack connector is attached firmly.

  • Page 45: 1050 Hard Disk Drive

    Lenovo B50-10 1050 Hard disk drive For access, remove these FRUs in order: • “1010 Keyboard” on page 32 • “1020 Optical drive” on page 34 • “1030 Base cover” on page 36 • “1040 Battery pack” on page 39 Attention: • Do not drop the hard disk drive or apply any physical shock to it. The hard disk drive is sensitive to physical shock. Improper handling can cause damage and permanent loss of data. • Before removing the drive, suggest the customer to backup all the information on it if possible.
  • Page 46 Lenovo B50-10 Hardware Maintenance Manual Figure 5. Removal steps of hard disk drive (continued) Detach the HDD connector in the direction shown by arrow 2. Remove the hard disk drive from the slot in the direction shown by arrow 3. When installing: Make sure that the HDD connector is attached firmly. Remove the screws 4, and then take out the metal frame. Step Screw (quantity) Color Torque M3 × 3 mm, Phillips head, nylok-coated (4) Silver 3.0+/-0.3kgf/cm HDD BRK TO HDD...

  • Page 47: 1060 Pci Express Mini Card For Wireless Lan

    • “1030 Base cover” on page 36 • “1040 Battery pack” on page 39 Important: The preinstalled WLAN module may only be replaced with a Lenovo approved module in order to comply with FCC and IC regulations. Refer to “Table 5. Parts list—Overall” on page 63 for Lenovo part numbers for the approved modules. Figure 6. Removal steps of PCI Express Mini Card for wireless LAN Disconnect the wireless LAN cable 1, and then remove the screw 2.
  • Page 48 Lenovo B50-10 Hardware Maintenance Manual Figure 6. Removal steps of PCI Express Mini Card for wireless LAN (continued) Remove the card in the direction shown by arrow 3.

  • Page 49: 1070 Dimm

    Lenovo B50-10 1070 DIMM For access, remove these FRUs in order: • “1010 Keyboard” on page 32 • “1020 Optical drive” on page 34 • “1030 Base cover” on page 36 • “1040 Battery pack” on page 39 Figure 7. Removal steps of DIMM Release the two latches on both edges of the socket at the same time in the direction shown by arrows 1, and then unplug the DIMM in the direction shown by arrow 2. When installing: Insert the notched end of the DIMM into the socket. Push the DIMM firmly, and pivot it until it snaps into place. Make sure that it is firmly fixed in the slot and difficult to move.

  • Page 50: 1080 Speakers

    Lenovo B50-10 Hardware Maintenance Manual 1080 Speakers For access, remove these FRUs in order: • “1010 Keyboard” on page 32 • “1020 Optical drive” on page 34 • “1030 Base cover” on page 36 • “1040 Battery pack” on page 39 Figure 8. Removal steps of speakers Detach the speaker connector in the direction shown by arrow 1. Remove the speaker 2. When installing: Make sure that the speaker connector is attached firmly.

  • Page 51: 1090 System Board

    Lenovo B50-10 1090 System board 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 52 Lenovo B50-10 Hardware Maintenance Manual Figure 9. Removal steps of system board (continued) Detach the two connectors in the directions shown by arrows 2. Remove the screws 3. Step Screw (quantity) Color Torque M2 × 3 mm, Phillips head, nylok-coated (2) Black 1.85+/-0.15 kgf/cm MB TO UPPER Remove the system board in the direction shown by arrow 4.

  • Page 53: 1100 Heat Sink Assembly

    Lenovo B50-10 1100 Heat sink assembly For access, remove these FRUs in order: • “1010 Keyboard” on page 32 • “1020 Optical drive” on page 34 • “1030 Base cover” on page 36 • “1040 Battery pack” on page 39 • “1050 Hard disk drive” on page 41 • “1060 PCI Express Mini Card for wireless LAN” on page 43 • “1080 Speakers” on page 46 • “1090 System board” on page 47 Figure 10. Removal steps of heat sink assembly Remove the screws 1. Step Screw (quantity) Color Torque M2 × 4, Phillips head, nylok-coated (4) Silver 1.85+/-0.15 kgf/cm THERMAL MODULE TO CPU BRK Lift the heat sink in the direction shown by arrow 2.
  • Page 54 Lenovo B50-10 Hardware Maintenance Manual Figure 10. Removal steps of heat sink assembly (continued) When installing: Before you attach the heat sink assembly to the computer, apply thermal grease, at an amount of 0.2 grams, to the part shown in the figure above. Either too much or too little grease application can cause a thermal problem due to imperfect contact with a component.

  • Page 55: 1110 Upper Case

    Lenovo B50-10 1110 Upper case For access, remove these FRUs in order: • “1010 Keyboard” on page 32 • “1020 Optical drive” on page 34 • “1030 Base cover” on page 36 • “1040 Battery pack” on page 39 • “1050 Hard disk drive” on page 41 • “1060 PCI Express Mini Card for wireless LAN” on page 43 • “1080 Speakers” on page 46 • “1090 System board” on page 47 Figure 11. Removal steps of upper case Remove the screws 1. Step Screw (quantity) Color Torque M2.5 × 6 mm, Phillips head, nylok-coated (5) Black 3.0+/-0.3 kgf/cm HINGE BRK to UPPER Open the hinge in the direction shown by arrows 2. Then release the cables...
  • Page 56 Lenovo B50-10 Hardware Maintenance Manual Figure 11. Removal steps of upper case (continued) When installing: Route the 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. Rotate the upper case in the direction shown by arrows 4. Then remove the upper case from LCD unit in the direction shown by arrow 5.
  • Page 57 Lenovo B50-10 Figure 11. Removal steps of upper case (continued) Remove the screw 6. Then remove the power board in the direction shown by arrow 7. Step Screw (quantity) Color Torque M2 × 3 mm, Phillips head, nylok-coated (1) Black 1.85+/-0.15 kgf/cm POWER BOARD TO UPPER/POWER PCB to LOGIC UP Remove the DC in cable in the direction shown by arrow 8.

  • Page 58: 1120 Lcd Unit

    Lenovo B50-10 Hardware Maintenance Manual 1120 LCD unit For access, remove these FRUs in order: • “1010 Keyboard” on page 32 • “1020 Optical drive” on page 34 • “1030 Base cover” on page 36 • “1040 Battery pack” on page 39 • “1050 Hard disk drive” on page 41 • “1060 PCI Express Mini Card for wireless LAN” on page 43 • “1080 Speakers” on page 46 • “1090 System board” on page 47 • “1110 Upper case” on page 51 Figure 12. Removal steps of LCD unit Remove the LCD front bezel in the direction shown by arrows 1.
  • Page 59 Lenovo B50-10 Figure 12. Removal steps of LCD unit (continued) Remove the screws 2. Lift the LCD panel slightly 3. Peel off the adhesive tape and detach the connector in the direction shown by arrow 4. Then remove the LCD panel. Step Screw (quantity)

  • Page 60: 1130 Lcd Hinges

    Lenovo B50-10 Hardware Maintenance Manual 1130 LCD hinges For access, remove these FRUs in order: • “1010 Keyboard” on page 32 • “1020 Optical drive” on page 34 • “1030 Base cover” on page 36 • “1040 Battery pack” on page 39 • “1050 Hard disk drive” on page 41 • “1060 PCI Express Mini Card for wireless LAN” on page 43 • “1080 Speakers” on page 46 • “1090 System board” on page 47 • “1110 Upper case” on page 51 • “1120 LCD unit” on page 54 Figure 13. Removal steps of LCD hinges Remove the screws 1 and 2. Then release the two hinges in the direction shown by arrows 3. Step Screw (quantity)

  • Page 61: 1140 Edp Cable, Antenna Assembly, And Integrated Camera

    Lenovo B50-10 1140 EDP cable, antenna assembly, and integrated camera For access, remove these FRUs in order: • “1010 Keyboard” on page 32 • “1020 Optical drive” on page 34 • “1030 Base cover” on page 36 • “1040 Battery pack” on page 39 • “1050 Hard disk drive” on page 41 • “1060 PCI Express Mini Card for wireless LAN” on page 43 • “1080 Speakers” on page 46 • “1090 System board” on page 47 • “1110 Upper case” on page 51 • “1120 LCD unit” on page 54 • “1130 LCD hinges” on page 56 Figure 14. Removal steps of EDP cable, antenna assembly, and integrated camera Detach the connector in the direciton shown by arrow 1.
  • Page 62 Lenovo B50-10 Hardware Maintenance Manual Figure 14. Removal steps of EDP cable, antenna assembly, and integrated camera (continued) Remove the EDP cable and antenna assembly in the direction shown by arrow 2 and 3. Remove the camera in the direction shown by arrow 4. 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 of it to make sure the connector is attached firmly.

  • Page 63: Locations

    Lenovo B50-10 Locations Front view and right-side view 1 Integrated camera 2 Wireless LAN antennas 3 Computer display 4 Speaker 5 Power button 6 Built-in microphone 7 Touchpad 8 Kensington lock slot 9 Optical drive (on select models)

  • Page 64: Bottom And Left-Side View

    Lenovo B50-10 Hardware Maintenance Manual Bottom and Left-side view 1 Louvers 2 Memory card slot 3 System status indicators Note: For the description of each indicator, see “Status indicators” on page 28. 4 Novo button 5 Combo audio jack 6 USB port 7 RJ-45 port 8 HDMI port 9 AC power adapter jack...

  • Page 65: Parts List

    Lenovo B50-10 Parts list This section presents the following service parts: • “Overall” on page 62 • “LCD FRUs” on page 64 • “Keyboard” on page 66 • “Miscellaneous parts” on page 67 • “AC adapters” on page 67 • “Screws” on page 68 Note: Each FRU is available for all types or models, unless specific types or models are specified. Attention: Do not attempt to replace an FRU on your own. If an FRU is damaged, contact a Lenovo authorized servicer or a marketing representative for replacement or repair. Only qualified technicians can inspect or repair this product.

  • Page 66: Overall

    Lenovo B50-10 Hardware Maintenance Manual Overall...
  • Page 67 Lenovo B50-10 Table 5. Parts list—Overall No. FRU FRU no. a-e See “Miscellaneous parts” on page 67. LCD unit (see “LCD FRUs” on page 64.) Keyboard (see “Keyboard” on page 66.) Upper Cover C B50-10 W/TP & TAPE 5CB0J65073 Power Board C IP 100-14 W/Cable 5C50J30833 Battery, CP/L L14C3A01 10.8V24Wh3cell bty 5B10H42764 Battery, SY L14S3A01 10.8V24Wh3cell bty 5B10H42831 MB C Idea Pad 100-15 NOK N2940 5B20J30802 MB C Idea Pad 100-15 WIN N2940 5B20J30754 MB C Idea Pad 100-15 NOK N2840 5B20J30808 MB C Idea Pad 100-15 WIN N2840 5B20J30760 MB C Idea Pad 100-15 NOK N3540 5B20J30714 MB C Idea Pad 100-15 WIN N3540 5B20J30778 Heatsink C Idea Pad 100-14 5H40J30729 Optical drive, PLDS DA-8A6SH 9.0mm Slim Tray...

  • Page 68: Lcd Frus

    Lenovo B50-10 Hardware Maintenance Manual LCD FRUs In Lenovo B50-10, there are following types of LCDs. • “15.6-in. HD LED”...
  • Page 69 Lenovo B50-10 Table 6. Parts list—LCD FRUs No. FRU FRU no. LCD BEZEL C B50-10 W/MAGNET 5CB0J65075 LG LP156WHB-TPGB HDT AG F NB 5D10H91341 AUO B156XTN04.6 1A HD AG F NB 5D10H20140 INX N156BGE-EA2 HD AG S NB 5D10G94547 SDC LTN156AT39-401 HD AG F NB 5D10H15381 BOE N156WHM-N22 HD AG F NB 5D10G74898 Hinge C Idea Pad 100-15 5H50J30810 EDP Cable C Idea Pad 100-15 5C10J30756 Antenna C Idea Pad 100-15 5A30J30805 Camera C Idea Pad 100-14 5C20J30743 LCD Cover C B50-10 5CB0J65074...

  • Page 70: Keyboard

    Lenovo B50-10 Hardware Maintenance Manual Keyboard Table 7. Parts list—Keyboard Language KB C Idea Pad 100-15 US 5N20J30779 KB C Idea Pad 100-15 GK 5N20J30720 KB C Idea Pad 100-15 INT'E 5N20J30771 KB C Idea Pad 100-15 KR 5N20J30716 KB C Idea Pad 100-15 TCH 5N20J30772 KB C Idea Pad 100-15 RU 5N20J30715 KB C Idea Pad 100-15 AR-E 5N20J30767 KB C Idea Pad 100-15 HE 5N20J30816 KB C Idea Pad 100-15 THAI 5N20J30766 KB C Idea Pad 100-15 INDIA 5N20J30817 KB C Idea Pad 100-15 UK 5N20J30763 KB C Idea Pad 100-15 IT 5N20J30731 KB C Idea Pad 100-15 SP 5N20J30783 KB C Idea Pad 100-15 TR 5N20J30723 KB C Idea Pad 100-15 PO...

  • Page 71: Miscellaneous Parts

    Lenovo B50-10 Miscellaneous parts Table 8. Parts list—Miscellaneous parts FRU no. System miscellaneous parts: • (a) ODD Bracket C Idea Pad 100-15 5B40J30801 • (b) ODD Door C Idea Pad 100-15 5B30J30750 • (c) HDD Bracket C Idea Pad 100-15 5B40J30765 Cable miscellaneous parts: • (d) Touchpad Cable C Idea Pad 100-14 5C10J30791 • (e) DC-IN Cable C Idea Pad 100-14 5C10J30784 Note: Italicized letters in parentheses are references to the exploded view in “Overall” on page 62. AC adapters Table 9. Parts list—AC adapters FRU no. Delta ADP-45DW AA 20V2.25A adapter 5A10H43620 Delta ADP-45DW JA 20V2.25A adapter...

  • Page 72: Screws

    Lenovo B50-10 Hardware Maintenance Manual Screws Table 10. Parts list—screws FRU no. Screw Pack C Idea Pad 100-15 5S10J30807...

  • Page 73: Notices

    Notices Notices Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local 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. However, it is the...

  • Page 74: Trademarks

    Lenovo B50-10 Hardware Maintenance Manual Trademarks The following terms are trademarks or registered trademarks of Lenovo in the United States, other countries, or both. Lenovo OneKey Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both. Other company, products, or service names may be trademarks or service marks of others.

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