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Lenovo M50-70 Hardware Maintenance Manual
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Lenovo M50-70 Hardware Maintenance Manual

Lenovo M50-70 Hardware Maintenance Manual

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Lenovo M50-70/M50-80
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Summary of Contents for Lenovo M50-70

  • Page 1 Lenovo M50-70/M50-80 Hardware Maintenance Manual...
  • Page 2 • Before using this information and the product it supports, be sure to read the general information under “Notices” on page 84. • This manual applies to the following models: Lenovo M50-70/M50-80. The illustrations used in this manual are for Lenovo M50-70 unless otherwise stated.

  • 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 ......26 Lenovo M50-70/M50-80 ......27 Specifications ..........27 Status indicators ........... 29 Fn key combinations........30 FRU replacement notices ......31 Screw notices ..........31 Removing and replacing an FRU ....32 1010 Optical drive ..........33 1020 Keyboard ..........35 1030 Base cover ..........37...

  • 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 M50-70/M50-80 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

    M50-70/M50-80 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 M50-70/M50-80 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

    M50-70/M50-80 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 M50-70/M50-80 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 M50-70/M50-80 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 M50-70/M50-80 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

    M50-70/M50-80 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

    Electronic Equipment Directive (2002/95/EC) is a European Union legal requirement affecting the global electronics industry. RoHS requirements must be implemented on Lenovo products placed on the market after June 2006. Products on the market before June 2006 are not required to have RoHS compliant parts.

  • 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

    M50-70/M50-80 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: 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 M50-70/M50-80” on page 27. Note: Noise from the AC 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.

  • Page 26: Checking The Battery Pack

    M50-70/M50-80 Hardware Maintenance Manual 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 from having a shortened life. To check your battery, move your cursor to the Power Meter icon in the icon ® tray of the Windows taskbar and wait for a moment (but do not click it), and the percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon. Note: If the battery pack becomes hot, it may not be able to be charged. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.

  • Page 27: Related Service Information

    Restore of factory default The Lenovo M50-70/M50-80 computers come with pre-installed OneKey Recovery System. In order to save application files and the initial backed up files of the system, the hard disk in a Lenovo computer includes a hidden partition when it is shipped. If you need to restore the system to the point of your first boot up, just enter Lenovo OneKey Recovery System and run System Recovery. For details of OneKey Recovery System, see the User Guide for Lenovo OneKey Recovery System .

  • Page 28: Passwords

    M50-70/M50-80 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: Shutting Down The Computer

    M50-70/M50-80 Hardware Maintenance Manual Shutting down the computer If you are not going to use your computer for a long time, shut it down. To shut down your computer: • Windows 7: Click Start → Shut down. • Windows 8.1: - Open the charms bar, then select Settings → Power → Shut down. - Right-click the Start button in the lower-left corner and select Shut down or sign out → Shut down. - Select → Shut down in the upper-right corner of the Start screen. Note: The operation depends on the BIOS setup. Please refer to the actual...

  • Page 31: Lenovo M50-70/M50-80

    • “FRU replacement notices” on page 31 • “Removing and replacing an FRU” on page 32 • “Locations” on page 69 • “Parts list” on page 71 Specifications The following table lists the specifications of the Lenovo M50-70/M50-80: Table 1. Specifications Feature Description Processor •...
  • Page 32 M50-70/M50-80 Hardware Maintenance Manual Table 1. Specifications (continued) Feature Description I/O port • Combo audio jack × 1 • RJ45 × 1 • HDMI port × 1 • S/PDIF jack × 1 • USB 2.0 port × 2, USB 3.0 port × 1 •...

  • Page 33: Status Indicators

    Lenovo M50-70/M50-80 Status indicators The system status indicators below show the computer status: Table 2. Status indicators Indicator Symbol Indicator Meaning status The battery has a charge between Green 20% and 100% and the computer is powered on. The battery has a charge between Blinking green 20% and 100% and the computer is in sleep or hibernate mode. Battery The battery has a charge of 20% or Amber less and the computer is powered on. The battery has a charge of 20% or Blinking amber less and the AC power adapter is connected to the computer. The computer is powered off.

  • Page 34: Fn Key Combinations

    M50-70/M50-80 Hardware Maintenance Manual Fn key combinations The following table shows the function of each combination of Fn with a function key. Table 3. Fn key combinations Mutes/unmutes the sound. Decreases the volume level. Increases the volume level. Closes the currently active window. Refreshes the desktop or the currently active window. Enables/disables the touchpad. Enables/disables Airplane mode. Displays all currently active apps. Turns on/off the backlight of the LCD screen. Toggles the display between the computer and an external device. Decreases the display brightness. Increases the display brightness.

  • Page 35: Fru Replacement Notices

    Lenovo M50-70/M50-80 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. • They are harder to tighten. Do the following when you service this machine: • Keep the screw kit in your tool bag.

  • Page 36: Removing And Replacing An Fru

    Before touching it, establish personal grounding by touching a ground point with one hand or using an electrostatic discharge (ESD) strap (P/N 6405959) to remove potential shock reasons. Notes: • The following procedures about removing and replacing FRUs are the same for the Lenovo M50-70/M50-80. • The illustrations used in this section are of the Lenovo M50-70, unless otherwise stated.

  • Page 37: 1010 Optical Drive

    Lenovo M50-70/M50-80 1010 Optical drive Figure 1. Removal steps of optical drive Remove the screw 1. Step Screw (quantity) Color Torque M2.0 × 6.0 mm, flat-head, nylok-coated (1) Black 1.8±0.2 kgf*cm Low to up on the edge Pull the optical drive out in the direction shown by arrow 2.
  • Page 38 M50-70/M50-80 Hardware Maintenance Manual Figure 1. Removal steps of optical drive (continued) Remove the screw 3, then remove the optical drive bracket in the direction shown by arrow 4. Step Screw (quantity) Color Torque M2.0 × 3.0 mm, flat-head, nylok-coated (1) Black 1.8±0.2 kgf*cm odd brkt to odd module Carefully remove the optical drive bezel in the direction shown by arrow 5.

  • Page 39: 1020 Keyboard

    Lenovo M50-70/M50-80 1020 Keyboard Figure 2. Removal steps of keyboard Remove the screws 1. Step Screw (quantity) Color Torque M2.0× 6.0mm, flat-head, nylok-coated (3) Black 1.8±0.2 kgf*cm Low to up on the edge Loosen the keyboard with fingers in the direction shown by arrows 2.
  • Page 40 M50-70/M50-80 Hardware Maintenance Manual Figure 2. Removal steps of keyboard (continued) Lift the keyboard slightly 3. Detach the connector in the directions shown by arrows 4 and 5. Then remove the keyboard. When installing: Make sure that the FPC connector is attached firmly.

  • Page 41: 1030 Base Cover

    Lenovo M50-70/M50-80 1030 Base cover For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 Figure 3. Removal steps of base cover Remove the screws 1. Step Screw (quantity) Color Torque M2.0 × 6.0 mm, flat-head, nylok-coated (4) Black 1.8±0.2 kgf*cm K/B Up to Low...

  • Page 42: Remove The Screws

    M50-70/M50-80 Hardware Maintenance Manual Figure 3. Removal steps of base cover (continued) Remove the screws 2 and 3. Step Screw (quantity) Color Torque M2.0 × 6.0 mm, flat-head, nylok-coated (8) Black 1.8±0.2 kgf*cm Low to up on the edge M2.0 × 2.0 mm, flat-head, nylok-coated (3) Sliver 1.8±0.2 kgf*cm ODD bridge to up Remove the base cover in the direction shown by arrow 4.
  • Page 43 Lenovo M50-70/M50-80 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 label: The following labels need to be peeled off from the old base cover and put on the new base cover.

  • Page 44: 1040 Battery Pack

    M50-70/M50-80 Hardware Maintenance Manual 1040 Battery pack For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 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 Unplug the battery connector in the direction shown by arrow 1, then remove the screws 2.
  • Page 45 Lenovo M50-70/M50-80 Figure 4. Removal steps of battery pack (continued) Remove the battery pack 3.

  • Page 46: 1050 Hard Disk Drive

    M50-70/M50-80 Hardware Maintenance Manual 1050 Hard disk drive For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 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 47 Lenovo M50-70/M50-80 Figure 5. Removal steps of hard disk drive (continued) Remove the screws 3 and detach the metal frame from the hard disk drive. Step Screw (quantity) Color Torque M3.0 × 4.0 mm, flat-head, nylok-coated (4) Black 3.0±0.2 kgf*cm hdd emi box to hdd module...

  • Page 48: 1060 Pci Express Mini Card For Wireless Lan

    M50-70/M50-80 Hardware Maintenance Manual 1060 PCI Express Mini Card for wireless LAN For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 Figure 6. Removal steps of PCI Express Mini Card for wireless LAN Disconnect the two wireless LAN cables (black, white) 1, and then remove the screw 2. In step 1, unplug the jacks by using the removal tool antenna RF connector (P/N: 08K7159), or pick up the connectors with your fingers and gently unplug them in the direction shown by the arrows. Notes: The wireless LAN card has 2 cables in step 1. The wireless LAN card in some models might have 3 cables in step 1.
  • Page 49 Lenovo M50-70/M50-80 Figure 6. Removal steps of PCI Express Mini Card for wireless LAN (continued) Remove the card in the direction shown by arrow 3. When installing: • In models with a wireless LAN card that has two antenna connectors, plug the black cable (1st) (MAIN) into the jack labeled MAIN, and the white cable (2nd) (AUX) into the jack labeled AUX on the card. • In models with a wireless LAN card that has three antenna connectors, plug the black cable (1st) (MAIN) into the jack labeled 1, the grey cable (3rd) into the jack labeled 3, and the white cable (2nd) (AUX) into the jack labeled 2 on the card.

  • Page 50: 1070 Dimm

    M50-70/M50-80 Hardware Maintenance Manual 1070 DIMM For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 Figure 7. Removal steps of DIMM Release the two latches on both edges of the socket at the same time in the directions shown by arrows 1, and then unplug the DIMM in the direction shown by arrow 2.
  • Page 51 Lenovo M50-70/M50-80 Figure 7. Removal steps of DIMM (continued) Note: I f only one DIMM 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 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 is difficult to move.

  • Page 52: 1080 Odd Board

    M50-70/M50-80 Hardware Maintenance Manual 1080 ODD board For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 Figure 8. Removal steps of ODD board Detach the ODD board connector in the directions shown by arrows 1 and 2. Remove the screws 3. Step Screw (quantity) Color Torque M2.0 × 2.0 mm, flat-head, nylok-coated (2) Black 1.8±0.2 kgf*cm ODD BD to Up Then remove the ODD board in the direction shown by arrow 4. When installing: Make sure that the connector is attached firmly.

  • Page 53: 1090 Docking Board

    Lenovo M50-70/M50-80 1090 Docking board For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 Figure 9. Removal steps of docking board Disconnect the two connectors in the directions shown by arrows 1 and 2. Then remove the screws 3. Step Screw (quantity) Color Torque M2.5 × 5.0 mm, flat-head, nylok-coated (2) Black 2.3±0.2 kgf*cm IO BD to Up When installing: Make sure that the connectors are attached firmly.
  • Page 54 M50-70/M50-80 Hardware Maintenance Manual Figure 9. Removal steps of docking board (continued) Remove docking board in the direction shown by arrow 4.

  • Page 55: 1100 Speakers

    Lenovo M50-70/M50-80 1100 Speakers For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 Figure 10. Removal steps of speakers Unplug the speaker connector in the direction shown by arrow 1. Remove the speakers in the direction shown by arrows 2.

  • Page 56: 1110 Thermal Module

    M50-70/M50-80 Hardware Maintenance Manual 1110 Thermal module For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 Figure 11. Removal steps of thermal module Unplug the fan connector in the direction shown by arrow 1. Loosen the screws 2, then remove the thermal module in the direction shown by arrow 3. When installing: Make sure that the fan connector is attached firmly.

  • Page 57: 1120 Usb Board And Finger Print Board

    Lenovo M50-70/M50-80 1120 USB board and finger print board For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 • “1050 Hard disk drive” on page 42 • “1080 ODD board” on page 48 Figure 12. Removal steps of USB board and finger print board Open the display panel then disconnect the connector in the directions...
  • Page 58 M50-70/M50-80 Hardware Maintenance Manual Figure 12. Removal steps of USB board and finger print board (continued) Remove the screw 3, then remove the USB board in the direction shown by arrow 4. Step Screw (quantity) Color Torque M2.0 × 3.0 mm, flat-head, nylok-coated (1) Black 1.8±0.2 kgf*cm IO BD to Up Disconnect the fingerprint board connector in the directions shown by arrows 5 and 6. Remove the screw 7. Step Screw (quantity) Color Torque M2.0 × 3.0 mm, flat-head, nylok-coated (1) Black 1.8±0.2 kgf*cm FP Brkt to Up...
  • Page 59 Lenovo M50-70/M50-80 Figure 12. Removal steps of USB board and finger print board (continued) Remove the fingerprint bracket and fingerprint board in the direction shown by arrows 8 and 9.

  • Page 60: 1130 System Board And Touchpad Module

    M50-70/M50-80 Hardware Maintenance Manual 1130 System board and touchpad module 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 61 Lenovo M50-70/M50-80 Figure 13. Removal steps of system board and touchpad module (continued) Disconnect the connectors in the directions shown by arrows 1 and 2. Remove the screws 3. Step Screw (quantity) Color Torque M2.0 × 3.0 mm, flat-head, nylok-coated (2) Black 1.8±0.2 kgf*cm M/B to Up When installing: Make sure that the connectors are attached firmly. Remove the system board in the direction shown by arrow 4.
  • Page 62 M50-70/M50-80 Hardware Maintenance Manual Figure 13. Removal steps of system board and touchpad module (continued) Open the tab in the direction shown by arrow 5. Then remove the screws 6. Step Screw (quantity) Color Torque M2.0 × 3.0 mm, flat-head, nylok-coated (2) Black 1.8±0.2 kgf*cm TP module to UP Remove the touchpad module 7.

  • Page 63: 1140 Upper Case And Power Board

    Lenovo M50-70/M50-80 1140 Upper case and power board For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 • “1050 Hard disk drive” on page 42 • “1060 PCI Express Mini Card for wireless LAN” on page 44 • “1080 ODD board” on page 48 • “1090 Docking board” on page 49 • “1100 Speakers” on page 51 • “1110 Thermal module” on page 52 • “1120 USB board and finger print board” on page 53 • “1130 System board and touchpad module” on page 56 Figure 14. Removal steps of upper case and power board Remove the screws 1.
  • Page 64 M50-70/M50-80 Hardware Maintenance Manual Figure 14. Removal steps of upper case and power board (continued) Open the hinge in the direction shown by arrows 2. Remove the screw 3. Step Screw (quantity) Color Torque M2.0 × 3.0 mm, flat-head, nylok-coated (1) Black 1.8±0.2 kgf*cm Power BD to Up Remove the power board in the direction shown by arrow 4.
  • Page 65 Lenovo M50-70/M50-80 Figure 14. Removal steps of upper case and power board (continued) Remove the upper case in the direction shown by arrow 5.

  • Page 66: 1150 Lcd Unit

    M50-70/M50-80 Hardware Maintenance Manual 1150 LCD unit For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 • “1050 Hard disk drive” on page 42 • “1060 PCI Express Mini Card for wireless LAN” on page 44 • “1080 ODD board” on page 48 • “1090 Docking board” on page 49 • “1100 Speakers” on page 51 • “1110 Thermal module” on page 52 • “1120 USB board and finger print board” on page 53 • “1130 System board and touchpad module” on page 56 • “1140 Upper case and power board” on page 59 Figure 15. Removal steps of LCD unit Remove LCD bezel screw pads 1 and the screws 2.
  • Page 67 Lenovo M50-70/M50-80 Figure 15. Removal steps of LCD unit (continued) Remove the LCD front bezel in the direction shown by arrows 3. Remove the screws 4. Step Screw (quantity) Color Torque M2.0 × 3.0 mm, flat-head, nylok-coated (4) Black 1.8±0.2 kgf*cm lcd to lcd cover...
  • Page 68 M50-70/M50-80 Hardware Maintenance Manual Figure 15. Removal steps of LCD unit (continued) Lift the LCD panel slightly 5. Peel off the adhesive tape and detach the connector in the direction shown by arrow 6. Then remove the LCD panel. Remove the screws 7. Step Screw (quantity) Color Torque M2.5 × 3.0 mm, flat-head, nylok-coated (6) Black 2.3±0.2 kgf*cm Hinge to LCD Panel...
  • Page 69 Lenovo M50-70/M50-80 Figure 15. Removal steps of LCD unit (continued) Then release the hinges in the direction shown by arrows 8.

  • Page 70: 1160 Antenna Assembly

    M50-70/M50-80 Hardware Maintenance Manual 1160 Antenna assembly For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 • “1050 Hard disk drive” on page 42 • “1060 PCI Express Mini Card for wireless LAN” on page 44 • “1080 ODD board” on page 48 • “1090 Docking board” on page 49 • “1100 Speakers” on page 51 • “1110 Thermal module” on page 52 • “1120 USB board and finger print board” on page 53 • “1130 System board and touchpad module” on page 56 • “1140 Upper case and power board” on page 59 • “1150 LCD unit” on page 62 Figure 16. Removal steps of antenna assembly...

  • Page 71: 1170 Lcd Cable And Integrated Camera

    Lenovo M50-70/M50-80 1170 LCD cable and integrated camera For access, remove these FRUs in order: • “1010 Optical drive” on page 33 • “1020 Keyboard” on page 35 • “1030 Base cover” on page 37 • “1040 Battery pack” on page 40 • “1050 Hard disk drive” on page 42 • “1060 PCI Express Mini Card for wireless LAN” on page 44 • “1080 ODD board” on page 48 • “1090 Docking board” on page 49 • “1100 Speakers” on page 51 • “1110 Thermal module” on page 52 • “1120 USB board and finger print board” on page 53 • “1130 System board and touchpad module” on page 56 • “1140 Upper case and power board” on page 59 • “1150 LCD unit” on page 62 • “1160 Antenna assembly” on page 66 Figure 17. Removal steps of LCD cable and integrated camera...
  • Page 72 M50-70/M50-80 Hardware Maintenance Manual Figure 17. Removal steps of LCD cable and integrated camera (continued) Release the LCD cable from the cable guide, and then remove the cable in the direction shown by arrows 2. Remove the integrated camera in the direction shown by arrow 3. Note: T he integrated camera is stuck to 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. When replacing the integrated camera, route the connector cable as...

  • Page 73: Locations

    Lenovo M50-70/M50-80 Locations Front view and right-side view 1 Integrated camera 2 Built-in microphone 3 Wireless LAN antennas 4 Computer display 5 Touchpad 6 Fingerprint reader 7 Memory card slot 8 Battery status indicator Note: For the description of each indicator, see “Status indicators” on page 29. 9 USB port J Optical drive K Kensington lock slot L Power button...

  • Page 74: Bottom And Left-Side View

    M50-70/M50-80 Hardware Maintenance Manual Bottom and Left-side view 1 Novo button 2 Combo audio jack 3 USB port 4 RJ-45 port 5 HDMI port 6 Fan louvers 7 Lenovo OneLink connector 8 AC power adapter jack 9 Speaker...

  • Page 75: Parts List

    Lenovo M50-70/M50-80 Parts list This section presents the following service parts: • “Overall” on page 72 • “LCD FRUs” on page 75 • “Miscellaneous parts” on page 79 • “AC adapters” on page 80 • “Screws” on page 80 • “Power cords” on page 81 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 76: Overall

    M50-70/M50-80 Hardware Maintenance Manual Overall...
  • Page 77 Lenovo M50-70/M50-80 Table 4. Parts list—Overall No. FRU FRU no. CRU ID. a-k See “Miscellaneous parts” on page 79. LCD unit (see “LCD FRUs” on page 75.) Keyboard (see “Keyboard” on page 77.) Upper Cover Black W M50-70 5CB0G86332 TP Button Board W M50-70 5C50G86337 ODD Switch Board W M50-70 5C50G86357 Docking Board W M50-70 5C50G86335 Power Board W M50-70 5C50G86326 FingerPrint Board W M50-70 5F30G86329 IO Board W M50-70 5C50G86364 Speaker W M50-70 5SB0G86327 MB W M50-70 NOK I3-4030U UMA 5B20G86339 MB W M50-70 W8P I3-4030U UMA 5B20G86344 MB W M50-70 W8S I3-4030U UMA 5B20G86345 MB W M50-70 NOK I3-4030U 2G 5B20G86347...
  • Page 78 M50-70/M50-80 Hardware Maintenance Manual Table 4. Parts list—Overall (continued) No. FRU FRU no. CRU ID. WirelessLan_Intel, Intel WP1 3160 1x1ac+BT M.2 SW10A11511 ROW Combo.(BT ROM update) WirelessLan_Non_Intel, Cbt BCM43162 20200573 1x1AC+BT4.0 PCIE M.2 WLAN WirelessLan_Non_Intel, Ltn NFA345 1x1AC+BT4.0 20200579 PCIE M.2 WLAN WirelessLan_Non_Intel, Cbt BCM43142 20200557 1x1BN+BT4.0 PCIE M.2 WLAN WirelessLan_Non_Intel, Ltn NFA335 1x1BN+BT4.0 20200558 PCIE M.2 WLAN WirelessLan_Non_Intel, Cbt RTL8723BE 20200570 1x1BN+BT4.0 PCIE M.2 WLAN WirelessLan_Intel, Intel 7260 2x2AC+BT PCIE M.2 20200552 WLAN V2 Battery, Mybo SY L13S4E61 7.2V41.6Wh 4cell bty 121500245 Battery, Mybo SP/L L13M4E61 7.44V41.6Wh 4cell 121500246 Battery, Mybo LG L13L4E61 7.44V41.6Wh 4cell...

  • Page 79: Lcd Frus

    Lenovo M50-70/M50-80 LCD FRUs In Lenovo M50-70/M50-80, there are following types of LCDs. • “15.6-in. Touch HD LED”...
  • Page 80 M50-70/M50-80 Hardware Maintenance Manual Table 5. Parts list—15.6-in. Touch HD LED No. FRU FRU no. CRU ID. LCDBezelScrewPad Pack W M50-70 5R60G90690 LCD Bezel Black W M50-70 5B30G86341 Panel, LP156WHB-TPD1 5D10F76011 Panel, AUO B156XTN04.1 4A HD AG F LED1 NB 18201588 LCD Panel, CMI N156BGE-EA1 C2 HD AG S LED1 NB 18201589 Panel, SDC LTN156AT37-401 HD AG F NB 5D10G18222 Panel, BOE N156WHM-N22 HD AG F NB 5D10G74898 Panel, AUO B156HTN03.6 FHD AG S LED1 NB 18201583 Panel, CMI N156HGE-EAB FHD AG S LED1 NB 18201584 Panel, BOE HB156FH1-401 FHD AG S LED1 NB 18201585 Hinge W M50-70 R/L 5H50G86330...

  • Page 81: Keyboard

    Lenovo M50-70/M50-80 Keyboard Table 6. Parts list—Keyboard Language CRU ID. English 25214785 U.K. English 25214786 Italian 25214787 Spanish 25214788 Turkish 25214789 Thai 25214790 Portuguese 25214791 Latin 25214792 Canadian English&French 25214793 Korean 25214794 Traditional Chinese 25214795 Russian 25214796 French 25214797 German 25214798 Arabic 25214799...
  • Page 82 M50-70/M50-80 Hardware Maintenance Manual Table 6. Parts list—Keyboard (continued) Language CRU ID. Arabic 25214769 Brazilian 25214770 Japanese 25214771 Dutch 25214772 Greek 25214773 Hebrew 25214774 Hungarian 25214775 Four Nordic countries 25214776 Sunrex Belgian 25214777 Icelandic 25214778 Slovenian 25214779 Swiss 25214780 International English 25214781 Czechoslovakian...

  • Page 83: Miscellaneous Parts

    Lenovo M50-70/M50-80 Miscellaneous parts Table 7. Parts list—Miscellaneous parts FRU no. CRU ID. System miscellaneous parts: • ( a ) FP Bracket W M50-70 5B40G86363 • ( b ) HDD Bracket W M50-70 W/SPG/Foil 5B40G86359 • ( c ) ODD Bracket W M50-70 5B40G86334 • ( d ) ODD Bezel Black W M50-70 5B30G86343 Cable miscellaneous parts: • ( e ) TP Button Board Cable W M50-70 5C10G86350 • ( f ) ODD SATA Cable W M50-70...

  • Page 84: Ac Adapters

    M50-70/M50-80 Hardware Maintenance Manual AC adapters Table 8. Parts list—3-pin AC adapters CRU ID. Adapter, Chicony ADLX45NCC3A 20V2.25A 36200610 Adapter, ADLX45NDC3A 20V2.25A adapter 36200602 Adapter, ADLX45NLC3A 20V2.25A adapter 36200606 Adapter, ADP-65FD BB 36200249 Adapter, ADLX65NLC3A 20V3.25A adapter 36200607 Adapter, ADLX65NCC3A 20V3.25A adapter 36200611 Screws Table 9. Parts list—screws CRU ID. Screw Pack W M50-70 5S10G86338...

  • Page 85: Power Cords

    Lenovo M50-70/M50-80 Power cords A Lenovo power cord for a specific country or region is usually available only in that country or region: Table 10. Parts list—3-pin power cords Region CRU ID. UK 3pin 145000593 • LINETEK LP-61L+ H03VV-F+ LS15 1m UK 3pin 145000561 • Longwell LP-61L+H03VV-F+LS-18 1m UK 3pin 145000605 • VOLEX MP5004+H03VV-F+VAC5S 1m UK 3pin 145500000 • lux 0031+H03VV-F 0.75/3C+0011 1m Europe 3pin 145000585 • LINETEK LP-34+H03VV-F + LS15 1m Europe 3pin 145000553 • Longwell LP-34A+H03VV-F+LS-18 1m Europe 3pin 145000525 • VOLEX M2511+HO3VV-F+VAC5S 1m Europe 3pin 145500001 • lux 0033+H03VV-F 0.75/3C+0011 1m US 3pin 145000594 • LINETEK LP-30B + SPT-2 + LS15 1m...
  • Page 86 M50-70/M50-80 Hardware Maintenance Manual Table 10. Parts list—3-pin power cords (continued) Region CRU ID. Japan 3pin 145000530 • VOLEX VAC5S+VCTF+M755 1m Japan 3pin 145500005 • lux 0018(E)+VCTF 0.75/3C+0021 1m Australia 3pin 145000589 • LINETEK LS15+H03VV-F+LP-23A 1m Australia 3pin 145000557 • Longwell LP-23A+LFC-3R+LS-18 1m Australia 3pin 145000532 • VOLEX AU10S3+H03VV-F+VAC5S 1m Australia 3pin 145500006 • lux 0038+H03VV-F 0.75/3C+0011 1m Taiwan 3pin 145000588 • LINETEK LS15+VCTF+LP-53 1m Taiwan 3pin 145000556 • Longwell LP-71+VCTF+LS-33 1m Taiwan 3pin 145000531 • VOLEX TW15CS3+VCTF+VAC5S 1m...
  • Page 87 Lenovo M50-70/M50-80 Table 10. Parts list—3-pin power cords (continued) Region CRU ID. Brazil 3pin 145000564 • Longwell LP-46+H03VV-F+LS-18 1m Brazil 3pin 145000527 • VOLEX CH10S3+H03VV-F+VAC5S 1m Brazil 3pin 145500011 • lux 0034+H03VV-F 0.75/3C+0011 1m Israel 3pin 145000595 • LINETEK LS15+H03VV-F+LP-41 1m Israel 3pin 145000563 • Longwell LP-41+H03VV-F+LS-18 1m Israel 3pin 145000526 • VOLEX SI16S3+H03VV-F+VAC5S 1m Israel 3pin 145500012 • lux 0041+H03VV-F 0.75/3C+0011 1m Switzerland 3pin 145000597 • LINETEK LS15+H03VV-F+LP-37 1m Switzerland 3pin 145000565 • Longwell LP-37+H03VV-F+LS-18 1m Switzerland 3pin 145000524 • VOLEX MP232+H03VV-F+VAC5S 1m...

  • Page 88: Notices

    M50-70/M50-80 Hardware Maintenance Manual 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 89: Trademarks

    Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment. 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...

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