Lenovo Ideapad 720-15IKB Hardware Maintenance Manual
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Lenovo Ideapad 720-15IKB Hardware Maintenance Manual

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  • Page 1 Lenovo ideapad 720-15IKB Hardware Maintenance Manual...
  • Page 2 Note: • Before using this information and the product it supports, be sure to read the general information under “Notices” on page 83. First Edition (June 2017) © Copyright Lenovo 2017. 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. © 2017 Lenovo...

  • Page 3: Table Of Contents

    Passwords ............ 24 Power-on password ..........24 Hard-disk password ..........24 Administrator password ........24 Power management ........25 Putting the computer to sleep or shutting it down ..............25 Putting your computer to sleep ......25 Shutting down the computer ......26 Lenovo ideapad 720-15IKB ......27 Specifications ..........27 Status indicators ........... 29 Hotkeys............30 FRU replacement notices ......31 Screw notices ..........31 Removing and replacing an FRU ....32 1010 Base cover ..........33 1020 Battery pack ..........36 1030 PCI Express Mini Card for wireless LAN .

  • 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 ideapad 720-15IKB 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

    720-15IKB 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 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 8 720-15IKB 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

    720-15IKB 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. Verify this by shaking the computer and listening for rattling sounds.
  • Page 12 720-15IKB 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 14 720-15IKB 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 16 720-15IKB 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

    720-15IKB 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

    720-15IKB 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 power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation. • 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) 20V/2.25A 15V/3A 9V/2A 5V/2A 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 ideapad 720-15IKB” on page 27. Note: Noise from the AC adapter does not always indicate a defect.

  • Page 26: Checking Operational Charging

    720-15IKB 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 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,...

  • Page 28: Passwords

    720-15IKB 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 two power management modes: sleep (standby), and hibernation. 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. Putting your computer to sleep If you will be away from your computer for only a short time, put the computer to sleep. When the computer is in sleep mode, you can quickly wake it to resume use, bypassing the startup process. To put the computer to sleep, do one of the following: • Close the display lid. • Press and hold the Power key for about 1 to 5 seconds.

  • Page 30: Shutting Down The Computer

    720-15IKB 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, do one of the following: • Select the Start button, then select Power → Shut down. • Right-click or press the Start button in the lower-left corner and select Shut down or sign out → Shut down.

  • Page 31: Lenovo Ideapad 720-15Ikb

    This chapter presents the following product-specific service references and product-specific parts information: • “Specifications” on page 27 • “Status indicators” on page 29 • “Hotkeys” on page 30 • “FRU replacement notices” on page 31 • “Removing and replacing an FRU” on page 32 • “Locations” on page 64 • “Parts list” on page 66 Specifications The following table lists the specifications of the Lenovo ideapad 720- 15IKB: Table 1. Specifications Form Factor Dimensions Appr. 362.5 mm × 255 mm × 21.7 mm Weight Appr. 2.1 kg with battery LCD size 15.6-inch...
  • Page 32 720-15IKB Hardware Maintenance Manual Table 1. Specifications (continued) Display Display resolution 16:9 (1,366 × 768/1,920 × 1,080 pixels) (LCD) LCD backlight I/O Ports USB 3.0 × 2, Type-C × 1 (USB 3.0) Audio Combo audio jack × 1 Communication RJ-45 × 1 Video/Audio HDMI slot × 1 Memory card slot 4 in 1 slot × 1 (SD/SDHC/SDXC/MMC) Battery pack Type Polymer Cells/Capacity 3 Cell/45 W Note: The capacity given here is the typical or average capacity as measured in a specific test environment. Capacities measured in other environments may differ but are no lower than the rated capacity (see product label). AC power adapter Input 100-240 V, 50-60 Hz...

  • Page 33: Status Indicators

    Lenovo ideapad 720-15IKB Status indicators The system status indicators below show the computer status: Table 2. Status indicators Battery/Charging status indicator AC power Indicator status Meaning adapter status The computer is in sleep mode or turned off; The battery has more than 20% charge. Disconnected The battery has between 5% and Solid amber 20% charge. The battery has between 1% and 5% Fast blinking amber charge. The battery is being charged. When Slow blinking amber battery charge reaches 20%, the blinking color changes to white. The battery has between 20% and 80% charge and is still charging. Connected Slow blinking white When the battery reaches 80% charge the light will stop blinking.

  • Page 34: Hotkeys

    720-15IKB Hardware Maintenance Manual Hotkeys You can access certain system settings quickly by pressing the appropriate hotkeys. Table 3. Hotkeys Enables/disables airplane Mutes/unmutes the sound. mode. Decreases the volume level. Enables/disables camera. Locks/unlocks the LCD Increases the volume level. screen. Enables the external Enables/disables projector or dangles the microphone. external display. Decreases display Refreshes page. brightness. Enables/disables the touch Increases display pad. brightness.

  • Page 35: Fru Replacement Notices

    Lenovo ideapad 720-15IKB 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.

  • Page 36: Removing And Replacing An Fru

    720-15IKB Hardware Maintenance Manual 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 31. 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.

  • Page 37: 1010 Base Cover

    Lenovo ideapad 720-15IKB 1010 Base cover Figure 1. Removal steps of base cover Remove the screws 1. Step Screw (quantity) Color Torque M2 × 5 mm, Phillips-head (11) Silver 1.7-2.2 kgf.cm...
  • Page 38 720-15IKB Hardware Maintenance Manual Figure 1. Removal steps of base cover (continued) Remove the base cover in the directions shown by arrows 2 and 3.
  • Page 39 Lenovo ideapad 720-15IKB 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 put on the new base cover. Rating label 1 Rating label 2 GML label Office label for China CNC label 68 × 6 mm for Argentina and Argentina label 65 × 20 mm BT label 32 × 10 mm and WL label 32 × 10 mm for US/Canada/Taiwan KCC label 43 × 24 mm for Korea Postel label 15 × 10 mm and D Side label 26 × 10 mm for Indonesia BIS label 40 × 10 mm for India WL/BT label 32 × 10 mm for Israel WL/BT label 35 × 15 mm for Brazil WL label 20 × 10 mm for South Africa 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 40: 1020 Battery Pack

    720-15IKB Hardware Maintenance Manual 1020 Battery pack DANGER Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode. For access, remove these FRUs in order: • “1010 Base cover” on page 33 Figure 2. Removal steps of battery pack Detach the battery pack connector in the direction shown by arrow 1. Remove the screws 2.
  • Page 41 Lenovo ideapad 720-15IKB Figure 2. Removal steps of battery pack (continued) Remove the battery pack in the direction shown by arrow 3.

  • Page 42: 1030 Pci Express Mini Card For Wireless Lan

    • “1020 Battery pack” on page 36 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 4 “Parts list—Overall” on page 68 for Lenovo part numbers for the approved modules.
  • Page 43 Lenovo ideapad 720-15IKB Figure 3. Removal steps of PCI Express Mini Card for wireless LAN (continued) Remove the card in the direction shown by arrow 3. When installing: 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.

  • Page 44: 1040 Dimm

    720-15IKB Hardware Maintenance Manual 1040 DIMM For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 36 • “1030 PCI Express Mini Card for wireless LAN” on page 38 Figure 4. 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 45: 1050 Hard Disk Drive And Ssd Card

    Lenovo ideapad 720-15IKB 1050 Hard disk drive and SSD card For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 36 • “1030 PCI Express Mini Card for wireless LAN” on page 38 • “1040 DIMM” 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.
  • Page 46 720-15IKB Hardware Maintenance Manual Figure 5. Removal steps of hard disk drive and SSD card (continued) Remove the SSD card in the direction shown by arrow B. Detach the HDD connector in the directions shown by arrow C and D. Remove the screws E. When installing: Make sure that the HDD connector is attached firmly. Step Screw (quantity) Color Torque M2 × 3 mm, Phillips-head (3) Bronze 1.7-2.2 kgf.cm...
  • Page 47 Lenovo ideapad 720-15IKB Figure 5. Removal steps of hard disk drive and SSD card (continued) Remove the hard disk drive from the slot in the direction shown by arrow F. Remove the screws G. Detach the bracket from the hard disk drive. Step Screw (quantity) Color Torque M3 × 4 mm, Phillips-head (4) Silver 2.2-2.7 kgf.cm...

  • Page 48: 1060 Speakers

    720-15IKB Hardware Maintenance Manual 1060 Speakers For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 36 • “1030 PCI Express Mini Card for wireless LAN” on page 38 • “1040 DIMM” on page 40 • “1050 Hard disk drive and SSD card” on page 41 Figure 6. Removal steps of speakers Unplug the speaker connector 1. Then remove the speakers 2. When installing: Make sure that the connector is attached firmly.

  • Page 49: 1070 Fan And Heat Sink Assembly

    Lenovo ideapad 720-15IKB 1070 Fan and heat sink assembly For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 36 • “1030 PCI Express Mini Card for wireless LAN” on page 38 • “1040 DIMM” on page 40 • “1050 Hard disk drive and SSD card” on page 41 • “1060 Speakers” on page 44 Figure 7. Removal steps of fan and heat sink assembly Release the cables from the cable guides in the direction shown by arrows 1. When installing: Route the antenna cables along the cable guides. As you route the cables, make sure that they are not subjected to any tension. Tension...
  • Page 50 720-15IKB Hardware Maintenance Manual Figure 7. Removal steps of fan and heat sink assembly (continued) Unplug the fan connector in the direction shown by arrow 2. Remove the screw 3 and loosen the screws D. Step Screw (quantity) Color Torque M2 × 3 mm, Phillips head (2) fan---mb---log up Bronze 1.7-2.2 kgf.cm & fan---log up When installing: Make sure that the connector is attached firmly.
  • Page 51 Lenovo ideapad 720-15IKB Figure 7. Removal steps of fan and heat sink assembly (continued) When installing: Before you attach the fan and 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 52: 1080 Upper Case

    720-15IKB Hardware Maintenance Manual 1080 Upper case For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 36 • “1030 PCI Express Mini Card for wireless LAN” on page 38 • “1040 DIMM” on page 40 • “1050 Hard disk drive and SSD card” on page 41 • “1060 Speakers” on page 44 • “1070 Fan and heat sink assembly” on page 45 Figure 8. Removal steps of upper case Remove the screws 1. Step Screw (quantity) Color Torque M2.5 × 4 mm, Phillips-head (4) left side hinge--- Silver 2.2-2.7 kgf.cm log up & right side hinge---log up...
  • Page 53 Lenovo ideapad 720-15IKB Figure 8. Removal steps of upper case (continued) Detach the LCD unit connector in the directions shown by arrows 2 and C. Open the hinge in the direction shown by arrows D.
  • Page 54 720-15IKB Hardware Maintenance Manual Figure 8. Removal steps of upper case (continued) Remove the upper case from the LCD module in the directions shown by arrow E.

  • Page 55: 1090 I/O Board, Backup Battery And Fingerprint Board

    Lenovo ideapad 720-15IKB 1090 I/O board, backup battery and fingerprint board For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 36 • “1030 PCI Express Mini Card for wireless LAN” on page 38 • “1040 DIMM” on page 40 • “1050 Hard disk drive and SSD card” on page 41 • “1060 Speakers” on page 44 • “1070 Fan and heat sink assembly” on page 45 • “1080 Upper case” on page 48 Figure 9. Removal steps of I/O board, backup battery and fingerprint board Unplug the backup battery connector in the direction shown by arrow A.
  • Page 56 720-15IKB Hardware Maintenance Manual Figure 9. Removal steps of I/O board, backup battery and fingerprint board (continued) Remove the backup battery in the direction shown by arrow B. Remove the screw C. Detach the connectors in the directions shown by arrow D and E. Step Screw (quantity) Color Torque M2 × 3 mm, Phillips-head (2) Bronze 1.7-2.2 kgf.cm...
  • Page 57 Lenovo ideapad 720-15IKB Figure 9. Removal steps of I/O board, backup battery and fingerprint board (continued) Remove the I/O board in the direction shown by arrow F. Remove the screw G. Detach the fingerprint board connector in the directions shown by arrow H and I. Step Screw (quantity) Color Torque M2 × 2.5 mm, Phillips-head (1) 1.7-2.2 kgf.cm Bronze...
  • Page 58 720-15IKB Hardware Maintenance Manual Figure 9. Removal steps of I/O board, backup battery and fingerprint board (continued) Remove the fingerprint board and its bracket in the direction shown by arrow J.

  • Page 59: 1100 System Board And Touch Pad

    Lenovo ideapad 720-15IKB 1100 System board and touch pad 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 60 720-15IKB Hardware Maintenance Manual Figure 10. Removal steps of system board and touch pad (continued) Remove the system board in the direction shown by arrow E. Remove the screws F. Step Screw (quantity) Color Torque M2 × 2.5 mm, Phillips-head (4) Silver 1.7-2.2 kgf.cm...
  • Page 61 Lenovo ideapad 720-15IKB Figure 10. Removal steps of system board and touch pad (continued) Remove the touch pad in the direction shown by arrow G.

  • Page 62: 1110 Lcd Unit

    720-15IKB Hardware Maintenance Manual 1110 LCD unit For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 36 • “1030 PCI Express Mini Card for wireless LAN” on page 38 • “1040 DIMM” on page 40 • “1050 Hard disk drive and SSD card” on page 41 • “1060 Speakers” on page 44 • “1070 Fan and heat sink assembly” on page 45 • “1080 Upper case” on page 48 • “1090 I/O board, backup battery and fingerprint board” on page 51 • “1100 System board and touch pad” on page 55 Figure 11. Removal steps of LCD unit Remove the LCD front bezel in the direction shown by arrows 1.
  • Page 63 Lenovo ideapad 720-15IKB Figure 11. Removal steps of LCD unit (continued) Remove the screws 2. Pull the hinge cap to the right side to release the hooks 3. Step Screw (quantity) Color Torque M2 × 2.5 mm, Phillips-head (3) Silver 1.7-2.2 kgf.cm Remove the screws D. Lift the LCD module slightly. Disconnect the connector in the direction shown by arrow E. Then remove the LCD module F. Step Screw (quantity) Color Torque M2 × 2 mm, Phillips-head (4) lcd panel---lcd Silver 1.7-2.2 kgf.cm cover...
  • Page 64 720-15IKB Hardware Maintenance Manual Figure 11. Removal steps of LCD unit (continued) Remove the screws G. Step Screw (quantity) Color Torque M2 × 2 mm, Phillips-head (6) lcd hinge---lcd Black 1.7-2.2 kgf.cm cover Remove the LCD hinges in the direction shown by arrows H.
  • Page 65 Lenovo ideapad 720-15IKB Figure 11. Removal steps of LCD unit (continued) Detach the camera connector in the direction shown by arrow I. Remove the LCD cable in the direction shown by arrows J. When installing: Make sure that the connector is attached firmly and that you do not pinch the antenna cables when you attach the LCD assembly. Route the LCD cable along the cable guides.
  • Page 66 720-15IKB Hardware Maintenance Manual Figure 11. Removal steps of LCD unit (continued) Peel off the adhesive tape securing the antenna boards, release the cables from the cable guide, and then remove the antenna assembly in the direction shown by arrows K.

  • Page 67: 1120 Integrated Camera And Microphone Assembly

    Lenovo ideapad 720-15IKB 1120 Integrated camera and microphone assembly For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 36 • “1030 PCI Express Mini Card for wireless LAN” on page 38 • “1040 DIMM” on page 40 • “1050 Hard disk drive and SSD card” on page 41 • “1060 Speakers” on page 44 • “1070 Fan and heat sink assembly” on page 45 • “1080 Upper case” on page 48 • “1090 I/O board, backup battery and fingerprint board” on page 51 • “1100 System board and touch pad” on page 55 • “1110 LCD unit” on page 58 Figure 12. Removal steps of integrated camera and microphone assembly Note: The integrated camera and antenna assembly is stuck on the top center of the LCD cover.

  • Page 68: Locations

    720-15IKB Hardware Maintenance Manual Locations Front view and right-side view 1 Integrated camera 2 Built-in microphone 3 Computer display 4 Wireless LAN antennas 5 Ventilation slots 6 Touch pad 7 Fingerprint reader (on select models) 8 Power Key 9 Kensington Security slot J USB port K Memory card slot L Novo button...

  • Page 69: Bottom And Left-Side View

    Lenovo ideapad 720-15IKB Bottom and Left-side view 1 Speakers 2 Ventilation slots 3 AC power adapter jack 4 Battery/Charging status indicator 5 RJ-45 port 6 USB port 7 HDMI port 8 Type-C port 9 Combo audio jack J Power status indicator...

  • Page 70: Parts List

    720-15IKB Hardware Maintenance Manual Parts list This section presents the following service parts: • “Overall” on page 67 • “LCD FRUs” on page 79 • “Miscellaneous parts” on page 81 • “AC adapters” on page 81 • “Screws” on page 81 • “Power cord” 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...

  • Page 71: Overall

    Lenovo ideapad 720-15IKB Overall...
  • Page 72 720-15IKB Hardware Maintenance Manual Table 4. Parts list—Overall FRU no. See “Miscellaneous parts” on page 81. LCD unit (see “LCD FRUs” on page 79). UpperCase W 81AG W/KB NBL US 5CB0P26383 UpperCase W 81AG W/KB NBL UK 5CB0P26373 UpperCase W 81AG W/KB NBL IT 5CB0P26365 UpperCase W 81AG W/KB NBL SP 5CB0P26372 UpperCase W 81AG W/KB NBL TR 5CB0P26262 UpperCase W 81AG W/KB NBL TI 5CB0P26378 UpperCase W 81AG W/KB NBL PO 5CB0P26240 UpperCase W 81AG W/KB NBL LA 5CB0P26300 UpperCase W 81AG W/KB NBL CF-E 5CB0P26293 UpperCase W 81AG W/KB NBL KO 5CB0P26238 UpperCase W 81AG W/KB NBL CH 5CB0P26358 UpperCase W 81AG W/KB NBL RU 5CB0P26375 UpperCase W 81AG W/KB NBL FR 5CB0P26260 UpperCase W 81AG W/KB NBL GR...
  • Page 73 Lenovo ideapad 720-15IKB Table 4. Parts list—Overall (continued) FRU no. UpperCase W 81AG W/KB BL FR 5CB0P26252 UpperCase W 81AG W/KB BL GR 5CB0P26320 UpperCase W 81AG W/KB BL AR-E 5CB0P26281 UpperCase W 81AG W/KB BL BZ 5CB0P26328 UpperCase W 81AG W/KB BL NL 5CB0P26268 UpperCase W 81AG W/KB BL GK 5CB0P26391 UpperCase W 81AG W/KB BL HB 5CB0P26370 UpperCase W 81AG W/KB BL HG 5CB0P26280 UpperCase W 81AG W/KB BL ND 5CB0P26284 UpperCase W 81AG W/KB BL BE 5CB0P26322 UpperCase W 81AG W/KB BL ICE 5CB0P26364 UpperCase W 81AG W/KB BL SA 5CB0P26265 UpperCase W 81AG W/KB BL SW 5CB0P26401 UpperCase W 81AG W/KB BL UI 5CB0P26335 UpperCase W 81AG W/KB BL CZ-SK 5CB0P26254...
  • Page 74 720-15IKB Hardware Maintenance Manual Table 4. Parts list—Overall (continued) FRU no. UpperCase W 81AG W/KB NFP NBL BU 5CB0P26274 UpperCase W 81AG W/KB NFP NBL IN 5CB0P26289 UpperCase W 81AG W/KB NFP NBLAR-FR 5CB0P26344 UpperCase W 81AG W/KB NFP NBL UA 5CB0P26317 UpperCase W 81AG W/KB NFP BL US 5CB0P26272 UpperCase W 81AG W/KB NFP BL USA 5CB0P26327 UpperCase W 81AG W/KB NFP BL UK 5CB0P26256 UpperCase W 81AG W/KB NFP BL IT 5CB0P26385 UpperCase W 81AG W/KB NFP BL SP 5CB0P26343 UpperCase W 81AG W/KB NFP BL TR 5CB0P26283 UpperCase W 81AG W/KB NFP BL TI 5CB0P26368 UpperCase W 81AG W/KB NFP BL PO 5CB0P26245 UpperCase W 81AG W/KB NFP BL LA 5CB0P26402 UpperCase W 81AG W/KB NFP BL CF-E 5CB0P26403...
  • Page 75 Lenovo ideapad 720-15IKB Table 4. Parts list—Overall (continued) FRU no. TradChine101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63185 Russian101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63001 French102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63076 German102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63126 Arabic101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63065 Brazilian102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63103 Japanese105KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63179 Dutch102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63054 Greek101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M62982 Hebrew101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63118 Hungarian102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63102 Nordic102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63029 Belgian102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63215 Iceland102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63012 Slovenian102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M62988...
  • Page 76 720-15IKB Hardware Maintenance Manual Table 4. Parts list—Overall (continued) FRU no. Slovenian102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63224 Swiss102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63040 USInter101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63142 Czh-Slk102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63027 Bulgarian102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M62974 India101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63039 French-Arabic102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63072 Ukrainia96KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63081 US101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63110 UK102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63191 Italian102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M62986 Spanish102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63227 Turkish102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63069 Thailand101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63005...
  • Page 77 Lenovo ideapad 720-15IKB Table 4. Parts list—Overall (continued) FRU no. Portugue102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63128 LatinSpa102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63188 CanadFrEn102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63111 Korean101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63007 TradChine101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63018 Russian101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63062 French102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63083 German102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63112 Arabic101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63219 Brazilian102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63164 Japanese105KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63052 Dutch102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63139 Greek101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63046 Hebrew101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63113 Hungarian102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63145...
  • Page 78 720-15IKB Hardware Maintenance Manual Table 4. Parts list—Overall (continued) FRU no. Hebrew101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63123 Hungarian102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63148 Nordic102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M62987 Belgian102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63079 Iceland102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63043 Slovenian102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63100 Swiss102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63182 USInter101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63034 Czh-Slk102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63094 Bulgarian102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63019 India101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63098 French-Arabic102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63169 Ukrainia96KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63124 US101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63230...
  • Page 79 Lenovo ideapad 720-15IKB Table 4. Parts list—Overall (continued) FRU no. US101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63136 US101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB-forUSA SN20M63078 UK102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63161 Italian102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M62993 Spanish102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63131 Turkish102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63016 Thailand101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63144 Portugue102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63075 LatinSpa102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63143 CanadFrEn102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63055 Korean101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63013 TradChine101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63003 Russian101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63213 French102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63114 German102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M62997...
  • Page 80 720-15IKB Hardware Maintenance Manual Table 4. Parts list—Overall (continued) FRU no. French102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63088 German102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M62984 Arabic101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63011 Brazilian102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63183 Japanese105KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63104 Dutch102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63212 Greek101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63067 Hebrew101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63199 Hungarian102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63209 Nordic102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M62992 Belgian102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63165 Iceland102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63152 Slovenian102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63173 Swiss102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M62994...
  • Page 81 Lenovo ideapad 720-15IKB Table 4. Parts list—Overall (continued) FRU no. MB W 81AG WIN I77500 P1 2G 5B20P26297 MB W 81AG WIN I77500 P1 4G 5B20P26382 M471A5644EB0-CRC SM30G16500 HMA425S6AFR6N-UH SM30G16501 MTA4ATF25664HZ-2G3B1 SM30G16502 RMSA3270MB76H8F-2400 SM30G16503 M471A5244CB0-CRC SM30M49902 HMA851S6AFR6N-UH SM30G16505 MTA4ATF51264HZ-2G3B1 SM30G16506 RMSA3270MB86H9F-2400 SM30G16507 M471A1K43CB1-CRC SM30M49901 HMA81GS6AFR8N-UH SM30G16509 8GB D4 26S MTA8ATF1G64HZ-2G6H1 SM30K25288 8GB D4 26S RMSA3260MH78HAF-2666 SM30K25294 M471A2K43CB1-CRC SM30M49903...
  • Page 82 720-15IKB Hardware Maintenance Manual Table 4. Parts list—Overall (continued) FRU no. AM6671 M.2 2280 512GB PCIe LENSN20512GMSP34MEAT2TA SSD 5SD0N26460 Tesla SP/A L14M3P21 11.1V45Wh3cell GB 5B10K10186 Tesla SP/C L14M3P21 11.1V45Wh3cell GB 5B10K10236 Tesla LG L14L3P21 11.1V45Wh3cell bty 5B10M52817...

  • Page 83: Lcd Frus

    Lenovo ideapad 720-15IKB LCD FRUs In Lenovo ideapad 720-15IKB, there is following type of LCD. • “15.6-in. HD LED”...
  • Page 84 720-15IKB Hardware Maintenance Manual Table 5. Parts list—LCD FRUs FRU no. LCD Bezel W 81AG 5B30P26353 Hinge Cover W 81AG 5CB0P26399 IN N156BGA-EA3 C1 HDT AG S NB 5D10M42885 BO NT156WHM-N45 V8.0 HDT AG S NB 5D10M42874 AU B156HAN02.1 1A FHDI AG S NB 5D10M53949 IN N156HCA-EAA C1 FHDI AG S NB 5D10M43965 LG LP156WF9-SPK2 FHDI AG S NB 5D10M55963 Hinge W 81AG R+L 5H50P26387 Camera W 81AG W/Gasket 5C20P26312 BIS BNCT1NKSK HD NB camera SC20M52081 CCY CNFGH43 HD NB camera SC20M52090 LTN 6SF112N2 HD NB camera SC20M52113 AVC HAA-8F4A04 HD NB camera SC20M52091 EDP Cable W 81AG 5C10P26350...

  • Page 85: Miscellaneous Parts

    Lenovo ideapad 720-15IKB Miscellaneous parts Table 6. Parts list—Miscellaneous parts FRU no. System miscellaneous parts: • (a) HDD Bracket W 81AG 5B40P26258 • (b) FP Bracket W 81AG 5B40P26334 Note: Letters in parentheses are references to the exploded view in “Overall” on page 67. AC adapters Table 7. Parts list—AC adapters Delta ADLX90NDC3A 20V4.5A COO (WW) SA10M42754 Liteon ADLX90NLC3A 20V4.5A AD BIS (WW) 5A10J75109 Chicony ADLX90NCC3A 20V4.5A COO (WW) SA10M42797 Screws Table 8. Parts list—screws Screw Pack W 81AG...
  • Page 86 720-15IKB Hardware Maintenance Manual Table 9. Parts list—power cord (continued) Longwell LSG-31+RVV300/300+LS-18 1m 145000568 Longwell LP-24+H03VV-F+LS-18 1m 145000567 Longwell LP-37+H03VV-F+LS-18 1m 145000565 Longwell LP-46+H03VV-F+LS-18 1m 145000564 Longwell LP-41+H03VV-F+LS-18 1m 145000563 Longwell LP-30B+SPT-2 18AWG+LS-18 1m 145000562 Longwell LP-61L+H03VV-F+LS-18 1m 145000561 Longwell LP-67+BIS+LS-18 1m 145000560 Longwell LP-22+H03VV-F+LS-18 1m 145000559 Longwell LP-486+KTLH03VV-F+LS-5 1m 145000558 Longwell LP-23A+LFC-3R+LS-18 1m 145000557 Longwell LP-71+VCTF+LS-33 1m 145000556 Longwell LP-54+VCTF+LS-18 1m 145000555 Longwell LP-39+H03VV-F+LS-18 1m 145000554 Longwell LP-34A+H03VV-F+LS-18 1m...

  • Page 87: 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 88: Trademarks

    720-15IKB Hardware Maintenance Manual Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurements may have been estimated through extrapolation. Actual results...

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