Lenovo 83JR003BRM
Lenovo 83JR0039RM
Lenovo 83JR002KRM
Hardware Maintenance Manual
Yoga 7i 2-in-1 (14, 10), Yoga 7 2-in-1 (14, 10), Yoga 7i 2-in-1 (16, 10) and Yoga 7 2-in-1 (16, 10)
First Edition (January 2025) © Copyright Lenovo 2025.
Contents
About this manual . . . . . . . . . . . .iii
Chapter 1. Safety information . . . . . . 1
General safety . . . . . . . . . . . . . . . . 1 Electrical safety . . . . . . . . . . . . . . . . 1 Safety inspection guide . . . . . . . . . . . . . 2 Handling devices that are sensitive to electrostatic discharge . . . . . . . . . . . . . . . . . . 3 Grounding requirements . . . . . . . . . . . . 4 Safety notices (multilingual translations) . . . . . . 4
Chapter 2. General checkout . . . . . 19
What to do first . . . . . . . . . . . . . . . 19 CRU list . . . . . . . . . . . . . . . . . . 20
Chapter 3. Identifying FRUs (CRUs) . . . . . . . . . . . . . . . . . 21
Locate FRUs and CRUs . . . . . . . . . . . 21
Chapter 4. Removing a FRU or CRU . . . . . . . . . . . . . . . . . . 25
Service tools . . . . . . . . . . . . . . . . 25 General guidelines . . . . . . . . . . . . . . 25 Handling thermal interface materials . . . . . . 26
Type, quantity, and areas of thermal interface materials application on the heat sink . . . . 26 Areas on the system board where thermal interface materials are applied . . . . . . . 27 Remove the lower case . . . . . . . . . . . . 27 Remove the battery pack . . . . . . . . . . . 28 Remove the battery pack (14-inch models) . . 28 Remove the battery pack (16-inch models) . . 30
Remove the solid-state drive (SSD) . . . . . . . 31 Remove the Wi-Fi card . . . . . . . . . . . . 32 Remove the PMIC board . . . . . . . . . . . 33 Remove the CMOS battery . . . . . . . . . . 34 Remove the fingerprint board cable . . . . . . . 35 Remove the microphone board. . . . . . . . . 35 Remove the touchpad . . . . . . . . . . . . 36
Remove the touchpad (14-inch models) . . . 36 Remove the touchpad (16-inch models) . . . 37 Remove the speakers . . . . . . . . . . . . 39 Remove the speakers (14-inch models) . . . . 39 Remove the speakers (16-inch models) . . . . 40 Remove the heat sink . . . . . . . . . . . . 41 Remove the fan . . . . . . . . . . . . . . . 41 Remove the fan (14-inch models) . . . . . . 41 Remove the fan (16-inch models) . . . . . . 42 Remove the I/O board . . . . . . . . . . . . 43 Remove the I/O board (14-inch models) . . . 43 Remove the I/O board (16-inch models) . . . 45 Remove the system board. . . . . . . . . . . 46 Remove the system board (14-inch models) . . 46 Remove the system board (16-inch models) . . 49 Write key product information to a replacement system board. . . . . . . . . 52 Remove the LCD module . . . . . . . . . . . 53 Remove the upper case. . . . . . . . . . . . 55
Appendix A. Label locations. . . . . . 57
Trademarks . . . . . . . . . . . . . . . . . lix
© Copyright Lenovo 2025
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About this manual
This manual contains service and reference information for the following Lenovo products.
Model name
· Yoga 7 2-in-1 14ILL10 · Yoga 7 2-in-1 14ILL10 1
· Yoga 7 2-in-1 14AKP10 · Yoga 7 2-in-1 14AKP10 1
· Yoga 7 2-in-1 16ILL10 · Yoga 7 2-in-1 16ILL10 1 Yoga 7 2-in-1 16AKP10
Machine type (MT) 83JQ 83JR 83JT 83JU
Important:
· It is recommended that these products be repaired by trained service technicians. For customers electing to repair their own Lenovo products, please follow all instructions carefully.
· Before servicing a Lenovo product, be sure to read all the information under Chapter 1 "Safety information" on page 1.
© Copyright Lenovo 2025
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Chapter 1. Safety information
This chapter presents the following safety information that you need to be familiar with before you service a Lenovo notebook computer.
General safety
Follow these rules to ensure general safety: · Observe good housekeeping in the area of the machines during and after 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.
4. Lift by standing or by pushing up with your leg muscles; this action removes 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 equipment unsafe. · Before you start the machine, make sure that other people are not in a hazardous position. · Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the
machine. · Keep your tool case away from walk areas so that other people will not trip over it. · Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your
sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it. · Insert the ends of your necktie or scarf inside clothing or fasten it with a non-conductive clip, about 8
centimeters (3 inches) from the end. · Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.
Attention: Metal objects are good electrical conductors. · Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using
solvents, or working in any other conditions that might be hazardous to your eyes. · After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that
is worn or defective. · Reinstall all covers correctly before returning the machine to the customer. · Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan
louvers or cover them with labels or stickers.
Electrical safety
Observe the following rules when working on electrical equipment.
Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock. · Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical
accident occurs, you can then operate the switch or unplug the power cord quickly. · Do not work alone under hazardous conditions or near equipment that has hazardous voltages. · Disconnect all power before:
Performing a mechanical inspection Working near power supplies Removing or installing main units
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· Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine, and to lock the wall box in the off position.
· If you need to work on a machine that has exposed electrical circuits, observe the following precautions: Ensure that another person, familiar with the power-off controls, is near you.
Attention: Another person must be there to switch off the power, if necessary. Use only one hand when working with powered-on electrical equipment; keep the other hand in your
pocket or behind your back.
Attention: An electrical shock can occur only when there is a complete circuit. By observing the above rule, you may prevent a current from passing through your body. When using testers, set the controls correctly and use the approved probe leads and accessories for that tester. Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames. Observe the special safety precautions when you work with very high voltages; Instructions for these precautions are in the safety sections of maintenance information. Use extreme care when measuring high voltages. · Regularly inspect and maintain your electrical hand tools for safe operational condition. · Do not use worn or broken tools and testers. · Never assume that power has been disconnected from a circuit. First, check that it has been powered off. · Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, non-grounded 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 Similar units as listed above This practice ensures correct grounding of the units. · If an electrical accident occurs: Use caution; do not become a victim yourself. Switch off power. Send another person to get medical aid.
Safety inspection guide
The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service technicians from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-Lenovo features or options not covered by this inspection guide.
If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem.
Consider these conditions and the safety hazards they present: · Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal
electrical shock) · Explosive hazards, such as a damaged cathode ray tube (CRT) face or a bulging capacitor · Mechanical hazards, such as loose or missing hardware
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To determine whether there are any potentially unsafe conditions, use the following checklist at the beginning of every service task. Begin the checks with the power off, and the power cord disconnected.
Checklist: 1. Check exterior covers for damage (loose, broken, or sharp edges). 2. Power off the computer. Disconnect the power cord. 3. Check the power cord for: a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground continuity for 0.1 ohm or less between the external ground pin and the frame ground. b. The power cord should be the authorized type specified for your computer. Go to: http:// www.lenovo.com/serviceparts-lookup 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. 9. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.
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. 2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.
When handling ESD-sensitive parts: · Keep the parts in protective packages until they are inserted into the product. · Avoid contact with other people. · Wear a grounded wrist strap against your skin to eliminate static on your body. · Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when
you are wearing a wrist strap. · Use a grounded work mat to provide a static-free work surface. The mat is especially useful when
handling ESD-sensitive devices. · Select a grounding system, such as those listed below, to provide protection that meets the specific
service requirement.
Note: The use of a grounding system to guard against ESD damage is desirable but not necessary. Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground. When working on a double-insulated or battery-operated system, use an ESD common ground or
reference point. You can use coax or connector-outside shells on these systems. Use the round ground prong of the ac plug on ac-operated computers.
Chapter 1. Safety information 3
Grounding requirements
Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.
Safety notices (multilingual translations)
The safety notices in this section are provided in the following languages: · English · Arabic · Brazilian Portuguese · French · German · Hebrew · Japanese · Korean · Spanish · Traditional Chinese
DANGER
DANGER
DANGER
DANGER
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DANGER DANGER DANGER DANGER
Chapter 1. Safety information 5
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PERIGO PERIGO PERIGO PERIGO PERIGO
Chapter 1. Safety information 7
PERIGO PERIGO PERIGO DANGER DANGER DANGER 8 Hardware Maintenance Manual
DANGER DANGER DANGER DANGER DANGER VORSICHT
Chapter 1. Safety information 9
VORSICHT
VORSICHT VORSICHT VORSICHT VORSICHT 10 Hardware Maintenance Manual
VORSICHT VORSICHT
Chapter 1. Safety information 11
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Chapter 1. Safety information 13
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Chapter 1. Safety information 15
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Chapter 1. Safety information 17
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Chapter 2. General checkout
This chapter contains the following topics:
Before you go to the checkout instructions, ensure that you read the following important notes.
Important notes:
· It is recommended that only certified trained personnel perform service on the computer. For customers electing to repair their own machines, please follow all instructions carefully.
· Before replacing any FRU, read the entire page on removing and 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. If you select an incorrect drive, data or programs might be overwritten. · Replace an FRU only with another FRU of the correct model. When you replace an FRU, make sure that the model of the machine and the FRU part number are correct by referring to the FRU parts list. · An FRU should not be replaced because of a single, unreproducible failure. Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. Consider replacing an FRU only when a problem recurs. If you suspect that an FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU. · Be careful not to replace a nondefective FRU.
What to do first
When you return a 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 service technician 2. Date of service 3. Date on which the machine failed 4. Date of purchase 5. Failure symptoms, error codes appearing on the display, and beep symptoms 6. Procedure index and page number in which the failing FRU was detected 7. Failing FRU name and part number 8. Machine type, model number, and serial number 9. Customer's name and address
Note: 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. Following is a list of some common items that are not covered under warranty and some symptoms that might indicate that the system was subjected to stress beyond normal use.
Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following list:
The following are not covered under warranty: · LCD panel cracked from the application of excessive force or from being dropped · Scratched (cosmetic) parts · Distortion, deformation, or discoloration of the cosmetic parts
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· Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force · Damage caused by liquid spilled into the system · Damage caused by the improper insertion of a personal-computer card (PC card) or the installation of an
incompatible card · Improper disc insertion or use of an external optical drive · Fuses blown by attachment of a non-supported device · Forgotten computer password (making the computer unusable) · Sticky keys caused by spilling a liquid onto the keyboard · Use of an incorrect ac power adapter on laptop products
The following symptoms might indicate damage caused by non-warranted activities: · Missing parts might be a symptom of improper service or modification. · Check for obvious damage to a hard disk drive. If the spindle of a hard disk drive becomes noisy, the hard
disk drive might have been dropped or subject to excessive force.
CRU list
Table 1. Model: All CRU ac power adapter power cord Lenovo Yoga Pen*
Type self-service self-service self-service
* for selected models
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Chapter 3. Identifying FRUs (CRUs)
Locate FRUs and CRUs
The exploded illustrations help Lenovo service technicians identify FRUs or CRUs that they may need to replace when servicing a customer's computer.
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Figure 1. Exploded view (14-inch models) 22 Hardware Maintenance Manual
Figure 2. Exploded view (16-inch models)
Chapter 3. Identifying FRUs (CRUs) 23
Table 2. FRU (CRU) categories
No.
FRU (CRU) category
1
LCD module
Note: The LCD module is a FRU and it cannot be disassembled.
2
Upper case
3
I/O board
4
LVDS cable
5
I/O board cable
6
Solid-state drive (SSD) thermal pad
7
Solid-state drive (SSD)
8
PMIC board
9
Wi-Fi card
10
Wi-Fi card thermal pad*
11
CMOS battery
12
Fingerprint board cable
13
Speakers
14
Sponge
15
Battery pack cable
16
Battery bracket
17
Battery pack
18
Lower case
19
Lenovo Yoga Pen*
20
Microphone board
21
Microphone cable
22
Fan
23
Heat sink
24
System board
25
Touchpad
26
Touchpad cable
a
Power cord
b
ac power adapter
c
Screw kit
* for selected models
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Chapter 4. Removing a FRU or CRU
Service tools
The following table lists tools for servicing Lenovo computers. Tools with a cross mark are needed for serving the product models as described by this publication. Prepare them before you service the product.
Table 3. Service tools Service tool and consumable Screw driver (Phillips head) (PH1/PH0) Screw driver (Torx head) (T5) Screw driver (Torx head) (T30) Pry tool 1 Tweezers (conductive) Tweezers (isolated) Suction cup Hexagonal socket Thermal interface materials Acetate tape Polyamide tape Mylar tape Electrical tape Double-sided tape Conductive tape Eraser Heat gun Brown brush
Model applicability X X
X X
X X
Notes: · T30 screw drivers are used to service the new Intel Xeon CPUs. · Hexagonal sockets are used to remove antenna connectors.
General guidelines
When removing or replacing a FRU, ensure that you observe the following general guidelines:
1. It is recommended that only certified trained personnel perform service on the computer. For customers electing to repair their own machines, please follow all instructions carefully.
2. Begin by removing any FRUs that have to be removed before replacing the failing FRU. Any such FRUs are listed at the beginning of each FRU replacement procedure. Remove them in the order in which they are listed.
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3. Follow the correct sequence in the steps for removing a FRU, as shown in the illustrations by the numbers in square callouts.
4. When removing a FRU, move it in the direction as shown by the arrow in the illustration.
5. To install a new FRU in place, perform the removal procedure in reverse and follow any notes that pertain to replacement.
6. When replacing a FRU, carefully retain and reuse all screws.
7. When replacing the base cover, reapply all labels that come with the replacement base cover. If some original labels are not included with the replacement base cover, peal them off from the original base cover and paste them on the replacement base cover.
DANGER
Before removing any FRU or CRU, shut down the computer, unplug all power cords from electrical outlets, and wait about ten minutes to let the computer cool down.
Attention: After replacing a FRU, do not turn on the computer until you have ensured that all screws, springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.
Attention: The system board is sensitive to and can be damaged by ESD. Before touching it, establish personal grounding by touching a ground point with one hand or by using an ESD strap (P/N 6405959).
Handling thermal interface materials
Thermal interface materials are typically applied between a heat sink and a CPU (and/or GPU) die to enhance the heat transfer capability of the heat sink. If thermal interface materials are exposed during computer servicing, such as when replacing the heat sink or system board, it is important to handle the thermal interface materials properly.
· You need to completely remove the old thermal interface materials from the CPU and/or GPU die.
· You need to apply new thermal interface materials onto the heat sink according to the type, quantity, and application areas specified in this publication.
Type, quantity, and areas of thermal interface materials application on the heat sink
The table and figure below provide information on the type and quantity of thermal interface materials, as well as the specific areas on the heat sink where these materials should be applied.
Area a
Type TC5550
Quantity
· 0.15 g (Yoga 7 2-in-1 14ILL10, Yoga 7 2-in-1 16ILL10) · 0.12 g (Yoga 7 2-in-1 14AKP10, Yoga 7 2-in-1 16AKP10)
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Figure 3. Areas on the heat sink where thermal interface materials should be applied
Areas on the system board where thermal interface materials are applied
The following figure shows the areas on the system board where thermal interface materials are applied.
Figure 4. Areas on the system board where thermal interface materials are applied
Remove the lower case
Make sure the computer has been shut down before servicing the computer. Step 1. Place the computer upside down on a flat surface. Step 2. Remove seven screws.
Chapter 4. Removing a FRU or CRU 27
Figure 5. Remove seven screws
Label
1 2
Thread M2 M2
Length (mm) 7.5 3
Step 3. Pry up the latches and then remove the lower case.
Torque (kgf.cm) 2±0.2 2±0.2
Quantity 3 4
Figure 6. Remove the lower case Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Lower case
Remove the battery pack
Remove the battery pack (14-inch models)
Make sure the following FRU (or CRU) has been removed. "Remove the lower case" on page 27
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Step 1. Disconnect the battery pack cable from the system board.
Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable. Step 2. Remove three screws and then remove the battery pack.
Figure 7. Remove the battery pack
Thread M2
Length (mm) 3
Step 3. Remove the battery pack cable.
Torque (kgf.cm) 2±0.2
Quantity 3
Figure 8. Remove the battery pack cable Step 4. Remove the battery bracket.
Figure 9. Remove the battery bracket Step 5. Peel off the sponge on the back of the battery pack.
Note: The sponge is reusable. Attach the sponge to the new battery pack when replacing the battery pack.
Chapter 4. Removing a FRU or CRU 29
Figure 10. Peel off the sponge
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Battery pack Battery pack cable Battery bracket Sponge
Remove the battery pack (16-inch models)
Make sure the following FRU (or CRU) has been removed. "Remove the lower case" on page 27
Step 1. Disconnect the battery pack cable from the system board.
Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable. Step 2. Remove three screws and then remove the battery pack.
Figure 11. Remove the battery pack
Thread M2
Length (mm) 3
Step 3. Remove the battery pack cable.
Torque (kgf.cm) 2±0.2
Quantity 3
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Figure 12. Remove the battery pack cable Step 4. Remove the battery bracket.
Figure 13. Remove the battery bracket Step 5. Peel off the sponge on the back of the battery pack.
Note: The sponge is reusable. Attach the sponge to the new battery pack when replacing the battery pack.
Figure 14. Peel off the sponge Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Battery pack Battery pack cable Battery bracket Sponge
Remove the solid-state drive (SSD)
Make sure the following FRUs (or CRUs) have been removed. "Remove the lower case" on page 27
Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable. Chapter 4. Removing a FRU or CRU 31
Step 2. Remove the SSD thermal pad.
Figure 15. Remove the SSD thermal pad Step 3. Remove one screw and then remove the SSD by pulling it away from the slot.
Figure 16. Remove the SSD
Thread M2
Length (mm) 2
Torque (kgf.cm) 2±0.2
Quantity 1
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Solid-state drive (SSD) Solid-state drive (SSD) thermal pad
Remove the Wi-Fi card
Make sure the following FRU (or CRU) has been removed. "Remove the lower case" on page 27
Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable.
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Step 2. Detach the main and auxiliary antenna cable connectors. Remove one screw and then remove the Wi-Fi card by pulling it away from the slot.
Figure 17. Remove the Wi-Fi card
Thread M2
Length (mm) 2
Step 3. Remove the Wi-Fi card thermal pad.
Torque (kgf.cm) 2±0.2
Quantity 1
Figure 18. Remove the Wi-Fi card thermal pad Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Wi-Fi card Wi-Fi card thermal pad
Remove the PMIC board
Make sure the following FRU (or CRU) has been removed. "Remove the lower case" on page 27
Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable.
Step 2. Remove one screw and then remove the PMIC board.
Chapter 4. Removing a FRU or CRU 33
Figure 19. Remove the PMIC board
Thread M2
Length (mm) 2
Torque (kgf.cm) 2±0.2
Quantity 1
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
PMIC board
Remove the CMOS battery
Make sure the following FRU (or CRU) has been removed. "Remove the lower case" on page 27
Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable.
Step 2. Disconnect the CMOS battery cable from the I/O board and then remove the CMOS battery.
Figure 20. Remove the CMOS battery Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
CMOS battery
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Remove the fingerprint board cable
Make sure the following FRUs (or CRUs) have been removed. "Remove the lower case" on page 27 "Remove the battery pack" on page 28
Step 1. Disconnect the fingerprint board cable from the fingerprint board and system board, and then remove the fingerprint board cable.
Figure 21. Remove the fingerprint board cable
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Fingerprint board cable
Remove the microphone board
Make sure the following FRUs (or CRUs) have been removed. "Remove the lower case" on page 27 "Remove the battery pack" on page 28
Step 1. Disconnect the microphone cable from the system board and then remove the microphone board.
Figure 22. Remove the microphone board
Chapter 4. Removing a FRU or CRU 35
Step 2. Remove the microphone cable from the microphone board.
Figure 23. Remove the microphone cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Microphone board Microphone cable
Remove the touchpad Remove the touchpad (14-inch models)
Make sure the following FRUs (or CRUs) have been removed. "Remove the lower case" on page 27 "Remove the battery pack" on page 28
Step 1. Disconnect the touchpad cable and the microphone cable from the system board, and then peel back the tape.
Figure 24. Disconnect the touchpad cable and the microphone cable Step 2. Remove six screws. 36 Hardware Maintenance Manual
Figure 25. Remove six screws
Thread M1.6
Length (mm) 1.7
Step 3. Remove the touchpad.
Torque (kgf.cm) 1.2±0.1
Quantity 6
Figure 26. Remove the touchpad Step 4. Remove the touchpad cable from the touchpad.
Figure 27. Remove the touchpad cable Refer to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Touchpad Touchpad cable
Remove the touchpad (16-inch models)
Make sure the following FRUs (or CRUs) have been removed.
Chapter 4. Removing a FRU or CRU 37
"Remove the lower case" on page 27 "Remove the battery pack" on page 28
Step 1. Disconnect the touchpad cable from the system board and then remove seven screws.
Figure 28. Remove seven screws
Thread M1.6
Length (mm) 1.7
Step 2. Remove the touchpad.
Torque (kgf.cm) 1.2±0.1
Quantity 7
Figure 29. Remove the touchpad Step 3. Remove the touchpad cable from the touchpad.
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Figure 30. Remove the touchpad cable
Refer to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Touchpad Touchpad cable
Remove the speakers
Remove the speakers (14-inch models)
Make sure the following FRUs (or CRUs) have been removed. "Remove the lower case" on page 27 "Remove the battery pack" on page 28
Step 1. Peel off the two pieces of tape, disconnect the speaker cables from the I/O board and system board, and then remove the speakers.
Figure 31. Remove the speakers
Chapter 4. Removing a FRU or CRU 39
Refer to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Speakers
Remove the speakers (16-inch models)
Make sure the following FRU (or CRU) has been removed. "Remove the lower case" on page 27
Step 1. Disconnect the battery pack cable from the system board.
Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable. Step 2. Disconnect the speaker cables from the I/O board and system board, and then release the cables
from the cable guide.
Figure 32. Disconnect the speaker cables Step 3. Remove four screws and then remove the speakers.
Figure 33. Remove the speakers
Thread M2
Length (mm) 3
Torque (kgf.cm) 2±0.2
Quantity 4
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Refer to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Speakers
Remove the heat sink
Make sure the following FRU (or CRU) has been removed. "Remove the lower case" on page 27
Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable.
Step 2. Remove four screws and then remove the heat sink.
Figure 34. Remove the heat sink
Thread M1.6
Length (mm) 1.7
Torque (kgf.cm) 1.4±0.1
Quantity 4
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Heat sink Related topics "Handling thermal interface materials " on page 26
Remove the fan
Remove the fan (14-inch models)
Make sure the following FRUs (or CRUs) have been removed. "Remove the lower case" on page 27 "Remove the battery pack" on page 28 "Remove the heat sink" on page 41
Step 1. Disconnect the fan cable from the system board and then release the cable from the cable guide.
Chapter 4. Removing a FRU or CRU 41
Figure 35. Disconnect the fan cable Step 2. Remove one screw and then remove the fan.
Figure 36. Remove the fan
Thread M2
Length (mm) 3
Torque (kgf.cm) 2±0.2
Quantity 1
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Fan
Remove the fan (16-inch models)
Make sure the following FRUs (or CRUs) have been removed. "Remove the lower case" on page 27 "Remove the heat sink" on page 41
Step 1. Disconnect the fan cable from the system board and then release the cable from the cable guide.
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Figure 37. Disconnect the fan cable Step 2. Remove two screws and then remove the fan.
Figure 38. Remove the fan
Thread M2
Length (mm) 3
Torque (kgf.cm) 2±0.2
Quantity 2
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Fan
Remove the I/O board
Remove the I/O board (14-inch models)
Make sure the following FRU (or CRU) has been removed. "Remove the lower case" on page 27
Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable.
Step 2. Remove three screws and then flip the hinge.
Chapter 4. Removing a FRU or CRU 43
Figure 39. Flip the hinge
Thread M2.5
Length (mm) 5.5
Torque (kgf.cm) 3±0.3
Step 3. Disconnect all cables connected to the I/O board.
Quantity 3
Figure 40. Disconnect all cables connected to the I/O board Step 4. Remove one screw and then remove the I/O board.
Figure 41. Remove the I/O board
Thread M2
Length (mm) 3
Torque (kgf.cm) 2±0.2
Quantity 1
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
44 Hardware Maintenance Manual
I/O board
Remove the I/O board (16-inch models)
Make sure the following FRU (or CRU) has been removed. "Remove the lower case" on page 27
Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable.
Step 2. Remove three screws and then flip the hinge.
Figure 42. Flip the hinge
Thread M2.5
Length (mm) 5.5
Torque (kgf.cm) 3±0.3
Step 3. Disconnect all cables connected to the I/O board.
Quantity 3
Figure 43. Disconnect all cables connected to the I/O board Step 4. Remove two screws and then remove the I/O board.
Chapter 4. Removing a FRU or CRU 45
Figure 44. Remove the I/O board
Thread M2
Length (mm) 3
Torque (kgf.cm) 2±0.2
Quantity 2
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
I/O board
Remove the system board
Remove the system board (14-inch models)
Make sure the following FRUs (or CRUs) have been removed. "Remove the lower case" on page 27 "Remove the battery pack" on page 28 "Remove the solid-state drive (SSD)" on page 31 "Remove the Wi-Fi card" on page 32 "Remove the PMIC board" on page 33 "Remove the heat sink" on page 41 "Remove the fan" on page 41
Step 1. Peel off the tape, remove three screws and then flip the hinge.
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Figure 45. Remove three screws and flip the hinge
Thread M2.5
Length (mm) 5.5
Torque (kgf.cm) 3±0.3
Step 2. Disconnect all cables connected to the system board.
Quantity 3
Chapter 4. Removing a FRU or CRU 47
Figure 46. Disconnect cables connected to the system board Step 3. Remove five screws and then remove the system board.
Figure 47. Remove the system board
Thread M2
Length (mm) 3
48 Hardware Maintenance Manual
Torque (kgf.cm) 2±0.2
Quantity 5
Step 4. Turn over the system board and then peel off the tape.
Figure 48. Peel off the tape Step 5. Remove the I/O board cable from the system board.
Figure 49. Remove the I/O board cable Step 6. Remove the LVDS cable from the system board.
Figure 50. Remove the LVDS cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
System board LVDS cable I/O board cable Related topics "Handling thermal interface materials " on page 26
Remove the system board (16-inch models)
Make sure the following FRUs (or CRUs) have been removed. Chapter 4. Removing a FRU or CRU 49
"Remove the lower case" on page 27 "Remove the battery pack" on page 28 "Remove the solid-state drive (SSD)" on page 31 "Remove the Wi-Fi card" on page 32 "Remove the PMIC board" on page 33 "Remove the heat sink" on page 41 "Remove the fan" on page 41
Step 1. Peel off the tape, remove three screws, and then flip the hinge.
Figure 51. Remove three screws and flip the hinge
Thread M2.5
Length (mm) 5.5
Torque (kgf.cm) 3±0.3
Step 2. Disconnect all cables connected to the system board.
Quantity 3
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Figure 52. Disconnect cables connected to the system board Step 3. Remove five screws and then remove the system board.
Figure 53. Remove the system board
Thread M2
Length (mm) 3
Torque (kgf.cm) 2±0.2
Quantity 5
Chapter 4. Removing a FRU or CRU 51
Step 4. Turn over the system board, and then remove the I/O board cable from the system board.
Figure 54. Remove the I/O board cable Step 5. Remove the LVDS cable from the system board.
Figure 55. Remove the LVDS cable Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
System board LVDS cable I/O board cable Related topics "Handling thermal interface materials " on page 26
Write key product information to a replacement system board
Some key product information and settings are stored in the ROMs of the PC's system board. The information and settings are essential for using and servicing a Lenovo PC. After replacing a system board for a Lenovo PC, you need to use a Lenovo-provided software tool to write key information--including machine type model (MTM), serial number (SN), and product name--as well as settings such as keyboard language to the replacement system board. For service technicians, go to https://support.lenovo.com/us/en/solutions/ht102004 for detailed instructions on how to create and use a Golden Key U1 tool or a normal BIOS tool. For users, follow the following steps:
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Attention: Take extra caution when entering the MTM and SN and when selecting the product name and keyboard language. Carefully verify these details before committing the writing action. Once recorded on the system board, they cannot be altered. Consult Lenovo service if you are uncertain about the MTM, SN, and product name for your PC.
Step 1. Step 2.
Step 3.
Step 4. Step 5. Step 6. Step 7.
Connect the ac power adapter and turn on the computer.
Download the tool package and double-click the WinMBDWizard.exe file to run the tool. To download the tool, go to https://support.lenovo.com/solutions/HT516532.
Follow the on-screen instructions to input the MTM and SN, select the product name and keyboard language of the computer.
Click Start Update to update the product information.
Click Yes in the confirmation window to continue the update.
Click Finish to close the tool.
Click Yes in the confirmation window to restart the computer and apply the configuration on the system board.
Note: Do not turn off the computer or disconnect the computer from ac power during the whole process.
Remove the LCD module
Make sure the following FRU (CRU) has been removed. "Remove the lower case" on page 27
Step 1. Disconnect the battery pack cable from the system board.
Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable. Step 2. Peel off the tape, disconnect the EDP cable and camera cable from the system board, and then
detach the main and auxiliary antenna cable connectors.
Figure 56. Disconnect the cables (14-inch models) Chapter 4. Removing a FRU or CRU 53
Figure 57. Disconnect the cables (16-inch models) Step 3. Rotate the LCD module to an angle of more than 90 degrees and place the computer on a flat
surface as shown. Remove six screws and then remove the LCD module.
Figure 58. Remove the LCD module (14-inch models)
Figure 59. Remove the LCD module (16-inch models) 54 Hardware Maintenance Manual
Thread M2.5
Length (mm) 5.5
Torque (kgf.cm) 3±0.3
Quantity 6
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
LCD module
Remove the upper case
Make sure the following FRUs (or CRUs) have been removed. "Remove the lower case" on page 27 "Remove the battery pack" on page 28 "Remove the solid-state drive (SSD)" on page 31 "Remove the Wi-Fi card" on page 32 "Remove the PMIC board" on page 33 "Remove the CMOS battery" on page 34 "Remove the fingerprint board cable" on page 35 "Remove the microphone board" on page 35 "Remove the touchpad" on page 36 "Remove the speakers" on page 39 "Remove the heat sink" on page 41 "Remove the fan" on page 41 "Remove the I/O board" on page 43 "Remove the system board" on page 46 "Remove the LCD module" on page 53
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Upper case
Chapter 4. Removing a FRU or CRU 55
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Appendix A. Label locations
Figure 60. Label layout on the back side of the base cover
Labels attached to the base cover are country/region specific. Make sure to apply the appropriate labels to the replacement base cover.
Table 4. All base cover labels
Label a b c
Label name GML label Lenovo Carbon Neutral Logo Country label
d
Applied country/region
Coin BATT Warning for USA Indonesia D cover label
Label dimensions 16 mm x 22.5 mm 43.11 mm x 16.2 mm 120 mm x 20 mm 40 mm x 10 mm
© Copyright Lenovo 2025
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Trademarks
LENOVO and the LENOVO logo are trademarks of Lenovo.
All other trademarks are the property of their respective owners. © 2024 Lenovo.
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