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Lenovo IdeaPad Yoga Slim 7 Pro 14ARH5 Laptop Hardware Maintenance Manual PDF
Summary of Content for Lenovo IdeaPad Yoga Slim 7 Pro 14ARH5 Laptop Hardware Maintenance Manual PDF
Hardware Maintenance Manual
Yoga Slim 7i Pro (14, 7), Yoga Slim 7 Pro (14, 7), Lenovo Slim 7i (14,
7) and Lenovo Slim 7 (14, 7)
First Edition (February 2022)
Copyright Lenovo 2022.
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 . . . . . 21 What to do first . . . . . . . . . . . . . . . 21 CRU list . . . . . . . . . . . . . . . . . . 22
Chapter 3. Identifying FRUs (CRUs) . . . . . . . . . . . . . . . . . 23 Locate FRUs and CRUs . . . . . . . . . . . 23
Chapter 4. Removing a FRU or CRU . . . . . . . . . . . . . . . . . . 31 Service tools . . . . . . . . . . . . . . . . 31 General guidelines. . . . . . . . . . . . . . 31 Remove the lower case . . . . . . . . . . . . 32 Remove the charge thermal pad . . . . . . . . 33 Remove the battery pack . . . . . . . . . . . 34 Remove the solid-state drive (SSD) module (2242). . . . . . . . . . . . . . . . . . . 34 Remove the Wi-Fi card . . . . . . . . . . . . 36 Remove the speakers . . . . . . . . . . . . 36 Remove the type-C bracket . . . . . . . . . . 37 Remove the touchpad cable . . . . . . . . . . 38 Remove the heat sink . . . . . . . . . . . . 38
Remove the fans . . . . . . . . . . . . . . 39 Remove the I/O board . . . . . . . . . . . . 40 Remove the system board and the I/O board cable . . . . . . . . . . . . . . . . . . . 42
Use a Golden Key U1 tool to flash-write key id information . . . . . . . . . . . . . . . 44
Remove the LCD module . . . . . . . . . . . 45 Remove the upper case. . . . . . . . . . . . 46 Disassemble the LCD unit (mylar version) . . . . . 47
Remove the hinge cover. . . . . . . . . . 47 Remove the LCD bezel . . . . . . . . . . 47 Remove the strip cover . . . . . . . . . . 48 Remove the LCD panel . . . . . . . . . . 49 Remove the hinges. . . . . . . . . . . . 50 Remove the EDP cable . . . . . . . . . . 51 Remove the camera cable . . . . . . . . . 51 Remove the camera rubber . . . . . . . . 52 Remove the microphone rubbers . . . . . . 53 Remove the camera module . . . . . . . . 53 Remove the LCD cover . . . . . . . . . . 54
Disassemble the LCD unit (glass version) . . . . . 54 Remove the hinge cover. . . . . . . . . . 55 Remove the hinges. . . . . . . . . . . . 55 Remove the strip cover . . . . . . . . . . 56 Remove the LCD panel and the EDP cable . . 57 Remove the microphone rubber. . . . . . . 58 Remove the camera rubber . . . . . . . . 58 Remove the camera module . . . . . . . . 59 Remove the camera cable . . . . . . . . . 60 Remove the LCD cover . . . . . . . . . . 60
Trademarks . . . . . . . . . . . . . . . . lxiii
Copyright Lenovo 2022 i
ii Hardware Maintenance Manual
About this manual
This manual contains service and reference information for the following Lenovo products.
Machine Machine type (MT)
Yoga Slim 7 Pro 14IAP7 82SV
Yoga Slim 7 Pro 14IAH7 82UT
Yoga Slim 7 Pro 14ARH7 82UU
Lenovo Slim 7 14IAP7 82SX
Lenovo Slim 7 14ARH7 82UV
Important:
This manual is intended only for trained service technicians who are familiar with Lenovo products.
Before servicing a Lenovo product, be sure to read all the information under Chapter 1 Safety information on page 1.
Copyright Lenovo 2022 iii
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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 service technicians and the customer's personnel 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
Copyright Lenovo 2022 1
Removing or installing main units 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
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DANGER
DANGER
DANGER
DANGER
DANGER
Chapter 1. Safety information 5
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PERIGO
PERIGO
PERIGO
Chapter 1. Safety information 7
PERIGO
PERIGO
PERIGO
PERIGO
PERIGO
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DANGER
DANGER
DANGER
DANGER
Chapter 1. Safety information 9
DANGER
DANGER
DANGER
DANGER
VORSICHT
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VORSICHT
VORSICHT
VORSICHT
VORSICHT
Chapter 1. Safety information 11
VORSICHT
VORSICHT
VORSICHT
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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:
Only certified trained personnel should service the computer.
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 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 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 Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force Damage caused by liquid spilled into the system
Copyright Lenovo 2022 21
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 unauthorized 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: Yoga Slim 7 Pro 14IAP7, Yoga Slim 7 Pro 14IAH7, Yoga Slim 7 Pro 14ARH7, Lenovo Slim 7 14IAP7, and Lenovo Slim 7 14ARH7 (MT: 82SV, 82UT, 82UU, 82SX, and 82UV)
CRU Type
ac power adapter self-service
Power cord self-service
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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 customers computer.
Copyright Lenovo 2022 23
Figure 1. Yoga Slim 7 Pro 14IAP7, Yoga Slim 7 Pro 14IAH7, Yoga Slim 7 Pro 14ARH7, Lenovo Slim 7 14IAP7, and Lenovo Slim 7 14ARH7 exploded view
24 Hardware Maintenance Manual
Table 2. FRU (CRU) categories
No. FRU (CRU) category
1 Upper case (with keyboard and touchpad)
2 Type-C conductive tape
3 System board
4 I/O board cable
5 I/O board
6 Solid-state drive (SSD) (2280)
7 Solid-state drive (SSD) (2242)
8 SSD bracket
9 SSD thermal pad
10 Battery pack mylar
11 Battery pack
12 Speakers
13 Lower case
14 Charge thermal pad
15 VRAM Absorber tape
16 Heat sink
17 Wi-Fi card
18 Fans
19 Touchpad cable
20 TypeC bracket
a Power cord
b ac power adapter
c Screw kit
Chapter 3. Identifying FRUs (CRUs) 25
Figure 2. LCD module (glass version) exploded view
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Figure 3. LCD module (mylar version) exploded view
Chapter 3. Identifying FRUs (CRUs) 27
Figure 4. LCD module (OLED version) exploded view
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Table 3. FRU categories for the LCD module
No. FRU (CRU) category
1 LCD cover
2 Removable tape
3 Hinge
4 Hinge cover
5 Strip cover
6 EDP cable
7 Camera cable
8 LCD module (including glass version, mylar version, and OLED version)
9 Camera module
10 Microphone rubbers
11 Camera rubber
12 LCD bezel
13 Microphone EMC tape
14 Microphone board
15 Microphone thermal Cu foil
Chapter 3. Identifying FRUs (CRUs) 29
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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 4. Service tools
Service tool and consumable Model applicability
Screw driver (Phillips head) (PH1/PH01) X
Screw driver (Torx head) (T5) X
Screw driver (Torx head) (T30)
Pry tool 1 X
Tweezers (conductive) X
Tweezers (isolated)
Suction cup
Hexagonal socket
Silicone grease
Acetate tape X
Polyamide tape
Mylar tape
Electrical tape
Double-sided tape
Conductive tape
Eraser
Heat gun
Brown brush
Notes:
T30 screw drivers are used to service the new Intel Xeon CPUs.
Hexagonal sockets are used to remove antenna connectors.
Silicone grease is applied to the CPU and heatsink surfaces to eliminate air gaps.
General guidelines When removing or replacing an FRU, ensure that you observe the following general guidelines:
1. Do not try to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts.
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.
Copyright Lenovo 2022 31
3. Follow the correct sequence in the steps for removing an FRU, as shown in the illustrations by the numbers in square callouts.
4. When removing an 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 an 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, peel 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 and unplug all power cords from electrical outlets.
Attention: After replacing an 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).
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.
Figure 5. Remove seven screws
32 Hardware Maintenance Manual
Screw specifications Number of screws
M2 x L5.5 3
M2 x L3.5 4
Step 3. Pry up the latches and then remove the lower case.
Figure 6. Pry up the latches and 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 charge thermal pad Make sure the following FRU (or CRU) has been removed.
Remove the lower case on page 32
Step 1. Remove the charge thermal pad from the lower case.
Figure 7. Remove the charge thermal pad
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Charge thermal pad
Chapter 4. Removing a FRU or CRU 33
Remove the battery pack Make sure the following FRU (or CRU) has been removed.
Remove the lower case on page 32
Step 1. Disconnect the battery pack cable from the system board, remove five screws and then remove the battery pack.
Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable.
Figure 8. Remove the battery pack
Screw specifications Number of screws
M2 x L4 5
Step 2. Remove the battery pack mylar.
Figure 9. Remove the battery pack mylar
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Battery pack
Battery pack mylar
Remove the solid-state drive (SSD) module (2242) Make sure the following FRU (or CRU) has been removed.
Remove the lower case on page 32
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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 the SSD thermal pad
Figure 10. Remove the SSD thermal pad
Step 3. Remove one screw and then remove the SSD module by pulling it away from the slot.
Figure 11. Remove the SSD module
Screw specifications Number of screws
M2 x L1.8 1
Step 4. Remove the SSD bracket.
Figure 12. Remove the SSD bracket
Chapter 4. Removing a FRU or CRU 35
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
Solid-state drive (SSD) bracket
Remove the Wi-Fi card Make sure the following FRU (or CRU) has been removed.
Remove the lower case on page 32
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. 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 13. Remove the Wi-Fi card
Screw specifications Number of screws
M2 x L1.8 1
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Wi-Fi card
Remove the speakers Make sure the following FRU (or CRU) has been removed.
Remove the lower case on page 32
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 cable from the system board. Release the speaker cable from the cable guide. Remove four screws and then remove the speakers.
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Figure 14. Remove the speakers
Screw specifications Number of screws
M2 x L1.8 4
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Speakers
Remove the type-C bracket Make sure the following FRU (or CRU) has been removed.
Remove the lower case on page 32
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 two screws and then remove the type-C bracket.
Figure 15. Remove the type-C bracket
Screw specifications Number of screws
M2 x L4 2
Chapter 4. Removing a FRU or CRU 37
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Type-C bracket
Remove the touchpad cable Make sure the following FRUs (or CRUs) have been removed.
Remove the lower case on page 32
Remove the battery pack on page 34
Step 1. Disconnect the touchpad cable from the system board and the touchpad. Remove the touchpad cable.
Figure 16. Remove the touchpad cable
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Touchpad cable
Remove the heat sink Make sure the following FRU (or CRU) has been removed.
Remove the lower case on page 32
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 VRAM Absorber tape, loose five screws and then remove the heat sink.
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Figure 17. Loose five screws and then remove the heat sink
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Heat sink
VRAM Absorber tape
Remove the fans Make sure the following FRUs (or CRUs) have been removed.
Remove the lower case on page 32
Remove the heat sink on page 38
Step 1. Disconnect the fan cables from the system board and then release the antenna cables and EDP cable from the cable guide.
Figure 18. Disconnect the fan cables and then release the cables
Step 2. Remove six screws and then remove the fans.
Chapter 4. Removing a FRU or CRU 39
Figure 19. Remove the fans
Screw specifications Number of screws
M2 x L2.7 6
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Fans
Remove the I/O board Make sure the following FRUs (or CRUs) have been removed.
Remove the lower case on page 32
Remove the heat sink on page 38
Step 1. Remove one of the fans.
Note: See the Remove the fans on page 39 for details.
Step 2. Remove three screws and then open the hinge.
40 Hardware Maintenance Manual
Figure 20. Remove three screws and open the hinge
Screw specifications Number of screws
M2.5 x L4.5 3
Step 3. Disconnect the I/O board cable from the I/O board. Remove two screws and then remove the I/O board.
Figure 21. Remove the I/O board
Screw specifications Number of screws
M2 x L2.7 2
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
I/O board
Chapter 4. Removing a FRU or CRU 41
Remove the system board and the I/O board cable Make sure the following FRUs (or CRUs) have been removed.
Remove the lower case on page 32
Remove the battery pack on page 34
Remove the solid-state drive (SSD) module (2242) on page 34
Remove the Wi-Fi card on page 36
Remove the type-C bracket on page 37
Remove the heat sink on page 38
Remove the fans on page 39
Step 1. Remove three screws and then open the hinge.
Figure 22. Remove three screws and then open the hinge
Screw specifications Number of screws
M2.5 x L4 3
Step 2. Disconnect cables connected to the system board and disconnect the I/O board cable from the I/O board.
42 Hardware Maintenance Manual
Figure 23. Disconnect cables connected to the system board and disconnect the I/O board cable
Step 3. Remove four screws and then lift the system board with the I/O board cable slightly.
Figure 24. Lift the system board with the I/O board cable
Screw specifications Number of screws
M2 x L2.7 4
Step 4. Turn over the system board. Disconnect the coin cell battery cable from the system board and then remove the system board
Chapter 4. Removing a FRU or CRU 43
Figure 25. Remove the system board with the I/O board cable
Step 5. Disconnect the I/O board cable from the system board and then remove the I/O board cable.
Figure 26. Remove the I/O board cable
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
System board
I/O board cable
Use a Golden Key U1 tool to flash-write key id information After replacing the system board and re-assembling the computer, use a pre-made Golden Key U1 tool to start the computer and flash-write the serial number (SN), machine type (MT), product name (PN), and UUID to the new system board.
The Golden Key U1 tool is prepared by running the U1 Update software on a FAT32-formatted USB thumb drive. Go to http://support.lenovo.com/us/en/solutions/HT506954 for detailed instructions on how to create and use a Golden Key U1 tool.
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Remove the LCD module Make sure the following FRU (or CRU) has been removed.
Remove the lower case on page 32
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 antenna cables, the camera cable and the EDP cable from the system board and release the cables. Release the antenna cables and EDP cable from the cable guide.
Figure 27. Disconnect the cables and release the cables (mylar version)
Figure 28. Disconnect the cables and release the cables (glass version)
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.
Chapter 4. Removing a FRU or CRU 45
Figure 29. Remove the LCD module (mylar version)
Figure 30. Remove the LCD module (glass version)
Screw specifications Number of screws
M2.5 x L4.5 6
The LCD module is not a FRU. Instead, it contains FRUs as its components. Refer to Disassemble the LCD unit (mylar version) on page 47 if you need to replace a FRU contained in the LCD module.
Remove the upper case Make sure the following FRUs (CRUs) have been removed.
Remove the lower case on page 32
Remove the battery pack on page 34
Remove the solid-state drive (SSD) module (2242) on page 34
46 Hardware Maintenance Manual
Remove the Wi-Fi card on page 36
Remove the speakers on page 36
Remove the type-C bracket on page 37
Remove the touchpad cable on page 38
Remove the heat sink on page 38
Remove the fans on page 39
Remove the I/O board on page 40
Remove the system board and the I/O board cable on page 42
Remove the LCD module on page 45
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Upper case
Disassemble the LCD unit (mylar version) The LCD unit as a whole is not an FRU. Instead, it contains FRUs as its components. Before disassembling the LCD unit, make sure it has been detached from the upper case.
Remove the hinge cover Make sure the following unit has been removed.
Remove the LCD module on page 45
Step 1. Remove the hinge cover.
Figure 31. Remove the hinge cover
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Hinge cover
Remove the LCD bezel Make sure the following FRU (CRU) has been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 47
Chapter 4. Removing a FRU or CRU 47
Step 1. Remove the LCD bezel.
Figure 32. Remove the LCD bezel
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
LCD bezel
Remove the strip cover Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 47
Remove the LCD bezel on page 47
Step 1. Remove seven screws and then remove the strip cover.
Figure 33. Remove the strip cover
Screw specifications Number of screws
M1.2 x L3.4 7
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Strip cover
48 Hardware Maintenance Manual
Remove the LCD panel Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 47
Remove the LCD bezel on page 47
Remove the strip cover on page 48
Step 1. Remove the two pieces of removable tape with tweezers.
Note: The removable tape are not reusable. Replace them when replacing related FRUs.
Figure 34. Remove the two pieces of removable tape with tweezers
Step 2. Lift the LCD panel carefully. Peel off the tape and disconnect the EDP cable from the LCD panel, then remove the LCD panel.
Figure 35. Remove the LCD panel
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
LCD panel
Chapter 4. Removing a FRU or CRU 49
Removable tape
Remove the hinges Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 47
Remove the LCD bezel on page 47
Remove the strip cover on page 48
Remove the LCD panel on page 49
Step 1. Peel off the tape that secure the cables.
Figure 36. Peel off the tape
Step 2. Remove six screws and then remove the hinges.
Figure 37. Remove six screws and remove the hinges
Screw specifications Number of screws
M2 x L5.5 6
50 Hardware Maintenance Manual
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Hinges
Removable tape
Remove the EDP cable Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 47
Remove the LCD bezel on page 47
Remove the strip cover on page 48
Remove the LCD panel on page 49
Step 1. Peel off the tape that secure the EDP cable and then remove the EDP cable.
Figure 38. Remove the EDP cable
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
EDP cable
Removable tape
Remove the camera cable Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 47
Remove the LCD bezel on page 47
Remove the strip cover on page 48
Remove the LCD panel on page 49
Step 1. Peel off the tape that secure the camera cable. Disconnect the camera cable from the camera board and then peel off the camera cable from the LCD cover.
Chapter 4. Removing a FRU or CRU 51
Figure 39. Remove the camera cable
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Camera cable
Removable tape
Remove the camera rubber Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 47
Remove the LCD bezel on page 47
Remove the strip cover on page 48
Remove the LCD panel on page 49
Step 1. Remove the camera rubber
Figure 40. Remove the camera rubber
52 Hardware Maintenance Manual
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Camera rubber
Removable tape
Remove the microphone rubbers Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 47
Remove the LCD bezel on page 47
Remove the strip cover on page 48
Remove the LCD panel on page 49
Step 1. Remove the two microphone rubbers.
Figure 41. Remove the microphone rubbers
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Microphone rubbers
Removable tape
Remove the camera module Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 47
Remove the LCD bezel on page 47
Remove the strip cover on page 48
Remove the LCD panel on page 49
Remove the camera rubber on page 52
Step 1. Disconnect the camera cable from the camera module. Remove the camera module.
Chapter 4. Removing a FRU or CRU 53
Figure 42. Remove the camera module
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Camera module
Removable tape
Remove the LCD cover Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 47
Remove the LCD bezel on page 47
Remove the strip cover on page 48
Remove the LCD panel on page 49
Remove the hinges on page 50
Remove the EDP cable on page 51
Remove the camera cable on page 51
Remove the camera rubber on page 52
Remove the microphone rubbers on page 53
Remove the camera module on page 53
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
LCD cover
Disassemble the LCD unit (glass version) The LCD unit as a whole is not an FRU. Instead, it contains FRUs as its components. Before disassembling the LCD unit, make sure it has been detached from the upper case.
54 Hardware Maintenance Manual
Remove the hinge cover Make sure the following unit has been removed.
Remove the LCD module on page 45
Step 1. Remove the hinge cover.
Figure 43. Remove the hinge cover
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Hinge cover
Remove the hinges Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 55
Step 1. Peel off the tape that secure the cables.
Figure 44. Peel off the tape
Step 2. Remove six screws and then remove the hinges.
Chapter 4. Removing a FRU or CRU 55
Figure 45. Remove six screws and remove the hinges
Screw specifications Number of screws
M2 x L5.5 6
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Hinges
Remove the strip cover Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 55
Remove the hinges on page 55
Step 1. Remove five screws and then remove the strip cover.
Figure 46. Remove the strip cover
Screw specifications Number of screws
M1.2 x L3.4 5
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
Strip cover
56 Hardware Maintenance Manual
Remove the LCD panel and the EDP cable Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 55
Remove the hinges on page 55
Remove the strip cover on page 56
Step 1. Remove the two pieces of removable tape with tweezers. Then remove the LCD panel.
Note: The removable tape are not reusable. Replace them when replacing related FRUs.
Figure 47. Remove the LCD panel
Step 2. Disconnect the EDP cable from the LCD panel and then remove the EDP cable.
Figure 48. Remove the EDP cable
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Chapter 4. Removing a FRU or CRU 57
LCD panel
EDP cable
Removable tape
Remove the microphone rubber Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 55
Remove the hinges on page 55
Remove the strip cover on page 56
Remove the LCD panel and the EDP cable on page 57
Step 1. Remove the two microphone rubber.
Figure 49. Remove the microphone rubber
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Microphone rubber
Removable tape
Remove the camera rubber Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 55
Remove the hinges on page 55
Remove the strip cover on page 56
Remove the LCD panel and the EDP cable on page 57
Step 1. Remove the camera rubber
58 Hardware Maintenance Manual
Figure 50. Remove the camera rubber
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Camera rubber
Removable tape
Remove the camera module Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 55
Remove the hinges on page 55
Remove the strip cover on page 56
Remove the LCD panel and the EDP cable on page 57
Remove the microphone rubber on page 58
Remove the camera rubber on page 58
Step 1. Disconnect the camera cable from the camera module. Remove the camera module.
Figure 51. Remove the camera module
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Camera module
Removable tape
Chapter 4. Removing a FRU or CRU 59
Remove the camera cable Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 55
Remove the hinges on page 55
Remove the strip cover on page 56
Remove the LCD panel and the EDP cable on page 57
Remove the microphone rubber on page 58
Remove the camera rubber on page 58
Step 1. Disconnect the camera cable from the camera board and then peel off the camera cable from the LCD cover.
Figure 52. Remove the camera cable
Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:
Camera cable
Removable tape
Remove the LCD cover Make sure the following FRUs (CRUs) have been removed.
Remove the LCD module on page 45
Remove the hinge cover on page 55
Remove the hinges on page 55
Remove the strip cover on page 56
Remove the LCD panel and the EDP cable on page 57
Remove the microphone rubber on page 58
Remove the camera rubber on page 58
Remove the camera module on page 59
Remove the camera cable on page 60
Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:
60 Hardware Maintenance Manual
LCD cover
Chapter 4. Removing a FRU or CRU 61
62 Hardware Maintenance Manual
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