Lenovo IdeaPad 5 Pro 16ARH7 Laptop Hardware Maintenance Manual PDF

Hardware Maintenance Manual

IdeaPad 5i (14, 7), IdeaPad 5 (14, 7), IdeaPad 5i (15, 7) and IdeaPad

5 (15, 7)

First Edition (March 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 . . . . . . . . . . . . . . . . . . 33 Service tools . . . . . . . . . . . . . . . . 33 General guidelines. . . . . . . . . . . . . . 33 Removal procedure for 14-inch models . . . . . 34

Remove the lower case . . . . . . . . . . 34 Remove the battery pack . . . . . . . . . 35 Remove the solid-state drive (SSD) module . . 36 Remove the Wi-Fi card . . . . . . . . . . 37 Remove the heat sink. . . . . . . . . . . 38 Remove the fan . . . . . . . . . . . . . 39

Remove the speakers. . . . . . . . . . . 40 Remove the I/O board . . . . . . . . . . 40 Remove the fingerprint board with cable . . . 42 Remove the system board and the I/O board cable . . . . . . . . . . . . . . . . . 43 Remove the LCD module . . . . . . . . . 45 Remove the upper case . . . . . . . . . . 46 Disassemble the LCD module . . . . . . . 46

Removal procedure for 15-inch models . . . . . 51 Remove the lower case . . . . . . . . . . 51 Remove the battery pack . . . . . . . . . 52 Remove the solid-state drive (SSD) module . . 53 Remove the hard disk drive (HDD) module . . 54 Remove the Wi-Fi card . . . . . . . . . . 56 Remove the heat sink. . . . . . . . . . . 56 Remove the fan . . . . . . . . . . . . . 57 Remove the speaker . . . . . . . . . . . 58 Remove the CMOS battery . . . . . . . . 59 Remove the I/O board and the I/O board cable . . . . . . . . . . . . . . . . . 59 Remove the fingerprint board and fingerprint board cable . . . . . . . . . . . . . . 61 Remove the system board . . . . . . . . . 62 Remove the LCD module . . . . . . . . . 64 Remove the upper case . . . . . . . . . . 65 Disassemble the LCD module . . . . . . . 65

Appendix A. Label locations. . . . . . 71 Trademarks . . . . . . . . . . . . . . . . lxxiii

Copyright Lenovo 2022 i

ii Hardware Maintenance Manual

About this manual

This manual contains service and reference information for the following Lenovo products.

Model name Machine type (MT)

IdeaPad 5 14IAL7 82SD

IdeaPad 5 14ABA7 82SE

IdeaPad 5 15IAL7 82SF

IdeaPad 5 15ABA7 82SG

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

iv Hardware Maintenance Manual

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 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 1. Safety information 19

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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. Models: IdeaPad 5 14IAL7 (MT: 82SD)

CRU Type

ac power adapter self-service

Power cord self-service

Table 2. Models: IdeaPad 5 14ABA7 (MT: 82SE)

CRU Type

ac power adapter self-service

Power cord self-service

Table 3. Models: IdeaPad 5 15IAL7 (MT: 82SF)

CRU Type

ac power adapter self-service

Power cord self-service

Table 4. Models: IdeaPad 5 15ABA7 (MT: 82SG)

CRU Type

ac power adapter self-service

Power cord self-service

22 Hardware Maintenance Manual

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. 14-inch models - Exploded view

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Table 5. FRU (CRU) categories

No. FRU (CRU) category

1 LCD module Note: The LCD module as a whole is not an FRU, it contains FRUs as its components.

2 Upper case

3 Fingerprint board with cable

4 I/O board with cable

5 Heat sink

6 Fan

7 battery pack

8 Speakers

9 Lower case

10 Wi-Fi card mylar

11 Wi-Fi card

12 2242 Solid-state drive (SSD)

13 Solid-state drive (SSD) bracket Note: The SSD bracket is used to lock the screw for the 2242 SSD.

14 2242 Solid-state drive (SSD) thermalpad

15 2280 Solid-state drive (SSD)

16 Solid-state drive (SSD) mylar

17 2280 Solid-state drive (SSD) thermalpad

18 System board

a Power cord

b ac power adapter

c Screw kit

Chapter 3. Identifying FRUs (CRUs) 25

Figure 2. 14-inch models - LCD module - exploded view

Table 6. FRU categories for the LCD module

No. FRU (CRU) category

1 Hinge cover

2 Hinge cover frame

3 LCD bezel

26 Hardware Maintenance Manual

Table 6. FRU categories for the LCD module (continued)

4 Hinges

5 LCD panel

6 Removable tape

7 Microphone rubbers

8 Camera board

9 EDP cable

10 LCD cover

Chapter 3. Identifying FRUs (CRUs) 27

Figure 3. 15-inch models - Exploded view

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Table 7. FRU (CRU) categories

No. FRU (CRU) category

1 LCD module Note: The LCD module as a whole is not an FRU, it contains FRUs as its components.

2 Upper case

3 Fingerprint board

4 Fingerprint board cable

5 I/O board

6 I/O board cable

7 Hard disk drive (HDD) cable

8 Hard disk drive (HDD)

9 Hard disk drive (HDD) bracket

10 CMOS battery

11 Battery pack

12 Lower case

13 Solid-state drive (SSD) bracket Note: The SSD bracket is used to lock the screw for the 2242 SSD.

14 Solid-state drive (SSD)

15 Solid-state drive (SSD) thermalpad

16 Wi-Fi card

17 Fan

18 Heat sink

19 Speaker

20 System board

a Power cord

b ac power adapter

c Screw kit

Chapter 3. Identifying FRUs (CRUs) 29

Figure 4. 15-inch models - LCD module - exploded view

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Table 8. FRU categories for the LCD module

No. FRU (CRU) category

1 LCD bezel

2 Strip cover

3 Hinges

4 LCD panel

5 Removable tape

6 Microphone rubbers

7 Camera board

8 EDP cable

9 LCD cover

Chapter 3. Identifying FRUs (CRUs) 31

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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 9. 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 33

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, 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 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).

Removal procedure for 14-inch models

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. Loosen three screws and then remove four screws.

Figure 5. Loosen three screws and remove four screws

34 Hardware Maintenance Manual

Screw specifications Number of screws

M2 x L3.5 4

Step 3. Pry up the latches and then remove the lower case.

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 Make sure the following FRU (or CRU) has been removed.

Remove the lower case on page 34

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, release the speaker cable from the cable guide and then remove the battery pack.

Figure 7. Remove two screws and remove the battery pack

Chapter 4. Removing a FRU or CRU 35

Screw specifications Number of screws

M2 x L3 2

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Battery pack

Remove the solid-state drive (SSD) module Make sure the following FRU (or CRU) has been removed.

Remove the lower case on page 34

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 SSD by pulling it away from the slot.

Figure 8. Remove the SSD

Screw specifications Number of screws

M2 x L3 1

Step 3. Peel off the SSD mylar.

Figure 9. Peel off the SSD mylar

Step 4. Remove one screw and then remove the SSD and SSD bracket.

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Figure 10. Remove the SSD and SSD bracket

Screw specifications Number of screws

M2 x L2 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) mylar

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 34

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 Wi-Fi card mylar.

Figure 11. Remove the Wi-Fi card mylar

Step 3. 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.

Chapter 4. Removing a FRU or CRU 37

Figure 12. Remove the Wi-Fi card

Screw specifications Number of screws

M2 x L3 1

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 mylar

Remove the heat sink Make sure the following FRU (or CRU) has been removed.

Remove the lower case on page 34

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 heat sink.

Figure 13. Remove the heat sink

Screw specifications Number of screws

M2 x L3 3

38 Hardware Maintenance Manual

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Heat sink

Remove the fan Make sure the following FRU (or CRU) has been removed.

Remove the lower case on page 34

Remove the battery pack on page 35

Step 1. Remove the I/O board cable.

Figure 14. Remove the I/O board cable

Step 2. Disconnect the fan cable from the system board and release the antenna cables from the cable guide.

Figure 15. Disconnect the fan cable from the system board

Step 3. Remove two screws and then remove the fan.

Chapter 4. Removing a FRU or CRU 39

Figure 16. Remove the fan

Screw specifications Number of screws

M2 x L3 2

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Fan

Remove the speakers Make sure the following FRU (CRU) has been removed.

Remove the lower case on page 34

Remove the battery pack on page 35

Step 1. Disconnect the speaker cable from the system board and then remove the speakers.

Figure 17. Remove the speakers

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Speakers

Remove the I/O board Make sure the following FRUs (or CRUs) have been removed.

40 Hardware Maintenance Manual

Remove the lower case on page 34

Remove the battery pack on page 35

Remove the fan on page 39

Step 1. Remove two screws and then open the hinge.

Figure 18. Remove two screws and then open the hinge

Screw specifications Number of screws

M2.5 x L5.5 2

Step 2. Remove one screw and then remove the I/O board.

Figure 19. Remove the I/O board

Screw specifications Number of screws

M2 x L3 1

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Chapter 4. Removing a FRU or CRU 41

I/O board

Remove the fingerprint board with cable Make sure the following FRUs (or CRUs) have been removed.

Remove the lower case on page 34

Remove the battery pack on page 35

Remove the fan on page 39

Remove the I/O board on page 40

Step 1. Peel off the tape and then disconnect the fingerprint board cable from the system board.

Figure 20. Disconnect the fingerprint board cable

Step 2. Remove two screws and then remove the fingerprint board with cable.

Figure 21. Remove the fingerprint board with cable

Screw specifications Number of screws

M1.6 x L2.5 2

42 Hardware Maintenance Manual

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Fingerprint board with cable

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 34

Remove the battery pack on page 35

Remove the solid-state drive (SSD) module on page 36

Remove the Wi-Fi card on page 37

Remove the heat sink on page 38

Remove the fan on page 39

Step 1. Remove two screws and then open the hinge.

Figure 22. Open the hinge

Screw specifications Number of screws

M2.5 x L5.5 2

Step 2. Disconnect cables connected to the system board.

Chapter 4. Removing a FRU or CRU 43

Figure 23. Disconnect cables connected to the system board

Step 3. Remove four screws and then remove the system board.

Figure 24. Remove the system board

Screw specifications Number of screws

M2 x L3 3

M2 x L5.5 1

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

System board

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.

44 Hardware Maintenance Manual

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.

Remove the LCD module Make sure the following FRU (CRU) has been removed.

Remove the lower case on page 34

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 and then disconnect the EDP cable from the system board.

Figure 25. Disconnect the antenna cables and EDP cable

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 four screws and then remove the LCD module.

Figure 26. Remove the LCD module

Chapter 4. Removing a FRU or CRU 45

Screw specifications Number of screws

M2.5 x L5.5 4

Remove the upper case Make sure the following FRUs (CRUs) have been removed.

Remove the lower case on page 34

Remove the battery pack on page 35

Remove the solid-state drive (SSD) module on page 36

Remove the Wi-Fi card on page 37

Remove the heat sink on page 38

Remove the fan on page 39

Remove the speakers on page 40

Remove the I/O board on page 40

Remove the fingerprint board with cable on page 42

Remove the system board and the I/O board cable on page 43

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 module The LCD module as a whole is not an FRU. Instead, it contains FRUs as its components. Before disassembling the LCD module, make sure it has been detached from the upper case.

Remove the hinge cover Make sure the following FRU (or CRU) has been removed.

Remove the LCD module on page 45

Step 1. Remove the hinge cover.

Figure 27. Remove the hinge cover

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

46 Hardware Maintenance Manual

Hinge cover

Remove the LCD bezel and hinge cover frame Make sure the following FRUs (or CRUs) have been removed.

Remove the LCD module on page 45

Remove the hinge cover on page 46

Step 1. Remove three screws and then remove the LCD bezel.

Figure 28. Remove the LCD bezel

Screw specifications Number of screws

M1.6 x L4.5 3

Step 2. Remove the hinge cover frame.

Figure 29. Remove the hinge cover frame

Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:

LCD bezel

Hinge cover frame

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 46

Chapter 4. Removing a FRU or CRU 47

Remove the LCD bezel and hinge cover frame on page 47

Step 1. Remove six screws and then remove the hinges.

Figure 30. Remove the hinges

Screw specifications Number of screws

M2 x L2 6

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Hinges

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 46

Remove the LCD bezel and hinge cover frame on page 47

Remove the Hinges on page 47

Step 1. Remove the two pieces of removable tape with tweezers.

Note: The removable tape is not reusable. Replace it when replacing related FRUs.

48 Hardware Maintenance Manual

Figure 31. Remove the two pieces of removable tape

Step 2. Lift the LCD panel carefully and then disconnect the EDP cable from the LCD panel.

Figure 32. 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

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 46

Remove the LCD bezel and hinge cover frame on page 47

Remove the Hinges on page 47

Remove the LCD panel on page 48

Step 1. Disconnect the EDP cable from the camera board and then remove the EDP cable.

Chapter 4. Removing a FRU or CRU 49

Figure 33. Remove the EDP cable

Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:

EDP cable

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 46

Remove the LCD bezel and hinge cover frame on page 47

Remove the Hinges on page 47

Remove the LCD panel on page 48

Step 1. Remove the microphone rubbers.

Figure 34. 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 board Make sure the following FRUs (CRUs) have been removed.

Remove the LCD module on page 45

50 Hardware Maintenance Manual

Remove the hinge cover on page 46

Remove the LCD bezel and hinge cover frame on page 47

Remove the Hinges on page 47

Remove the LCD panel on page 48

Remove the microphone rubbers on page 50

Step 1. Disconnect the EDP cable from the camera board and then remove the camera board.

Figure 35. Remove the camera board

Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:

Camera board

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 46

Remove the LCD bezel and hinge cover frame on page 47

Remove the Hinges on page 47

Remove the LCD panel on page 48

Remove the microphone rubbers on page 50

Remove the EDP cable on page 49

Remove the camera board on page 50

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

LCD cover

Removal procedure for 15-inch models

Remove the lower case Make sure the computer has been shut down before servicing the computer.

Chapter 4. Removing a FRU or CRU 51

Step 1. Place the computer upside down on a flat surface.

Step 2. Remove nine screws.

Figure 36. Remove nine screws

Screw specifications Number of screws

M2 x L9 3

M2 x L3 6

Step 3. Pry up the latches and then remove the lower case.

Figure 37. 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 Make sure the following FRU (or CRU) has been removed.

Remove the lower case on page 51

52 Hardware Maintenance Manual

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 battery pack.

Figure 38. Remove four screws and remove the battery pack

Screw specifications Number of screws

M2 x L5 4

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Battery pack

Remove the solid-state drive (SSD) module Make sure the following FRU (or CRU) has been removed.

Remove the lower case on page 51

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 thermalpad.

Figure 39. Remove the SSD thermalpad

Chapter 4. Removing a FRU or CRU 53

Step 3. Remove one screw and then remove the SSD by pulling it away from the slot.

Figure 40. Remove the SSD

Screw specifications Number of screws

M2 x L3 1

Step 4. Remove one screw and then remove the SSD and SSD bracket.

Figure 41. Remove the SSD and SSD bracket

Screw specifications Number of screws

M2 x L2.5 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) bracket

Solid-state drive (SSD) thermalpad

Remove the hard disk drive (HDD) module Make sure the following FRU (or CRU) has been removed.

Remove the lower case on page 51

Remove the battery pack on page 52

54 Hardware Maintenance Manual

Step 1. Disconnect the HDD cable from the system board. Remove two screws and then remove the HDD module.

Figure 42. Remove the HDD module

Screw specifications Number of screws

M2 x L5 2

Step 2. Remove the HDD cable.

Figure 43. Remove the HDD cable

Step 3. Remove four screws and then remove the HDD and HDD bracket.

Figure 44. Remove the HDD and HDD bracket

Screw specifications Number of screws

M3 x L3 4

Chapter 4. Removing a FRU or CRU 55

Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:

hard disk drive (HDD)

hard disk drive (HDD) cable

hard disk drive (HDD) bracket

Remove the Wi-Fi card Make sure the following FRU (or CRU) has been removed.

Remove the lower case on page 51

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 45. Remove the Wi-Fi card

Screw specifications Number of screws

M2 x L3 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 heat sink Make sure the following FRU (or CRU) has been removed.

Remove the lower case on page 51

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. Loosen five screws and then remove the heat sink.

56 Hardware Maintenance Manual

Figure 46. 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

Remove the fan Make sure the following FRU (or CRU) has been removed.

Remove the lower case on page 51

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 fan cable from the system board and release the antenna cables from the cable guide.

Figure 47. Disconnect the fan cable from the system board

Step 3. Remove three screws and then remove the fan.

Chapter 4. Removing a FRU or CRU 57

Figure 48. Remove the fan

Screw specifications Number of screws

M2 x L3 2

M2 x L5 1

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Fan

Remove the speaker Make sure the following FRU (CRU) has been removed.

Remove the lower case on page 51

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 and then remove the speaker.

Figure 49. Remove the speaker

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

58 Hardware Maintenance Manual

Speaker

Remove the CMOS battery Make sure the following FRU (CRU) has been removed.

Remove the lower case on page 51

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 50. 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

Remove the I/O board and the I/O board cable Make sure the following FRUs (or CRUs) have been removed.

Remove the lower case on page 51

Remove the CMOS battery on page 59

Step 1. Remove two screws and then open the hinge.

Chapter 4. Removing a FRU or CRU 59

Figure 51. Remove two screws and then open the hinge

Screw specifications Number of screws

M2.5 x L5 2

Step 2. Disconnect the I/O board cable from the system board. Remove two screws and then remove the I/ O board with cable.

Figure 52. Remove the I/O board with cable

Screw specifications Number of screws

M2 x L3 2

Step 3. Separate the I/O board cable from the I/O board.

60 Hardware Maintenance Manual

Figure 53. Separate the I/O board cable from the I/O board

Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:

I/O board

I/O board cable

Remove the fingerprint board and fingerprint board cable Make sure the following FRUs (or CRUs) have been removed.

Remove the lower case on page 51

Remove the battery pack on page 52

Remove the hard disk drive (HDD) module on page 54

Remove the CMOS battery on page 59

Remove the I/O board and the I/O board cable on page 59

Step 1. Remove the fingerprint board cable.

Figure 54. Remove the fingerprint board cable

Step 2. Remove the fingerprint board.

Chapter 4. Removing a FRU or CRU 61

Figure 55. Remove the fingerprint board

Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:

Fingerprint board

Fingerprint board cable

Remove the system board Make sure the following FRUs (or CRUs) have been removed.

Remove the lower case on page 51

Remove the battery pack on page 52

Remove the solid-state drive (SSD) module on page 53

Remove the Wi-Fi card on page 56

Remove the heat sink on page 56

Remove the fan on page 57

Step 1. Disconnect cables connected to the system board.

62 Hardware Maintenance Manual

Figure 56. Disconnect cables connected to the system board

Step 2. Remove six screws and then remove the system board.

Figure 57. Remove the system board

Screw specifications Number of screws

M2 x L3 2

M2 x L3.5 4

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

System board

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.

Chapter 4. Removing a FRU or CRU 63

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.

Remove the LCD module Make sure the following FRU (CRU) has been removed.

Remove the lower case on page 51

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 and then disconnect the EDP cable from the system board.

Figure 58. disconnect the antenna cables and EDP cable

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 four screws and then remove the LCD module.

Figure 59. Remove the LCD module

64 Hardware Maintenance Manual

Screw specifications Number of screws

M2.5 x L5 4

Remove the upper case Make sure the following FRUs (CRUs) have been removed.

Remove the lower case on page 51

Remove the battery pack on page 52

Remove the solid-state drive (SSD) module on page 53

Remove the hard disk drive (HDD) module on page 54

Remove the Wi-Fi card on page 56

Remove the heat sink on page 56

Remove the fan on page 57

Remove the speaker on page 58

Remove the CMOS battery on page 59

Remove the I/O board and the I/O board cable on page 59

Remove the fingerprint board and fingerprint board cable on page 61

Remove the system board on page 62

Remove the LCD module on page 64

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Upper case

Disassemble the LCD module The LCD module as a whole is not an FRU. Instead, it contains FRUs as its components. Before disassembling the LCD module, make sure it has been detached from the upper case.

Remove the LCD bezel Make sure the following FRU (or CRU) has been removed.

Remove the LCD module on page 64

Step 1. Remove the LCD bezel.

Chapter 4. Removing a FRU or CRU 65

Figure 60. 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 FRU (or CRU) has been removed.

Remove the LCD module on page 64

Remove the LCD bezel on page 65

Step 1. Remove the strip cover.

Figure 61. Remove the strip cover

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Strip cover

Remove the Hinges Make sure the following FRUs (CRUs) have been removed.

Remove the LCD module on page 64

Remove the LCD bezel on page 65

Remove the strip cover on page 66

Step 1. Release the cables from the cable guide.

66 Hardware Maintenance Manual

Figure 62. Release the cables

Step 2. Remove six screws and then remove the hinges.

Figure 63. Remove the hinges

Screw specifications Number of screws

M1.98 x L3 6

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

Hinges

Remove the LCD panel Make sure the following FRUs (CRUs) have been removed.

Remove the LCD module on page 64

Remove the LCD bezel on page 65

Remove the strip cover on page 66

Remove the Hinges on page 66

Step 1. Remove the two pieces of removable tape with tweezers.

Note: The removable tape is not reusable. Replace it when replacing related FRUs.

Chapter 4. Removing a FRU or CRU 67

Figure 64. Remove the two pieces of removable tape

Step 2. Lift the LCD panel carefully and then isconnect the EDP cable from the LCD panel.

Figure 65. 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

Removable tape

Remove the microphone rubbers Make sure the following FRUs (CRUs) have been removed.

Remove the LCD module on page 64

Remove the LCD bezel on page 65

Remove the strip cover on page 66

Remove the Hinges on page 66

Remove the LCD panel on page 67

Step 1. Remove the microphone rubbers.

68 Hardware Maintenance Manual

Figure 66. 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 EDP cable Make sure the following FRUs (CRUs) have been removed.

Remove the LCD module on page 64

Remove the LCD bezel on page 65

Remove the strip cover on page 66

Remove the Hinges on page 66

Remove the LCD panel on page 67

Step 1. Disconnect the EDP cable from the camera board and then remove the EDP cable.

Figure 67. Remove the EDP cable

Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:

EDP cable

Removable tape

Remove the camera board Make sure the following FRUs (CRUs) have been removed.

Chapter 4. Removing a FRU or CRU 69

Remove the LCD module on page 64

Remove the LCD bezel on page 65

Remove the strip cover on page 66

Remove the Hinges on page 66

Remove the LCD panel on page 67

Remove the microphone rubbers on page 68

Step 1. Disconnect the EDP cable from the camera board and then remove the camera board.

Figure 68. Remove the camera board

Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers of the following replacement parts:

Camera board

Removable tape

Remove the LCD cover Make sure the following FRUs (CRUs) have been removed.

Remove the LCD module on page 64

Remove the LCD bezel on page 65

Remove the strip cover on page 66

Remove the Hinges on page 66

Remove the LCD panel on page 67

Remove the microphone rubbers on page 68

Remove the EDP cable on page 69

Remove the camera board on page 69

Go to https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement part:

LCD cover

70 Hardware Maintenance Manual

Appendix A. Label locations

IdeaPad 5 14IAL7 and IdeaPad 5 14ABA7

Figure 69. 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 10. All base cover labels

Label Label name Applied country/region Label dimensions

a GML label 16.077 mm x 22.501 mm

b Country label Argentina 68 mm x 6 mm

c Belarus 40 mm x 8 mm

d TW label 70 mm x 10 mm

e Adapter label 65 mm x 20 mm

f Indonesia rating label 26 mm x 10 mm

g KR KCC label 50 mm x 43 mm

h WL/BT label Brazil 40 mm x 8 mm

Israel/US/CA/TW 30 mm x 30 mm

South Africa 70 mm x 10 mm

Malaysia/Indonesia 65 mm x 20 mm

I Country label Japan 35 mm x 10 mm

Copyright Lenovo 2022 71

Table 10. All base cover labels (continued)

j VietNam Energy Label 10 mm x 9 mm

k India BIS Label 30 mm x 22 mm

IdeaPad 5 15IAL7 and IdeaPad 5 15ABA7

Figure 70. 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 11. All base cover labels

Label Label name Applied country/region Label dimensions

a POD label 100 mm x 30 mm

b OS label 16 mm x 22.5 mm

72 Hardware Maintenance Manual

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