About this manual
Chapter 1. Safety information
Chapter 2. General checkout
- What to do first
- CRU list
Chapter 3. Identifying FRUs (CRUs)
- Locate FRUs and CRUs
Chapter 4. Removing a FRU or CRU
Appendix A. Label locations
Trademarks

Lenovo Slim 7 User Manual

Displayed below is the user manual for Slim 7 by Lenovo which is a product in the Notebooks category. This manual has pages.

Related Manuals

Lenovo Slim 7 Manual

Hardware Maintenance Manual

Lenovo Legion Slim 7 (15″, 6)

First Edition (April 2021)

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 . . . . . . . . . . . . . . . . . . 29

Service tools . . . . . . . . . . . . . . . . 29

General guidelines. . . . . . . . . . . . . . 29

Remove the lower case . . . . . . . . . . . . 30

Remove the solid-state drive (SSD) module . . . . 31

Remove the battery pack . . . . . . . . . . . 33

Remove the Wi-Fi card . . . . . . . . . . . . 33

Remove the solid-state drive (SSD) mylar . . . . . 34

Remove the DC-in bracket . . . . . . . . . . 35

Remove the memory module mylar . . . . . . . 35

Remove the memory module . . . . . . . . . 36

Remove the heat sink . . . . . . . . . . . . 37

Remove the fans . . . . . . . . . . . . . . 38

Remove the solid-state drive (SSD) bracket . . . . 38

Remove the USB board module . . . . . . . . 39

Remove the CMOS battery . . . . . . . . . . 41

Remove the speakers . . . . . . . . . . . . 41

Remove the touchpad cable . . . . . . . . . . 42

Remove the system board. . . . . . . . . . . 43

Use a Golden Key U1 tool to flash-write key id

information . . . . . . . . . . . . . . . 44

Remove the fingerprint board cable . . . . . . . 44

Remove the fingerprint board and Cu Foil mylar . . 45

Remove the strip cover . . . . . . . . . . . . 46

Remove the LCD module . . . . . . . . . . . 47

Remove the upper case (with keyboard and

touchpad) . . . . . . . . . . . . . . . . . 49

Disassemble the LCD module . . . . . . . . . 50

Remove the LCD bezel . . . . . . . . . . 50

Remove the hinge cover. . . . . . . . . . 50

Remove the LCD panel . . . . . . . . . . 51

Remove the camera privacy shutter . . . . . 52

Remove the camera module . . . . . . . . 53

Remove the microphone rubbers . . . . . . 54

Remove the microphone board and the EDP

cable . . . . . . . . . . . . . . . . . 54

Remove the LCD cover . . . . . . . . . . 55

Appendix A. Label locations. . . . . . 57

Trademarks . . . . . . . . . . . . . . . . . lix

ii Hardware Maintenance Manual

About this manual

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

Machine Machine type (MT)

Legion S7 15ACH6 82K8

Lenovo Legion S7 15ACH6 82K8

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.

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

– 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

2Hardware Maintenance Manual

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

4Hardware Maintenance Manual

DANGER

Chapter 1.Safety information 5

6Hardware Maintenance Manual

PERIGO

Chapter 1.Safety information 7

PERIGO

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DANGER

Chapter 1.Safety information 9

DANGER

VORSICHT

10 Hardware Maintenance Manual

VORSICHT

Chapter 1.Safety information 11

VORSICHT

12 Hardware Maintenance Manual

Chapter 1.Safety information 13

14 Hardware Maintenance Manual

Chapter 1.Safety information 15

16 Hardware Maintenance Manual

Chapter 1.Safety information 17

18 Hardware Maintenance Manual

Chapter 1.Safety information 19

20 Hardware Maintenance Manual

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

• 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: Legion S7 15ACH6 (MT: 82K8)

CRU Type

ac power adapter self-service

Power cord self-service

Table 2. Model: Lenovo Legion S7 15ACH6 (MT: 82K8)

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 customer’s computer.

Figure 1. Legion S7 15ACH6 and Lenovo Legion S7 15ACH6 exploded view

24 Hardware Maintenance Manual

Table 3. FRU (CRU) categories

No. FRU (CRU) category

1LCD module

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

2Strip cover (strip cover pet and strip cover L/M/R)

3Upper case (with keyboard and touchpad)

4Fingerprint board Cu Foil mylar

5Fingerprint board

6Fingerprint board cable

7Thermal pad

8DC-in bracket

9System board

10 Fans

11 Solid-state drive (SSD) Cu Foil mylar

12 Solid-state drive (SSD)

13 Solid-state drive (SSD) holder

14 Solid-state drive (SSD) thermalpad

15 Speakers

16 Battery pack

17 Lower case

18 Wi-Fi card

19 CMOS battery

20 Memory module shielding

21 Memory module

22 Memory module mylar

23 Solid-state drive (SSD) mylar

24 Heat sink

25 USB board cable

26 USB board

27 Solid-state drive (SSD) bracket

28 Touchpad cable

aPower cord

bac power adapter

cScrew kit

Chapter 3.Identifying FRUs (CRUs) 25

Figure 2. Legion S7 15ACH6 and Lenovo Legion S7 15ACH6 LCD module- exploded view

26 Hardware Maintenance Manual

Table 4. FRU categories for the LCD module

No. FRU (CRU) category

1LCD bezel *

2LCD panel

3Camera

4camera privacy shutter

5Removable tape *

6Microphone rubbers *

7Microphone board

8LCD cover

9EDP cable

10 Camera cable

11 Hinge cover

* The FRU is not reusable. Replace it when replacing related FRUs.

Chapter 3.Identifying FRUs (CRUs) 27

28 Hardware Maintenance Manual

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 5. Service tools

Service tool and consumable Model applicability

Screw driver (Phillips head) (PH1/PH0) X

Screw driver (Torx head) (T5)

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.

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 eight screws.

Figure 3. Remove eight screws

Screw specifications Number of screws

M2 x L6 8

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

30 Hardware Maintenance Manual

Figure 4. 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 solid-state drive (SSD) module

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

“Remove the lower case” on page 30

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.

Figure 5. Disconnect the battery pack cable from the system board

Step 2. Remove two screws and then remove the SSD module by pulling it away from the slot.

Chapter 4.Removing a FRU or CRU 31

Figure 6. Remove two screws and remove the SSD module

Screw specifications Number of screws

M2 x L3.5 2

Step 3. Remove the SSD holder.

Figure 7. Remove the SSD holder

Step 4. Peel off the SSD Cu foil mylar.

Figure 8. Peel off the SSD Cu foil mylar

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

replacement parts:

SSD

SSD holder

Cu foil mylar

32 Hardware Maintenance Manual

Remove the battery pack

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

“Remove the lower case” on page 30

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 SSD.

Note: For details, see “Remove the solid-state drive (SSD) module” on page 31.

Step 3. Remove four screws and then remove the battery pack.

Figure 9. Remove four screws and remove the battery pack

Screw specifications Number of screws

M2 x L3.5 4

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

part:

Battery pack

Remove the Wi-Fi card

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

“Remove the lower case” on page 30

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.

Chapter 4.Removing a FRU or CRU 33

Figure 10. Remove the Wi-Fi card

Screw specifications Number of screws

M2 x L3.5 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 solid-state drive (SSD) mylar

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

“Remove the lower case” on page 30

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 SSD.

Note: For details, see “Remove the solid-state drive (SSD) module” on page 31

Step 3. Peel off the SSD mylar.

Figure 11. Peel off the SSD mylar

34 Hardware Maintenance Manual

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

part:

SSD mylar

Remove the DC-in bracket

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

“Remove the lower case” on page 30

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 DC-in bracket.

Figure 12. Remove one screw and then remove the DC-in bracket

Screw specifications Number of screws

M2 x L3.5 1

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

part:

DC-in bracket

Remove the memory module mylar

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

“Remove the lower case” on page 30

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 memory module mylar.

Chapter 4.Removing a FRU or CRU 35

Figure 13. Peel off the memory module mylar

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

part:

Memory module mylar

Remove the memory module

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

“Remove the lower case” on page 30

“Remove the memory module mylar” on page 35

Step 1. Remove the memory module shielding.

Figure 14. Remove the memory module shielding

Step 2. Release the two latches on both edges of the socket at the same time. Then, remove the memory

module.

36 Hardware Maintenance Manual

Figure 15. Remove the memory module

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

replacement parts:

Memory module

Memory module shielding

Remove the heat sink

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

“Remove the lower case” on page 30

“Remove the memory module mylar” on page 35

Step 1. Loosen six screws and then remove the heat sink.

Figure 16. Loosen six 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

Chapter 4.Removing a FRU or CRU 37

Remove the fans

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

“Remove the lower case” on page 30

“Remove the memory module mylar” on page 35

“Remove the heat sink” on page 37

Step 1. Disconnect the fan cables from the system board. Remove four screws and then remove the fans.

Figure 17. Remove four screws and remove the fans

Screw specifications Number of screws

M2 x L3.5 4

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

part:

Fans

Remove the solid-state drive (SSD) bracket

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

“Remove the lower case” on page 30

“Remove the memory module mylar” on page 35

“Remove the heat sink” on page 37

Step 1. Remove the right fan and one SSD.

Note: For details, see “Remove the fans” on page 38 and “Remove the solid-state drive (SSD)

module” on page 31.

Step 2. Remove one screw and then remove the SSD bracket.

38 Hardware Maintenance Manual

Figure 18. Remove the SSD bracket

Screw specifications Number of screws

M2 x L3.5 1

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

part:

SSD bracket

Remove the USB board module

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

“Remove the lower case” on page 30

“Remove the solid-state drive (SSD) module” on page 31

“Remove the battery pack” on page 33

“Remove the solid-state drive (SSD) mylar” on page 34

“Remove the memory module mylar” on page 35

“Remove the heat sink” on page 37

“Remove the solid-state drive (SSD) bracket” on page 38

Step 1. Remove the right fan.

Note: For details, see “Remove the fans” on page 38.

Step 2. Disconnect the cable connected to the USB board and disconnect the USB board cable from the

system board.

Chapter 4.Removing a FRU or CRU 39

Figure 19. Disconnect the cable connected to the USB board and disconnect the USB board cabled

Step 3. Remove one screw and then remove the USB board with cable.

Figure 20. Remove one screw and then remove the USB board with cable

Screw specifications Number of screws

M2 x L3.5 1

Step 4. Separate the USB board cable from the USB board.

Figure 21. Separate the USB board cable from the USB board

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

replacement parts:

USB board

USB board cable

40 Hardware Maintenance Manual

Remove the CMOS battery

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

“Remove the lower case” on page 30

“Remove the solid-state drive (SSD) module” on page 31

“Remove the battery pack” on page 33

Step 1. Disconnect the CMOS battery cable from the system board. Peel off the mylar and then remove the

CMOS battery.

Figure 22. Remove the CMOS battery

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

replacement parts:

CMOS battery

Mylar

Remove the speakers

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

“Remove the lower case” on page 30

“Remove the solid-state drive (SSD) module” on page 31

“Remove the battery pack” on page 33

“Remove the solid-state drive (SSD) mylar” on page 34

Step 1. Detach the speaker cable connectors. Remove two screws and then remove the speakers.

Chapter 4.Removing a FRU or CRU 41

Figure 23. Remove the speakers

Screw specifications Number of screws

M1.6 x L2 2

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

part:

Speakers

Remove the touchpad cable

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

“Remove the lower case” on page 30

“Remove the battery pack” on page 33

Step 1. Detach the touchpad cable connectors and then remove the touchpad cable.

Figure 24. 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

42 Hardware Maintenance Manual

Remove the system board

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

“Remove the lower case” on page 30

“Remove the solid-state drive (SSD) module” on page 31

“Remove the battery pack” on page 33

“Remove the Wi-Fi card” on page 33

“Remove the solid-state drive (SSD) mylar” on page 34

“Remove the DC-in bracket” on page 35

“Remove the memory module mylar” on page 35

“Remove the memory module” on page 36

“Remove the heat sink” on page 37

“Remove the fans” on page 38

Step 1. Disconnect cables connected to the system board.

Figure 25. Disconnect cables connected to the system board

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

Chapter 4.Removing a FRU or CRU 43

Figure 26. Remove two screws and then remove the system board

Screw specifications Number of screws

M2 x L3.5 2

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.

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 Goldern Key U1 tool.

Remove the fingerprint board cable

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

“Remove the lower case” on page 30

“Remove the solid-state drive (SSD) module” on page 31

“Remove the battery pack” on page 33

“Remove the Wi-Fi card” on page 33

“Remove the solid-state drive (SSD) mylar” on page 34

“Remove the DC-in bracket” on page 35

“Remove the memory module mylar” on page 35

“Remove the memory module” on page 36

“Remove the heat sink” on page 37

“Remove the fans” on page 38

“Remove the system board” on page 43

Step 1. Disconnect the fingerprint board cable from the fingerprint board and then remove the fingerprint

board cable.

44 Hardware Maintenance Manual

Figure 27. Remove the fingerprint board cable

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

part:

Fingerprint board cable

Remove the fingerprint board and Cu Foil mylar

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

“Remove the lower case” on page 30

“Remove the solid-state drive (SSD) module” on page 31

“Remove the battery pack” on page 33

“Remove the Wi-Fi card” on page 33

“Remove the solid-state drive (SSD) mylar” on page 34

“Remove the DC-in bracket” on page 35

“Remove the memory module mylar” on page 35

“Remove the memory module” on page 36

“Remove the heat sink” on page 37

“Remove the fans” on page 38

“Remove the system board” on page 43

Step 1. Peel off the Cu Foil mylar.

Figure 28. Peel off the Cu Foil mylar

Step 2. Remove two screws. Disconnect the fingerprint board cable from the fingerprint board and then

remove the fingerprint board.

Chapter 4.Removing a FRU or CRU 45

Figure 29. Remove the fingerprint board

Screw specifications Number of screws

M1.2 x L3 2

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

replacement parts:

Cu Foil mylar

Fingerprint board

Remove the strip cover

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

“Remove the lower case” on page 30

“Remove the solid-state drive (SSD) module” on page 31

“Remove the battery pack” on page 33

“Remove the Wi-Fi card” on page 33

“Remove the solid-state drive (SSD) mylar” on page 34

“Remove the DC-in bracket” on page 35

“Remove the memory module mylar” on page 35

“Remove the memory module” on page 36

“Remove the heat sink” on page 37

“Remove the fans” on page 38

“Remove the system board” on page 43

Step 1. Remove two screws and open the latches.

46 Hardware Maintenance Manual

Figure 30. Remove two screws and open the latches

Screw specifications Number of screws

M2.5 x L5 2

Step 2. Remove the strip cover.

Figure 31. 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 LCD module

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

“Remove the lower case” on page 30

“Remove the solid-state drive (SSD) module” on page 31

“Remove the battery pack” on page 33

“Remove the Wi-Fi card” on page 33

“Remove the solid-state drive (SSD) mylar” on page 34

“Remove the DC-in bracket” on page 35

“Remove the memory module mylar” on page 35

“Remove the memory module” on page 36

“Remove the heat sink” on page 37

Chapter 4.Removing a FRU or CRU 47

“Remove the fans” on page 38

“Remove the system board” on page 43

“Remove the strip cover” on page 46

Step 1. Remove two screws.

Figure 32. Remove two screws

Screw specifications Number of screws

M2.5 x L5 2

Step 2. Remove two screws and then lift the LCD module.

Figure 33. Remove six screws and then lift the LCD module

Screw specifications Number of screws

M2.5 x L2.3 2

Step 3. Take out the EDP cable and then remove the LCD module.

48 Hardware Maintenance Manual

Figure 34. Take out the EDP cable and then remove the LCD module

Remove the upper case (with keyboard and touchpad)

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

“Remove the lower case” on page 30

“Remove the solid-state drive (SSD) module” on page 31

“Remove the battery pack” on page 33

“Remove the Wi-Fi card” on page 33

“Remove the solid-state drive (SSD) mylar” on page 34

“Remove the DC-in bracket” on page 35

“Remove the memory module mylar” on page 35

“Remove the memory module” on page 36

“Remove the heat sink” on page 37

“Remove the fans” on page 38

“Remove the solid-state drive (SSD) bracket” on page 38

“Remove the USB board module” on page 39

“Remove the CMOS battery” on page 41

“Remove the speakers” on page 41

“Remove the touchpad cable” on page 42

“Remove the system board” on page 43

“Remove the fingerprint board cable” on page 44

“Remove the fingerprint board and Cu Foil mylar” on page 45

“Remove the strip cover” on page 46

“Remove the LCD module” on page 47

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

part:

Upper case (with keyboard and touchpad)

Chapter 4.Removing a FRU or CRU 49

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 unit has been removed.

“Remove the LCD module” on page 47

Step 1. Remove the LCD bezel.

Note: The LCD bezel is not reusable. Replace it when replacing related FRUs.

Figure 35. 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 hinge cover

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

“Remove the LCD module” on page 47

“Remove the LCD bezel” on page 50

Step 1. Remove the hinge cover.

Figure 36. Remove the hinge cover

50 Hardware Maintenance Manual

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

part:

Hinge cover

Remove the LCD panel

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

“Remove the LCD module” on page 47

“Remove the hinge cover” on page 50

“Remove the LCD bezel” on page 50

Step 1. Remove two screws and then remove the hinge caps.

Figure 37. Remove two screws and remove the hinge caps

Screw specifications Number of screws

M2.5 x L2.3 2

Step 2. Remove the three pieces of removable tape with tweezers.

Figure 38. Remove the three pieces of removable tape with tweezers

Chapter 4.Removing a FRU or CRU 51

Step 3. Lift the LCD panel carefully. Peel off the tape and then disconnect the EDP cable from the LCD

panel, remove the LCD panel.

Figure 39. Remove the LCD panel

Note: For LCD panel with the factory color calibration feature, do the following to install new color profiles:

1. Connect your computer to the network and close the X-Rite Color Assistant program.

2. Go to https://support.lenovo.com to download the installation software.

3. Double-click the EXE file. Follow the on-screen instructions to input the display serial number and click

Submit. You can find the display serial number and instructions on a sticker fixed to the front of the new

LCD part. When the new color profiles are installed successfully, a prompted window will be displayed.

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 camera privacy shutter

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

“Remove the LCD module” on page 47

“Remove the hinge cover” on page 50

“Remove the LCD bezel” on page 50

“Remove the LCD panel” on page 51

Step 1. Remove the camera privacy shutter.

52 Hardware Maintenance Manual

Figure 40. Remove the camera privacy shutter

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

part:

Removable tape

Camera privacy shutter

Remove the camera module

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

“Remove the LCD module” on page 47

“Remove the hinge cover” on page 50

“Remove the LCD bezel” on page 50

“Remove the LCD panel” on page 51

“Remove the camera privacy shutter” on page 52

Step 1. Disconnect the camera cable from the microphone board and the camera board. Remove the

camera cable.

Figure 41. Remove the camera cable

Step 2. Remove the camera.

Chapter 4.Removing a FRU or CRU 53

Figure 42. Remove the camera

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

replacement parts:

Camera

Camera cable

Removable tape

Remove the microphone rubbers

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

“Remove the LCD module” on page 47

“Remove the hinge cover” on page 50

“Remove the LCD bezel” on page 50

“Remove the LCD panel” on page 51

Step 1. Remove the microphone rubbers.

Figure 43. Remove the microphone rubbers

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

replacement parts:

Removable tape

Microphone rubbers

Remove the microphone board and the EDP cable

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

“Remove the LCD module” on page 47

54 Hardware Maintenance Manual

“Remove the hinge cover” on page 50

“Remove the LCD bezel” on page 50

“Remove the LCD panel” on page 51

“Remove the microphone rubbers” on page 54

Step 1. Disconnect the camera cable and the LED board cable from the microphone board. Then remove

the microphone board and the EDP cable.

Figure 44. Remove the microphone board and the EDP cable

Step 2. Separate the EDP cable from the microphone board.

Figure 45. Separate the EDP cable from the microphone board

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

replacement parts:

EDP cable

Removable tape

Microphone board

Remove the LCD cover

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

“Remove the LCD module” on page 47

“Remove the LCD bezel” on page 50

“Remove the hinge cover” on page 50

“Remove the LCD panel” on page 51

Chapter 4.Removing a FRU or CRU 55

“Remove the camera privacy shutter” on page 52

“Remove the camera module” on page 53

“Remove the microphone rubbers” on page 54

“Remove the microphone board and the EDP cable” on page 54

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

part:

LCD cover

56 Hardware Maintenance Manual

Appendix A. Label locations

Figure 46. 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 6. All base cover labels

Label Label name Applied country/region Label dimensions

a OS label All 16 mm x 22.5 mm

bAdapter label 170W Argentina 65 mm x 20 mm

cAdapter label 230W 65 mm x 20 mm

dCountry label US/CA/TW/CA_Group 32 mm x 10 mm

eArgentina 68 mm x 6 mm

fSouth Africa 20 mm x 10 mm

gIsrael 32 mm x 10 mm

hBrazil 16.5 mm x 15 mm

IMalaysia 8 mm x 8 mm

jTW vision warning label 70 mm x 10 mm

58 Hardware Maintenance Manual

Trademarks

LENOVO and the LENOVO logo are trademarks of Lenovo.

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Lenovo Slim 7 User Manual

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