Contents

Lenovo IdeaPad Yoga 6 13ALC7 Laptop Hardware Maintenance Manual PDF

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Summary of Content for Lenovo IdeaPad Yoga 6 13ALC7 Laptop Hardware Maintenance Manual PDF

Yoga 6 (13, 8) Hardware Maintenance Manual

First Edition (November 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. Idetifying FRUs (CRUs) . . 23 Locate FRUs and CRUs . . . . . . . . . . . 23

Chapter 4. Removing a FRU or CRU . . . . . . . . . . . . . . . . . . 27 Service tools . . . . . . . . . . . . . . . . 27 General guidelines. . . . . . . . . . . . . . 27 Remove the lower case . . . . . . . . . . . . 28 Remove the battery pack . . . . . . . . . . . 29 Remove the solid-state drive and bracket. . . . . 29

Remove the Wi-Fi card . . . . . . . . . . . . 31 Remove the heat sink . . . . . . . . . . . . 32 Remove the fan . . . . . . . . . . . . . . . 33 Remove the USB bracket . . . . . . . . . . . 34 Remove the power board and power board cable . . . . . . . . . . . . . . . . . . . 35 Remove the speakers . . . . . . . . . . . . 37 Remove the touchpad with cable . . . . . . . . 37 Remove the fingerprint reader board bracket and fingerprint reader board with cable . . . . . . . 39 Remove the system board. . . . . . . . . . . 40

Use a Golden Key U1 tool to flash-write key id information . . . . . . . . . . . . . . . 42

Remove the upper case (with keyboard) . . . . . 42 Remove the strip cover . . . . . . . . . . . . 44 Remove the LCD panel . . . . . . . . . . . . 45 Remove the hinges and hinge rubbers . . . . . . 47 Remove the EDP cable . . . . . . . . . . . . 48 Remove the microphone rubbers . . . . . . . . 49 Remove the camera and microphone module . . . 50 Remove the sensor board . . . . . . . . . . . 51 Remove the LCD cover . . . . . . . . . . . . 52 Trademarks . . . . . . . . . . . . . . . . . liii

Copyright Lenovo 2022 i

ii Yoga 6 (13, 8) Hardware Maintenance Manual

About this manual

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

Machine Machine type (MT)

Yoga 6 13ABR8 83B2

Yoga 6 13ABR8 1

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 Yoga 6 (13, 8) 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

8 Yoga 6 (13, 8) Hardware Maintenance Manual

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 a FRU only with another FRU of the correct model. When you replace a FRU, make sure that the model of the machine and the FRU part number are correct by referring to the FRU parts list.

A 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 a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU.

Be careful not to replace a nondefective FRU.

What to do first When you return a FRU, you must include the following information in the parts exchange form or parts return form that you attach to it:

1. Name and phone number of service technician 2. Date of service

3. Date on which the machine failed 4. Date of purchase 5. Failure symptoms, error codes appearing on the display, and beep symptoms

6. Procedure index and page number in which the failing FRU was detected 7. Failing FRU name and part number 8. Machine type, model number, and serial number 9. Customer's name and address

Note: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer. Following is a list of some common items that are not covered under warranty and some symptoms that might indicate that the system was subjected to stress beyond normal use.

Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following list:

The following are not covered under warranty: LCD panel cracked from the application of excessive force or from being dropped Scratched (cosmetic) parts Distortion, deformation, or discoloration of the cosmetic parts 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 CRU Type

ac power adapter self-service

power cord self-service

Lenovo Digital Pen * self-service

*for selected models

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Chapter 3. Idetifying 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.

Figure 1. Exploded view

Copyright Lenovo 2022 23

Table 1. FRU (CRU) categories

No. FRU (CRU) category

1 LCD module

2 Upper case (with keyboard)

3 Fingerprint reader board bracket

4 Fingerprint reader board with cable

5 Power board

6 Power board cable

7 Wi-Fi card

8 Fan

9 Solid-state drive (SSD) bracket

10 Solid-state drive (SSD)

11 Battery pack

12 Screw kit

13 Lower case

14 USB bracket

15 System board

16 Heat sink

17 Speakers

18 Touchpad with cable

19 Keyboard connector mylar

a ac power adapter

b Power cord

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Figure 2. LCD Exploded view

Table 2. FRU (CRU) categories

No. FRU (CRU) category

1 LCD cover

2 Hinges

3 LCD panel

4 Camera and microphone module

5 Microphone rubbers

6 Strip cover

7 Sensor board

8 Hinge rubbers

9 EDP cable

10 Removable tapes

Chapter 3. Idetifying FRUs (CRUs) 25

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Chapter 4. Removing a FRU or CRU

Service tools The following table lists tools for servicing Lenovo computers. Tools with a cross mark are needed for serving the product models as described by this publication. Prepare them before you service the product.

Table 3. Service tools

Service tool and consumable 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 X

Acetate tape X

Polyamide tape X

Mylar tape X

Electrical tape

Double-sided tape

Conductive tape X

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 a 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 27

3. Follow the correct sequence in the steps for removing a FRU, as shown in the illustrations by the numbers in square callouts.

4. When removing a FRU, move it in the direction as shown by the arrow in the illustration.

5. To install a new FRU in place, perform the removal procedure in reverse and follow any notes that pertain to replacement.

6. When replacing a FRU, carefully retain and reuse all screws.

7. When replacing the base cover, reapply all labels that come with the replacement base cover. If some original labels are not included with the replacement base cover, peal them off from the original base cover and paste them on the replacement base cover.

DANGER

Before removing any FRU or CRU, shut down the computer and unplug all power cords from electrical outlets.

Attention: After replacing a FRU, do not turn on the computer until you have ensured that all screws, springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.

Attention: The system board is sensitive to and can be damaged by ESD. Before touching it, establish personal grounding by touching a ground point with one hand or by using an ESD strap (P/N 6405959).

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 six screws and then remove the lower case.

Figure 3. Remove six screws and the lower case

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Screw specifications Number of screws

M2 L4 6

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

Lower case

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

Remove the lower case on page 28

Step 1. Disconnect the battery pack cable from the system board.

Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Step 2. Remove three screws and then remove the battery pack.

Figure 4. Remove three screws and the battery pack

Screw specifications Number of screws

M2 L3.5 3

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

Battery pack

Remove the solid-state drive and bracket Make sure the following FRUs (or CRUs) have been removed.

Remove the lower case on page 28

Chapter 4. Removing a FRU or CRU 29

Step 1. Disconnect the battery pack cable from the system board. Then, remove one screw and remove the solid-state drive and bracket by pulling them away from the slot.

Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Figure 5. Remove one screw and the solid-state drive and bracket

Screw specifications Number of screws

M2 L2 1

Step 2. Remove one screw and then remove the solid-state drive bracket.

Figure 6. Remove one screw and the solid-state drive bracket

Screw specifications Number of screws

M2 L2 1

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

Solid-state drive

Solid-state drive bracket

Remove the Wi-Fi card Make sure the following FRUs (or CRUs) have been removed.

Remove the lower case on page 28

Step 1. Disconnect the battery pack cable from the system board. Then, peel off the Wi-Fi card mylar.

Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Figure 7. Disconnect the battery pack cable and peel off the Wi-Fi card mylar

Step 2. Disconnect the wireless antennas from the Wi-Fi card. Then, remove one screw and remove the Wi-Fi card.

Chapter 4. Removing a FRU or CRU 31

Figure 8. Disconnect the wireless antennas, remove one screw and the Wi-Fi card

Screw specifications Number of screws

M2 L3.5 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 FRUs (or CRUs) have been removed.

Remove the lower case on page 28

Step 1. Disconnect the battery pack cable from the system board. Then, remove three screws and remove the heat sink.

Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

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Figure 9. Disconnect the battery pack cable, remove three screws and the heat sink

Screw specifications Number of screws

M2 L3.5 3

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

Heat sink

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

Remove the lower case on page 28

Step 1. Disconnect the battery pack cable and fan cable from the system board.

Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Chapter 4. Removing a FRU or CRU 33

Figure 10. Disconnect cables

Step 2. Remove two screws. Then, remove the fan.

Figure 11. Remove two screws and the fan

Screw specifications Number of screws

M2 L3.5 2

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

Fan

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

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Remove the lower case on page 28

Step 1. Disconnect the battery pack cable from the system board. Then, remove two screws and the USB bracket.

Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Figure 12. Disconnect the battery pack cable, remove two screws and the USB bracket

Screw specifications Number of screws

M2 L3.5 2

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

USB bracket

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

Remove the lower case on page 28

Step 1. Disconnect the battery pack cable from the system board. Then, disconnect the power board cable from both the power board and the system board.

Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Chapter 4. Removing a FRU or CRU 35

Figure 13. Disconnect cables

Step 2. Remove one screw and the power board.

Figure 14. Remove one screw and the power board

Screw specifications Number of screws

M2 L3.5 1

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

Power board

Power board cable

36 Yoga 6 (13, 8) Hardware Maintenance Manual

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

Remove the lower case on page 28

Remove the battery pack on page 29

Step 1. Disconnect the speakers cable from the system board. Then, pull out the speakers cable carefully and remove the speakers.

Figure 15. Disconnect speakers cable, pull out the speakers cable and remove speakers

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

Speaker

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

Remove the lower case on page 28

Remove the battery pack on page 29

Step 1. Peel off the keyboard connector mylar. Then, disconnect the touchpad cable from the system board.

Chapter 4. Removing a FRU or CRU 37

Figure 16. Peel off the keyboard connector mylar and disconnect the touchpad cable

Step 2. Remove four screws. Then, remove the touchpad with cable.

Figure 17. Remove four screws and the touchpad with cable

Screw specifications Number of screws

M2 L2 4

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

Touchpad with cable

Keyboard connector mylar

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

Remove the lower case on page 28

Remove the battery pack on page 29

Step 1. Remove one screw and the fingerprint reader board bracket. Then, peel off the keyboard connector mylar.

Figure 18. Remove one screw and the fingerprint reader board bracket, peel off the keyboard connector mylar

Screw specifications Number of screws

M2 L2 1

Step 2. Disconnect the fingerprint reader board cable from the system board. Then, remove the fingerprint reader board with cable.

Chapter 4. Removing a FRU or CRU 39

Figure 19. Remove the fingerprint reader board with cable

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

Fingerprint reader board bracket

Fingerprint reader board with cable

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

Remove the lower case on page 28

Remove the battery pack on page 29

Remove the solid-state drive and bracket on page 29

Remove the Wi-Fi card on page 31

Remove the heat sink on page 32

Remove the fan on page 33

Remove the USB bracket on page 34

Step 1. Peel off the keyboard connector mylar.

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Figure 20. Peel off the keyboard connector mylar

Step 2. Disconnect all the connected cables from the system board.

Figure 21. Disconnect cables

Step 3. Remove two screws. Then, remove the system board.

Chapter 4. Removing a FRU or CRU 41

Figure 22. Remove two screws and the system board

Screw specifications Number of screws

M2 L3.5 2

Go to https://support.lenovo.com/partslookup to look up the Lenovo part numbers 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 upper case (with keyboard) Make sure the following FRUs (CRUs) have been removed.

Remove the lower case on page 28

Step 1. Disconnect the battery pack cable and the EDP cable from the system board.

Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

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Figure 23. Disconnect the battery pack cable and EDP cable

Step 2. Remove six screws. Then, open the hinges for about 90 degree.

Figure 24. Remove six screws and open the hinges

Screw specifications Number of screws

M2 L4.5 6

Step 3. Remove the upper case (with keyboard) from the LCD module.

Chapter 4. Removing a FRU or CRU 43

Figure 25. Remove the upper case (with keyboard)

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

Upper case (with keyboard)

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

Remove the lower case on page 28

Remove the upper case (with keyboard) on page 42

Step 1. Pry up the strip cover from the indicated location. Then, remove the strip cover.

Figure 26. Remove the strip cover

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Note: The strip cover is fragile and easily-bent. Replace the strip cover after removal.

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

Strip cover

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

Remove the lower case on page 28

Remove the upper case (with keyboard) on page 42

Remove the strip cover on page 44

Step 1. Remove the acetate tape.

Figure 27. Remove the acetate tape

Step 2. Disconnect sensor board cable and remove four screws. Pull out the removable tapes. Then, lift the LCD panel.

Chapter 4. Removing a FRU or CRU 45

Figure 28. Disconnect sensor board cable, remove four screws, pull out the removable tapes and lift the LCD panel

Screw specifications Number of screws

M1.6 L3 4

Step 3. Disconnect the EDP cable from the LCD panel and remove the LCD panel.

Figure 29. Disconnect the EDP cable and 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

46 Yoga 6 (13, 8) Hardware Maintenance Manual

Remove the hinges and hinge rubbers Make sure the following FRUs (or CRUs) have been removed.

Remove the lower case on page 28

Remove the upper case (with keyboard) on page 42

Remove the strip cover on page 44

Remove the LCD panel on page 45

Step 1. Pull out the EDP cable to remove the left hinge rubber.

Figure 30. Pull out the EDP cable to remove the left hinge rubber

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

Figure 31. Remove six screws and hinges

Chapter 4. Removing a FRU or CRU 47

Screw specifications Number of screws

M2 L2 6

Step 3. Remove the right hinge rubber.

Figure 32. Remove the right hinge rubber

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

Hinge

Hinge rubber

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

Remove the lower case on page 28

Remove the upper case (with keyboard) on page 42

Remove the strip cover on page 44

Remove the LCD panel on page 45

Step 1. Remove the EDP cable from the LCD cover.

48 Yoga 6 (13, 8) Hardware Maintenance Manual

Figure 33. Remove the EDP cable

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

EDP cable

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

Remove the lower case on page 28

Remove the upper case (with keyboard) on page 42

Remove the strip cover on page 44

Remove the LCD panel on page 45

Step 1. Remove the microphone rubbers from the camera and microphone module.

Chapter 4. Removing a FRU or CRU 49

Figure 34. Remove the microphone rubbers

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

Microphone rubber

Remove the camera and microphone module Make sure the following FRUs (CRUs) have been removed.

Remove the lower case on page 28

Remove the upper case (with keyboard) on page 42

Remove the strip cover on page 44

Remove the LCD panel on page 45

Step 1. Disconnect the camera and microphone module connector and remove the camera and microphone module.

50 Yoga 6 (13, 8) Hardware Maintenance Manual

Figure 35. Disconnect the camera and microphone module connector and remove the camera and microphone module

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

Camera and microphone module

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

Remove the lower case on page 28

Remove the upper case (with keyboard) on page 42

Remove the strip cover on page 44

Remove the LCD panel on page 45

Step 1. Disconnect the EDP cable and camera cable from the sensor board and remove the sensor board from the LCD cover.

Chapter 4. Removing a FRU or CRU 51

Figure 36. Disconnect the EDP cable and camera cable and remove the sensor board

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

Sensor board

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

Remove the lower case on page 28

Remove the upper case (with keyboard) on page 42

Remove the strip cover on page 44

Remove the LCD panel on page 45

Remove the hinges and hinge rubbers on page 47

Remove the EDP cable on page 48

Remove the microphone rubbers on page 49

Remove the camera and microphone module on page 50

Remove the sensor board on page 51

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

LCD cover

52 Yoga 6 (13, 8) Hardware Maintenance Manual

Trademarks LENOV

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