IdeaPad Series 1

Hardware Maintenance Manual

First Edition (September 2021)

© Copyright Lenovo 2021.

Contents

About this manual . . . . . . . . . . . . iii Remove the 2280 solid-state drive (for selected
models) . . . . . . . . . . . . . . . . . . 34
Chapter 1. Safety information . . . . . . 1 Remove the speakers . . . . . . . . . . . . 35
General safety . . . . . . . . . . . . . . . . 1 Remove the coin-cell battery. . . . . . . . . . 36
Electrical safety . . . . . . . . . . . . . . . . 1 Remove the Wi-Fi card . . . . . . . . . . . . 37
Safety inspection guide . . . . . . . . . . . . . 2 Remove the heat sink . . . . . . . . . . . . 38
Handling devices that are sensitive to electrostatic Remove the fan . . . . . . . . . . . . . . . 39
discharge . . . . . . . . . . . . . . . . . . 3 Remove the DC-in cable . . . . . . . . . . . 40
Grounding requirements . . . . . . . . . . . . 4 Remove the I/O board . . . . . . . . . . . . 42
Safety notices (multilingual translations) . . . . . . 4 Remove the I/O board (without fingerprint
board) . . . . . . . . . . . . . . . . . . 43
Chapter 2. General checkout . . . . . 21 Remove the fingerprint reader (for selected
What to do first . . . . . . . . . . . . . . . 21 models) . . . . . . . . . . . . . . . . . . 45
CRU list . . . . . . . . . . . . . . . . . . 22 Remove the system board. . . . . . . . . . . 46
Write key product information to a
Chapter 3. Identifying FRUs . . . . . . 23 replacement system board. . . . . . . . . 47
Locate FRUs and CRUs . . . . . . . . . . . 23 Remove the upper case. . . . . . . . . . . . 48
Remove the LCD bezel . . . . . . . . . . . . 49
Chapter 4. Removing a FRU or Remove the hinge cover . . . . . . . . . . . 50
CRU . . . . . . . . . . . . . . . . . . 27 Remove the LCD module . . . . . . . . . . . 50
Service tools . . . . . . . . . . . . . . . . 27 Remove the hinges . . . . . . . . . . . . . 51
General guidelines . . . . . . . . . . . . . . 27 Remove the microphone rubbers . . . . . . . . 53
Remove the lower case . . . . . . . . . . . . 28 Remove the EDP cable . . . . . . . . . . . . 53
Remove the battery pack . . . . . . . . . . . 29 Remove the camera module . . . . . . . . . . 54
Remove the memory . . . . . . . . . . . . . 32 Trademarks . . . . . . . . . . . . . . . . lvii
Remove the 2242 solid-state drive (for selected
models) . . . . . . . . . . . . . . . . . . 33

© Copyright Lenovo 2021 i

ii IdeaPad Series 1 Hardware Maintenance Manual
About this manual
This manual contains service and reference information for the following Lenovo products.

Model name Machine type (MT)

IdeaPad 1 14ADA7
82R0
IdeaPad 1 14ADA7 Ua
IdeaPad 1 14ALC7
IdeaPad 1 14ALC7 1
82R3
IdeaPad 1 14ALC7 2
IdeaPad 14 ALC7
IdeaPad 1 14AMN7
IdeaPad 1 14AMN7 Ua
82VF
IdeaPad 1 14AMN7 Ub
IdeaPad 1 14AMN7 Uc
IdeaPad 1 14IAU7
IdeaPad 1 14IAU7 1
82QC
IdeaPad 1 14IAU7 2
IdeaPad 14 IAU7
IdeaPad 1 14IGL7
IdeaPad 1 14IGL7 1 82V6
IdeaPad 1 14IGL7 2
IdeaPad 1 14IJL7
82LV
IdeaPad 1 14IJL7 Ua
IdeaPad 1 15ADA7
82R1
IdeaPad 1 15ADA7 Ua
IdeaPad 1 15ALC7
IdeaPad 1 15ALC7 1
82R4
IdeaPad 1 15ALC7 2
IdeaPad 15 ALC7
IdeaPad 1 15AMN7
IdeaPad 1 15AMN7 Ua
82VG
IdeaPad 1 15AMN7 Ub
IdeaPad 1 15AMN7 Uc
IdeaPad 1 15IAU7
IdeaPad 1 15IAU7 1
82QD
IdeaPad 1 15IAU7 2
IdeaPad 15 IAU7

© Copyright Lenovo 2021 iii

 Model name Machine type (MT)

IdeaPad 1 15IGL7
IdeaPad 1 15IGL7 1 82V7
IdeaPad 1 15IGL7 2
IdeaPad 1 15IJL7
82LX
IdeaPad 1 15IJL7 Ua

Important:
• It is recommended that these products be repaired by trained service technicians. For customers electing
to repair their own Lenovo products, please follow all instructions carefully.
• Before servicing a Lenovo product, be sure to read all the information under Chapter 1 “Safety
information” on page 1.

iv IdeaPad Series 1 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 people are not in a hazardous position.
• Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the
machine.
• Keep your tool case away from walk areas so that other people will not trip over it.
• Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your
sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.
• Insert the ends of your necktie or scarf inside clothing or fasten it with a non-conductive clip, about 8
centimeters (3 inches) from the end.
• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.

Attention: Metal objects are good electrical conductors.

• Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using
solvents, or working in any other conditions that might be hazardous to your eyes.
• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that
is worn or defective.
• Reinstall all covers correctly before returning the machine to the customer.
• Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan
louvers or cover them with labels or stickers.

Electrical safety
Observe the following rules when working on electrical equipment.

Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft
material that does not insulate you when working with live electrical currents.Many customers have, near
their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges.
Do not use this type of mat to protect yourself from electrical shock.
• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical
accident occurs, you can then operate the switch or unplug the power cord quickly.
• Do not work alone under hazardous conditions or near equipment that has hazardous voltages.
• Disconnect all power before:
– Performing a mechanical inspection
– Working near power supplies
– Removing or installing main units

© Copyright Lenovo 2021 1

• 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

2 IdeaPad Series 1 Hardware 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

DANGER

DANGER

4 IdeaPad Series 1 Hardware Maintenance Manual

DANGER

DANGER

DANGER

DANGER

DANGER

Chapter 1. Safety information 5

6 IdeaPad Series 1 Hardware Maintenance Manual
PERIGO

PERIGO

PERIGO

Chapter 1. Safety information 7

PERIGO

PERIGO

PERIGO

PERIGO

PERIGO

8 IdeaPad Series 1 Hardware Maintenance Manual

DANGER

DANGER

DANGER

DANGER

Chapter 1. Safety information 9

DANGER

DANGER

DANGER

DANGER

VORSICHT

10 IdeaPad Series 1 Hardware Maintenance Manual

VORSICHT

VORSICHT

VORSICHT

VORSICHT

Chapter 1. Safety information 11

VORSICHT

VORSICHT

VORSICHT

12 IdeaPad Series 1 Hardware Maintenance Manual

Chapter 1. Safety information 13
14 IdeaPad Series 1 Hardware Maintenance Manual
Chapter 1. Safety information 15
16 IdeaPad Series 1 Hardware Maintenance Manual
Chapter 1. Safety information 17
18 IdeaPad Series 1 Hardware Maintenance Manual
Chapter 1. Safety information 19
20 IdeaPad Series 1 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:
• It is recommended that only certified trained personnel perform service on the computer. For customers
electing to repair their own machines, please follow all instructions carefully.
• Before replacing any FRU, read the entire page on removing and replacing FRUs.
• Be extremely careful during such write operations as copying, saving, or formatting. Drives in the computer
that you are servicing sequence might have been altered. If you select an incorrect drive, data or programs might be
overwritten.
• Replace 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

© Copyright Lenovo 2021 21

• Damage caused by liquid spilled into the system
• Damage caused by the improper insertion of a personal-computer card (PC card) or the installation of an
incompatible card
• Improper disc insertion or use of an external optical drive
• Fuses blown by attachment of a non-supported device
• Forgotten computer password (making the computer unusable)
• Sticky keys caused by spilling a liquid onto the keyboard
• Use of an incorrect ac power adapter on laptop products

The following symptoms might indicate damage caused by non-warranted activities:

• Missing parts might be a symptom of improper service or modification.
• Check for obvious damage to a hard disk drive. If the spindle of a hard disk drive becomes noisy, the hard
disk drive might have been dropped or subject to excessive force.

CRU list
Table 1. Model: 14–inch models (Machine type: 82R0, 82R3, 82QC, 82LV, and 82VF)

CRU Type

ac power adapter self-service

power cord self-service

Table 2. Model: 15–inch models (Machine type: 82R1, 82R4, 82QD, 82LX, and 82VG)

CRU Type

ac power adapter self-service

power cord self-service

22 IdeaPad Series 1 Hardware Maintenance Manual

Chapter 3. Identifying FRUs

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. Exploded view

Table 3. FRU (CRU) categories

No. FRU (CRU) category

1 Upper case
2 Heat sink
3 System fan

4 I/O board
5 Fingerprint reader*

6 Battery pack

© Copyright Lenovo 2021 23

Table 3. FRU (CRU) categories (continued)

7 Lower case
8 Speakers
9 Coin-cell battery

10 System board
11 Wi-Fi card mylar

12 Wi-Fi card
13 Memory

14 2242 solid-state drive*

15 2242 solid-state drive bracket*
16 2280 solid-state drive*
17 DC-in cable
18 Screw kit

* For selected models

Figure 2. LCD exploded view

Table 4. FRU (CRU) categories

No. FRU (CRU) category

1 LCD cover
2 LCD bezel

24 IdeaPad Series 1 Hardware Maintenance Manual

Table 4. FRU (CRU) categories (continued)

3 LCD module
4 EDP cable
5 Hinges

6 Hinge cover

7 Microphone rubbers
8 Camera module
9 Removable tapes

Chapter 3. Identifying FRUs 25

26 IdeaPad Series 1 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/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 X

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 a FRU, ensure that you observe the following general guidelines:
1. It is recommended that only certified trained personnel perform service on the computer. For customers
electing to repair their own machines, please follow all instructions carefully.
2. Begin by removing any FRUs that have to be removed before replacing the failing FRU. Any such FRUs
are listed at the beginning of each FRU replacement procedure. Remove them in the order in which they
are listed.

© Copyright Lenovo 2021 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 nine screws for 14–inch models, or remove ten screws for 15–inch models. Then, pry up
the latches and remove the lower case.

Figure 3. Remove nine screws for 14–inch models

28 IdeaPad Series 1 Hardware Maintenance Manual

 Screw specifications Number of screws
M2 x L5.5 9

Figure 4. Remove ten screws for 15–inch models

Screw specifications Number of screws

M2 x L5.5 10

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.

Chapter 4. Removing a FRU or CRU 29

 Figure 5. Disconnect the battery pack cable for 14–inch models

Figure 6. Disconnect the battery pack cable for 15–inch models

Step 2. Remove five screws for 14–inch models or six screws for 15–inch models and then remove the
battery pack.

30 IdeaPad Series 1 Hardware Maintenance Manual

 Figure 7. Remove five screws and the battery pack for 14–inch models

Screw specifications Number of screws

M2 x L4 5

Figure 8. Remove six screws and the battery pack for 15–inch models

Screw specifications Number of screws

M2 x L4 6

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

replacement part:
Battery pack

Chapter 4. Removing a FRU or CRU 31

Remove the memory
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 one screw, and the 2242
solid-state drive bracket.

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

Figure 9. Disconnect the battery pack cable

Step 2. Open the latches and remove the memory.

Figure 10. Remove the memory

32 IdeaPad Series 1 Hardware Maintenance Manual

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

Remove the 2242 solid-state drive (for selected models)

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 tow screw and the 2242
solid-state drive bracket.

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

Figure 11. Disconnect cables and remove screws and 2242 solid-state drive bracket

Screw specifications Number of screws

M2 x L2.5 2

Step 2. Remove the 2242 solid-state drive by pulling it away from the slot.

Chapter 4. Removing a FRU or CRU 33

 Figure 12. Remove the 2242 solid-state drive

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

replacement part:
2242 solid-state drive

Remove the 2280 solid-state drive (for selected models)

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 one screw.

Figure 13. Disconnect the cable of the 2280 solid-state drive

34 IdeaPad Series 1 Hardware Maintenance Manual

 Screw specifications Number of screws
M2 x L2.5 1

Step 2. Remove the 2280 solid-state drive by pulling it away from the slot.

Figure 14. Remove the 2280 solid-state drive

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

replacement part:
2280 solid-state drive

Remove the speakers

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 speaker connector from the system board.

Chapter 4. Removing a FRU or CRU 35

 Figure 15. Disconnect cables

Step 2. Carefully remove the speakers.

Figure 16. Remove speakers

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

replacement parts:
Speaker

Remove the coin-cell battery

Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 28
“Remove the I/O board” on page 42

36 IdeaPad Series 1 Hardware Maintenance Manual

Step 1. Disconnect the battery pack cable and coin-cell battery cable from the system board. Then,
remove the coin-cell battery.

Figure 17. Disconnect cables and remove the coin-cell battery

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

replacement part:
Coin-cell battery

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 and the Wi-Fi card cable from the system board.

Figure 18. Disconnect cables

Chapter 4. Removing a FRU or CRU 37

Step 2. Remove one screw, and then remove the Wi-Fi card.

Figure 19. Remove the Wi-Fi card

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 part:
Wi-Fi card

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.

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

38 IdeaPad Series 1 Hardware Maintenance Manual

 Figure 20. Disconnect the battery pack cable

Step 2. Loosen three screws and remove the heat sink.

Figure 21. Loosen three screws and remove the heat sink

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 the fan cable from the system board.

Chapter 4. Removing a FRU or CRU 39

 Figure 22. Disconnect cables

Step 2. Remove two screws and then remove the fan.

Figure 23. Remove two screws and the fan

Screw specifications Number of screws

M2 x L4 2

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

replacement parts:
Fan

Remove the DC-in cable

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

40 IdeaPad Series 1 Hardware Maintenance Manual

 “Remove the lower case” on page 28

Step 1. Disconnect the battery pack cable and the fan cable from the system board. Then, remove three
screws and open the right hinge.

Figure 24. Disconnect cables

Screw specifications Number of screws

M2 x L4 1
M2.5 x L4.5 2

Step 2. Disconnect the DC-in connector and remove the DC-in cable.

Figure 25. Disconnect and remove the DC-in cable

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

replacement parts:

Chapter 4. Removing a FRU or CRU 41

 DC-in cable

Remove the I/O board

Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 28

Step 1. Disconnect the battery pack cable, the I/O board cable, and fingerprint board cable from the
system board. Then, remove four screws

Figure 26. Disconnect cables and remove four screws

Screw specifications Number of screws

M2 x L4 1
M2.5 x L4.5 3

Step 2. Open the left hinge and remove the I/O board.

42 IdeaPad Series 1 Hardware Maintenance Manual

 Figure 27. Open the left hinge and remove 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

Remove the I/O board (without fingerprint board)

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 I/O board cable from the system board. Then, remove four
screws.

Chapter 4. Removing a FRU or CRU 43

 Figure 28. Disconnect cables and remove four screws

Screw specifications Number of screws

M2 x L4 1
M2.5 x L4.5 3

Step 2. Open the left hinge and remove the I/O board.

Figure 29. Open the left hinge and remove the I/O board

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

replacement part:
I/O board

44 IdeaPad Series 1 Hardware Maintenance Manual

Remove the fingerprint reader (for selected models)
Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 28
“Remove the I/O board” on page 42
“Remove the I/O board (without fingerprint board)” on page 43

Step 1. Remove the fingerprint reader.

Figure 30. Disconnect cables and remove four screws

Step 2. Remove the fingerprint reader cable from the reader.

Figure 31. Remove the I/O board

Chapter 4. Removing a FRU or CRU 45

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

Remove the system board

Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 28
“Remove the memory” on page 32
“Remove the 2242 solid-state drive (for selected models)” on page 33
“Remove the 2280 solid-state drive (for selected models)” on page 34
“Remove the Wi-Fi card” on page 37
“Remove the heat sink” on page 38
“Remove the fan” on page 39

Step 1. Disconnect the CMOS battery connector, keyboard light cable connector, speaker connector,
touchpad cable connector, I/O board cable connector, dc-in cable connector from the system
board.

Figure 32. Disconnect cables

Step 2. Remove three screws and open the left hinge. Then, remove the system board.

46 IdeaPad Series 1 Hardware Maintenance Manual

 Figure 33. Remove the system board

Screw specifications Number of screws

M2 x L4 1
M2.5 x L4.5 2

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

replacement part:
System board

Write key product information to a replacement system board

Some key product information and settings are stored in the ROMs of the PC’s system board. The
information and settings are essential for using and servicing a Lenovo PC. After replacing a system board
for a Lenovo PC, you need to use a Lenovo-provided software tool to write key information—including
machine type model (MTM), serial number (SN), and product name—as well as settings such as keyboard
language to the replacement system board.

For service technicians, go to https://support.lenovo.com/us/en/solutions/ht102004 for detailed instructions on

how to create and use a Golden Key U1 tool or a normal BIOS tool.

For users, follow the following steps:

Attention: Take extra caution when entering the MTM and SN and when selecting the product name and
keyboard language. Carefully verify these details before committing the writing action. Once recorded on the
system board, they cannot be altered. Consult Lenovo service if you are uncertain about the MTM, SN, and
product name for your PC.

Step 1. Connect the ac power adapter and turn on the computer.

Step 2. Download the tool package and double-click the WinMBDWizard.exe file to run the tool. To
download the tool, go to https://support.lenovo.com/solutions/HT516532.
Step 3. Follow the on-screen instructions to input the MTM and SN, select the product name and keyboard
language of the computer.
Step 4. Click Start Update to update the product information.

Chapter 4. Removing a FRU or CRU 47

Step 5. Click Yes in the confirmation window to continue the update.
Step 6. Click Finish to close the tool.
Step 7. Click Yes in the confirmation window to restart the computer and apply the configuration on the
system board.

Note: Do not turn off the computer or disconnect the computer from ac power during the whole
process.

Remove the upper case

Make sure the following FRUs (CRUs) have been removed.
“Remove the lower case” on page 28

Step 1. Disconnect the battery pack cable. Then, remove six screws.

Figure 34. Disconnect the battery pack cable and remove six screws

Screw specifications Number of screws

M2 x L4 1
M2.5 x L4.5 5

Step 2.
Rotate the upper case to a degree less than 90º and remove the upper case.

48 IdeaPad Series 1 Hardware Maintenance Manual

 Figure 35. Remove the upper case

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

replacement part:
Upper case

Remove the LCD bezel

Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 28
“Remove the upper case” on page 48
“Remove the hinge cover” on page 50

Step 1. Remove two screws. Then, remove the LCD bezel.

Figure 36. Remove the LCD bezel

Chapter 4. Removing a FRU or CRU 49

 Screw specifications Number of screws
M2 x L4 2

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

replacement part:
LCD bezel

Remove the hinge cover

Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 28
“Remove the upper case” on page 48

Step 1. Remove the hinge cover.

Figure 37. Remove the hinge cover

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

replacement part:
Hinge cover

Remove the LCD module

Make sure the following FRUs (CRUs) have been removed.
“Remove the lower case” on page 28
“Remove the upper case” on page 48
“Remove the hinge cover” on page 50
“Remove the LCD bezel” on page 49

Step 1. Pull out two removable tapes and lift the LCD module.

50 IdeaPad Series 1 Hardware Maintenance Manual

 Figure 38. Pull out removable tapes and lift the LCD module

Step 2. Peel off the mylar tape and disconnect the camera cable and EDP cable from the LCD module.
Then, remove the LCD module.

Figure 39. Rotate the LCD module and remove six screws

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

replacement part:
LCD module

Remove the hinges

Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 28
“Remove the upper case” on page 48

Chapter 4. Removing a FRU or CRU 51

 “Remove the hinge cover” on page 50

Step 1. Remove eight screws.

Figure 40. Remove eight screws

Screw specifications Number of screws

M2.5 x L4.5 8

Step 2. Remove the hinges.

Figure 41. Remove the hinges

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

replacement part:
Hinge

52 IdeaPad Series 1 Hardware Maintenance Manual

Remove the microphone rubbers
Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 28
“Remove the upper case” on page 48
“Remove the hinge cover” on page 50
“Remove the LCD bezel” on page 49
“Remove the LCD module” on page 50

Step 1. Remove the microphone rubbers.

Figure 42. Disconnect cables and remove four screws

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

replacement part:
Microphone rubber

Remove the EDP cable

Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 28
“Remove the upper case” on page 48
“Remove the hinge cover” on page 50
“Remove the LCD bezel” on page 49
“Remove the LCD module” on page 50

Step 1. Disconnect the camera cable.

Chapter 4. Removing a FRU or CRU 53

 Figure 43. Disconnect cables and remove four screws

Step 2. Remove the EDP cable.

Figure 44. 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 camera module

Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 28
“Remove the upper case” on page 48
“Remove the hinge cover” on page 50

54 IdeaPad Series 1 Hardware Maintenance Manual

 “Remove the LCD bezel” on page 49
“Remove the LCD module” on page 50
“Remove the microphone rubbers” on page 53

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

Figure 45. Disconnect the camera connector and remove the camera

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

replacement part:
Camera module

Chapter 4. Removing a FRU or CRU 55

56 IdeaPad Series 1 Hardware Maintenance Manual
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