Lenovo 16G7ARP ThinkBook 14 Gen Laptop User Manual
- June 1, 2024
- Lenovo
Table of Contents
Lenovo 16G7ARP ThinkBook 14 Gen Laptop
Specifications
- Model Name: Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7
- Machine Type (MT): 21MV, 21MW, 21MR, 21MS
Product Information
The Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7 are designed for efficient hardware maintenance. This manual provides detailed service and reference information for various models of the ThinkBook series.
Safety Information
General Safety
- Ensure safe standing to prevent slipping.
- Distribute weight evenly between feet when lifting objects.
- Use a slow and steady lifting force to avoid sudden movements.
- Avoid lifting objects heavier than 16 kg (35 lb) alone.
Electrical Safety
Observe safety rules when working with electrical equipment.
Keep tools insulated and avoid contact with live circuits.
Safety Inspection Guide
Inspect for unsafe conditions before servicing. Check power off and cord disconnected before beginning any service task.
Product Usage Instructions
Chapter 1: Safety Information
Read and familiarize yourself with the safety guidelines provided in the manual to ensure safe handling of the device.
Chapter 2: General Checkout
Follow the instructions on what to do first and refer to the CRU list for maintenance tasks.
Chapter 3: Identifying FRUs (CRUs)
Locate and identify Field Replaceable Units (FRUs) and Customer Replaceable Units (CRUs) within the device for maintenance purposes.
Chapter 4: Removing a FRU or CRU
Use appropriate service tools and follow general guidelines for safely removing components. Handle thermal interface materials with care during maintenance procedures.
FAQs
- Q: How often should I perform general checkouts on my ThinkBook?
- A: It is recommended to perform general checkouts periodically to ensure optimal performance and longevity of your device.
- Q: Can I replace components myself following the instructions in the manual?
- A: While the manual provides detailed instructions, it is advisable to seek professional assistance if you are unsure about performing component replacements.
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Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7 Hardware Maintenance Manual
First Edition (February 2024) © Copyright Lenovo 2024.
ii Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
About this manual
This manual contains service and reference information for the following Lenovo products. Illustrations in this manual may look slightly different from your product model.
Model name ThinkBook 14 G7 ARP ThinkBook 16 G7 ARP ThinkBook 14 G7 IML ThinkBook 16 G7 IML
Machine type (MT) 21MV 21MW 21MR 21MS
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 2024
iii
iv Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware 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 2024
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
2 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware 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 is 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 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance
Manual
DANGER DANGER DANGER DANGER DANGER
Chapter 1. Safety information 5
6 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
PERIGO PERIGO PERIGO
Chapter 1. Safety information 7
PERIGO
PERIGO PERIGO PERIGO PERIGO 8 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook
16 Gen 7Hardware Maintenance Manual
DANGER DANGER DANGER DANGER
Chapter 1. Safety information 9
DANGER DANGER DANGER DANGER VORSICHT 10 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
VORSICHT VORSICHT VORSICHT VORSICHT
Chapter 1. Safety information 11
VORSICHT VORSICHT VORSICHT
12 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance
Manual
Chapter 1. Safety information 13
14 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Chapter 1. Safety information 15
16 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Chapter 1. Safety information 17
18 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Chapter 1. Safety information 19
20 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware 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 writing 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 2024
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 ac power adapter Power cord Lower case Memory module 2242 solid-state
drive 2280 solid-state drive 2242 solid-state drive bracket*
Type self-service self-service optional-service optional-service optional- service optional-service optional-service
- For selected models
22 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware 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. Lenovo ThinkBook 14 Gen 7 exploded view
Table 1. FRU (CRU) categories
No.
FRU (CRU) category
1
LCD module
© Copyright Lenovo 2024
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Table 1. FRU (CRU) categories (continued)
2
Power button (without fingerprint reader)*
3
Fingerprint reader*
4
Fingerprint reader cable*
5
I/O bracket
6
I/O board cable
7
I/O board
8
Wi-Fi card
9
Memory module mylar
10
Memory module
11
2242 solid-state drive*
12
2280 solid-state drive*
13
2242 solid-state drive bracket*
14
Solid-state drive thermal pad*
15
Lower case
16
Battery pack
17
Battery pack protective sponge
18
Coin-cell battery
19
Speakers
20
Fan
21
Heat sink
22
System board
23
Touchpad board cable
24
Upper case (with keyboard)
a
Power cord
b
ac power adapter
c
Screw kit
24 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Figure 2. Lenovo ThinkBook 16 Gen 7 exploded view
Table 2. FRU (CRU) categories
No.
FRU (CRU) category
1
LCD module
2
Power button (without fingerprint reader)*
3
Fingerprint reader*
4
Fingerprint reader cable*
5
I/O bracket
6
I/O board cable
7
I/O board
8
System board
9
Wi-Fi card
10
Memory module mylar
Chapter 3. Identifying FRUs (CRUs) 25
Table 2. FRU (CRU) categories (continued)
11
Memory module
12
2242 solid-state drive*
13
2280 solid-state drive*
14
2242 solid-state drive bracket*
15
Solid-state drive thermal pad*
16
Lower case
17
Battery pack
18
Battery pack protective sponge
19
Coin-cell battery
20
Speakers
21
Fan
22
Heat sink
23
Touchpad board cable
24
Upper case (with keyboard)
a
Power cord
b
ac power adapter
c
Screw kit
- For selected models
26 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Figure 3. LCD exploded view
Table 3. FRU (CRU) categories
No.
FRU (CRU) category
1
LCD bezel
2
Microphone rubbers
3
Camera module
4
Touch board cable*
5
Antennas
6
Adhesive tapes
7
LCD panel
8
Upper case
9
EDP cable
10
Hinges
11
Hinge cover
- For selected models
Chapter 3. Identifying FRUs (CRUs) 27
28 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware 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 4. Service tools Service tool and consumable Screw driver (Phillips head) (PH1/PH0) Screw driver (Torx head) (T5) Screw driver (Torx head) (T30) Pry tool 1 Tweezers (conductive) Tweezers (isolated) Suction cup Hexagonal socket Thermal interface materials Acetate tape Polyamide tape Mylar tape Electrical tape Double-sided tape Conductive tape Eraser Heat gun Brown brush
Model applicability X
X X
X X
Notes: · T30 screw drivers are used to service the new Intel Xeon CPUs. · Hexagonal sockets are used to remove antenna connectors.
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 2024
29
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, 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 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).
Handling thermal interface materials
Thermal interface materials are typically applied between a heat sink and a
CPU (and/or GPU) die to enhance the heat transfer capability of the heat sink.
If thermal interface materials are exposed during computer servicing, such as
when replacing the heat sink or system board, it is important to handle the
thermal interface materials properly.
· You need to completely remove the old thermal interface materials from the
CPU and/or GPU die.
· You need to apply new thermal interface materials onto the heat sink
according to the type, quantity, and application areas specified in this
publication.
Related tasks “Remove the heat sink” on page 41 “Remove the system board and
I/O board cable” on page 52
Type, quantity, and area of thermal interface materials application on the
heat sink
The table and figure below provide information on the type and quantity of
thermal interface materials, as well as the specific area on the heat sink
where these materials should be applied.
Area a
Type X-23-8160
Quantity 0.18 g, 12.82 mm × 16.25 mm × 0.2 mm (for ARP models) 0.22 g, 11.24 mm × 22.89 mm × 0.2 mm (for IML models)
30 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Figure 4. Area on the heat sink where thermal interface materials should be
applied
Area on the system board where thermal interface materials are applied
The following figure shows the area on the system board where thermal
interface materials are applied.
Figure 5. Area on the system board where thermal interface materials are
applied
Remove the lower case
Make sure the computer has been shut down before servicing the computer. Step
- Place the computer upside down on a flat surface. Step 2. Loosen five
screws and remove four screws. Then, pry up the latches and remove the lower
case.
Chapter 4. Removing a FRU or CRU 31
Figure 6. Loosen five screws, remove four screws and the lower case
Screw specifications M2 × L4
Number of screws 4
Torque force (kgf.cm) 1.85 ± 0.15
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 31
Step 1. Disconnect the cable from the system board. Then, remove five screws
and then remove the battery pack.
Attention: Use your fingernail to pull the connector to unplug it. Do not pull
the cable.
32 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Note: The actual battery pack may look different from the photo. Figure 7. Remove the battery pack
Screw specifications M2 × L4
Number of screws 5
Torque force (kgf.cm) 1.85 ± 0.15
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement part:
Battery pack
Remove the battery protective sponge
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31 “Remove the battery pack” on page 32
Step 1. Remove the battery protective sponge. 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 8. Remove the battery protective sponge Go to
https://support.lenovo.com/partslookup to look up the Lenovo part numbers of
the following replacement part:
Battery protective sponge
Remove the Wi-Fi card
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31
Step 1. Disconnect the battery pack cable from the system board. Then,
disconnect the Wi-Fi card antennas, remove one screw and remove the Wi-Fi
card. Attention: Use your fingernail to pull the connector to unplug it. Do
not pull the cable.
Figure 9. Remove the Wi-Fi card 34 Lenovo ThinkBook 14 Gen 7 and Lenovo
ThinkBook 16 Gen 7Hardware Maintenance Manual
Screw specifications
Number of screws
M2 × L2 (ThinkBook 14 Gen 7) 1
M2 × L3 (ThinkBook 16 Gen 7) 1
Torque force (kgf.cm) 1.85 ± 0.15 1.85 ± 0.15
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement part:
Wi-Fi card
Remove the I/O bracket
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31
Step 1. Disconnect the battery pack cable from the system board. Remove three
screws and open the right hinge. Then, remove two screws and remove the I/O
bracket.
Attention: Use your fingernail to pull the connector to unplug it. Do not pull
the cable.
Figure 10. Remove the I/O bracket
Screw specifications
M2 × L4 M2.5 × L6 (ThinkBook 14 Gen 7)
M2.5 × L6.5 (ThinkBook 16 Gen 7)
Number of screws 3 2
2
Torque force (kgf.cm) 1.85 ± 0.15 3.0 ± 0.15
3.0 ± 0.15
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement parts:
I/O bracket
Chapter 4. Removing a FRU or CRU 35
Remove the 2242 solid-state drive and bracket (for selected models)
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31
Step 1. Disconnect the battery pack cable from the system board. Then, remove
two screws and remove the 2242 solid-state drives by pulling them away from
the slots.
Attention: Use your fingernail to pull the connector to unplug it. Do not pull
the cable.
Figure 11. Remove the 2242 solid-state drives
Screw specifications
Number of screws
M2 × L2 (ThinkBook 14 Gen 7) 2
M2 × L3 (ThinkBook 16 Gen 7) 2
Step 2. Remove the 2242 solid-state drive thermal pad.
Torque force (kgf.cm) 1.85 ± 0.15 1.85 ± 0.15
36 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Figure 12. Remove the 2242 solid-state drive thermal pad Step 3. Remove one screw and remove the 2242 solid-state drive bracket.
Figure 13. Remove the 2242 solid-state drive bracket
Screw specifications M2 × L3
Number of screws 1
Torque force (kgf.cm) 1.85 ± 0.15
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement part:
2242 solid-state drive 2242 solid-state drive bracket 2242 solid-state drive
thermal pad
Chapter 4. Removing a FRU or CRU 37
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 31
Step 1. Disconnect the battery pack cable from the system board. Then, remove
two screws and remove the 2280 solid-state drives by pulling them away from
the slots.
Attention: Use your fingernail to pull the connector to unplug it. Do not pull
the cable.
Figure 14. Remove the 2280 solid-state drives
Screw specifications
Number of screws
M2 × L2 (ThinkBook 14 Gen 7) 2
M2 × L3 (ThinkBook 16 Gen 7) 2
Step 2. Remove the 2280 solid-state drive thermal pad.
Torque force (kgf.cm) 1.85 ± 0.15 1.85 ± 0.15
38 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Figure 15. Remove the 2280 solid-state drive thermal pad Go to
https://support.lenovo.com/partslookup to look up the Lenovo part numbers of
the following replacement part:
2280 solid-state drive 2280 solid-state drive thermal pad
Remove the fan (ThinkBook 14 Gen 7)
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31
Step 1. Disconnect the battery pack cable from the system board. Then,
disconnect the fan cable from the system board, remove three screws and remove
the fan. Attention: Use your fingernail to pull the connector to unplug it. Do
not pull the cable.
Chapter 4. Removing a FRU or CRU 39
Figure 16. Remove three screws and the fan
Screw specifications M2 × L4
Number of screws 3
Torque force (kgf.cm) 1.85 ± 0.15
Note: For touch screen models, release the touch board cable from the fan
first.
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement parts:
Fan
Remove the fan (ThinkBook 16 Gen 7)
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31
Step 1. Disconnect the battery pack cable from the system board. Then,
disconnect the fan cable from the system board, remove three screws and remove
the fan.
Attention: Use your fingernail to pull the connector to unplug it. Do not pull
the cable.
40 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Figure 17. Remove three screws and the fan
Note: For touch screen models, release the touch board cable from the fan first.
Screw specifications
Number of screws
Torque force (kgf.cm)
M2 × L4
3
1.85 ± 0.15
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement parts:
Fan
Remove the heat sink
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31
Step 1. Disconnect the battery pack cable from the system board. Then, remove
three screws in the alphabetical order. Then, remove the heat sink.
Attention: Use your fingernail to pull the connector to unplug it. Do not pull
the cable.
Chapter 4. Removing a FRU or CRU 41
Figure 18. Remove 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 coin-cell battery
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31
Step 1. Disconnect the battery pack cable from the system board. Then, remove
the coin-cell battery. Attention: Use your fingernail to pull the connector to
unplug it. Do not pull the cable.
Figure 19. Remove the coin-cell battery
42 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance
Manual
Go to
https://support.lenovo.com/partslookup
to look up the Lenovo part numbers of the following replacement parts:
Coin-cell battery
Remove the memory module
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31
Step 1. Disconnect the battery pack cable from the system board. Then, peel
off the memory module mylar. Attention: Use your fingernail to pull the
connector to unplug it. Do not pull the cable.
Figure 20. Peel off the memory module mylar Step 2. Open the latches and
remove the memory module.
Chapter 4. Removing a FRU or CRU 43
Figure 21. Remove the memory module Go to
https://support.lenovo.com/partslookup to look up the Lenovo part numbers of
the following replacement part:
Memory module
Remove the speakers
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31
Step 1. Disconnect the battery pack cable and the speaker cable from the
system board. Then, carefully remove the speakers. Attention: Use your
fingernail to pull the connector to unplug it. Do not pull the cable.
Figure 22. Disconnect cables and remove the speaker 44 Lenovo ThinkBook 14 Gen
7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement parts:
Speakers
Remove the touchpad board cable
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the battery pack” on page 32 “Remove the battery protective
sponge” on page 33
Step 1. Lift the touchpad board cable and I/O board cable.
Figure 23. Lift the cables Step 2. Disconnect the touchpad board cable from
the system board and the touchpad. Then, carefully
remove the cable.
Chapter 4. Removing a FRU or CRU 45
Figure 24. Disconnect and remove the touchpad board cable. Go to
https://support.lenovo.com/partslookup to look up the Lenovo part numbers of
the following replacement parts:
Touchpad board cable
Remove the I/O board (ThinkBook 14 Gen 7)
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31 “Remove the fan (ThinkBook 14 Gen 7)” on page 39 “Remove the
heat sink” on page 41 “Remove the coin-cell battery” on page 42
Step 1. Pull out the antenna cables. Then, remove three screws and open the
left hinge.
46 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance
Manual
Figure 25. Remove three screws and open the hinge
Screw specifications M2.5 × L6
Number of screws 3
Torque force (kgf.cm) 3.0 ± 0.15
Step 2. Disconnect the I/O board cable and fingerprint reader cable (if any).
Figure 26. Disconnect the cable(s) Step 3. Remove three screws and remove the
I/O board.
Chapter 4. Removing a FRU or CRU 47
Figure 27. Remove three screws and remove the I/O board with cable
Screw specifications M2 × L4
Number of screws 3
Torque force (kgf.cm) 1.85 ± 0.15
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement part:
I/O board
Remove the I/O board (ThinkBook 16 Gen 7)
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31 “Remove the coin-cell battery” on page 42
Step 1. Disconnect the I/O board cable and fingerprint reader cable (if any).
Then, remove three screws and open the left hinge.
48 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Figure 28. Disconnect the cable(s) and open the hinge
Screw specifications M2.5 × L6.5
Number of screws 3
Step 2. Remove three screws and the I/O board.
Torque force (kgf.cm) 3.0 ± 0.15
Figure 29. Remove three screws and the I/O board
Screw specifications M2 × L4
Number of screws 3
Torque force (kgf.cm) 1.85 ± 0.15
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement part:
I/O board
Chapter 4. Removing a FRU or CRU 49
Remove the fingerprint reader module (for selected models)
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the I/O board (ThinkBook 14 Gen 7)” on page 46 “Remove the
I/O board (ThinkBook 16 Gen 7)” on page 48
Step 1. Remove the acetate tapes.
Figure 30. Remove the acetate tapes Step 2. Remove the fingerprint reader
module.
Figure 31. Remove the fingerprint reader module Step 3. Disconnect the
fingerprint reader cable. 50 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16
Gen 7Hardware Maintenance Manual
Figure 32. Disconnect the fingerprint reader cable
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement parts:
Fingerprint reader module
Remove the power button (for selected models)
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the I/O board (ThinkBook 14 Gen 7)” on page 46 “Remove the
I/O board (ThinkBook 16 Gen 7)” on page 48
Step 1. Remove the power button.
Figure 33. Remove the power button
Chapter 4. Removing a FRU or CRU 51
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement parts:
Power button
Remove the system board and I/O board cable
Make sure the following FRUs (or CRUs) have been removed. “Remove the lower
case” on page 31 “Remove the battery pack” on page 32 “Remove the battery
protective sponge” on page 33 “Remove the 2242 solid-state drive and bracket
(for selected models)” on page 36 “Remove the 2280 solid-state drive (for
selected models)” on page 38 “Remove the Wi-Fi card” on page 34 “Remove the
I/O bracket” on page 35 “Remove the fan (ThinkBook 14 Gen 7)” on page 39
“Remove the fan (ThinkBook 16 Gen 7)” on page 40 “Remove the heat sink” on
page 41 “Remove the memory module” on page 43
Step 1. Disconnect cables connected to the system board.
Figure 34. Disconnect cables Note: For touch screen models, disconnect the
touch board cable from the system board. Step 2. Remove one screw and remove
the system board.
52 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance
Manual
Figure 35. Remove one screw and remove the system board
Screw specifications M2 × L4
Number of screws 1
Step 3. Disconnect the I/O board cable from the system board.
Torque force (kgf.cm) 1.85 ± 0.15
Figure 36. Disconnect the I/O board cable from the system board Go to
https://support.lenovo.com/partslookup to look up the Lenovo part numbers of
the following replacement part:
System board I/O board cable
Chapter 4. Removing a FRU or CRU 53
Use a Golden Key U1 tool to flash-write key id information
After replacing the system board and re-assembling the computer, use a pre-
made Golden Key U1 tool to start the computer and flash-write the serial
number (SN), machine type (MT), product name (PN), and UUID to the new system
board.
The Golden Key U1 tool is prepared by running the U1 Update software on a
FAT32-formatted USB thumb drive. Go to
http://support.lenovo.com/us/en/solutions/HT506954 for detailed instructions
on how to create and use a Golden Key U1 tool.
Remove the LCD module (for non-touch screen models)
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the heat sink” on page 41
Step 1. Disconnect EDP cable and antenna cables from the system board. Then,
remove six screws.
Figure 37. Disconnect EDP cable from the system board. Remove six screws
Screw specifications (ThinkBook 14 Gen 7)
M2.5 × L6 M2 × L4
Number of screws
5 1
Torque force (kgf.cm)
3.0 ± 0.15 1.85 ± 0.15
Screw specifications (ThinkBook 16 Gen 7)
Number of screws
Torque force (kgf.cm)
M2.5 × L6.5
5
M2 × L4
1
3.0 ± 0.15 1.85 ± 0.15
Step 2. Rotate the LCD module to an angle of more than 90 degrees and remove the LCD module.
54 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Figure 38. Rotate and remove LCD module Go to
https://support.lenovo.com/partslookup to look up the Lenovo part numbers of
the following replacement part:
LCD module
Remove the LCD module (for touch screen models)
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the battery pack” on page 32 “Remove the heat sink” on page
41
Step 1. Disconnect EDP cable, touch board cable and antenna cable from the
system board. Then, remove six screws.
Chapter 4. Removing a FRU or CRU 55
Figure 39. Disconnect cables and remove six screws
Screw specifications (ThinkBook 14 Gen 7)
M2.5 × L6 M2 × L4
Number of screws
5 1
Torque force (kgf.cm)
3.0 ± 0.15 1.85 ± 0.15
Screw specifications (ThinkBook 16 Gen 7)
Number of screws
Torque force (kgf.cm)
M2.5 × L6.5
5
M2 × L4
1
3.0 ± 0.15 1.85 ± 0.15
Step 2. Rotate the LCD module to an angle of more than 90 degrees and remove the LCD module.
Figure 40. Rotate and remove LCD module 56 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement part:
LCD module
Remove the upper case (with keyboard)
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the battery pack” on page 32 “Remove the battery protective
sponge” on page 33 “Remove the Wi-Fi card” on page 34 “Remove the I/O bracket”
on page 35 “Remove the 2242 solid-state drive and bracket (for selected
models)” on page 36 “Remove the 2280 solid-state drive (for selected models)”
on page 38 “Remove the fan (ThinkBook 14 Gen 7)” on page 39 “Remove the fan
(ThinkBook 16 Gen 7)” on page 40 “Remove the heat sink” on page 41 “Remove the
memory module” on page 43 “Remove the speakers” on page 44 “Remove the
touchpad board cable” on page 45 “Remove the I/O board (ThinkBook 14 Gen 7)”
on page 46 “Remove the I/O board (ThinkBook 16 Gen 7)” on page 48 “Remove the
fingerprint reader module (for selected models)” on page 50 “Remove the power
button (for selected models)” on page 51 “Remove the system board and I/O
board cable” on page 52 “Remove the LCD module (for non-touch screen models)”
on page 54 “Remove the LCD module (for touch screen models)” on page 55
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 hinge cover
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the upper case (with keyboard)” on page 57
Step 1. Remove the hinge cover.
Chapter 4. Removing a FRU or CRU 57
Figure 41. 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 bezel
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the upper case (with keyboard)” on page 57 “Remove the
hinge cover” on page 57
Step 1. Remove three screws and remove the LCD bezel.
Figure 42. Remove three screws and remove the LCD bezel 58 Lenovo ThinkBook 14
Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
Screw specifications M2 × L4
Number of screws 3
Torque force (kgf.cm) 1.85 ± 0.15
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement part:
LCD bezel
Remove the hinges
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the upper case (with keyboard)” on page 57 “Remove the
hinge cover” on page 57 “Remove the LCD bezel” on page 58
Step 1. Remove six screws and remove the hinges.
Figure 43. Remove six screws and remove the hinges
Screw specifications M2 × L2
Number of screws 6
Torque force (kgf.cm) 1.85 ± 0.15
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement part:
Hinges
Remove the LCD panel (for non-touch screen models)
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31
Chapter 4. Removing a FRU or CRU 59
“Remove the upper case (with keyboard)” on page 57 “Remove the hinge cover” on page 57 “Remove the LCD bezel” on page 58 “Remove the hinges” on page 59 Step
- Pull out the adhesive tapes and lift up the LCD panel.
Figure 44. Pull out the adhesive tapes lift up the LCD panel Step 2. Peel back the mylar tape and disconnect the EDP cable. Then, remove the LCD panel.
Figure 45. Peel back the camera board cable and EDP cables. Then, remove the LCD panel Notes: When you turn on the computer and the LCD goes black, run LCD Self-Test to help you determine whether the LCD functions normally. To run LCD Self-Test: 60 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance Manual
1. Ensure that the computer is connected to ac power. Then, press the power
button for about seven seconds to turn off the computer.
2. Press Fn, left Ctrl, and the power button at the same time. If the
computer displays five solid colors in sequence across the entire screen, it
indicates that the LCD functions normally.
3. The test lasts for about 20 seconds and then exits automatically. You also
can press the power button to exit the test.
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement part:
Adhesive tapes LCD panel
Remove the LCD panel (for touch screen models)
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the upper case (with keyboard)” on page 57 “Remove the
hinge cover” on page 57 “Remove the LCD bezel” on page 58 “Remove the hinges”
on page 59
Step 1. Disconnect and remove the touch board cable from the touch board.
Then, disconnect the LCD panel cable from the touch board and lift the LCD
panel.
Figure 46. Disconnect the touch board and LCD panel cable Step 2. Peel back
the mylar tape and disconnect the EDP cable. Then, remove the LCD panel.
Chapter 4. Removing a FRU or CRU 61
Figure 47. Peel back the camera board cable and EDP cables. Then, remove the
LCD panel
Notes: When you turn on the computer and the LCD goes black, run LCD Self-Test
to help you determine whether the LCD functions normally. To run LCD Self-
Test:
1. Ensure that the computer is connected to ac power. Then, press the power
button for about seven seconds to turn off the computer.
2. Press Fn, left Ctrl, and the power button at the same time. If the
computer displays five solid colors in sequence across the entire screen, it
indicates that the LCD functions normally.
3. The test lasts for about 20 seconds and then exits automatically. You also
can press the power button to exit the test.
Go to https://support.lenovo.com/partslookup to look up the Lenovo part
numbers of the following replacement part:
Adhesive tapes LCD panel Touch board cable
Remove the microphone rubbers
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the upper case (with keyboard)” on page 57 “Remove the
hinge cover” on page 57 “Remove the LCD bezel” on page 58 “Remove the hinges”
on page 59 “Remove the LCD panel (for non-touch screen models)” on page 59
“Remove the LCD panel (for touch screen models)” on page 61
Step 1. Remove the microphone rubbers.
62 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance
Manual
Figure 48. 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 board
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the upper case (with keyboard)” on page 57 “Remove the
hinge cover” on page 57 “Remove the LCD bezel” on page 58 “Remove the hinges”
on page 59 “Remove the LCD panel (for non-touch screen models)” on page 59
“Remove the LCD panel (for touch screen models)” on page 61 “Remove the
microphone rubbers” on page 62
Step 1. Remove the camera board sponge.
Chapter 4. Removing a FRU or CRU 63
Figure 49. Remove the camera board sponge Note: Sponge is for models equipped
with infrared camera. Step 2. Disconnect the camera board cable.
Figure 50. Disconnect the camera board cable Step 3. Remove the camera board.
64 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance
Manual
Figure 51. Remove the camera board Go to
https://support.lenovo.com/partslookup to look up the Lenovo part numbers of
the following replacement part:
Camera board
Remove the antennas
Make sure the following FRUs (CRUs) have been removed. “Remove the lower case”
on page 31 “Remove the upper case (with keyboard)” on page 57 “Remove the
hinge cover” on page 57 “Remove the LCD bezel” on page 58 “Remove the hinges”
on page 59 “Remove the LCD panel (for non-touch screen models)” on page 59
“Remove the LCD panel (for touch screen models)” on page 61
Step 1. Remove the antennas.
Chapter 4. Removing a FRU or CRU 65
Figure 52. Remove the antennas Go to https://support.lenovo.com/partslookup to
look up the Lenovo part numbers of the following replacement part:
Antenna
66 Lenovo ThinkBook 14 Gen 7 and Lenovo ThinkBook 16 Gen 7Hardware Maintenance
Manual
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the property of their respective owners. © 2024 Lenovo.
References
- support.lenovo.com/us/en/solutions/HT506954
- Lenovo Computer Parts | Genuine Replacement Parts | Lenovo Support US
- Lenovo Computer Parts | Genuine Replacement Parts | Lenovo Support US