Hardware Maintenance Manual

Lenovo

Lenovo ThinkBook 16p Gen 2

First Edition (May 2021)

© Copyright Lenovo 2021.

Contents

About this manual ..... iii
Chapter 1. Safety information ..... 1
General safety ..... 1
Electrical safety ..... 1
Safety inspection guide ..... 2
Handling devices that are sensitive to electrostatic discharge ..... 3
Grounding requirements ..... 4
Safety notices (multilingual translations) ..... 4
Chapter 2. General checkout ..... 21
What to do first ..... 21
CRU list ..... 22
Chapter 3. Identifying FRUs (CRUs) ..... 23
Locate FRUs and CRUs ..... 23
Chapter 4. Removing a FRU or CRU ..... 27
Service tools ..... 27
General guidelines ..... 27
Removal procedure ..... 29
Remove the lower case ..... 29
Remove the solid-state drive (SSD) module ..... 30

Remove the battery pack ..... 32
Remove the Wi-Fi card ..... 32
Remove the DC-in bracket ..... 33
Remove the memory module mylar ..... 34
Remove the memory module ..... 34
Remove the heat sink ..... 35
Remove the fans ..... 36
Remove the solid-state drive (SSD) bracket ..... 37
Remove the USB board module ..... 37
Remove the CMOS battery ..... 39
Remove the speakers ..... 39
Remove the touchpad board cable ..... 40
Remove the system board ..... 41
Remove the fingerprint board module ..... 43
Remove the hall sensor board module ..... 44
Remove the keyboard cable ..... 45
Remove the connector board module ..... 46
Remove the strip cover ..... 47
Remove the LCD module ..... 49
Remove the upper case (with keyboard and touchpad) ..... 51
Disassemble the LCD module ..... 52

pendix A. Label locations. ..... 63
demarks ..... lxv

About this manual

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

Machine

Machine type (MT)

ThinkBook 16p G2 ACH

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.

Chapter 1. Safety information

This chapter presents the following safety information that you need to be familiar with before you service a Lenovo notebook computer.

General safety

Follow these rules to ensure general safety:

• Observe good housekeeping in the area of the machines during and after maintenance.

• When lifting any heavy object:

1. Make sure that you can stand safely without slipping.

2. Distribute the weight of the object equally between your feet.

3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.

4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you.

Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.

• Before you start the machine, make sure that other service technicians and the customer's personnel are not in a hazardous position.

• Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine.

• Keep your tool case away from walk areas so that other people will not trip over it.

Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.

• Insert the ends of your necktie or scarf inside clothing or fasten it with a non-conductive clip, about 8 centimeters (3 inches) from the end.

Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.

Attention: Metal objects are good electrical conductors.

• Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes.

• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective.

• Reinstall all covers correctly before returning the machine to the customer.

• Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers.

Electrical safety

Observe the following rules when working on electrical equipment.

Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock.

• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.

Do not work alone under hazardous conditions or near equipment that has hazardous voltages.

Disconnect all power before:

• Performing a mechanical inspection

• Working near power supplies

• Removing or installing main units

• Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine, and to lock the wall box in the off position.

• If you need to work on a machine that has exposed