Ideapad 3 15IIL05 Hardware Maintenance Manual

IdeaPad 3 (14 ″ , 05), IdeaPad 3 (15 ″ , 05), IdeaPad 3 (17 ″ , 05) , IdeaPad Slim 3 (14 ″ , 05), IdeaPad Slim 3 (15 ″ , 05), IdeaPad Slim 3 (17 ″ , 05) Hardware Maintenance Manual

First Edition (December 2020)

© Copyright Lenovo 2020.

Contents

About this manual . . . . . . . . . . . . iii
Chapter 1. Safety information. . . . . . 1
General safety		.	.	.	.	.	.	.		.	.		.	.	.	.		.	.		. 1
Electrical safety . . . . . . . . . . . . . . . . 1 Safety inspection guide. . . . . . . . . . . . . 2 devices that are sensitive to electrostatic
Handling discharge . .		.	.	.	.	.	.	.		.	.		.	.		.	.	.		.	. 3
Grounding requirements . . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . . 4
Chapter 2.			General				checkout							.	.		.	.		.	21
What to do first	.		.	.	.	.	.		.	.	.		.	.	.		.	.		.	21
CRU list . . . . . . . . . . . . . . . . . . 22 Idetifying FRUs (CRUs) .
Chapter 3. Locate FRUs										.			or .			.		.			23
and CRUs . . . . . . . . . 23 Removing a FRU
Chapter 4. CRU . . .	.		.	.	.	.	.		.	.		.	.		.	.		.		.	27
Service tools	.	.	.	.	.	.				.	.	.								.	27
General guidelines. . . . . . . . . . . . . .
Remove the								.	.				.		.		.	.
27
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lower case . . . . . . .
For 14-inch and 15-inch models . . . . . . 28
For 17-inch models . . . . . . . . . . . 29
the battery pack . . . . . . . . . . .
Remove 31

Table Caption: This table appears to be an index or table of contents for a technical manual, likely related to computer hardware maintenance and repair, detailing chapters on safety, initial checks, and component replacement.

Remove the storage drive with bracket.

Remove the heat sink

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Remove the fan .

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Remove the solid-state drive.

Remove the coin-cell battery.

Remove the memory module

Remove the Wi-Fi card .

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Remove the I/O board

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For 14-inch and 15-inch models

For 17-inch models

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Remove the fingerprint reader

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Remove the system board.

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

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Remove the upper case (with keyboard)

Remove the hinge cover

Remove the LCD bezel .

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Remove the LCD panel .

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Remove the hinges ( for 14-inch and 15-inch models only)

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Remove the microphone rubber

Remove the camera module .

Trademarks

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About this manual

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

Model name	Machine type (MT)
IdeaPad 3 14ADA05	81W0
IdeaPad 3 14ARE05	81W3
IdeaPad 3 14IGL05	81WH
IdeaPad 3 14IIL05	81WD
IdeaPad 3 14IJL05	82MK
IdeaPad 3 14IML05	81WA
IdeaPad 3 14ITL05	81X7
IdeaPad 3 15ADA05	81W1
	82BQ
IdeaPad 3 15ARE05	81W4
	82BR
IdeaPad 3 15IGL05	81WQ
IdeaPad 3 15IIL05	81WE
IdeaPad 3 15IJL05	82ML
IdeaPad 3 15IML05	81WB
	81WR
	82BS
IdeaPad 3 15ITL05	81X8
IdeaPad 3 17ADA05	81W2
IdeaPad 3 17ARE05	81W5
IdeaPad 3 17IML05	81WC
IdeaPad 3 17IIL05	81WF
IdeaPad 14sARE 2020	82CB
IdeaPad 14sIIL 2020	81WD
IdeaPad 14sIML 2020	81WA
IdeaPad 15sARE 2020	82CC
IdeaPad 15sIIL 2020	81WE
IdeaPad 15sIML 2020	81WB

Table Caption: This table lists various Lenovo IdeaPad models and their corresponding Machine Types (MT). Some model names appear multiple times with different MTs, indicating variations within the same named series.

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