Lenovo E4325 Hmm En User Manual Hardware Maintenance Laptop (Lenovo)

2013-12-02

User Manual: Lenovo E4325 Hmm En Hardware Maintenance Manual - Lenovo E4325 E4325 Laptop (Lenovo) Lenovo E4325 Notebook

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Hardware Maintenance Manual

Lenovo E4325

Note: Before using this information and the product it supports, be sure to read the general information
under Appendix A “Notices” on page 79.

First Edition (May 2013)
© Copyright Lenovo 2013.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration
“GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.

Contents
About this manual. . . . . . . . . . .

iii

Chapter 1. Safety information . . . . .

General safety . . . . . . . . . . . . . . .
Electrical safety . . . . . . . . . . . . . .
Safety inspection guide . . . . . . . . . . .
Handling devices that are sensitive to electrostatic
discharge. . . . . . . . . . . . . . . . .
Grounding requirements . . . . . . . . . . .
Safety notices (multilingual translations) . . . . .
Laser compliance statement (multilingual
translations) . . . . . . . . . . . . . . . .

1
2
3

Chapter 2. General checkout . . . . .
What to do first . . . . . . . .
Power system checkout . . . . .
Checking the ac power adapter
Checking operational charging
Checking the battery pack . .

Chapter 3. Related service
information . . . . . . . . . . . . . .

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31
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32
32
32

Chapter 4. Status indicators . . . . .

Chapter 5. Fn key combinations . . .

Chapter 6. Locations . . . . . . . . .

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Locating computer controls, connectors,
indicators. . . . . . . . . . . . .
Front view. . . . . . . . . . .
Right-side view. . . . . . . . .
Bottom and left-side view . . . .
Locating FRUs and CRUs . . . . . .

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27
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28
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29
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Recovering the computer settings
Using passwords. . . . . . .
Power management . . . . .
Screen blank mode . . . .
Sleep mode . . . . . . .
Hibernation mode . . . .

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39
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40
40
40

Major FRUs and CRUs.
LCD FRUs . . . . .
Miscellaneous parts . .
Looking up FRU information

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42
43
45
45

Chapter 7. FRU replacement
notices . . . . . . . . . . . . . . . .

Important notice for replacing FRUs . . . . . .
Screw notices . . . . . . . . . . . . . . .

47
48

Chapter 8. Removing and replacing a
FRU . . . . . . . . . . . . . . . . . .

General guidelines . . . . . . . . . . .
1010 Battery pack . . . . . . . . . . .
1020 Bottom slot cover . . . . . . . . .
1030 Optical drive . . . . . . . . . . .
1040 Memory module . . . . . . . . . .
1050 Hard disk drive assembly . . . . . .
1060 PCI Express Mini Card for wireless LAN
1080 Backup battery . . . . . . . . . .
1090 Keyboard . . . . . . . . . . . .
1100 Keyboard bezel . . . . . . . . . .
1110 LED board . . . . . . . . . . . .
1120 Power board . . . . . . . . . . .
1140 Input/output (I/O) board . . . . . . .
1150 System board assembly and USB board
1160 Thermal module . . . . . . . . . .
1170 Microprocessor . . . . . . . . . .
1180 LCD unit . . . . . . . . . . . . .
1190 Speaker assembly . . . . . . . . .
1200 DC-in connector and base cover . . .
2010 LCD front bezel . . . . . . . . . .
2020 Camera . . . . . . . . . . . . .
2030 LCD panel, LCD cable, and hinges . .
2040 Antenna assembly and LCD rear cover .

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49
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61
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67
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70
72
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78

Appendix A. Notices . . . . . . . . . .

Trademarks . . . . . . . . . . . . . . . .

Hardware Maintenance Manual

About this manual
This manual provides service and reference information for the following Lenovo® products.
Machine

Machine Type (MT)

Lenovo E4325

80BH

This manual provides information about the computer features, specifications, component locations,
hardware replacement procedures, and parts listing. This manual also includes safety guidelines and
important notices for servicing the computer.

Important:
• This manual is intended only for trained service technicians who are familiar with Lenovo products. Use
this manual to troubleshoot problems effectively.
• Before servicing a Lenovo product, be sure to read all the information under Chapter 1 “Safety
information” on page 1 and Chapter 3 “Related service information” on page 31.

iii

Hardware Maintenance Manual

Chapter 1. Safety information
This chapter presents following safety information that you need to be familiar with before you service a
Lenovo Notebook.
• “General safety” on page 1
• “Electrical safety” on page 2
• “Safety inspection guide” on page 3
• “Handling devices that are sensitive to electrostatic discharge” on page 3
• “Grounding requirements” on page 4
• “Safety notices (multilingual translations)” on page 4
• “Laser compliance statement (multilingual translations)” on page 19

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 toolcase 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 nonconductive clip, about 8
centimeters (3 inches) from the end.
• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing, because 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 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,
nongrounded 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 to listed above
This practice ensures correct grounding of the units.
• If an electrical accident occurs:
2

Hardware Maintenance Manual

– 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 CRT face or a bulging capacitor
• Mechanical hazards, such as loose or missing hardware
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 type specified in the parts list.
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.
Chapter 1. Safety information

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.

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

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DANGER

Chapter 1. Safety information

DANGER

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Chapter 1. Safety information

PERIGO

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PERIGO

DANGER

Chapter 1. Safety information

DANGER

VORSICHT

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VORSICHT

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VORSICHT

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Chapter 1. Safety information

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Chapter 1. Safety information

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Laser compliance statement (multilingual translations)
The laser compliance statements in this section are provided in the following languages:
• English
• Arabic
• Brazilian Portuguese
• French
• German
• Hebrew
• Japanese
• Korean
• Spanish
• Traditional Chinese

Chapter 1. Safety information

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Chapter 1. Safety information

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Chapter 1. Safety information

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Chapter 1. Safety information

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Chapter 2. General checkout
This chapter presents following information:
• “What to do first” on page 27
• “Power system checkout” on page 28
Before you go to the checkout guide, be sure to 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.
• When you replace FRUs, it is recommended to use new nylon-coated screws.
• 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 do return a FRU, you must include the following information in the parts exchange form or
parts return form that you attach to it:
• Name and phone number of service technician
• Date of service
• Date on which the machine failed
• Date of purchase
• Procedure index and page number in which the failing FRU was detected
• Failing FRU name and part number
• Machine type, model number, and serial number
• 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
• Damage caused by the improper insertion of a PC Card or the installation of an incompatible card

• Improper disc insertion or use of an optical drive
• Diskette drive damage caused by pressure on the diskette drive cover, foreign material in the drive,
or the insertion of a diskette with multiple labels
• Damaged or bent diskette eject button
• Fuses blown by attachment of a nonsupported 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 nonwarranted activities:
• Missing parts might be a symptom of unauthorized service or modification.
• If the spindle of a hard disk drive becomes noisy, it may have been subjected to excessive force,
or dropped.

Power system checkout
To verify a power symptom, do the following:
1. Turn off the computer.
2. Remove the battery pack.
3. Connect the ac power adapter.
4. Check that power is supplied when you turn on the computer.
5. Turn off the computer.
6. Disconnect the ac power adapter and install the charged battery pack.
7. Check that the battery pack supplies power when you turn on the computer.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
• “Checking the ac power adapter” on page 28
• “Checking operational charging” on page 29
• “Checking the battery pack” on page 29

Checking the ac power adapter
If the computer fails only when the ac power adapter is used, refer to the information in this topic to check
the ac power adapter.
• If the power-on indicator does not turn on, check the power cord of the ac power adapter for correct
continuity and installation.
• If the computer does not charge during operation, go to “Checking operational charging” on page 29.
To check the ac power adapter, do the following:
1. Unplug the ac power adapter cable from the computer.
2. Measure the output voltage across the plug of the ac power adapter cable. The correct voltages are
shown in the following table.

3
2
1

Voltage (V dc)

+20

Ground

(20V)

Note: The output voltage across pin 2 might differ from the voltage that you measure.
3. Depending on the voltage that you measure, do one of the following:

Hardware Maintenance Manual

• If the voltage is not correct, replace the ac power adapter.
• If the voltage is acceptable, do the following:
a. Replace the system board.
b. If the problem persists, call the Customer Support Center.
Note: Noise from the ac power adapter does not always indicate a defect.

Checking operational charging
To check whether the battery pack charges properly during operation, do the following:
Note: Before you begin, install a discharged battery pack or a battery pack that has less than 50% of the
total power remaining in the computer.
1. If the battery status indicator does not turn on, remove the battery pack and let it return to room
temperature.
2. Reinstall the battery pack.
3. If the indicator still does not turn on, replace the battery pack.
4. If the indicator still does not turn on, replace the system board. Otherwise, refer to “Checking the battery
pack” on page 29to check the original battery pack.

Checking the battery pack
The battery status icon in the Microsoft® Windows® notification area displays the percentage of battery
power remaining.
To check detailed battery status information on the Windows operating systems, launch the Power Manager
program and click the Battery tab.
To check the battery pack, do the following:
1. Turn off the computer and disconnect the ac power adapter.
2. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 7 (-). The
correct voltages are shown in the following table.

7(-)

4 3
6(-) 5

Terminal

Voltage (V dc)

+ 0 to + 14

Ground (-)

1(+)
2(+)

3. Measure the resistance between battery terminals 5 and 7. The resistance should be 4 to 30 KΩ. If the
resistance is not correct, replace the battery pack.
4. Depending on the voltage that you measure, do one of the following:
• If the voltage is less than +12.0 V dc, recharge the battery pack. If the voltage still is less than +12.0 V
dc after recharging, replace the battery pack.
• If the voltage is more than +12.0 V dc, discharge the battery pack until the voltage becomes less
than +12.0 V dc and then recharge the battery pack. If the voltage still is less than +12.0 V dc after
recharging, replace the battery pack.
Note: Recharging will take at least three hours, even if the battery status indicator does not turn on.
5. Replace the system board if the new battery pack is not charged.
Chapter 2. General checkout

Hardware Maintenance Manual

Chapter 3. Related service information
This chapter presents the following information:
• “Recovering the computer settings” on page 31
• “Using passwords” on page 31
• “Power management” on page 31

Recovering the computer settings
This topic provides information about the recovery programs that are available for you to recover the
computer settings.
OneKey® Recovery Pro
The OneKey Recovery Pro program enables you to back up all your hard disk drive contents, including the
operating system, data files, software programs, and personal settings. You can designate where the
OneKey Recovery Pro program stores the backup. After you have backed up the contents on the hard disk
drive, you can restore the complete contents of the hard disk drive, restore only the desired files, or restore
only the Windows operating system and applications.
Product Recovery
The Product Recovery program enables you to restore the computer settings to the factory default settings
through recovery media.
Attention: When you use the Product Recovery program to restore the computer settings, all the data you
have stored on the hard disk drive will be deleted and the computer settings will be restored to the factory
default settings. During the restoring process, you will be given the option to save one or more files currently
on the hard disk drive to other media before the data is deleted.
For more information about the recovery solutions, refer to the help information system of the programs.

Using passwords
You can set the following types of passwords to protect unauthorized access to your computer.
Attention: If you forget the password, there is no service procedure to reset the password. The system
board must be replaced for a scheduled fee.
• Power-on password: A power-on password protects the computer from being turned on by an
unauthorized person. If a power-on password has been set, the user must enter the password before
starting the operating system.
• Supervisor password: A supervisor password protects the system information stored in the BIOS
program. The user must enter the supervisor password to get access to the BIOS program and change
system configurations.
If you have set a password, you will be prompted to enter the password whenever you turn on the computer.

Power management
There are three power management modes to reduce power consumption: screen blank, sleep, and
hibernation.

Screen blank mode
In the following circumstances, the computer enters screen blank mode:
• The time set on the “Turn off monitor” timer on the Windows 7 operating system expires.
To end screen blank mode and resume normal operation, press any key.
• You have pressed Fn+F2.
To end screen blank mode and resume normal operation, press Fn+F2.

Sleep mode
When the computer enters sleep mode, the following events occur in addition to what occurs in screen
blank mode:
• The LCD is powered off.
• The hard disk drive is powered off.
• The microprocessor stops.
To enter sleep mode, press Fn+F1.
In certain circumstances, the computer automatically enters sleep mode:
• A “suspend time” has been set on the timer, and the user does not do any operation with the keyboard,
the hard disk drive, the parallel connector, or the diskette drive within that time.
• The battery status indicator blinks orange, indicating that the battery power is low.
To cause the computer to return from sleep mode and resume the operation, do one of the following:
• Press the Fn key.
• Open the LCD cover.
• Press the power button.
Also, when the time set on the resume timer elapses, the computer automatically returns from sleep mode
and resumes operation.
Note: The computer does not accept any input immediately after it enters sleep mode. Wait a few seconds
before taking any actions to reenter operation mode.

Hibernation mode
In hibernation mode, the following occurs:
• The system status, RAM, VRAM, and setup data are stored on the hard disk drive.
• The system is powered off.
If you have defined one of the following actions as the event that causes the computer to enter hibernation
mode, perform that action.
• Closing the lid
• Pressing the power button
Also, the computer automatically enters hibernation mode in either of the following circumstances:
• A “hibernation time” has been set on the timer, and the user does not do any operation with the keyboard,
the hard disk drive, the parallel connector, or the diskette drive within that time.
• The timer conditions are satisfied in suspend mode.

Hardware Maintenance Manual

When the power is turned on, the computer returns from hibernation mode and resumes operation. The
hibernation file in the boot record on the hard disk drive is read, and the system status is restored from the
hard disk drive.

Chapter 3. Related service information

Hardware Maintenance Manual

Chapter 4. Status indicators
This chapter presents the system status indicators that show the status of the computer.

Table 1. Status indicators
Indicator

Meaning

Caps lock status
indicator

White: Caps Lock mode is enabled. You can type all alphabetic characters (A-Z) in
uppercase directly. To enable or disable Caps Lock mode, press the Caps Lock key.

Numeric lock status
indicator

White: The separate numeric keypad on the keyboard is enabled. To enable or disable
the numeric keypad, press the Numeric Lock key.

Device access
status indicator

On: The hard disk drive or optical drive is reading or writing data.
Attention:
• When the indicator is on, do not put the computer into sleep mode or turn off the
computer.
• When the indicator is on, do not move the computer. Sudden physical shock might
cause drive errors.

Power and battery
status indicator

• Solid green: The battery charge level is between 80% and 100%, or the battery
discharge level is between 20% and 100%.
• Slow-blinking green: The battery charge level is between 20% and 80%, and
charging is continuing. When the battery charge level reaches 80%, the battery status
indicator stops blinking, but the charging might continue until the battery is 100%
charged.

Table 1. Status indicators (continued)
Indicator

Meaning
• Slow-blinking orange: The battery charge level is between 5% and 20%, and
charging is continuing. When the battery charge level reaches 20%, the blinking
color changes to green.
• Solid orange: The battery discharge level is between 5% and 20%.
• Fast-blinking orange: The battery charge or discharge level is 5% or less.
• Off: The battery is detached or the computer is powered off.

Hardware Maintenance Manual

Chapter 5. Fn key combinations
The following table describes the functions of Fn key combinations.
Table 2. Function key combinations
Key combination

Description

Fn+Esc

Changes the camera and audio settings.

Fn+F1

Puts the computer into sleep mode. To resume normal operation, press
the Fn key only.

Fn+F2

Enables or disables the backlight feature of the computer screen.

Fn+F3

Switches between the computer display and an external monitor.
Note: You also can use the Windows+P combination to switch between the
computer display and an external monitor.

Fn+F5

Enables or disables the built-in wireless networking features.

Fn+F6

Enables or disables the touch pad.

Fn+F8

Enables or disables the numeric keypad.

Fn+F9

Multimedia control: Play/Pause

Fn+F10

Multimedia control: Stop

Fn+F11

Multimedia control: Skip to the previous track

Fn+F12

Multimedia control: Skip to the next track

Fn+PgUp

Has the same function as the ScrLk key on a conventional keyboard.

Fn+PrtSc

Has the same function as the SysRq key on a conventional keyboard.

Fn+Home

Has the same function as the Pause key on a conventional keyboard.

Fn+End

Has the same function as the Break key on a conventional keyboard.

Fn+PgDn

Has the same function as the Insert key on a conventional keyboard.

Fn + up/down arrow

Increases or decreases the display brightness level.

Fn + left/right arrow

Decreases or increases the sound volume.

Hardware Maintenance Manual

Chapter 6. Locations
This chapter provides information about component locations.

Locating computer controls, connectors, and indicators
This topic introduces the locations of the computer controls, connectors, and indicators.

Front view

7
6
5

Figure 1. Front view
5 Power button

1 Camera
2 Status indicators

3 Touch pad and touch pad buttons

6 Recovery button
7 Speaker

4 Battery status indicator1
1

For the description of the indicators, see Chapter 4 “Status indicators” on page 35.

Right-side view

3
2

Figure 2. Right-side view
1 Combo audio jack

3 Optical drive (on some models)

2 USB connector

4 ac power adapter

Bottom and left-side view
1
2
3

5
8

Figure 3. Bottom and left-side view
1 Battery lock

6 Monitor connector

2 Battery pack

7 Ethernet connector

3 Battery latch

8 HDMI port

4 Security-lock slot

9 Universal Serial Bus (USB) connector

5 Fan louvers

10 Bottom slot cover1

The memory module, hard disk drive, and wireless card are located underneath the bottom slot cover.

Locating FRUs and CRUs
This chapter contains following lists of the service parts.
• “Major FRUs and CRUs” on page 42
40

Hardware Maintenance Manual

•
•

“LCD FRUs” on page 43
“Miscellaneous parts” on page 45
Notes:

• Each FRU is available for all types or models, unless otherwise specified.
• A CRU is identified by a single asterisk (*) or two asterisks (**) in the CRU ID column. An N in the CRU ID column
means that the part is not a CRU. A single asterisk (*) means that the part is a self-service CRU; two asterisks
(**) means that the part is an optional-service CRU.
CRU statement for customers:
You can resolve some problems with your product with a replacement part you can install yourself, called a
“Customer Replaceable Unit” or “CRU”. Some CRUs are designated as self-service CRUs and others are
designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For optional-service
CRUs, you can either install the CRU yourself or you can request that a Service Provider install the CRU according
to the warranty service for your product. If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU
information and replacement instructions are shipped with your product and are available from Lenovo at any time
upon request. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic
version of this manual can be found at http://www.lenovo.com/UserManuals. Follow the on-screen instructions to
find the manual for your product. You might be required to return the defective CRU. When return is required: (1)
return instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you
might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of
your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details.
Lenovo computers contain the following types of CRUs:
– Self-service CRUs: These CRUs unplug or are held by no more than two screws. Examples of these types
of CRUs include the ac power adapter, power cord, battery, and hard disk drive. Other self-service CRUs
depending on product design might include the memory module, wireless card, keyboard, and palm rest
with finger print reader and touch pad.
– Optional-service CRUs: These CRUs are isolated parts within the computer that are concealed by an access
panel that is typically secured by more than two screws. Once the access panel is removed, the specific
CRU is visible.

Chapter 6. Locations

Major FRUs and CRUs

23
19

18
hg

21
17
20
16

20
15

18
14
17
13

4
5

6
5

6
7
fe
b
a
8
7

12
16

c
b

8
d
c

9
11
15
11

d
e
14

Table 3. Major FRUs and CRUs
No.

FRU description

CRU ID

LCD unit

Keyboard bezel with touch pad

LED board with cable

Thermal module assembly

USB board

Battery pack

Hardware Maintenance Manual

Table 3. Major FRUs and CRUs (continued)
No.

FRU description

CRU ID

DC-in connector

Base cover

Optical drive

Input/output (I/O) board

Base cover

Hard disk drive

Speaker

Memory module

System board

Wireless LAN card

Microprocessor

Power board with cable

Keyboard

LCD FRUs
Lenovo E4325 uses a 355.6-mm (14-inch) high definition (HD) LCD.

Chapter 6. Locations

Table 4. LCD FRUs
No.

FRU description

CRU ID

LCD Bezel

Hinges

Camera

Right antenna

LCD cover

Left antenna

LCD panel

Hardware Maintenance Manual

Miscellaneous parts
Table 5. Miscellaneous parts
No.

FRU description

CRU ID

DC-in connector bracket

DC-in cable

Optical drive bracket

Optical drive bezel

Hard disk drive bracket

Touch pad cable

Power board cable

LCD cable

Looking up FRU information
For detailed FRU information, including part numbers, descriptions, and substitution part numbers, go to
http://www.lenovo.com/serviceparts-lookup.

Chapter 6. Locations

Hardware Maintenance Manual

Chapter 7. FRU replacement notices
This chapter presents notices related to removing and replacing parts. Read this chapter carefully before
replacing any FRU.
CRU statement for customers:
You can resolve some problems with your product with a replacement part you can install yourself, called
a “Customer Replaceable Unit” or “CRU”. Some CRUs are designated as self-service CRUs and others
are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For
optional-service CRUs, you can either install the CRU yourself or you can request that a Service Provider
install the CRU according to the warranty service for your product. If you intend on installing the CRU,
Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your
product and are available from Lenovo at any time upon request. You can find a list of CRUs for your
product in this Hardware Maintenance Manual. An electronic version of this manual can be found at
http://www.lenovo.com/UserManuals. Follow the on-screen instructions to find the manual for your product.
You might be required to return the defective CRU. When return is required: (1) return instructions, a prepaid
shipping label, and a container will be included with the replacement CRU; and (2) you might be charged for
the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of your receipt of
the replacement CRU. See your Lenovo Limited Warranty documentation for full details.

Important notice for replacing FRUs
Ensure that the computer has the latest BIOS version and device drivers installed before replacing any FRUs.
After you replace a system board, ensure that you install the latest BIOS version on the new system board.
Note: BIOS and device drivers are customer-installable. The BIOS and device drivers are available at
http://www.lenovo.com/support.
To download the latest BIOS, device drivers, and other software programs, do the following:
1. Go to http://www.lenovo.com/support.
2. Click Download Drivers & Software. The Web site offers three options to begin your search:
• Search by product number
• Search through the product auto-detect function
• Search by product category
3. Follow the instructions on the screen and install the necessary software.
4. Restart the computer.
Notes: You also can improve the computer performance by updating the BIOS utility to the latest version
from the Lenovo Support Web site http://www.lenovo.com/support.
• Before installing the latest utility, make sure that the battery is fully charged and an ac power adapter is
connected.
• Do not try to update the BIOS settings for any computer unless you have been trained and certified. An
untrained person runs the risk of damaging the computer.
• Do not turn off or put your computer into sleep or hibernation until the update has been completed.
Otherwise, the system board might be damaged.
When you are replacing and servicing FRUs, refer to the following instructions to avoid unnecessary expense:

• If you are instructed to replace a FRU but the replacement does not solve the problem, reinstall the
original FRU before you continue.
• Some computers have both a processor board and a system board. If you are instructed to replace either
the processor board or the system board, but the replacement does not solve the problem, reinstall the
original board, and then replace the other one.
• If an adapter or a device consists of more than one FRU, any of the FRUs might be the cause of the error.
Before replacing the adapter or device, remove the FRUs one by one to see if the symptoms change. Find
and replace only the FRU that changed the symptoms.

Screw notices
The Lenovo notebook computer uses special nylon-coated screws that have the following characteristics:
• They maintain tight connections.
• They do not easily come loose, even with shock or vibration.
• They are harder to tighten.
Do the following when you are servicing the computer:
•
•
•
•

Keep the screw kit in your tool bag.
It is recommended that you use new screws.
It is recommended that you use each screw only once.
Use a torque screwdriver if you have one.

Tighten screws as follows:
• Plastic to plastic
Turn an additional angle of 90 degrees after the screw head touches the surface of the plastic part.

• Logic card to plastic
Turn an additional angle of 180 degrees after the screw head touches the surface of the logic card.

Notes:
• Ensure that you use the correct screw. It is recommended that you use new screws for replacements. If
you have a torque screwdriver, firmly tighten all screws to the torque specified in the screw information
table for each step.
• Ensure that torque screw drivers are calibrated correctly following country specifications.

Hardware Maintenance Manual

Chapter 8. Removing and replacing a FRU
This chapter provides instructions on how to remove or replace a FRU.
CRU statement for customers:
You can resolve some problems with your product with a replacement part you can install yourself, called
a “Customer Replaceable Unit” or “CRU”. Some CRUs are designated as self-service CRUs and others
are designated as optional-service CRUs. Installation of self-service CRUs is your responsibility. For
optional-service CRUs, you can either install the CRU yourself or you can request that a Service Provider
install the CRU according to the warranty service for your product. If you intend on installing the CRU,
Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your
product and are available from Lenovo at any time upon request. You can find a list of CRUs for your
product in this Hardware Maintenance Manual. An electronic version of this manual can be found at
http://www.lenovo.com/UserManuals. Follow the on-screen instructions to find the manual for your product.
You might be required to return the defective CRU. When return is required: (1) return instructions, a prepaid
shipping label, and a container will be included with the replacement CRU; and (2) you might be charged for
the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of your receipt of
the replacement CRU. See your Lenovo Limited Warranty documentation for full details.

General guidelines
This chapter presents directions and drawings for use in removing and replacing a FRU. Be sure to observe
the following general rules:
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. Before replacing any FRU, review Chapter 7 “FRU replacement notices” on page 47.
3. Begin by removing any FRUs that have to be removed before replacing the failing FRU. Such FRUs are
listed in each FRU replacement section. Remove them in the order in which they are listed.
4. Follow the correct sequence in the steps for removing a FRU, as given in the drawings by the numbers
in square callouts.
5. When turning a screw, turn it in the direction as given by the arrow in the drawing.
6. When removing a FRU, move it in the direction as given by the arrow in the drawing.
7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain to
replacement.
8. When replacing a FRU, use the correct screw(s) as shown in the procedures.
9. Your computer might look differently from the illustrations in the later part of this chapter.
DANGER
Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets,
remove the battery pack, and then disconnect any interconnecting cables.
Attention: After replacing a FRU, do not turn on the computer until you have made sure 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, electrostatic discharge. Before
touching it, establish personal grounding by touching a ground point with one hand or by using an
electrostatic discharge (ESD) strap (P/N 6405959).
© Copyright Lenovo 2013

1010 Battery pack
Removal steps of battery pack
DANGER
Use only the battery specified in the parts list for your computer. Any other battery could ignite
or explode.
Unlock the spring-loaded battery latch 1 . Holding the manual battery latch in the unlocked position, remove
the battery pack in the direction shown by the arrow 2 .

1
2

When installing: Install the battery pack in the slot. Ensure that the battery latches are in the locked position.

1020 Bottom slot cover
For access, remove this FRU:
• “1010 Battery pack” on page 50

Hardware Maintenance Manual

Removal steps of bottom slot cover
Remove the screws 1 , and then remove the cover.
1
1

2
2

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, flat-head, nylon-coated (2)

Black

1.85 kgf-cm

1030 Optical drive
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
Removal steps of optical drive
Remove the screw 1 .
1

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, flat-head, nylon-coated (1)

Black

1.85 kgf-cm

Chapter 8. Removing and replacing a FRU

Insert a screwdriver into the screw hole and push the optical drive in the direction shown by the arrow 2 .
Then remove the optical drive.

2
3

Removal steps of optical drive bezel and optical drive bracket

Remove the screw 1 and then remove the optical drive bracket.

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, flat-head, nylon-coated (1)

Black

1.85 kgf-cm

1040 Memory module
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50

Hardware Maintenance Manual

Removal steps of memory module
Release the two latches on both edges of the socket at the same time in the direction shown by the arrows
1 , and then unplug the memory module in the direction shown by the arrow 2 .

1
2

When installing: Insert the notched end of the memory module into the memory slot at an angle of about 20
degrees. Press the memory module firmly, and pivot it downward until it snaps into place. Ensure that the
memory module is firmly installed in the slot and does not move easily.

1050 Hard disk drive assembly
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
Important notice for replacing a hard disk drive
Always try to run a low-level format before replacing a hard disk drive. This will cause all customer data on the
hard disk drive to be lost. Ensure that the customer has a current backup of the data before doing this task.
Attention:
• Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Improper
handling can cause damage and permanent loss of data.
• Before removing the drive, have the user make a backup copy of all the information on it if possible.
• Never remove the drive while the computer is operating or in suspend mode.
• The drive startup sequence in the computer you are servicing might have been changed. Be extremely
careful during write operations such as copying, saving, or formatting. If you select an incorrect drive,
data or programs can be overwritten.

Chapter 8. Removing and replacing a FRU

Removal steps of hard disk drive assembly
Remove the screw 1 , then pull the tab in the direction shown by the arrow 2 .

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, flat-head, nylon-coated (1)

Black

1.85 kgf-cm

Remove the hard disk drive assembly.

When installing: Ensure that the hard disk drive connector is attached firmly.
Removal steps of hard disk drive bracket
Remove the screws 1 .
1

1
1

Step

Screw (quantity)

Color

Torque

M3 × 4 mm, flat-head, nylon-coated (4)

Silver

4 kgf-cm

Hardware Maintenance Manual

Remove the hard disk drive bracket.
2

1060 PCI Express Mini Card for wireless LAN
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
Removal steps of PCI Express Mini Card for wireless LAN
In steps 1 , disconnect the cables from the card using the removal tool for the antenna connectors (P/N:
08K7159) or pick up the cables with your fingers and then gently disconnect them. Then remove the screw 2 .

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, flat-head, nylon-coated (1)

Black

1.85 kgf-cm

Chapter 8. Removing and replacing a FRU

Remove the PCI Express Mini Card for wireless LAN.

When installing: Plug the black cable into the main connector, and the white cable into the auxiliary
connector.

1080 Backup battery
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
Removal steps of backup battery
DANGER
Use only the battery specified in the parts list for your computer. Any other battery could ignite
or explode.
Detach the connector 1 , and then remove the battery pack in the direction shown by the arrow.

When installing: Ensure that the connector is attached firmly.

1090 Keyboard
For access, remove these FRUs in order:

Hardware Maintenance Manual

•
•

“1010 Battery pack” on page 50
“1020 Bottom slot cover” on page 50

Removal steps of keyboard
Remove the screws 1 .
1
1

When installing: Ensure that the screws have been firmly installed to secure the keyboard.
Step

Screw (quantity)

Color

Torque

M2.5 × 8 mm, flat-head, nylon-coated (3)

Black

4.0 kgf-cm

Push hard to unlatch the front side of the keyboard.

When installing: Ensure that the keyboard connector is firmly attached.

Chapter 8. Removing and replacing a FRU

Carefully detach the keyboard and then lift it up until you can see how it is connected.

Detach the keyboard connector, and then remove the keyboard.

6
5

When installing: Ensure that the connector is firmly attached.
58

Hardware Maintenance Manual

1100 Keyboard bezel
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
• “1030 Optical drive” on page 51
• “1090 Keyboard” on page 56
Removal steps of keyboard bezel
Remove the screws 1 and 2 that secure the keyboard bezel.
1
2

1
1
1

1
1

Step

Screw (quantity)

Color

Torque

M2.5 × 8 mm, flat-head, nylon-coated (11)

Black

4.0 kgf-cm

M2 × 3 mm, flat-head, nylon-coated (3)

Black

1.85 kgf-cm

Chapter 8. Removing and replacing a FRU

Remove the screw 3 .

Step

Screw (quantity)

Color

Torque

M2 × 6 mm, flat-head, nylon-coated (1)

Black

1.85 kgf-cm

Detach the connectors.

9
4
5

When installing: Ensure that all the connectors are firmly attached.

Hardware Maintenance Manual

Remove the keyboard bezel.

1110 LED board
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
• “1030 Optical drive” on page 51
• “1090 Keyboard” on page 56
• “1100 Keyboard bezel” on page 59
Removal steps of LED board
Peel off the mylar tape.

Chapter 8. Removing and replacing a FRU

Remove the LED board.
2

1120 Power board
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
• “1030 Optical drive” on page 51
• “1090 Keyboard” on page 56
• “1100 Keyboard bezel” on page 59
Removal steps of power board
Remove the screw 1 and then remove the power board.
1

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, flat-head, nylon-coated (1)

Black

1.85 kgf-cm

1140 Input/output (I/O) board
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
• “1030 Optical drive” on page 51
• “1090 Keyboard” on page 56
• “1100 Keyboard bezel” on page 59

Hardware Maintenance Manual

Removal steps of the input/output (I/O) board
Remove the screws 1 , and then disconnect the cable.

Step

Screw (quantity)

Color

Torque

M2 × 6 mm, flat-head, nylon-coated (2)

Black

1.85 kgf-cm

When installing: Ensure that the cable is firmly attached.

Chapter 8. Removing and replacing a FRU

Remove the input/output (I/O) board.

1150 System board assembly and USB board
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
• “1030 Optical drive” on page 51
• “1040 Memory module” on page 52
• “1050 Hard disk drive assembly” on page 53
• “1060 PCI Express Mini Card for wireless LAN” on page 55
• “1080 Backup battery” on page 56
• “1090 Keyboard” on page 56
• “1100 Keyboard bezel” on page 59
Important notice for replacing the system board
When replacing the system board, observe the following guidelines:
• Do not drop a system board on a bench top that has a hard surface, such as metal, wood, or composite.
• Do not apply any excessive force to a system board.
• Avoid rough handling of any kind.
• Avoid bending a system board or hard pushing to prevent cracking at each Ball Grid Array (BGA) chipset.
• When you put a system board down, be sure to put it only on a padded surface such as an ESD mat
or a corrugated conductive surface.
Locating major sensitive components on the system board
Attention: The following components mounted on a system board are extremely sensitive. Improper
handling of a system board can cause damage to the following components, and might cause a system
malfunction. When you service the system board, avoid any kind of rough handling.

Graphics chip (for discrete graphics models)

Microprocessor

Platform Controller Hub (PCH)
Hardware Maintenance Manual

For models with an integrated thermal module assembly

For models with a discrete thermal module assembly

Chapter 8. Removing and replacing a FRU

Removal steps of system board assembly and USB board
Remove the screws 1 , and then detach the connectors.

2
8
7
3
1

Step

Screw (quantity)

Color

Torque

M2 × 6 mm, flat-head, nylon-coated (2)

Black

1.85 kgf-cm

When installing: Ensure that all the connectors are firmly attached.
Remove the system board. Then disconnect the DC-in cable.

9
11

Hardware Maintenance Manual

Disconnect the connector, and then remove the USB board.

1
2

1160 Thermal module
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
• “1030 Optical drive” on page 51
• “1040 Memory module” on page 52
• “1050 Hard disk drive assembly” on page 53
• “1060 PCI Express Mini Card for wireless LAN” on page 55
• “1080 Backup battery” on page 56
• “1090 Keyboard” on page 56
• “1100 Keyboard bezel” on page 59
• “1150 System board assembly and USB board” on page 64
Removal steps of thermal module
Detach the fan connector 1 .

When installing: Ensure that the connector is firmly attached.

Chapter 8. Removing and replacing a FRU

Loosen the screws following the numerical order from 2 to 6 .

6
6
6
5
2
4
3

Carefully remove the fan assembly.
Note: Be careful not to damage the connector.

Hardware Maintenance Manual

When installing: Before you attach the thermal module to the system board, apply thermal grease, at an
amount of 0.2 grams, on the part marked a and b as shown in the following illustrations. Either too much or
too less application of grease can cause a thermal problem due to imperfect contact with a component.
For models with an integrated thermal module

For models with a discrete thermal module

1170 Microprocessor
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
• “1030 Optical drive” on page 51
• “1040 Memory module” on page 52
• “1050 Hard disk drive assembly” on page 53
• “1060 PCI Express Mini Card for wireless LAN” on page 55
• “1080 Backup battery” on page 56
• “1090 Keyboard” on page 56
• “1100 Keyboard bezel” on page 59
Chapter 8. Removing and replacing a FRU

•
•

“1150 System board assembly and USB board” on page 64
“1160 Thermal module” on page 67

Attention: The microprocessor is extremely sensitive. When you service the microprocessor, avoid any
kind of rough handling.
Removal steps of microprocessor
Rotate the head of the screw in the direction shown by the arrow 1 to release the lock, then remove the
microprocessor 2 .

When installing: Place the microprocessor above the microprocessor socket a , and then rotate the head of
the screw in the direction shown by the arrow b to secure the microprocessor.

1180 LCD unit
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
• “1030 Optical drive” on page 51
• “1040 Memory module” on page 52
• “1050 Hard disk drive assembly” on page 53
• “1060 PCI Express Mini Card for wireless LAN” on page 55
• “1080 Backup battery” on page 56
• “1090 Keyboard” on page 56
• “1100 Keyboard bezel” on page 59
• “1140 Input/output (I/O) board” on page 62
• “1150 System board assembly and USB board” on page 64

Hardware Maintenance Manual

Removal steps of LCD unit
Release the antenna cables from the cable guides. Then remove the screws 1 .

Step

Screw (quantity)

Color

Torque

M2.5 × 6 mm, flat-head, nylon-coated (4)

Silver

4.0 kgf-cm

When installing:
• Route the antenna cables along the cable guides. As you route the cables, make sure that they are
not subjected to any tension. Tension could cause the cables to be damaged by the cable guides,
or a wire to be broken.
• Ensure that the LCD connector is attached firmly and make sure that you do not pinch the antenna cables
when you attach the LCD assembly. Route the LCD cable along the cable guides.

Chapter 8. Removing and replacing a FRU

Remove the LCD unit in the direction shown by the arrow 2 .

1190 Speaker assembly
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
• “1030 Optical drive” on page 51
• “1040 Memory module” on page 52
• “1050 Hard disk drive assembly” on page 53
• “1060 PCI Express Mini Card for wireless LAN” on page 55
• “1080 Backup battery” on page 56
• “1090 Keyboard” on page 56
• “1100 Keyboard bezel” on page 59
• “1140 Input/output (I/O) board” on page 62
• “1150 System board assembly and USB board” on page 64
• “1180 LCD unit” on page 70

Hardware Maintenance Manual

Removal steps of speaker assembly
Remove the screws 1 . Then remove the speaker assembly 2 .

1
2

Step

Screw (quantity)

Color

Torque

M2.5 × 5.7 mm, flat-head, nylon-coated (2)

Black

4.0 kgf-cm

1200 DC-in connector and base cover
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1020 Bottom slot cover” on page 50
• “1030 Optical drive” on page 51
• “1040 Memory module” on page 52
• “1050 Hard disk drive assembly” on page 53
• “1060 PCI Express Mini Card for wireless LAN” on page 55
• “1080 Backup battery” on page 56
• “1090 Keyboard” on page 56
• “1100 Keyboard bezel” on page 59
• “1140 Input/output (I/O) board” on page 62
• “1150 System board assembly and USB board” on page 64
• “1180 LCD unit” on page 70
• “1190 Speaker assembly” on page 72

Chapter 8. Removing and replacing a FRU

Removal steps of DC-in connector and base cover
Remove the screws 1 , and then remove the DC-in connector in the direction shown by the arrow 2 .

Step

Screw (quantity)

Color

Torque

M2 × 3 mm, flat-head, nylon-coated (2)

Black

1.85 kgf-cm

Applying labels to the base cover
The new base cover is shipped with a kit containing labels of several kinds. Apply those labels listed when
you replace the base cover. For the labels which are not shipped with the new base cover, peel them off
from the old base cover, and adhere them to the new one.
Note: If you replace a part with the Windows Certificate of Authentication (COA) label 2 , return the old part
with the label attached to the customer. Otherwise, you can provide the customer with a letter, stating the
original location of the label on the computer and the information on the label, such as the part number,
serial number, and product key.
The following illustration shows the correct location of each label.

4
3
1
2

1 Wireless WAN IMEI barcode label

3 Rating label

2 Windows Certificate of Authentication (COA) label

4 Rating label

2010 LCD front bezel
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50

Hardware Maintenance Manual

•

“1180 LCD unit” on page 70

Removal steps of LCD front bezel
Remove the screws 1 .

Step

Screw (quantity)

Color

Torque

M2 × 3.5 mm, flat-head, nylon-coated (2)

Black

1.85 kgf-cm

Remove the LCD front bezel in the direction shown by the arrows 2 .

2
2

When installing: Ensure that all the latches are attached firmly. Then secure the bezel with the screws.

2020 Camera
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1180 LCD unit” on page 70
• “2010 LCD front bezel” on page 74

Chapter 8. Removing and replacing a FRU

Removal steps of camera
Remove the camera from the LCD cover as shown in the following illustration.
Note: The camera is stuck on the top center of the LCD cover.
1

When installing: Stick the camera to the top center of the LCD cover and adjust the placement to make sure
that the connector is attached firmly.

2030 LCD panel, LCD cable, and hinges
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1180 LCD unit” on page 70
• “2010 LCD front bezel” on page 74

Hardware Maintenance Manual

Removal steps of LCD panel and LCD cable
Remove the screws 1 . Then remove the LCD panel with hinges in the direction shown by the arrow.
1

Step

Screw (quantity)

Color

Torque

M2 × 4 mm, flat-head, nylon-coated (6)

White

1.85 kgf-cm

Remove the screws 3 . Then remove the hinges.
3
4

4
3

Step

Screw (quantity)

Color

Torque

M2 × 2.5 mm, flat-head, nylon-coated (4)

White

1.85 kgf-cm

Chapter 8. Removing and replacing a FRU

Remove the LCD cable.

2
1

When installing: Ensure that the cable is attached firmly.

2040 Antenna assembly and LCD rear cover
For access, remove these FRUs in order:
• “1010 Battery pack” on page 50
• “1180 LCD unit” on page 70
• “2010 LCD front bezel” on page 74
• “2020 Camera” on page 75
• “2030 LCD panel, LCD cable, and hinges” on page 76
Removal steps of antenna assembly and LCD rear cover
Release the antenna cables from the cable guides of the LCD rear cover assembly and from the hinges in
the direction shown by the arrows 1 .

Cable routing: Route the antenna cables along the cable guides and secure the antenna boards with
adhesive tapes. As you route the cables, make sure that they are not subjected to any tension. Tension
could cause the cables to be damaged by the cable guides, or a wire to be broken.

Hardware Maintenance Manual

Appendix A. Notices
Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult
your local Lenovo representative for information on the products and services currently available in your
area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that
Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service
that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user's
responsibility to evaluate and verify the operation of any other product, program, or service.
Lenovo may have patents or pending patent applications covering subject matter described in this
document. The furnishing of this document does not give you any license to these patents. You can send
license inquiries, in writing, to:
Lenovo (United States), Inc.
1009 Think Place - Building One
Morrisville, NC 27560
U.S.A.
Attention: Lenovo Director of Licensing
LENOVO PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow
disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply
to you.
This information could include technical inaccuracies or typographical errors. Changes are periodically
made to the information herein; these changes will be incorporated in new editions of the publication.
Lenovo may make improvements and/or changes in the product(s) and/or the program(s) described in this
publication at any time without notice.
The products described in this document are not intended for use in implantation or other life support
applications where malfunction may result in injury or death to persons. The information contained in this
document does not affect or change Lenovo product specifications or warranties. Nothing in this document
shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo
or third parties. All information contained in this document was obtained in specific environments and is
presented as an illustration. The result obtained in other operating environments may vary.
Lenovo may use or distribute any of the information you supply in any way it believes appropriate without
incurring any obligation to you.
Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not in
any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of
the materials for this Lenovo product, and use of those Web sites is at your own risk.
Any performance data contained herein was determined in a controlled environment. Therefore, the result
obtained in other operating environments may vary significantly. Some measurements may have been
made on development-level systems and there is no guarantee that these measurements will be the same
on generally available systems. Furthermore, some measurements may have been estimated through
extrapolation. Actual results may vary. Users of this document should verify the applicable data for their
specific environment.

Trademarks
The following terms are trademarks of Lenovo in the United States, other countries or both:
Lenovo
OneKey
The Lenovo logo
Microsoft and Windows are trademarks of the Microsoft group of companies.
Other company, product, or service names may be the trademarks or service marks of others.

Hardware Maintenance Manual

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