Lenovo 100e 2nd Gen Laptop Hardware Maintenance Manual PDF

Lenovo 100e 2nd Gen Hardware Maintenance Manual

Contents

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 Checking the ac power adapter . . . . . . . . 22 Checking the battery and operational charging . . 22 Lenovo 100e 2nd Gen CRU list . . . . . . . . . 23

Chapter 3. Locating computer controls, connectors, and indicators . . . . . . . . . . . . . . . 25 Front . . . . . . . . . . . . . . . . . . . 25 Base . . . . . . . . . . . . . . . . . . . 26 Left . . . . . . . . . . . . . . . . . . . 27 Right . . . . . . . . . . . . . . . . . . . 28 Bottom . . . . . . . . . . . . . . . . . . 29

Chapter 4. Identifying FRUs (CRUs) . . . . . . . . . . . . . . . . . 31 All FRUs (CRUs) for Lenovo 100e 2nd Gen . . . . 31

Chapter 5. Removing a FRU or CRU . . . . . . . . . . . . . . . . . . 35 General guidelines. . . . . . . . . . . . . . 35 Remove the lower case . . . . . . . . . . . . 35 Remove the battery pack . . . . . . . . . . . 36 Remove the wireless module. . . . . . . . . . 38 Remove the M.2 solid-state drive . . . . . . . . 39 Remove the speakers . . . . . . . . . . . . 40 Remove the RTC battery . . . . . . . . . . . 41 Remove the power board . . . . . . . . . . . 42 Remove the system board. . . . . . . . . . . 43 Remove the upper case (with keyboard) . . . . . 44 Disassemble the LCD module . . . . . . . . . 46

Remove the LCD panel . . . . . . . . . . 46 Remove the camera board. . . . . . . . . 47 Remove the hinges and LCD cable . . . . . 48

Trademarks . . . . . . . . . . . . . . . . . li

Copyright Lenovo 2020

i

First Edition (January 2020)

LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration GSA contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS- 35F-05925.

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 2020 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 100e 2nd Gen Hardware Maintenance Manual

To determine whether there are any potentially unsafe conditions, use the following checklist at the beginning of every service task. Begin the checks with the power off, and the power cord disconnected.

Checklist:

1. Check exterior covers for damage (loose, broken, or sharp edges). 2. Power off the computer. Disconnect the power cord. 3. Check the power cord for:

a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground continuity for 0.1 ohm or less between the external ground pin and the frame ground.

b. The power cord should be the authorized type specified for your computer. Go to: http:// www.lenovo.com/serviceparts-lookup

c. Insulation must not be frayed or worn. 4. Check for cracked or bulging batteries.

5. Remove the cover. 6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo

alterations.

7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.

8. Check for worn, frayed, or pinched cables. 9. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered

with.

Handling devices that are sensitive to electrostatic discharge Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.

Notes: 1. Use product-specific ESD procedures when they exceed the requirements noted here. 2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.

When handling ESD-sensitive parts: Keep the parts in protective packages until they are inserted into the product. Avoid contact with other people. Wear a grounded wrist strap against your skin to eliminate static on your body. Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when

you are wearing a wrist strap. Use a grounded work mat to provide a static-free work surface. The mat is especially useful when

handling ESD-sensitive devices. Select a grounding system, such as those listed below, to provide protection that meets the specific

service requirement.

Note: The use of a grounding system to guard against ESD damage is desirable but not necessary. Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground. When working on a double-insulated or battery-operated system, use an ESD common ground or

reference point. You can use coax or connector-outside shells on these systems. Use the round ground prong of the ac plug on ac-operated computers.

Chapter 1. Safety information 3

Grounding requirements Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.

Safety notices (multilingual translations) The safety notices in this section are provided in the following languages: English Arabic Brazilian Portuguese French German Hebrew Japanese Korean Spanish Traditional Chinese

DANGER

DANGER

DANGER

4 Lenovo 100e 2nd Gen Hardware Maintenance Manual

DANGER

DANGER

DANGER

DANGER

DANGER

Chapter 1. Safety information 5

6 Lenovo 100e 2nd Gen Hardware Maintenance Manual

PERIGO

PERIGO

PERIGO

Chapter 1. Safety information 7

PERIGO

PERIGO

PERIGO

PERIGO

PERIGO

8 Lenovo 100e 2nd Gen Hardware Maintenance Manual

DANGER

DANGER

DANGER

DANGER

Chapter 1. Safety information 9

DANGER

DANGER

DANGER

DANGER

VORSICHT

10 Lenovo 100e 2nd Gen Hardware Maintenance Manual

VORSICHT

VORSICHT

VORSICHT

VORSICHT

Chapter 1. Safety information 11

VORSICHT

VORSICHT

VORSICHT

12 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Chapter 1. Safety information 13

14 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Chapter 1. Safety information 15

16 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Chapter 1. Safety information 17

18 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Chapter 1. Safety information 19

20 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Chapter 2. General checkout

This chapter contains the following topics:

Before you go to the checkout instructions, ensure that you read the following important notes.

Important notes:

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 visiting https://support.lenovo.com/partslookup.

A FRU should not be replaced because of a single, unreproducible failure. Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU.

Be careful not to replace a nondefective FRU.

What to do first When you return a FRU, you must include the following information in the parts exchange form or parts return form that you attach to it:

1. Name and phone number of service technician 2. Date of service 3. Date on which the machine failed

4. Date of purchase 5. Failure symptoms, error codes appearing on the display, and beep symptoms 6. Procedure index and page number in which the failing FRU was detected

7. Failing FRU name and part number 8. Machine type, model number, and serial number 9. Customer's name and address

Note: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer. Following is a list of some common items that are not covered under warranty and some symptoms that might indicate that the system was subjected to stress beyond normal use.

Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following list:

The following are not covered under warranty: LCD panel cracked from the application of excessive force or from being dropped Scratched (cosmetic) parts Distortion, deformation, or discoloration of the cosmetic parts Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force

Copyright Lenovo 2020 21

Damage caused by liquid spilled into the system Damage caused by the improper insertion of a personal-computer card (PC card) or the installation of an

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

The following symptoms might indicate damage caused by non-warranted activities: Missing parts might be a symptom of 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.

Checking the ac power adapter You are here because the computer fails only when the ac power adapter is used. If the power problem occurs only when the docking station or the port replicator is used, replace the

docking station or the port replicator. If the system status indicator does not blink three times when an ac power source is connected, 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 the battery and operational charging

on page 22.

Note: Noise from the ac power adapter does not always indicate a defect.

Checking the USB-C type ac power adapter

To check the USB-C type ac power adapter, do the following:

1. Connect the computer to a power outlet and turn on the computer.

2. Start Lenovo Vantage program, and locate the Power section. The ac power adapter information is displayed.

Ensure that you use the USB-C type ac power adapter that is shipped with the computer to provide enough power to the computer. Otherwise a message will be displayed, prompting you that the computer will not be charged or will be charged slowly.

Checking the battery and operational charging

Checking the battery

This system supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized builder. The system does not support unauthorized batteries or batteries designed for other systems. If an unauthorized battery or a battery designed for another systems is installed, the system will not charge.

Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use.

Move your pointer to the battery-status icon in the Windows notification area to check the battery status. The battery-status icon displays the percentage of battery power remaining and how long you can use your computer before you must charge the battery.

22 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Checking the operational charging

To check whether the battery charges properly during operation, do the following:

1. Discharge the battery until the remained battery power is less than 50%.

2. Perform operational charging. Click the battery status icon in the Windows notification area to display detailed battery information. If it indicates that the battery is not charging, replace the battery.

3. Check the battery status again. If the same error still exists, replace the system board.

Lenovo 100e 2nd Gen CRU list Model: Lenovo 100e 2nd Gen

MT: 81M8, 82GJ

CRU Type

ac power adapter self-service

power cord self-service

Chapter 2. General checkout 23

24 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Chapter 3. Locating computer controls, connectors, and indicators

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

Front

1. Front camera 2. Microphone

3. Screen

Copyright Lenovo 2020 25

Base

26 Lenovo 100e 2nd Gen Hardware Maintenance Manual

1. Touchpad

Left

1. Battery/Charging status indicator 2. USB-C connector / Power connector

3. Always On USB 3.1 connector Gen 1 4. HDMI connector

5. Audio connector

Chapter 3. Locating computer controls, connectors, and indicators 27

Right

1. Power button 2. USB 3.1 connector Gen 1

3. MicroSD card slot 4. Mini security-lock slot

28 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Bottom

1. Speakers

Chapter 3. Locating computer controls, connectors, and indicators 29

30 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Chapter 4. Identifying FRUs (CRUs)

All FRUs (CRUs) for Lenovo 100e 2nd Gen The exploded illustrations help Lenovo service technicians identify FRUs or CRUs that they may need to replace when servicing a customers computer.

1

2

3

6

8

7

5

4

5

9

10

11

a

b c

d

Figure 1. Lenovo 100e 2nd Gen exploded view

Copyright Lenovo 2020 31

Table 1. FRU (CRU) categories

No. FRU (CRU) description Self-service CRU Optional-service CRU

1 LCD module No No

2 Upper case (with keyboard) No No

3 System board No No

4 RTC battery No No

5 USB brackets No No

6 Wireless module No No

7 M.2 solid-state drive (SSD) No No

8 Power board No No

9 Speakers No No

10 Battery pack No No

11 Lower case No No

a Lenovo factory recovery USB key*

Yes No

b Power cord Yes No

c ac power adapter Yes No

d Miscellaneous parts kits No No

* for selected models

32 Lenovo 100e 2nd Gen Hardware Maintenance Manual

1

2

5

4

6

3

Figure 2. LCD module exploded view

Table 2. FRU categories for the LCD module

No. FRU (CRU) description Self-service CRU Optional-service CRU

1 LCD bezel No No

2 LCD panel No No

3 Hinges No No

4 LCD cable No No

5 Camera board No No

6 LCD cover No No

Chapter 4. Identifying FRUs (CRUs) 33

34 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Chapter 5. Removing a FRU or CRU

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.

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. If screws are missing, look up the Lenovo

parts numbers by visiting https://support.lenovo.com/partslookup for replacement screws and order them through the Lenovo CRM system.

7. When replacing the base cover, reapply all labels that come with the replacement base cover. If some original labels are not included with the replacement base cover, peal them off from the original base cover and paste them on the replacement base cover.

DANGER

Before removing any FRU or CRU, shut down the computer and unplug all power cords from electrical outlets.

Attention: After replacing a FRU, do not turn on the computer until you have ensured that all screws, springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.

Attention: The system board is sensitive to and can be damaged by ESD. Before touching it, establish personal grounding by touching a ground point with one hand or by using an ESD strap (P/N 6405959).

Remove the lower case Make sure the computer has been shut down before servicing the computer.

Step 1. Place the computer upside down on a flat surface.

Step 2. Remove 9 screws.

Copyright Lenovo 2020 35

Figure 3. Remove 9 screws

Screw specifications Number of screws

M2.5 x 6 9

Step 3. Remove the lower case.

Figure 4. Remove the lower case

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

Remove the lower case on page 35

Step 1. Detach the battery connector and power board cable connector from the system board.

36 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Figure 5. Detach the connectors

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

Step 2. Remove 4 screws.

Figure 6. Remove 4 screws

Screw specifications Number of screws

M2.0 x 4 4

Step 3. Take out the battery pack.

Figure 7. Take out the battery pack

Chapter 5. Removing a FRU or CRU 37

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

Remove the lower case on page 35

Remove the battery pack on page 36

Step 1. Detach the main and auxiliary antenna cable connectors.

Figure 8. Detach the connectors

Step 2. Remove 1 screw.

Figure 9. Remove 1 screw

Screw specifications Number of screws

M2.0 x 3 1

Step 3. Remove the wireless module by pulling it away from the slot.

38 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Figure 10. Remove the wireless module

Remove the M.2 solid-state drive Make sure the following FRUs (or CRUs) have been removed.

Remove the lower case on page 35

Remove the battery pack on page 36

Step 1. Remove 1 screw.

Figure 11. Remove 1 screw

Screw specifications Number of screws

M2.0 x 3 1

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

Chapter 5. Removing a FRU or CRU 39

Figure 12. Remove the M.2 solid-state drive

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

Remove the lower case on page 35

Remove the battery pack on page 36

Step 1. Detach the speaker connector from the system board.

Figure 13. Detach the connector

Step 2. Remove 2 screws. Then release the speaker cable from the cable guides.

Figure 14. Remove 2 screws

40 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Screw specifications Number of screws

M2.0 x 3 2

Step 3. Remove the speakers.

Figure 15. Remove the speakers

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

Remove the lower case on page 35

Remove the battery pack on page 36

Step 1. Detach the RTC battery connector from the system board.

Figure 16. Detach the connector

Step 2. Remove the RTC battery.

Chapter 5. Removing a FRU or CRU 41

Figure 17. Remove the RTC battery

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

Remove the lower case on page 35

Remove the battery pack on page 36

Step 1. Remove 4 screws.

Figure 18. Remove 4 screws

Screw specifications Number of screws

M2.0 x 4 4

Step 2. Remove the power board and bracket.

42 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Figure 19. Remove the power board and bracket

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

Remove the lower case on page 35

Remove the battery pack on page 36

Remove the wireless module on page 38

Remove the M.2 solid-state drive on page 39

Remove the speakers on page 40

Remove the RTC battery on page 41

Step 1. Detach the LCD cable connector, keyboard cable connector and touchpad cable connector from the system board.

Figure 20. Detach the connectors

Step 2. Remove 7 screws.

Chapter 5. Removing a FRU or CRU 43

Figure 21. Remove 7 screws

Screw specifications Number of screws

M2.0 x 4 7

Step 3. Carefully remove the system board and bracket.

Figure 22. Remove the system board and bracket

Remove the upper case (with keyboard) Make sure the following FRUs (CRUs) have been removed. Also make sure the antenna cable connectors and LCD cable connector have been detached from the wireless module and system board.

Remove the lower case on page 35

Remove the battery pack on page 36

Step 1. Remove 6 screws that secure the hinges to the upper case.

44 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Figure 23. Remove 6 screws

Screw specifications Number of screws

M2.5 x 5 6

Step 2. Open the hinges.

Figure 24. Open the hinges

Step 3. From the upper edge, slowly and carefully lift up the upper case.

Chapter 5. Removing a FRU or CRU 45

Figure 25. Remove the upper case (with keyboard)

Attention: Do not pull up the upper case before detaching the antenna cable connectors and LCD cable connector. Otherwise the cables may be damaged.

Disassemble the LCD module The LCD module as a whole is not a FRU. Instead, it contains FRUs as its components. Before disassembling the LCD module, make sure it has been detached from the upper case. Refer to Remove the upper case (with keyboard) on page 44 for instructions.

Remove the LCD panel Step 1. Insert a pry piece under the lower inner side of the LCD bezel and then carefully pull the LCD bezel

outwards. Repeat this action along the inner edges of the LCD bezel until all hooks that secure the LCD bezel are detached.

Figure 26. Pull the inner sides of the LCD bezel

46 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Step 2. Remove 4 screws.

Figure 27. Remove 4 screws

Screw specifications Number of screws

M2.0 x 3 4

Step 3. Lift up the LCD panel, and then detach the LCD cable connector.

Figure 28. Remove the LCD panel

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

Remove the lower case on page 35

Remove the battery pack on page 36

Remove the upper case (with keyboard) on page 44

Remove the LCD panel on page 46

Step 1. Detach the camera connector.

Chapter 5. Removing a FRU or CRU 47

Figure 29. Detach the connector

Step 2. Remove the camera board.

Figure 30. Remove the camera board

Remove the hinges and LCD cable Make sure the following FRUs (or CRUs) have been removed.

Remove the lower case on page 35

Remove the battery pack on page 36

Remove the upper case (with keyboard) on page 44

Remove the LCD panel on page 46

Remove the camera board on page 47

Step 1. Remove 10 screws.

48 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Figure 31. Remove 10 screws

Screw specifications Number of screws

M2.0 x 3 10

Step 2. Remove the hinges.

Figure 32. Remove the hinges

Step 3. Remove the LCD cable.

Figure 33. Remove the LCD cable

Chapter 5. Removing a FRU or CRU 49

50 Lenovo 100e 2nd Gen Hardware Maintenance Manual

Trademarks LENOVO and LENOVO logo are trademarks of Lenovo.

Other company, product, or service names may be trademarks or service marks of others.