Contents

Lenovo 100S Chromebook-11IBY Laptop Hardware Maintenance Manual PDF

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Summary of Content for Lenovo 100S Chromebook-11IBY Laptop Hardware Maintenance Manual PDF

Hardware Maintenance Manual

Lenovo 100S Chromebook-11IBY

Hardware Maintenance Manual

Lenovo 100S Chromebook-11IBY

First Edition (August 2015)

Copyright Lenovo 2015.

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 . . . . . 19 What to do first . . . . . . . . . . . . . . 19 Checking the ac power adapter . . . . . . . . 20

Chapter 3. Idetifying FRUs (CRUs) . . 21 All FRUs (CRUs) for Lenovo 100S Chromebook-11IBY. . . . . . . . . . . . . 21 Lenovo part numbers of replacement FRUs or CRUs . . . . . . . . . . . . . . . . . . 22

Chapter 4. Removing a FRU or CRU . 25 General guidelines . . . . . . . . . . . . . 25 Remove the upper case and the battery. . . . . 25 Remove the I/O board. . . . . . . . . . . . 28

Remove the WLAN & Bluetooth combo module. . 29 Remove the speakers . . . . . . . . . . . . 30 Remove the system board and the DC-in cable . . 31 Remove the touch pad module . . . . . . . . 33 Disassemble the LCD module. . . . . . . . . 34

Remove the LCD bezel. . . . . . . . . . 34 Remove the LCD panel, the hinges, the LCD cable and the camera module . . . . . . . 35

Appendix A. Features, controls, and connectors . . . . . . . . . . . . . . 37

Appendix B. Specifications . . . . . . 39

Appendix C. Lenovo part numbers of screws used on Lenovo 100S Chromebook-11IBY . . . . . . . . . . 41

Appendix D. Lenovo part numbers of ac adapters and power cords . . . . 43

Appendix E. Label locations. . . . . . 45 Trademarks . . . . . . . . . . . . . . . . xlvii

Copyright Lenovo 2015 iii

iv Hardware Maintenance Manual

Chapter 1. Safety information

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

General safety Follow these rules to ensure general safety: Observe good housekeeping in the area of the machines during and after maintenance. When lifting any heavy object:

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

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

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

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

Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe. Before you start the machine, make sure that other service technicians and the customer's personnel are

not in a hazardous position. Place removed covers and other parts in a safe place, away from all personnel, while you are servicing

the machine. Keep your tool case away from walk areas so that other people will not trip over it. Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your

sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it. Insert the ends of your necktie or scarf inside clothing or fasten it with a non-conductive clip, about 8

centimeters (3 inches) from the end. Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.

Attention: Metal objects are good electrical conductors. Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using

solvents, or working in any other conditions that might be hazardous to your eyes. After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device

that is worn or defective. Reinstall all covers correctly before returning the machine to the customer. Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan

louvers or cover them with labels or stickers.

Electrical safety Observe the following rules when working on electrical equipment.

Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock. Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical

accident occurs, you can then operate the switch or unplug the power cord quickly. Do not work alone under hazardous conditions or near equipment that has hazardous voltages. Disconnect all power before:

Performing a mechanical inspection Working near power supplies

Copyright Lenovo 2015 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 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

DANGER

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DANGER

DANGER

DANGER

DANGER

Chapter 1. Safety information 5

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PERIGO

PERIGO

PERIGO

PERIGO

Chapter 1. Safety information 7

PERIGO

PERIGO

PERIGO

PERIGO

DANGER

DANGER

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DANGER

DANGER

DANGER

DANGER

DANGER

Chapter 1. Safety information 9

DANGER

VORSICHT

VORSICHT

VORSICHT

VORSICHT

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VORSICHT

VORSICHT

VORSICHT

VORSICHT

Chapter 1. Safety information 11

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Chapter 1. Safety information 13

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Chapter 1. Safety information 15

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Chapter 1. Safety information 17

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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 referring to the FRU parts list.

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

Be careful not to replace a nondefective FRU.

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

1. Name and phone number of service technician

2. Date of service

3. Date on which the machine failed

4. Date of purchase

5. Failure symptoms, error codes appearing on the display, and beep symptoms

6. Procedure index and page number in which the failing FRU was detected

7. Failing FRU name and part number

8. Machine type, model number, and serial number

9. Customer's name and address

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

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

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

Copyright Lenovo 2015 19

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 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.

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.

Pin Voltage (V dc)

1 +20

2 0

3 Ground(20V) 1

3

2

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:

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.

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Chapter 3. Idetifying FRUs (CRUs)

All FRUs (CRUs) for Lenovo 100S Chromebook-11IBY The exploded illustrations help Lenovo service technicians identify FRUs or CRUs that they may need to replace when servicing a customers computer.

Refer to Lenovo part numbers of replacement FRUs or CRUs on page 22 if you need to look up Lenovo part numbers for a particular FRU or CRU.

1

2

3 8

9

4

5

6

7

Figure 1. Lenovo 100S Chromebook-11IBY exploded view

Table 1. FRU (CRU) categories

No. FRU (CRU) category CRU ID

1 Upper case N

2 Battery pack N

3 System board N

4 Speakers N

5 DC-in cable N

6 Lower case N

7 Touch pad module N

8 WLAN & Bluetooth combo module N

9 I/O board N

ac power adapter *

Copyright Lenovo 2015 21

Note: A customer replaceable unit (CRU) is identified by a single asterisk (*) or two asterisks (**) in the CRU ID column. A single asterisk (*) means that the part is a Self-service CRU; two asterisks (**) means that the part is an Optional-service CRU. A Letter N in the CRU ID column means that the part is not a CRU.

1

3

2

4

6

5

Figure 2. LCD module exploded view

Table 2. FRU categories for the LCD module

No. FRU (CRU) category CRU ID

1 LCD bezel N

2 Hinges N

3 LCD panel N

4 LCD cable N

5 Camera module N

6 LCD base cover N

Lenovo part numbers of replacement FRUs or CRUs When servicing a customers computer, Lenovo service technicians may use part numbers listed in the following tables to order replacement parts through Lenovo CRM (customer relationship management) system.

Table 3. Part numbers for FRUs (CRUs)

No. FRU (CRU) category Parts description Lenovo part number

1 Upper case

Upper Case Q 100SChromebook W/KBUS 5CB0K04630

UpperCaseQ 100SChromebookW/KB EF-C 5CB0K13758

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Table 3. Part numbers for FRUs (CRUs) (continued)

Upper Case Q 100S Chromebook UK 5CB0K48449

Upper Case Q 100S Chromebook SW 5CB0K48442

Upper Case Q 100S Chromebook FIN 5CB0K48417

Upper Case Q 100S Chromebook RU 5CB0K48461

Upper Case Q 100S Chromebook GR 5CB0K48436

Upper Case Q 100S Chromebook FR 5CB0K48463

Upper Case Q 100S Chromebook SWD 5CB0K48451

Upper Case Q 100S Chromebook ND 5CB0K48455

2 Battery pack

N22 LG L15L2PB0 7.6V34Wh2cell bty 5B10J46559

N22 SP/A L15M2PB0 7.5V34Wh2cell bty 5B10J46561

N22 SP/C L15M2PB0 7.6V34Wh2cell bty 5B10J46560

3 System board

MB Q 100S Chromebook N28402G16G 5B20K11775

MB Q 100S Chromebook N28404G32G 5B20K17769

MB Q 100S Chromebook N28402G32G 5B20K57706

4 Speakers

Speaker Q 100S Chromebook 5SB0K11764

5 DC-in cable

DC-IN Cable Q 100S Chromebook 5C10K11770

6 Lower case

Lower Case Q 100S Chromebook 5CB0K11774

7 Touch pad module

Touchpad ModuleQ100S Chromebook 5T60K11766

8 WLAN & Bluetooth combo module

Intel 7260 2x2AC+BT PCIE M.2 WLAN V2 20200552

9 I/O board

IO BD Q 100S Chromebook W/Cable 5C50K13759

Note: Refer to Appendix D Lenovo part numbers of ac adapters and power cords on page 43 to look up the Lenovo part numbers of ac power adapters and power cords.

Table 4. Part numbers for LCD FRUs

No. FRU (CRU) category Spare parts description Lenovo part number

1 LCD bezel

LCD Bezel Q 100S Chromebook BK 5B30K11763

2 Hinges

Hinge Q 100S Chromebook R+L 5H50K11769

3 LCD panel

Chapter 3. Idetifying FRUs (CRUs) 23

Table 4. Part numbers for LCD FRUs (continued)

IV M116NWR6 R0 HDT AG S NB 5D10K04184

CMI N116BGE EA2 HD AG S LED1 NB LCD 5D10H34460

BOE NT116WHM-N21 HD AG S NB 5D10H34773

AUO B116XTN02.3 2B HD AG S NB 5D10H11015

4 LCD cable

LCD Cable Q 100S Chromebook 5C10K11772

5 Camera module

Camera Q 100S Chromebook 5C20K11765

6 LCD base cover

LCD Cover Q 100S Chromebook BK 5CB0K11767

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Chapter 4. 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 in Appendix C Lenovo part numbers of screws used on Lenovo 100S Chromebook-11IBY on page 41 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. Refer to Appendix E Label locations on page 45 for the layout of labels on the back side of the 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 upper case and the battery Step 1. Remove the ten screws 1 .

Copyright Lenovo 2015 25

a a

a a

a

a

a

a

a

a

Figure 3. Remove 10 screws

Step 2. Turn over the Chromebook and open the LCD cover.

Step 3. Use a pry bar to slide through the grooves between the upper case and the base cover 2 , and then slowly lift the upper case until the keyboard socket appears 3 .

b

a

c

Figure 4. Lift the upper case

Step 4. Detach the battery connector 4 .

d

Figure 5. Detach the battery connector

26 Hardware Maintenance Manual

Note: The Chromebook will be powered on automatically when LCD cover is open. Therefore, please make sure that the battery connector is detached from the system board before doing the following operations.

Step 5. Detach the touchpad cable 5 .

Step 6. Open the keyboard socket 6 , pull out the keyboard cable 7 , and then remove the upper case in the direction shown by arrow 8 .

fg

h

e

Figure 6. Detach the touchpad cable and the keyboard cable

Step 7. Remove the three screws 9 and then remove the battery pack in the direction shown by arrow 10 .

i

i i

j

Figure 7. Remove the battery

Table 5. Screw specifications removing the upper case and the battery

Screw label

Specifications Color Torque

1 M2 6mm, flat-head, nylon-coated Black 1.85 +/- 0.15kgf-cm

9 M2 3mm, flat-head, nylon-coated Silver 1.85 +/- 0.15kgf-cm

Refer to Table 3 Part numbers for FRUs (CRUs) on page 22 to look up the Lenovo part numbers of the following replacement parts:

Chapter 4. Removing a FRU or CRU 27

Upper case

battery pack

Remove the I/O board Make sure the following FRUs (CRUs) have been removed:

Remove the upper case and the battery on page 25

Step 1. Open the two sockets 1 and then pull out the cable 2 that connects the I/O board to the system board.

a b

Figure 8. Remove the USB cable

Step 2. Remove the USB cable in the direction shown by arrow 3 .

c

Figure 9. Remove the USB cable

Step 3. Remove the two screws 4 and then remove the I/O board in the direction shown by arrow 5 .

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dd

e

Figure 10. Remove the I/O board

Table 6. Screw specifications removing the I/O board

Screw label

Specifications Color Torque

4 M2 3mm, flat-head, nylon-coated Black 1.85 +/- 0.15kgf-cm

Refer to Table 3 Part numbers for FRUs (CRUs) on page 22 to look up the Lenovo part numbers of replacement I/O board.

Remove the WLAN & Bluetooth combo module Make sure the following FRUs (CRUs) have been removed:

Remove the upper case and the battery on page 25

Step 1. Disconnect the white and black cables from the WLAN & Bluetooth combo module 1 .

aa

Figure 11. Disconnect antenna cables

Step 2. Remove the screw 2 .

Chapter 4. Removing a FRU or CRU 29

b

Figure 12. Remove one screw

Step 3. Pull out the WLAN & Bluetooth combo module in the direction shown by the arrow 3 .

c

Figure 13. Pull out the WLAN & Bluetooth combo module

Table 7. Screw specifications removing the WLAN & Bluetooth combo module

Screw label

Specifications Color Torque

2 M2 3mm, flat-head, nylon-coated Black 1.85 +/- 0.15kgf-cm

Refer to Table 3 Part numbers for FRUs (CRUs) on page 22 to look up the Lenovo part numbers of replacement WLAN & Bluetooth combo modules.

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

Remove the upper case and the battery on page 25

Step 1. Detach the speakers cable from the system board 1 , remove the four rubbers that fix the speakers 2 , and then remove the speakers in the direction shown by arrow 3 .

30 Hardware Maintenance Manual

b

c

b

b

a b

c

Figure 14. Remove the speakers

Refer to Table 3 Part numbers for FRUs (CRUs) on page 22 to look up the Lenovo part numbers of replacement speakers.

Remove the system board and the DC-in cable Remove the upper case and the battery on page 25

Remove the I/O board on page 28

Remove the WLAN & Bluetooth combo module on page 29

Remove the speakers on page 30

Step 1. Remove the four screws 1 .

aa

aa

Figure 15. Remove the LCD module

Step 2. Detach the LCD module from the lower case 2 .

Chapter 4. Removing a FRU or CRU 31

b

b

Figure 16. Remove the LCD module

Step 3. Detach the DC-in cable connector 3 and the LCD cable connector 4 .

d

c

Figure 17. Remove the system board

Step 4. Remove the six screws 5 , and then remove the system board in the direction shown by arrow 6 .

e e e

e

e

ef

Figure 18. Remove the system board

Step 5. Remove the DC-in cable 7 .

32 Hardware Maintenance Manual

g

Figure 19. Remove the DC-in cable

Table 8. Screw specifications removing the LCD module

Screw label

Specifications Color Torque

5 M2 3 mm, flat-head, nylon-coated Black 1.85 +/- 0.15kgf-cm

Refer to Table 3 Part numbers for FRUs (CRUs) on page 22 to look up the Lenovo part numbers of the following replacement parts:

System board

DC-in cable

Base cover

Remove the touch pad module Remove the upper case and the battery on page 25

Step 1. Open the socket 1 , pull out the touch pad cable 2 , and then peel off the touch pad cable from the upper case.

b a

Figure 20. Remove the touch pad module

Step 2. Remove the three screws 4 , and then remove the touch pad holder in the direction shown by arrow 5 .

Chapter 4. Removing a FRU or CRU 33

d d

d

e

Figure 21. Remove the touch pad holder

Step 3. Remove the three screws 6 , and then remove the touch pad bracket in the direction shown by arrow 7 .

f

f f

g

Figure 22. Remove the touch pad bracket

Table 9. Screw specifications removing the LCD module

Screw label

Specifications Color Torque

4 M2.5 2 mm, flat-head, nylon-coated Black 3.7 4.0 kgf-cm

6 M2.5 5 mm, flat-head, nylon-coated Black 3.7 4.0 kgf-cm

Refer to Table 3 Part numbers for FRUs (CRUs) on page 22 to look up the Lenovo part numbers of the following replacement parts:

Touch pad module

Disassemble the LCD module The LCD module as a whole is not a FRU. It contains FRUs as its components. Before disassembling the LCD module, make sure it has been detached from the base cover. Refer to Remove the system board and the DC-in cable on page 31 for instructions.

Remove the LCD bezel Step 1. Insert a pry bar between one inner side of the LCD bezel and the LCD panel 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.

Step 2. Remove the LCD bezel 1 .

34 Hardware Maintenance Manual

a

a

a

a

Figure 23. Remove the LCD bezel

Refer to Table 4 Part numbers for LCD FRUs on page 23 to look up the Lenovo part numbers of the following replacement parts:

LCD bezel

Remove the LCD panel, the hinges, the LCD cable and the camera module

Remove the LCD bezel on page 34

Step 1. Remove the four screws 1

a

a

a

a

Figure 24. Remove 4 screws and lift up the LCD panel

Step 2. Check the back side of the LCD panel for the LCD connector and then unplug the LCD cable 2 .

b

Figure 25. Disconnect the LCD cable from the back of the LCD panel

Step 3. Remove the LCD panel.

Step 4. Remove the eight screws 3 and then remove the hinges in the direction shown by arrow 4 .

Chapter 4. Removing a FRU or CRU 35

c

c

d

c

c c

c c c

d

Figure 26. Remove the hinges

Step 5. Remove the LCD cable 5 and then peel off the camera module 6 .

e

f

Figure 27. Remove the LCD cable and the camera module

Table 10. Screw specifications removing the LCD panel

Screw label

Specifications Color Torque

1 M2 3mm, flat-head, nylon-coated Silvery 1.7 2.0 kgf * cm

Refer to Table 4 Part numbers for LCD FRUs on page 23 to look up the Lenovo part numbers of the following replacement parts:

LCD panel

Hinges

LCD cable

Camera module

36 Hardware Maintenance Manual

Appendix A. Features, controls, and connectors

Figure 28. Lenovo 100S Chromebook11IBY features and connectors

Table 11. Lenovo 100S Chromebook11IBY features and connectors

No. Feature or connector

1 Camera

2 Microphone hole

3 Shortcut keys

4 Touch pad

5 AC power adapter

6 DC-in indicator

7 HDMI connector

8 USB 3.0 connector

9 Memory card (SD/SDHC/SDXC/MMC) slot

10 Combo audio jack

11 Kensington lock slot

12 USB 2.0 connector

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Appendix B. Specifications

Lenovo 100S Chromebook-11IBY

MTM 80QN

Dimensions 300 mm x 209 mm x 19.9mm

Weights 1.2 Kg

CPU Intel Baytrail-M

Swivel camera 1280 x 720 pixels

LCD

Size 11.6 inch

Resolutions 1366 x 768 pixels

Backlight type LED

Memory

Type/speed DDR3L

Capacity 2 GB/4 GB

Expandable No

Storage

Type eMMC

Form factor eMMC

Capacity 16 GB/32GB

Battery pack

Type Li-Polymer

Cells and capacity 2 cells, 34 Wh

ac adapter

Input 100 240 V ac, 50 60 Hz

Output 20V dc

Power 45 W

I/O ports

Video/audio HDMI (Type D) x 1

Audio Combo audio jack x 1, speakers x 2, microphone hole x 2

USB USB 3.0 x 1, USB 2.0 x 1

Memory card SD/SDHC/SDXC/MMC reader x 1

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Appendix C. Lenovo part numbers of screws used on Lenovo 100S Chromebook-11IBY

Table 12. Part numbers of N21 screws

Screw description Part number

Screw Pack Q 100S Chromebook 5S10K11762

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Appendix D. Lenovo part numbers of ac adapters and power cords

Table 13. Part numbers for FRUs (CRUs)

CRU category Parts description Lenovo part number

ac power adapter

Delta ADP-45DW AA 20V2.25A adapter 5A10H43620

Delta ADP-45DW JA 20V2.25A adapter 5A10H43623

Delta ADP-45DW BA 20V2.25A adapter 5A10H43630

Delta ADP-45DW DA 20V2.25A adapter 5A10H43621

Delta ADP-45DW HA 20V2.25A adapter 5A10H43627

Delta ADP-45DW GA 20V2.25A adapter 5A10H43617

Delta ADP-45DW EA 20V2.25A adapter 5A10H43626

Delta ADP-45DW CA 20V2.25A adapter 5A10H43632

Delta ADP-45DW KA 20V2.25A adapter 5A10H43624

Liteon PA-1450-55LN 20V2.25A adapter 5A10H42921

Liteon PA-1450-55LG 20V2.25A adapter 5A10H42920

Liteon PA-1450-55LL 20V2.25A adapter 5A10H42923

Liteon PA-1450-55LK 20V2.25A adapter 5A10H42917

Liteon PA-1450-55LI 20V2.25A adapter 5A10H42926

Liteon PA-1450-55LR 20V2.25A adapter 5A10H42919

Liteon PA-1450-55LS 20V2.25A adapter 5A10H42922

Liteon PA-1450-55LU 20V2.25A adapter 5A10H42925

Liteon PA-1450-55LZ 20V2.25A adapter 5A10H42918

Chicony ADL45WCA 20V2.25A adapter 5A10H43629

Chicony ADL45WCB 20V2.25A adapter 5A10H43618

Chicony ADL45WCC 20V2.25A adapter 5A10H43625

Chicony ADL45WCD 20V2.25A adapter 5A10H43631

Chicony ADL45WCK 20V2.25A adapter 5A10H43619

Chicony ADL45WCE 20V2.25A adapter 5A10H43633

Chicony ADL45WCF 20V2.25A adapter 5A10H43622

Chicony ADL45WCG 20V2.25A adapter 5A10H43628

Chicony ADL45WCH 20V2.25A adapter 5A10H43616

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Appendix E. Label locations

ba

c d e

g

f

Figure 29. Label layout on the back side of the base cover

Table 14. All base cover labels

Label Label description

a Rating label

b Rating label (print)

c Malaysia label

d Indonesia label (Wlan)

e Indonesia label (Rating label)

f Korean label

g Brazil label

c d e (aligned) SIRIM label

Israel label

KCC label

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