HP Chromebook14
Contents
1. Description Spare part number For use only on computer models equipped with WWAN capability includes Media Card Reader 744781 001 slot and WWAN module slot For use only on computer models not equipped with WWAN capability includes Media Card 740151 001 Reader slot Before removing the USB board follow these steps 1 Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer Component replacement procedures 35 4 Remove the keyboard top cover see Keyboard top cover on page 23 5 Disconnect the battery cable from the system board see Speakers on page 26 fey NOTE When replacing the USB board be sure that the WWAN module see WWAN module on page 37 is removed from the defective USB board and installed on the replacement USB board Remove the USB board 1 Disconnect the WWAN antenna cables 1 from the terminals on the WWAN module NOTE The WWAN antenna cable labeled 5 connects to the WWAN module Main terminal labeled 5 The WWAN antenna cable labeled 6 connects to the WWAN module Aux terminal labeled 6 2 Release the ZIF connector 2 to which the USB board cable is attached and then disconnect the USB board2. USB 3 0 ports 2 Each USB 3 0 port connects an optional USB device such as a keyboard mouse external drive printer or USB hub 4 5 Audio out headphone jack Audio in microphone combo jack Power light Connects optional powered stereo speakers headphones earbuds a headset or a television audio cable Also connects an optional headset microphone This jack does not support optional microphone only devices WARNING To reduce the risk of personal injury adjust the volume before using headphones earbuds or a headset For additional safety information see the Regulatory Safety and Environmental Notices NOTE When a device is connected to the jack the computer speakers are disabled NOTE Be sure that the device cable has a 4 conductor connector that supports both audio out headphone and audio in microphone e White Computer is on e Blinking white Computer is in sleep mode e Off Computer is off Chapter 2 External component identification Right side Item Component Description 1 Power connector Connects an AC adapter 2 AC adapter light e White AC adapter is attached e Amber Battery is charging e Blinking white The AC adapter is connected and battery capacity is low e Off Running on battery power 3 Memory card reader Reads optional memory cards that store manage share or access information To insert a card 1 Hold the card label side up with connectors f
3. pm b oO H Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system Disconnect the power from the computer by unplugging the power cord from the computer Disconnect all external devices from the computer Remove the keyboard top cover see Keyboard top cover on page 23 Disconnect the battery cable from the system board see Speakers on page 26 A0 Chapter 4 Removal and replacement procedures preliminary requirements Remove the display assembly 1 Disconnect the display panel cable 1 from the system board 2 Disconnect the WLAN antenna cables 2 from the terminals on the WLAN module NOTE The WLAN antenna cable labeled 1 connects to the WLAN module Main terminal labeled 1 The WLAN antenna cable labeled 2 connects to the WLAN module Aux terminal labeled 2 3 Release the WLAN antenna cables from the routing channel 3 built into the base enclosure 4 Disconnect the WWAN antenna cables 4 from the terminals on the WWAN module fey NOTE The WWAN antenna cable labeled 5 connects to the WWAN module Main terminal labeled 5 The WWAN antenna cable labeled 6 connects to the WWAN module Aux GPS terminal labeled 6 5 Release the WWAN antenna cables from the routing channel 5 built into the base enclosure 6 Remove the two Phillip
4. 001 WWAN Antenna Kit includes WWAN left and right antenna cables and transceivers 740171 001 WLAN Antenna Kit includes WLAN left and right antenna cables and transceivers 740172 001 Keyboard top cover for use in the United States includes keyboard cable TouchPad and TouchPad cable 740172 031 Keyboard top cover for use in the United Kingdom and Singapore includes keyboard cable TouchPad and TouchPad cable 740172 041 Keyboard top cover for use in Germany includes keyboard cable TouchPad and TouchPad cable 740172 051 Keyboard top cover for use in France includes keyboard cable TouchPad and TouchPad cable 740172 B31 Keyboard top cover for use in the Netherlands includes keyboard cable TouchPad and TouchPad cable 740172 DB1 Keyboard top cover for use in Canada includes keyboard cable TouchPad and TouchPad cable 740172 DH1 Keyboard top cover for use in Denmark Finland and Norway includes keyboard cable TouchPad and TouchPad cable 741055 001 Rubber Kit for use on computer models with ocean turquoise finish 741284 005 HP cr3124 HSPA Mobile Broadband Module 741670 001 Display bezel in snow white finish 741671 001 Display bezel in ocean turquoise finish 741727 001 45 W HP Smart adapter non PFC RC 3 wire 4 5 mm 742097 001 System board equipped with an Intel Celeron 2955U 1 40 GHz processor 2 0 MB L3 cache 15 W 2 0 GB of system memory and a graphics subsystem with UMA memory includes replacement thermal mate
5. 4 Remove the power connector cable Reverse this procedure to install the power connector cable Hall sensor board Description Spare part number Hall sensor board includes cable 740149 001 Before removing the hall sensor board follow these steps 1 Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the keyboard top cover see Keyboard top cover on page 23 5 Disconnect the battery cable from the system board see Speakers on page 26 Remove the hall sensor board 1 Release the ZIF connector 1 to which the hall sensor board cable is attached and then disconnect the hall sensor board cable from the USB board 2 Remove the Phillips PM2 5x4 5 screw 2 that secures the hall sensor board to the base enclosure Component replacement procedures 39 Remove the hall sensor board 3 2 I I I I Ta eg KO Gd k Ka S Ott Reverse this procedure to install the hall sensor board Display assembly NOTE The display assembly is spared at the subcomponent level only For more display assembly spare part information see the individual removal subsections Before removing the display assembly follow these steps 1
6. If it is necessary to replace the display hinges a Remove the following screws that secure the display hinges to the display enclosure 1 Two Phillips PM2 0x2 5 screws 2 Four Phillips PM2 0x3 0 broad head screws 3 Two Phillips PM2 5x3 5 screws Component replacement procedures 47 b Remove the display hinges 4 The display hinges are included in the Display Hinge Kit spare part number 740147 001 t 12 If it is necessary to replace the WLAN antenna cables and transceivers a Detach the WLAN antenna transceivers 1 from the display enclosure The WLAN antenna transceivers are attached to the display enclosure with double sided adhesive b Release the WLAN antenna cables 2 from the routing clips built into the bottom edge of the display enclosure 48 Chapter 4 Removal and replacement procedures preliminary requirements c Remove the WLAN antenna cables and transceivers 3 The WLAN antenna cables and transceivers are included in the WLAN Antenna Kit spare part number 740171 001 yl 13 If it is necessary to replace the WWAN antenna cables and transceivers a Detach the WWAN antenna transceivers 1 from the display enclosure The WWAN antenna transceivers are attached to the display enclosure with double sided adhesive b Release the WWAN antenna cables 2 from the routing clips and channel built into the top edge and right side of the display enclosure Component replacement proce
7. Improper cable placement can damage the computer Cables must be handled with extreme care to avoid damage Apply only the tension required to unseat or seat the cables during removal and insertion Handle cables by the connector whenever possible In all cases avoid bending twisting or tearing cables Be sure that cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced Handle flex cables with extreme care these cables tear easily Drive handling A CAUTION Drives are fragile components that must be handled with care To prevent damage to the computer damage to a drive or loss of information observe these precautions Before removing or inserting a hard drive shut down the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system Before handling a drive be sure that you are discharged of static electricity While handling a drive avoid touching the connector Before removing a diskette drive or optical drive be sure that a diskette or disc is not in the drive and be sure that the optical drive tray is closed Handle drives on surfaces covered with at least one inch of shock proof foam Avoid dropping drives from any height onto any surface After removing a hard drive an optical drive or a diskette drive place it in a static proof bag Avoid exposing an internal hard drive to produc
8. Store reusable ESD sensitive parts from assemblies in protective packaging or nonconductive foam Use transporters and conveyors made of antistatic belts and roller bushings Be sure that mechanized equipment used for moving materials is wired to ground and that proper materials are selected to avoid static charging When grounding is not possible use an ionizer to dissipate electric charges Workstation guidelines Follow these grounding workstation guidelines Cover the workstation with approved static shielding material Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment Use conductive field service tools such as cutters screw drivers and vacuums When fixtures must directly contact dissipative surfaces use fixtures made only of static safe materials Keep the work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam Handle ESD sensitive components parts and assemblies by the case or PCM laminate Handle these items only at static free workstations Avoid contact with pins leads or circuitry Turn off power and input signals before inserting or removing connectors or test equipment Grounding guidelines 21 Equipment guidelines Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation e When seated wear a wrist strap connected to a grounded system Wrist straps are flexible str
9. adapter dongle spare partnumber 14 15 Rubber Kit spare part numbers 12 16 17 S Screw Kit spare part number 14 15 security cable slot 6 security product description 2 sensor product description 1 service considerations cables 19 connectors 19 plastic parts 18 serviceability product description 2 SIM slot 7 SIM slot board removal 31 spare part number solid state drive precautions 19 removal 56 spare part numbers 56 11 16 31 11 15 Speaker Kit spare part number 11 15 26 speakers location 8 removal 26 spare part number 11 15 26 specifications 58 system board removal 52 spare part numbers 11 16 52 T tools required 18 TouchPad components 5 TouchPad zone 5 transporting guidelines 21 U USB 2 0 port 7 USB 3 0 port 6 USB board removal 35 spare part numbers 17 35 11 15 v vents 8 video product description 1 WwW webcamera light 3 webcamera location 3 webcamera microphone module removal 45 spare part number wireless antenna location 3 4 removal 48 49 spare part numbers 49 50 wireless networking product description 1 WLAN Antenna Kit spare part number 13 16 49 WLAN module removal 32 spare partnumber 11 15 32 workstation guidelines 21 WWAN Antenna Kit spare part number 13 16 50 13 15 46 13 16 Index 63 WWAN module removal 37 spare part number 11 16 37 64 Index
10. cable from the system board 3 Remove the Phillips PM2 5x4 5 screw 3 that secures the USB board to the base enclosure 4 Remove the USB board 4 and cable al K Esc Bi s I Ki d Reverse this procedure to install the USB board 36 Chapter 4 Removal and replacement procedures preliminary requirements WWAN module Description Spare part number HP cr3124 HSPA Mobile Broadband Module 741284 005 Before removing the WWAN module follow these steps 1 Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the keyboard top cover see Keyboard top cover on page 23 5 Disconnect the battery cable from the system board see Speakers on page 26 AA CAUTION To prevent an unresponsive system replace the wireless module only with a wireless module authorized for use in the computer by the governmental agency that regulates wireless devices in your country or region If you replace the module and then receive a warning message remove the module to restore device functionality and then contact technical support Remove the WWAN module 1 Remove the Phillips PM2 0x2 5 screw 1 that secures the WWAN module to the USB board The WWAN module tilts u
11. i SS SS d 9 g u Reverse this procedure to install the heat sink Solid state drive Description Spare part number 32 GB 740159 001 16 GB 740158 001 Before removing the solid state drive follow these steps 1 Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the keyboard top cover see Keyboard top cover on page 23 and then remove the following components a Speakers see Speakers on page 26 Battery see Battery on page 28 c WLAN module see WLAN module on page 32 d Hall sensor board see Hall sensor board on page 39 e System board see System board on page 52 Remove the solid state drive 1 Turn the system board upside down with the rear toward you 2 Remove the Phillips PM2 0x2 5 1 that secures the solid state drive to the system board The solid state drive tilts up 56 Chapter 4 Removal and replacement procedures preliminary requirements 3 Remove the solid state drive 2 by pulling the drive away from the slot at an angle Reverse this procedure to install the solid state drive Component replacement procedures 57 5 Specifications 58 Metric U S Dimensions Width 34 44 cm 13 56 in D
12. whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system Disconnect the power from the computer by unplugging the power cord from the computer Disconnect all external devices from the computer Remove the keyboard top cover see Keyboard top cover on page 23 Remove the speakers see Speakers on page 26 po pom p P Remove the battery see Battery on page 28 Remove the SIM slot board 1 Release the ZIF connector 1 to which the SIM slot board cable is attached and then disconnect the SIM slot board cable from the USB board 2 Remove the Phillips PM2 5x4 5 screw 2 that secure the SIM slot board to the computer Component replacement procedures 31 3 Remove the SIM slot board 3 and cable Reverse this procedure to install the SIM slot board WLAN module Description Spare part number Atheros AR9462 802 1 1a b g n 2x2 Bluetooth 4 0 Combo Adapter 676786 005 Before removing the WLAN module follow these steps D Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer A Remove the keyboard top cover see Keyboard top cover on page 23 5 Disconnect the battery cable from the s
13. 741670 001 2 Webcamera microphone module includes double sided adhesive 740152 001 3 14 0 in BV HD WLED SVA display panel 740155 001 4 Display Hinge Kit includes left and right display hinges 740147 001 5 WWAN Antenna Kit includes WWAN left and right antenna cables 740170 001 and transceivers 6 WLAN Antenna Kit includes WLAN left and right antenna cables and transceivers 740171 001 Display assembly components 13 Item Component Spare part number 7 Display panel cable includes webcamera microphone module cable 740145 001 8 Display enclosure In ocean turquoise finish for use only on computer models equipped with 740136 001 WWAN capability In peach coral finish for use only on computer models equipped with 740137 001 WWAN capability In snow white finish for use only on computer models equipped with 740139 001 WWAN capability Miscellaneous parts Component Spare part number AC adapter 65 W HP Smart adapter non PFC EM 3 wire 4 5 mm 714657 001 65 W HP Smart adapter non PFC S 3P 3 wire 4 5 mm 710412 001 45 W HP Smart adapter non PFC RC 3 wire 4 5 mm 741727 001 HP HDMI to VGA adapter 701943 001 HP RJ 45 to USB adapter dongle 539614 001 Power cord 3 pin black 1 83 m For use in Australia 490371 011 For use in Europe 49037 1 021 For use in India 49037 1 D61 For use in North America 49037 1 001 For use in the United Kingdom and Singapore 4
14. 9037 1 031 Screw Kit 740156 001 14 Chapter 3 Illustrated parts catalog Sequential part number listing Spare part number Description 49037 1 001 Power cord for use in North America 3 pin black 1 83 m 49037 1 011 Power cord for use in Australia 3 pin black 1 83 m 490371 021 Power cord for use in Europe 3 pin black 1 83 m 490371 031 Power cord for use in the United Kingdom and Singapore 3 pin black 1 83 m 49037 1 D61 Power cord for use in India 3 pin black 1 83 m 539614 001 HP RJ 45 to USB adapter dongle 676786 005 Atheros AR9462 802 1 1a b g n 2x2 Bluetooth 4 0 Combo Adapter 701943 001 HP HDMI to VGA adapter 710412 001 65 W HP Smart adapter non PFC S 3P 3 wire 4 5 mm 714657 001 65 W HP Smart adapter non PFC EM 3 wire 4 5 mm 738392 005 A cell 51 WHr 3 42 AHr Li ion battery 740136 001 Display enclosure in ocean turquoise finish 740137 001 Display enclosure in peach coral finish 740139 001 Display enclosure in snow white finish 740144 001 Base enclosure in ocean turquoise finish for use only on computer models equipped with WWAN capability 740145 001 Display panel cable includes webcamera microphone module cable 740146 001 Heat sink includes replacement thermal material 740147 001 Display Hinge Kit includes left and right display hinges and left 740148 001 Power connector cable 740149 001 Fan includes cable 740150 001 D
15. AN module slot For use only on computer models not equipped with WWAN capability includes 740151 001 Media Card Reader slot 13 HP cr3124 HSPA Mobile Broadband Module 741284 005 14 Power connector cable 740148 001 15 Base enclosure In ocean turquoise finish for use only on computer models equipped with 740144 001 WWAN capability In peach coral finish for use only on computer models equipped with 740161 001 WWAN capability In snow white finish for use only on computer models equipped with 740163 001 WWAN capability In ocean turquoise finish for use only on computer models not equipped with 740164 001 WWAN capability In peach coral finish for use only on computer models not equipped with 740165 001 WWAN capability Computer major components 1 12 ltem Component Spare part number In snow white finish for use only on computer models not equipped with 740167 001 WWAN capability Rubber Kit not illustrated includes base enclosure rubber feet and display bezel rubber screw covers For use on computer models with ocean turquoise finish 741055 001 For use on computer models with peach coral finish 743914 001 For use on computer models with snow white finish 743915 001 Chapter 3 Illustrated parts catalog Display assembly components Item Component Spare part number 1 Display bezel In ocean turquoise finish 741671 001 In peach coral finish 740150 001 In snow white finish
16. HP Chromebook 4 Maintenance and Service Guide IMPORTANT This document is intended for HP authorized service providers only Copyright 2013 Hewlett Packard Development Company L P Bluetooth is a trademark owned by its proprietor and used by Hewlett Packard Company under license Intel and Celeron are U S registered trademarks of Intel Corporation SD Logo is a trademark of its proprietor The information contained herein is subject to change without notice The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein First Edition September 2013 Document Part Number 741336 001 Product notice This guide describes features that are common to most models Some features may not be available on your computer Software terms By installing copying downloading or otherwise using any software product preinstalled on this computer you agree to be bound by the terms of the HP End User License Agreement EULA If you do not accept these license terms your sole remedy is to return the entire unused product hardware and software within 14 days for a refund subject to the refund policy of your place of purchase For any further information or to request a full refund of the com
17. Speaker Kit includes left and right speakers and cables 740154 001 Before removing the speakers follow these steps D Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system Disconnect the power from the computer by unplugging the power cord from the computer Disconnect all external devices from the computer Remove the keyboard top cover see Keyboard top cover on page 23 U A Q N Remove the battery see Battery on page 28 Remove the speakers 1 Disconnect the battery cable from the system board 2 Disconnect the speaker cable 1 from the system board 3 Release the speaker cable from the clips 2 built into the base enclosure 4 Remove the two Phillips PM2 5x4 5 screws 3 that secure the speakers to the base enclosure 26 Chapter 4 Removal and replacement procedures preliminary requirements 5 Remove the speakers 4 Reverse this procedure to install the speakers Component replacement procedures 27 Battery Description Spare part number 4 cell 51 WHr 3 42 AHr Li ion battery includes cable 738392 005 Before removing the battery follow these steps 1 Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect the power from the computer by unplu
18. acing the slot Insert the card into the slot and then press in on the card until it is firmly seated To remove a card 1 Press in on the card until it pops out 4 USB 2 0 port Connects an optional USB device such as a keyboard mouse external drive printer or USB hub 5 SIM slot Supports a wireless subscriber identity module SIM select models only Right side 7 Bottom 8 Item Component Description 1 Vents 2 Enable airflow to cool internal components NOTE The computer fan starts up automatically to cool internal components and prevent overheating It is normal for the internal fan to cycle on and off during routine operation 2 Speakers 2 Produce sound Chapter 2 External component identification 3 Illustrated parts catalog Locating the serial number product number and model number The serial number and product number of your tablet are located on the left edge of the tablet The model number of your tablet is located on the back of your tablet You may need the information when you travel internationally or when you contact support Oh Lummen Medel o LU WI Ph KO KKK Warranty yyy wee bpCom D Locating the serial number product number and model number 9 Computer major components 10 Item Component Spare part number 1 Display assembly The display assembly is spared at the subcomponent level only For more display
19. and circuitry Handle electronic components as little as possible If you remove a component place it in an electrostatic safe container The following table shows how humidity affects the electrostatic voltage levels generated by different activities AA CAUTION A product can be degraded by as little as 700 V Typical electrostatic voltage levels Relative humidity Event 10 40 55 Walking across carpet 35 000 V 15 000 V 7 500 V Walking across vinyl floor 12 000 V 5 000 V 3 000 V Motions of bench worker 6 000 V 800 V 400 V Removing DIPS from plastic tube 2 000 V 700 V 400 V Removing DIPS from vinyl tray 11 500 V 4 000 V 2 000 V Removing DIPS from Styrofoam 14 500 V 5 000 V 3 500 V Removing bubble pack from PCB 26 500 V 20 000 V 7 000 V Packing PCBs in foam lined box 21 000 V 11 000 V 5 000 V 20 Chapter 4 Removal and replacement procedures preliminary requirements Packaging and transporting guidelines Follow these grounding guidelines when packaging and transporting equipment To avoid hand contact transport products in static safe tubes bags or boxes Protect ESD sensitive parts and assemblies with conductive or approved containers or packaging Keep ESD sensitive parts in their containers until the parts arrive at static free workstations Place items on a grounded surface before removing items from their containers Always be properly grounded when touching a component or assembly
20. aps with a minimum of one megohm 10 resistance in the ground cords To provide proper ground wear a strap snugly against the skin at all times On grounded mats with banana plug connectors use alligator clips to connect a wrist strap e When standing use foot straps and a grounded floor mat Foot straps heel toe or boot straps can be used at standing workstations and are compatible with most types of shoes or boots On conductive floors or dissipative floor mats use foot straps on both feet with a minimum of one megohm resistance between the operator and ground To be effective the conductive must be worn in contact with the skin The following grounding equipment is recommended to prevent electrostatic damage e Antistatic tape e Antistatic smocks aprons and sleeve protectors e Conductive bins and other assembly or soldering aids e Nonconductive foam e Conductive computerop workstations with ground cords of one megohm resistance e Static dissipative tables or floor mats with hard ties to the ground e Field service kits e Static awareness labels e Material handling packages e Nonconductive plastic bags tubes or boxes e Metal tote boxes e Electrostatic voltage levels and protective materials The following table lists the shielding protection provided by antistatic bags and floor mats Material Use Voltage protection level Antistatic plastics Bags 1 500 V Carbon loaded plastic Floor mats 7 500 V M
21. assembly spare part information see Display assembly components on page 13 2 Keyboard top cover includes keyboard cable TouchPad and TouchPad cable For use in Canada 740172 DB1 For use in Denmark Finland and Norway 740172 DH1 For use in France 740172 051 For use in Germany 740172 041 Chapter 3 Illustrated parts catalog Item Component Spare part number For use in the Netherlands 740172 B31 For use in the United Kingdom and Singapore 740172 031 For use in the United States 740172 001 3 Speaker Kit includes left and right speakers and cables 740154 001 4 SIM slot board includes cable 740168 001 5 Atheros AR9462 802 11a b g n 2x2 Bluetooth 4 0 Combo Adapter 676786 005 6 Hall sensor board includes cable 740169 001 7 Fan includes cable 740149 001 8 4 cell 51 WHr 3 42 AHr Li ion battery includes cable 738392 005 9 System board equipped with an Intel Celeron 2955U 1 40 GHz processor 2 0 MB L3 cache 15 W and a graphics subsystem with UMA memory includes replacement thermal material Includes 4 0 GB of system memory 740160 001 Includes 2 0 GB of system memory 742097 001 10 Solid state drive 32 GB 740159 001 16 GB 740158 001 11 Heat sink includes replacement thermal material 740146 001 12 USB board includes cable For use only on computer models equipped with WWAN capability includes Media 74478 1 001 Card Reader slot and WW
22. ce coupler flexible cord and wall plug must bear a T mark and registration number in accordance with the Japanese Dentori Law The flexible cord must be Type VCT or VCTF 3 conductor 1 00 mm conductor size The wall plug must be a two pole grounding type with a Japanese Industrial Standard C8303 7 A 125 V configuration The flexible cord must be Type RVV 3 conductor 0 75 mm conductor size Power cord set fittings appliance coupler and wall plug must bear the certification mark of the agency responsible for evaluation in the country or region where it will be used The flexible cord must be Type VCTF 3 conductor 0 75 mm conductor size Power cord set fittings appliance coupler and wall plug must bear the certification mark of the agency responsible for evaluation in the country or region where it will be used Chapter 6 Power cord set requirements 7 Recycling When a non rechargeable or rechargeable battery has reached the end of its useful life do not dispose of the battery in general household waste Follow the local laws and regulations in your area for battery disposal HP encourages customers to recycle used electronic hardware HP original print cartridges and rechargeable batteries For more information about recycling programs see the HP Web site at http www hp com recycle 6l Index A AC adapter light 7 AC adapter spare part numbers 15 16 antenna location 3 4 removal 48 49 spare
23. computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer A Remove the keyboard top cover see Keyboard top cover on page 23 and then remove the following components a Speakers see Speakers on page 26 b Battery see Battery on page 28 c WLAN module see WLAN module on page 32 54 Chapter 4 Removal and replacement procedures preliminary requirements d Hall sensor board see Hall sensor board on page 39 e System board see System board on page 52 Remove the heat sink 1 Turn the system board upside down with the rear toward you 2 Following the 1 through 4 sequence stamped into the heat sink loosen the four Phillips captive screws 1 that secure the heat sink to the system board 3 Remove the heat sink 2 fy NOTE Due to the adhesive quality of the thermal material located between the heat sink and the system board components it may be necessary to move the heat sink from side to side to detach it Ey NOTE The thermal material must be thoroughly cleaned from the surfaces of the system board 1 and the heat sink 2 each time the heat sink is removed Replacement thermal material is included with the heat sink and system board spare part kits Component replacement procedures 55
24. dels only area networks The antennas are not visible from the outside of the computer For optimal transmission keep the areas immediately around the antennas free from obstructions For wireless regulatory notices see the section of the Regulatory Safety and Environmental Notices that applies to your country or region Button Item Component Description 1 Power button e When the computer is off press the button fo turn on the computer e When the computer is in the Sleep state press the button briefly to exit Sleep e When the computer is on and you want to lock the screen press the power button until you see the sign in screen appear Pressing the power button during screen lock mode turns off the computer e When the computer is on and you want fo turn it off press and hold the power button Chapter 2 External component identification TouchPad Item Component Description 1 TouchPad zone Reads your finger gesture to move the pointer or activate items on the screen TouchPad 5 6 Left side ltem 1 Component Security cable slot Description Attaches an optional security cable to the computer NOTE The security cable is designed to act as a deterrent but it may not prevent the computer from being mishandled or stolen 2 HDMI port Connects an optional video or audio device such as a high definition television or any compatible digital or audio device 3
25. dures 49 c Remove the WWAN antenna cables and transceivers 3 The WWAN antenna cables and transceivers are included in the WWAN Antenna Kit spare part number 740170 001 14 If it is necessary to replace the display panel cable a Disconnect the display panel cable 1 from the webcamera microphone module b Release the display panel cable 2 from the routing clips and channel built into the top edge and left side of the display enclosure 50 Chapter 4 Removal and replacement procedures preliminary requirements c Remove the display panel cable 3 The display panel cable is available using spare part number 740145 001 wem less len mmm mmm mmm mmm mmm mmm mm Reverse this procedure to reassemble and install the display assembly Component replacement procedures 51 System board 52 fey NOTE The system board spare part kit includes replacement thermal material Description Spare part number Equipped with an Intel Celeron 2955U 1 40 GHz processor 2 0 MB L3 cache 15 W 4 0 GB of 740160 001 system memory and a graphics subsystem with UMA memory Equipped with an Intel Celeron 2955U 1 40 GHz processor 2 0 MB L3 cache 15 W 2 0 GB of 742097 001 system memory and a graphics subsystem with UMA memory Before removing the system board follow these steps 1 Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down
26. ees 10 WG EE 13 NSCS A EUS pams E 14 Sequential part number listing caczoniacaunistmsivndinniseamubereauluniiiiineaieainubbiibaiendraulvhoninad niedeaeaninndansazuanieieieiwks 15 4 Removal and replacement procedures preliminary requirements ssesssossossossessssesoseoe 18 Tools FSC UIC osuran ergi n EE 18 Service CONSID SINGIN Svs cnirnariscrondcesecqusncqsehena duran dave raattavaounsacavantercpetiepenateaiaresenanenaeeiayiaten tiated 18 FPF pans oaeen a area tae ipv ton caveats eo E EEES 18 EE 19 mer 19 EE Rer ENER eeler eeneg eieiei 20 Electrostatic isch e cainege 4 ncccbuer dinner ai eae amennae 20 Packaging and transporting guidelines cc cccccesseeeeeeeeeeeeeeteeeesteeeeees 21 Workstation guidelines a sccansniotsvoatnasnrvondindeivaacebsimebitatyeatnbawbswinsaed 21 Component replacement procedures geehrt eh EA eege deene 23 Rey Deere Ha erer EE 23 Eeer eebe 26 BAHE EE 28 vi SIM slot board aineeseen e maa Ea a ee Taa aa anneni aie 31 EE T ee E NE S 32 el 34 USB boarder aa EE A E E O 35 EE 37 Power connector E 38 Hall sensor WE 39 Display assembly oy case ca nieis E EE E EE bas natin 40 eelere 52 Heat Sink asec hipe tania tone n acta inten an E a E 54 SO Ae drive cin erate ait ee ee ee eae eee 56 5 Speci CCMA sss ds vensncecidsdsncccnserscsseiessssaneebancinddeaedsastnmiieretanetinstaesebntinemn neni 58 6 Power cord set reguiremeniS ssiisiisiiccssicisnicnionsionmmismmiaimimumnimaunianiin 59 R
27. epth 23 98 cm 9 44 in Height 2 16 cm 0 86 in Weight lowest weight configuration 2 15 g 4 74 lb Temperature Operating 5 C to 35 C 41 F to 95 F Nonoperating 20 C to 60 C 4 F to 140 F Relative humidity non condensing Operating Nonoperating 10 to 90 5 to 95 Maximum altitude unpressurized Operating 15 m to 3 048 m 50 ft to 10 000 ft Nonoperating 15 m to 12 192 m 50 ft to 40 000 ft NOTE Applicable product safety standards specify thermal limits for plastic surfaces The device operates well within this range of temperatures Chapter 5 Specifications 6 Power cord set requirements The wide range input feature of the computer permits it to operate from any line voltage from 100 to 120 volts AC or from 220 to 240 volts AC The 3 conductor power cord set included with the computer meets the requirements for use in the country or region where the equipment is purchased Power cord sets for use in other countries and regions must meet the requirements of the country or region where the computer is used Requirements for all countries The following requirements are applicable to all countries and regions The length of the power cord set must be at least 1 0 m 3 3 ft and no more than 2 0 m 6 5 ft All power cord sets must be approved by an acceptable accredited agency responsible for evaluation in the country or region where the power cord set will be
28. equirements for all countries ccccccceceeseeeeeeeneeeeesseeeeceeaeeeeenseeeecssaeeeeeeseeeeesseeeeseeseeeneaeees 59 Requirements for specific countries and regions ccccesccceeeesseceeeeneeeeceesceeeceeseeeeceeeeeeeeestaeees 59 7 Regiis aa a 61 Dae Ea a E E E E E E E RER 62 L Product description Category Product Name Description HP Chromebook 4 Processor Intel Celeron 2955U 1 40 GHz processor 2 0 MB L3 cache 15 W Chipset Intel Lynx Point LP processor controller hub PCH ULT soldered on circuit SoC integrated in MCP Panel 14 0 in BrightView BV high definition HD white light emitting display WLED 1366x768 SVA typical brightness 200 nits flat 3 6 mm 16 9 ultra wide aspect ratio Support for low voltage differential signalling LVDS co layout with eDP1 3 PSR Graphics Intel Graphics Intel HD Graphics Support for HD decode DX11 1 and HDMI Memory Support for up to 4096 MB on board system memory DDR3L at 1600 MHz e 4096 MB 256 MB x 16 x 8 dual channel e 2048 MB 256 MB x 16 x 4 single channel Mass storage device Solid state drive 2242 DS M 2 form factor Support for 32 or 16 GB Audio and video HP TrueVision HD slim webcamera fixed no tilt with activity light 1280x720 by 30 frames per second One digital microphone with echo cancellation and noise suppression appropriate software Stereo speakers HD audio Sensor Wirele
29. etallized laminate Floor mats 5 000 V 22 Chapter 4 Removal and replacement procedures preliminary requirements Component replacement procedures This chapter provides removal and replacement procedures for Authorized Service Provider only parts There are as many as 47 screws that must be removed replaced and or loosened when servicing the computer Make special note of each screw size and location during removal and replacement Keyboard top cover NOTE The keyboard top cover spare part kit includes the keyboard cable TouchPad and TouchPad cable Description Spare part number For use in Canada 740172 DB1 For use in Denmark Finland and Norway 740172 DH1 For use in France 740172 051 For use in Germany 740172 041 For use in the Netherlands 740172 B31 For use in the United Kingdom and Singapore 740172 031 For use in the United States 740172 001 Before removing the disassembling the computer follow these steps 1 Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer Remove the keyboard top cover 1 Close the computer 2 Turn the computer upside down with the front toward you Component replacement procedures 23 3 Remove the thirteen Philli
30. gging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the keyboard top cover see Keyboard top cover on page 23 5 Remove the speakers see Speakers on page 26 A WARNING To reduce potential safety issues use only the battery provided with the computer a replacement battery provided by HP or a compatible battery purchased from HP A CAUTION Removing a battery that is the sole power source for the computer can cause loss of information To prevent loss of information save your work or shut down the computer through Windows before removing the battery 28 Chapter 4 Removal and replacement procedures preliminary requirements Remove the battery 1 Disconnect the battery cable from the system board 2 Remove the Phillips PM2 5x4 5 screw 1 that secures the battery to the base enclosure 3 Dt the left side of the battery 2 until the battery is clear of the alignment post 3 in the middle of the battery 4 Release the battery 4 by sliding it to the left Component replacement procedures 29 5 Remove the battery 5 by sliding it forward Reverse this procedure to install the battery 30 Chapter 4 Removal and replacement procedures preliminary requirements SIM slot board Description Spare part number SIM slot board includes cable 740168 001 Before removing the SIM slot board follow these steps 1 Turn off the computer If you are unsure
31. isplay bezel in peach coral finish 740151 001 USB board for use only on computer models not equipped with WWAN capability includes Media Card Reader slot and cable 740152 001 Webcamera microphone module includes double sided adhesive 740154 001 Speaker Kit includes left and right speakers and cables 740155 001 14 0 in BV HD WLED SVA display panel 740156 001 Screw Kit 740158 001 16 GB solid state drive 740159 001 32 GB solid state drive Sequential part number listing 15 16 Spare part number Description 740160 001 System board equipped with an Intel Celeron 2955U 1 40 GHz processor 2 0 MB L3 cache 15 W 4 0 GB of system memory and a graphics subsystem with UMA memory includes replacement thermal material 740161 001 Base enclosure in peach coral finish for use only on computer models equipped with WWAN capability 740163 001 Base enclosure in snow white finish for use only on computer models equipped with WWAN capability 740164 001 Base enclosure in ocean turquoise finish for use only on computer models not equipped with WWAN capability 740165 001 Base enclosure in peach coral finish for use only on computer models not equipped with WWAN capability 740167 001 Base enclosure in snow white finish for use only on computer models not equipped with WWAN capability 740168 001 SIM slot board includes cable 740169 001 Hall sensor board includes cable 740170
32. ity Security cable lock Operating system Serviceability Chapter 1 Product description Preinstalled Google Chrome End user replaceable part AC adapter 2 External component identification Display NOTE The position of the WLAN antennas differs according to model If your model has WWAN capability in addition to WLAN the WLAN antennas will be are located below the display See 1 in the table below Item 1 2 Component WLAN antennas 2 Webcamera light Description Send and receive wireless signals to communicate with wireless local area networks NOTE To set up a WLAN and connect to the Internet you need a broadband modem either DSL or cable purchased separately high speed Internet service purchased from an Internet service provider and a wireless router purchased separately On The webcam is in use 3 HP TrueVision HD Webcamera Records video captures still photographs and allows you to video conference and chat online using streaming video 4 Internal microphone Records sound 5 Internal display switch Turns off the display and initiates Sleep if the display is closed while the power is on NOTE The internal display switch is not visible from the outside of the computer Display 4 Item Component Description 6 WWAN antennas 2 Send and receive wireless signals to communicate with wireless wide select mo
33. ngle 2 e Les e e e zeg j F c Release the adhesive support strip 1 that secures the display panel cable to the display panel d Disconnect the display panel cable 2 from the display panel 44 Chapter 4 Removal and replacement procedures preliminary requirements e Remove the display panel 3 The display panel is available using spare part number 740155 001 10 If it is necessary to replace the webcamera microphone module A CAUTION Handle the webcamera microphone module with caution This module has a thin profile and is susceptible to damage when not handled carefully a Detach the webcamera microphone module 1 from the display enclosure by carefully lifting up on the left side of the module The webcamera microphone module is attached to the display enclosure with double sided adhesive b Disconnect the webcamera microphone module cable 2 from the webcamera microphone module Component replacement procedures 45 c Remove the webcamera microphone module 3 The webcamera microphone module is available using spare part number 740152 001 d Release the adhesive support strip 1 that secures the display panel cable to the display panel e Disconnect the display panel cable 2 from the display panel 46 Chapter 4 Removal and replacement procedures preliminary requirements f Remove the display panel 3 The display panel is available using spare part number 740155 001 11
34. p 2 Remove the WWAN module 2 by pulling the module away from the slot at an angle Component replacement procedures 37 NOTE If the WLAN antenna cables are not connected to the terminals on the WLAN module protective sleeves should be installed on the antenna connectors as shown in the following illustration Reverse this procedure to install the WWAN module Power connector cable Description Spare part number Power connector cable 740148 001 Before removing the power connector cable follow these steps Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system Disconnect the power from the computer by unplugging the power cord from the computer Disconnect all external devices from the computer Remove the keyboard top cover see Keyboard top cover on page 23 Disconnect the battery cable from the system board see Speakers on page 26 anu Bb WwW HM Remove the USB board see USB board on page 35 Remove the power connector cable 1 Disconnect the power connector cable 1 from the system board 2 Release the power connector cable from the retention clips channel 2 built into the base enclosure 38 Chapter 4 Removal and replacement procedures preliminary requirements 3 Release the power connector 3 from the retention clips built into the base enclosure
35. part numbers 49 50 audio product description 1 audio in jack 6 audio out jack 6 13 16 B base enclosure spare part numbers 11 15 16 battery removal 28 spare part number bottom components 8 button component 4 11 15 28 c cables service considerations 19 chipset product description 1 components bottom 8 button 4 display 3 leftside 6 right side 7 TouchPad 5 computer major components 10 specifications 58 connectors service considerations 19 62 Index D display assembly components spare part numbers 13 40 display assembly removal 40 display bezel removal 42 spare part numbers 16 43 display components 3 display enclosure spare part numbers 14 15 Display Hinge Kit spare part number 13 15 48 display panel product description 1 removal 44 13 15 spare part number 13 15 45 47 display panel cable removal 50 spare part number 14 15 51 drives preventing damage 19 E electrostatic discharge 20 equipment guidelines 22 external expansion product description 2 F fan removal 34 spare part number 11 15 34 G graphics product description 1 grounding guidelines 20 guidelines equipment 22 grounding 20 packaging 21 transporting 21 workstation 21 H hall sensor board removal 39 spare part number HDMI port 6 HDMI to VGA adapter spare part number 14 15 headphone jack 6 heat sink removal 54 11 16 39 spare part number 11 15 54 hinge
36. ps PM2 5x6 5 screws that secure the keyboard top cover to the computer U l l l es Lesen ve vn en vn en em mn pen men mn pen pn vm ei o Lesen wn mmm mmm mmm remm mmm w mmm mmm mm mmm vm mmm mmm zg mmm mmm mmm mmm mmm mmm mg en Uess D rn wn vm mmm mm mmm wg A CAUTION Use caution when detaching the keyboard top cover from the base enclosure The keyboard and TouchPad ribbon cables are still connected to the system board and can be damaged 4 Lift the front end of the keyboard top cover 1 and swing it up and back until the left and right edges detach from the base enclosure 5 Lift the keyboard top cover 2 until the back edge detaches from the base enclosure 6 Slide the keyboard top cover 3 forward until the keyboard and TouchPad ribbon cables are accessible 24 Chapter 4 Removal and replacement procedures preliminary requirements 7 Release the zero insertion force ZIF connector 1 to which the keyboard cable is attached and then disconnect the keyboard cable 2 from the system board 8 Release the ZIF connector 3 to which the TouchPad cable is attached and then disconnect the TouchPad cable 4 from the system board Clees l Ki CN rj i i A fi Ia Se el 9 Remove the keyboard top cover Reverse this procedure to install the keyboard top cover Component replacement procedures 25 Speakers Description Spare part number
37. puter please contact your local point of sale the seller Safety warning notice Z WARNING To reduce the possibility of heatrelated injuries or of overheating the device do not place the device directly on your lap or obstruct the device air vents Use the device only on a hard flat surface Do not allow another hard surface such as an adjoining optional printer or a soft surface such as pillows or rugs or clothing to block airflow Also do not allow the AC adapter to contact the skin or a soft surface such as pillows or rugs or clothing during operation The device and the AC adapter comply with the user accessible surface temperature limits defined by the International Standard for Safety of Information Technology Equipment IEC 60950 iv Safety warning notice Table of contents 1 Beegduet description sessisiccsisnsiessnssiomuiincnnnnusnuiansummamuarmienminvamcmisiamiames 1 2 External component identification ccccccsscccsscscsscccsscccsscccssccccesccecceeescscesceeesceesesees 3 EE 3 Buton ebe enee A eg 5 leftside acct fet iyo ao ante nei vA Den lel ddI lh 6 elteren eeler eeg 7 BEE 8 3 illysirated parts catalog cascsaiinnminnainninisimiiawinnwincinnuinunuimaciaannie 9 Locating the serial number product number and model number c ccccceeseceeeeeeeeeeeeeeseeeeeeees 9 Computer major COMPONENTS sseeeeeeeceecceceeceeeenaeeeaeeceeeeeeceeeeceeeeecececeeeeeaaeeeteeeeesteeeeeeeeee
38. removal 47 spare part number 13 15 48 l internal display switch 3 J jacks audio in 6 audio out 6 headphone 6 microphone 6 K keyboard product description 2 keyboard top cover removal 23 spare part numbers 23 10 16 L left side components 6 lights AC adapter 7 power 6 webcamera 3 M mass storage device precautions 19 product description 1 memory card reader 7 memory module product description 1 microphone location 3 product description 1 microphone jack 6 model name 1 O operating system product description 2 P packaging guidelines 21 plastic parts service considerations 18 pointing device product description 2 ports HDMI 6 product description 2 USB 2 0 7 USB 3 0 port 6 power adapter spare part numbers 14 power button 4 power connector 7 power connector cable removal 38 spare part number power cord set requirements 59 spare part numbers power light 6 power requirements product description 2 processor product description 1 product description audio 1 chipset 1 display panel 1 11 15 38 14 15 external expansion 2 graphics 1 keyboard 2 mass storage device 1 memory module 1 microphone 1 operating system 2 pointing device 2 ports 2 power requirements 2 processor 1 product name 1 security 2 sensor serviceability 2 video 1 wireless networking 1 product name 1 R removal replacement procedures 23 right side components 7 RJ 45 to USB
39. rial 743914 001 Rubber Kit for use on computer models with peach coral finish Chapter 3 Illustrated parts catalog Spare part number Description 743915 001 Rubber Kit for use on computer models with rubber white finish 744781 001 USB board for use only on computer models equipped with WWAN capability includes includes Media Card Reader slot WWAN module slot and cable Sequential part number listing 17 4 Removal and replacement procedures preliminary requirements Tools required You will need the following tools to complete the removal and replacement procedures e Flat bladed screw driver e Magnetic screw driver e Phillips PO screw driver Service considerations The following sections include some of the considerations that you must keep in mind during disassembly and assembly procedures E NOTE As you remove each subassembly from the computer place the subassembly and all accompanying screws away from the work area to prevent damage Plastic parts A CAUTION Using excessive force during disassembly and reassembly can damage plastic parts Use care when handling the plastic parts Apply pressure only at the points designated in the maintenance instructions 18 Chapter 4 Removal and replacement procedures preliminary requirements Cables and connectors A CAUTION When servicing the computer be sure that cables are placed in their proper locations during the reassembly process
40. s PM2 5x5 5 screws 1 that secure the display assembly to the base enclosure Component replacement procedures 41 7 Remove the display assembly 2 8 If it is necessary to replace the display bezel or any of the display assembly subcomponents a Remove the two screw covers 1 and the two Phillips PM2 0x2 5 screws 2 that secure the display bezel to the display assembly The screw covers are available in the following Rubber Kits e 741055 001 For use on computer models with ocean turquoise finish e 743914 001 For use on computer models with peach coral finish e 743915 001 For use on computer models with snow white finish 42 Chapter 4 Removal and replacement procedures preliminary requirements Flex the inside edges of the top edge 1 the left and right sides 2 and the bottom edge 3 of the display bezel until the bezel disengages from the display enclosure Remove the display bezel 4 The display bezel is available using the following spare part numbers e 741671 001 For use on computer models with ocean turquoise finish e 740150 001 For use on computer models with peach coral finish e 741670 001 For use on computer models with snow white finish Component replacement procedures 43 9 If itis necessary to replace the display panel a Remove the four Phillips PM2 0x2 5 screws 1 that secure the display panel to the display enclosure b Lift the top edge of the display panel 2 until it rests at an a
41. ss networking Trusted Platform Module TPM Infineon SLB9655TT1 2 Integrated wireless local area network WLAN options by way of wireless module Two WLAN antennas built into display assembly Support for the Atheros AR9462 802 11a b g n 2x2 Bluetooth 4 0 Combo Adapter Antenna support for following bands 850 900 1800 1900 2100 MHz 2 Category Description Integrated wireless wide area network WWAN options by way of wireless module select models only Two WWAN antennas built into display assembly select models only Support for the HP cr3124 HSPA Mobile Broadband Module SIM card slot user accessible Support for HSPA HSPA External expansion HP multiformat digital media card deader Support for SD SDHC SDXC up to UHS 50 Push push insertion removal SIM slot populated with WWAN tool less user accessible Ports e AC adapter HP Smart 4 5 mm barrel e Audio in mono microphone audio out stereo headphone combo jack e USB 3 0 2 e USB 2 0 1 Keyboard Full sized textured island style Google keyboard pointing devices Touchpad Requirements Multitouch gestures and Taps enabled as default Power requirements Support for 4 cell 51 WHr 3 42 AHr Li ion battery non removable Support for the following AC adapters e 65 W HP Smart adapter non PFC EM 3 wire 4 5 mm e 65 W HP Smart adapter non PFC S 3P 3 wire 4 5 mm e 45 W HP Smart adapter non PFC RC 3 wire 4 5 mm Secur
42. ter allow at least 7 6 cm 3 in of clearance on the rear edge of the computer The computer uses an electric fan for ventilation The fan is controlled by a temperature sensor and is designed to turn on automatically when high temperature conditions exist These conditions are affected by high external temperatures system power consumption power management battery conservation configurations battery fast charging and software requirements Exhaust air is displaced through the ventilation grill located on the rear edge of the computer Before removing the fan follow these steps 1 Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the keyboard top cover see Keyboard top cover on page 23 5 Disconnect the battery cable from the system board see Speakers on page 26 Remove the fan 1 Disconnect the fan cable from the system board 2 Remove the three Phillips PM2 0x2 5 screws 2 that secure the fan to the base enclosure Chapter 4 Removal and replacement procedures preliminary requirements 3 Remove the fan 3 l d og Lesen Reverse this procedure to install the fan USB board fy NOTE The USB board spare part kit includes a cable
43. through the operating system 2 Disconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the keyboard top cover see Keyboard top cover on page 23 and then remove the following components a Speakers see Speakers on page 26 b Battery see Battery on page 28 c WLAN module see WLAN module on page 32 d Hall sensor board see Hall sensor board on page 39 NOTE When replacing the system board be sure that the heat sink see Heat sink on page 54 and the solid state drive see Solid state drive on page 56 are removed from the defective system board and installed on the replacement system board Chapter 4 Removal and replacement procedures preliminary requirements Remove the system board 1 Disconnect the following cables from the system board 1 Display panel cable 2 Power connector cable 3 USB board cable 4 Fan cable 2 Remove the three Phillips PM2 5x4 5 screws 1 that secure the system board to the base enclosure Component replacement procedures 53 3 Remove the system board 2 hd i l lil Reverse this procedure to install the system board Heat sink Description Spare part number Heat sink includes replacement thermal material 740146 001 Before removing the heat sink follow these steps 1 Turn off the computer If you are unsure whether the
44. ts that have magnetic fields such as monitors or speakers Avoid exposing a drive to temperature extremes or liquids If a drive must be mailed place the drive in a bubble pack mailer or other suitable form of protective packaging and label the package FRAGILE Service considerations 19 Grounding guidelines Electrostatic discharge damage Electronic components are sensitive to electrostatic discharge ESD Circuitry design and structure determine the degree of sensitivity Networks built into many integrated circuits provide some protection but in many cases ESD contains enough power to alter device parameters or melt silicon junctions A discharge of static electricity from a finger or other conductor can destroy static sensitive devices or microcircuitry Even if the spark is neither felt nor heard damage may have occurred An electronic device exposed to ESD may not be affected at all and can work perfectly throughout a normal cycle Or the device may function normally for a while then degrade in the internal layers reducing its life expectancy A CAUTION To prevent damage to the computer when you are removing or installing internal components observe these precautions Keep components in their electrostatic safe containers until you are ready to install them Before touching an electronic component discharge static electricity by using the guidelines described in this section Avoid touching pins leads
45. used The power cord sets must have a minimum current capacity of 10 amps and a nominal voltage rating of 125 or 250 V AC as required by the power system of each country or region The appliance coupler must meet the mechanical configuration of an EN 60 320 IEC 320 Standard Sheet C13 connector for mating with the appliance inlet on the back of the computer Requirements for all countries 113 Requirements for specific countries and regions Country region Accredited agency Applicable note number Australia EANSW 1 Austria OVE 1 Belgium CEBC l Canada CSA 2 Denmark DEMKO 1 Finland FIMKO 1 Requirements for all countries 59 60 Country region Accredited agency Applicable note number France UTE 1 Germany VDE Italy IMQ Japan METI 3 The Netherlands KEMA 1 Norway NEMKO 1 The People s Republic of China COC 5 South Korea EK 4 Sweden CEMKO 1 Switzerland SEV 1 Taiwan BSMI 4 The United Kingdom BSI 1 The United States UL 2 1 The flexible cord must be Type HO5VV F 3 conductor 1 0 mm conductor size Power cord set fittings appliance coupler and wall plug must bear the certification mark of the agency responsible for evaluation in the country or region where it will be used The flexible cord must be Type SPT 3 or equivalent No 18 AWG 3 conductor The wall plug must be a two pole grounding type with a NEMA 5 15P 15 A 125 V or NEMA 6 15P 15 A 250 V configuration The applian
46. ystem board see Speakers on page 26 A CAUTION To prevent an unresponsive system replace the wireless module only with a wireless module authorized for use in the computer by the governmental agency that regulates wireless devices in your country or region If you replace the module and then receive a warning message remove the module to restore device functionality and then contact technical support 32 Chapter 4 Removal and replacement procedures preliminary requirements Remove the WLAN module 1 Disconnect the WLAN antenna cables 1 from the terminals on the WLAN module ey NOTE The WLAN antenna cable labeled 1 connects to the WLAN module Main terminal labeled 1 The WLAN antenna cable labeled 2 connects to the WLAN module Aux terminal labeled 2 2 Remove the Phillips PM2 0x2 5 screw 2 that secures the WLAN module to the system board The WLAN module tilts up 3 Remove the WLAN module 3 by pulling the module away from the slot at an angle wei t NOTE Ifthe WLAN antenna cables are not connected to the terminals on the WLAN module protective sleeves should be installed on the antenna connectors as shown in the following illustration Component replacement procedures 33 34 Fan Reverse this procedure to install the WLAN module Description Spare part number Fan includes cable 740149 001 E NOTE To properly ventilate the compu
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