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5

Removal and replacement procedures for 
authorized service provider parts

IMPORTANT:

Components described in this chapter should be accessed only by an authorized service 

provider. Accessing these parts can damage the computer or void the warranty.

IMPORTANT:

This computer does not have user-replaceable parts. Only HP authorized service providers 

should perform the removal and replacement procedures described here. Accessing an internal part could 
damage the computer or void the warranty.

Component replacement procedures

NOTE:

Details about your computer, including model, serial number, product key, and length of warranty, 

are on the service tag at the bottom of your computer. See 

Labels on page 11

 for details. 

NOTE:

HP continually improves and changes product parts. For complete and current information on 

supported parts for your computer, go to 

http://partsurfer.hp.com

, select your country or region, and then 

follow the on-screen instructions.

There are as many as 45 screws that must be removed, replaced, and/or loosened when servicing the parts 
described in this chapter. Make special note of each screw size and location during removal and replacement.

Preparation for disassembly

See 

Removal and replacement procedures preliminary requirements on page 17

 for initial safety procedures.

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.

22

Chapter 5   Removal and replacement procedures for authorized service provider parts

Summary of Contents for Chromebook 15 Series

Page 1: ...Maintenance and Service Guide HP Chromebook 15 IMPORTANT This document is intended for HP authorized service providers only ...

Page 2: ... contained herein First Edition April 2019 Document Part Number L51892 001 Product notice This guide describes features that are common to most models Some features may not be available on your computer To access the latest user guides go to http www hp com support and follow the instructions to find your product Then select User Guides Software terms By installing copying downloading or otherwise...

Page 3: ...ard 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 applicable safet...

Page 4: ...iv Safety warning notice ...

Page 5: ...ls required 17 Service considerations 17 Plastic parts 17 Cables and connectors 17 Drive handling 18 Workstation guidelines 18 Electrostatic discharge information 18 Generating static electricity 19 Preventing electrostatic damage to equipment 19 Personal grounding methods and equipment 20 Grounding the work area 20 Recommended materials and equipment 20 Packaging and transporting guidelines 21 5 ...

Page 6: ...ink 31 Touchpad 33 System board 34 Speakers 37 Display assembly 38 Keyboard top cover 48 6 Specifications 49 7 Power cord set requirements 50 Requirements for all countries 50 Requirements for specific countries and regions 50 8 Recycling 52 Index 53 vi ...

Page 7: ...narrow bezel Non touch 220 nits Touch on Panel TOP 250 nits Memory Integrated memory non upgradeable non replaceable Supports DDR4 2133 system memory in the following configurations 8 GB 4 GB Storage Supports on board embedded MultiMedia Controller eMMC storage in the following configurations 128 GB 64 GB 32 GB Audio and video Fixed no tilt integrated dual array HD 720p webcam 1280 720 by 30 frame...

Page 8: ...d Island style keyboard textured backlit with touchpad and numeric keypad Security H1 Secure Microcontroller Nano security lock Power requirements Battery 3 cell 60 Whr long life battery AC adapter 45 W AC adapter non PFC USB Type C straight Power cord C5 1 0 m conventional Operating system Google Chrome 64 bit Serviceability End user replaceable part AC adapter 2 Chapter 1 Product description ...

Page 9: ...C adapter is connected and the battery is charging Off The computer is using battery power or is turned off 3 USB Type C power connector and port Connects an AC adapter that has a USB Type C connector supplying power to the computer and if needed charging the computer battery and Connects a USB device that has a Type C connector such as a cell phone camera activity tracker or smartwatch and provid...

Page 10: ...d or adapters purchased separately may be required 3 AC adapter and battery light White The computer is on and the AC adapter is connected and the battery is charged Amber The AC adapter is connected and the battery is charging Off The computer is using battery power or is turned off 4 Audio out headphone Audio in microphone combo jack Connects optional powered stereo speakers headphones earbuds a...

Page 11: ... card reader Reads optional memory cards that enable you to store manage share or access information To insert a card 1 Hold the card label side up with connectors facing the computer 2 Insert the card into the memory card reader and then press in on the card until it is firmly seated To remove a card Press in on the card and then remove it from the memory card reader Left side 5 ...

Page 12: ...till images NOTE Camera functions vary depending on the camera hardware and software installed on your product The antennas are not visible from the outside of the computer and antenna location varies 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 ...

Page 13: ...Touchpad Table 2 4 Touchpad component and description Component Description Touchpad zone Reads your finger gestures to move the pointer or activate items on the screen Touchpad 7 ...

Page 14: ... state press the button briefly to exit Sleep When the computer is on and you want to lock the screen press the button until you see the sign in screen appear Pressing the power button during screen lock mode turns off the computer When the computer is on and you want to turn it off press and hold the button to lock the screen and then continue to press the button until the computer turns off 8 Ch...

Page 15: ...s Component Description Vent Enables 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 Bottom 9 ...

Page 16: ...ab or Shift 2 Action keys Execute frequently used system functions 3 Integrated numeric keypad A separate keypad to the right of the alphabet keyboard The keypad can be used like an external numeric keypad NOTE If the keypad function is active when the computer is turned off that function is reinstated when the computer is turned back on 10 Chapter 2 Getting to know your computer ...

Page 17: ... tablet kickstand Service label Provides important information to identify your computer When contacting support you may be asked for the serial number the product number or the model number Locate this information before you contact support Table 2 8 Service label components Component 1 Product name 2 Product ID 3 Serial number 4 Warranty period Regulatory label s Provide s regulatory information...

Page 18: ...nd changes product parts For complete and current information on supported parts for your computer go to http partsurfer hp com select your country or region and then follow the on screen instructions Computer components 12 Chapter 3 Illustrated parts catalog ...

Page 19: ...y and 128 GB of eMMC storage L57307 001 Equipped with an Intel Core i3 8130U processor 8 GB of system memory and 128 GB of eMMC storage L57305 001 Equipped with an Intel Core i3 8130U processor 8 GB of system memory and 64 GB of eMMC storage L57306 001 Equipped with an Intel Core i3 8130U processor 4 GB of system memory and 128 GB of eMMC storage L57304 001 Equipped with an Intel Core i3 8130U pro...

Page 20: ...pare part number 15 Bottom cover For use on cloud blue models L54802 001 For use on mineral silver models L54803 001 16 Rubber Foot Kit includes front and rear feet For use on cloud blue models L54801 001 For use on mineral silver models L54833 001 14 Chapter 3 Illustrated parts catalog ...

Page 21: ...nts and their descriptions Item Component Spare part number 1 Display bezel L54824 001 2 Hinge cover L54832 001 3 Webcam microphone module includes double sided adhesive L54830 001 4 Display panel 220 nit displays L54852 001 Display assembly subcomponents 15 ...

Page 22: ...ay assembly L54826 001 9 Wireless antennas L54831 001 10 Display back cover includes the display panel tape L54822 001 Miscellaneous parts Table 3 3 Miscellaneous parts and their descriptions Component Spare part number AC adapter 45 W non PFC USB C 1 8 m 3 pin L43407 001 Miscellaneous Kit includes cloud blue screw cover mineral silver screw cover battery protective tape WLAN module protective tap...

Page 23: ...arts IMPORTANT Using excessive force during disassembly and reassembly can damage plastic parts Cables and connectors IMPORTANT When servicing the computer be sure that cables are placed in their proper locations during the reassembly process 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 t...

Page 24: ...n 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 ordinar...

Page 25: ...00 V 6 000 V 2 000 V Removing DIPs from vinyl tray Removing DIPs from Styrofoam Removing bubble pack from PCB Packing PCBs in foam lined box 2 000 V 3 500 V 7 000 V 5 000 V 4 000 V 5 000 V 20 000 V 11 000 V 11 500 V 14 500 V 26 500 V 21 000 V Electronic components are then multi packaged inside plastic tubes trays or Styrofoam NOTE As little as 700 volts can degrade a product Preventing electrosta...

Page 26: ...rk area use the following precautions Cover the work surface with approved static dissipative material Provide a wrist strap connected to the work surface and properly grounded tools and equipment Use static dissipative mats foot straps or air ionizers to give added protection Handle electrostatic sensitive components parts and assemblies by the case or PCB laminate Handle them only at static free...

Page 27: ...ies 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 Store reusable ESD sensitive parts from assemblies in protective packaging or nonconductive foam Use tra...

Page 28: ...ves and changes product parts For complete and current information on supported parts for your computer go to http partsurfer hp com select your country or region and then follow the on screen instructions There are as many as 45 screws that must be removed replaced and or loosened when servicing the parts described in this chapter Make special note of each screw size and location during removal a...

Page 29: ...g the computer follow these steps Prepare the computer for disassembly Preparation for disassembly on page 22 Remove the rubber feet and bottom cover 1 Position the computer upside down 2 Remove the two front rubber feet 1 3 Remove the two rear rubber feet 2 4 Remove the Phillips M2 5 6 0 screw 3 from under each foot 5 Remove the three screw covers 4 and three Phillips M2 0 3 0 screws 5 from the b...

Page 30: ...8 Rotate the cover off the computer 5 Reverse this procedure to install the bottom cover and rubber feet 24 Chapter 5 Removal and replacement procedures for authorized service provider parts ...

Page 31: ...or disassembly Preparation for disassembly on page 22 2 Remove the bottom cover see Bottom cover on page 23 Remove the battery 1 Disconnect the battery cable from the system board 1 2 Remove the five Phillips M2 0 3 0 screws 2 that secure the battery to the computer 3 Remove the battery from the computer 3 Reverse this procedure to install the battery Component replacement procedures 25 ...

Page 32: ...odule follow these steps 1 Prepare the computer for disassembly Preparation for disassembly on page 22 2 Remove the bottom cover see Bottom cover on page 23 3 Disconnect the battery cable from the system board see Battery on page 25 Remove the WLAN module 1 Disconnect the wireless antenna cables 1 from the terminals on the WLAN module NOTE The wireless antenna cable labeled 1 MAIN connects to the ...

Page 33: ...re not connected to the WLAN module terminal the protective sleeves should be installed on the antenna connectors as shown in the following illustration Reverse this procedure to install the WLAN module Component replacement procedures 27 ...

Page 34: ...ble from the system board see Battery on page 25 Remove the USB board 1 Disconnect the 30 pin cable from the ZIF connector on the top of the USB board 1 2 Remove the Phillips M2 0 4 0 screw 2 that secures the USB board bracket to the computer 3 Remove the two broadhead Phillips M2 0 2 0 screws 3 that secure the USB board to the computer 4 Lift and turn the board upside down to access the connector...

Page 35: ...6 Remove the USB board 3 Reverse this procedure to install the USB board Component replacement procedures 29 ...

Page 36: ...e 23 3 Disconnect the battery cable from the system board see Battery on page 25 Remove the fan 1 Detach the USB board cable from the fan 1 The cable is secured to the fan with adhesive 2 Disconnect the fan cable from the system board 2 3 Remove the two Phillips M2 0 4 0 screws 3 that secure the fan to the computer 4 Remove the fan 4 Reverse this procedure to install the fan 30 Chapter 5 Removal a...

Page 37: ...d see Battery on page 25 Remove the heat sink 1 In the order stamped on the heat sink remove the four Phillips M2 0 3 0 screws 1 that secure the heat sink to the system board 2 Remove the heat sink from the system board 2 NOTE Thoroughly clean the thermal material from the surfaces of the heat sink and the system board components each time the heat sink is removed Replacement thermal material is i...

Page 38: ...Reverse this procedure to install the heat sink 32 Chapter 5 Removal and replacement procedures for authorized service provider parts ...

Page 39: ...w these steps 1 Prepare the computer for disassembly Preparation for disassembly on page 22 2 Remove the bottom cover see Bottom cover on page 23 3 Remove the battery see Battery on page 25 Remove the touchpad 1 Disconnect the cable from the ZIF connector on the system board 1 2 Remove the four Phillips M2 0 3 0 screws 2 that secure the touchpad bracket to the computer 3 Remove the touchpad bracke...

Page 40: ...d with an Intel Pentium 4415U processor 4 GB of system memory and 64 GB of eMMC storage L54809 001 System board equipped with an Intel Pentium 4415U processor 4 GB of system memory and 32 GB of eMMC storage L57308 001 Before removing the system board follow these steps 1 Prepare the computer for disassembly Preparation for disassembly on page 22 2 Remove the bottom cover see Bottom cover on page 2...

Page 41: ... 0 3 0 screws 2 that secure the system board to the computer 4 Lift and position the system board upside down to access the USB board cable connector underneath 3 5 Release the ZIF connector for the USB board cable on the bottom of the system board 1 and then disconnect the cable 2 Component replacement procedures 35 ...

Page 42: ...6 Remove the system board from the computer 3 Reverse this procedure to install the system board 36 Chapter 5 Removal and replacement procedures for authorized service provider parts ...

Page 43: ...on page 23 3 Remove the battery see Battery on page 25 4 Remove the fan see Fan on page 30 5 Remove the system board see System board on page 34 Remove the speakers 1 Remove the four Phillips M2 0 2 0 screws 1 that secure the speakers to the computer 2 Release the speaker cable 2 from the retention channel retention clips built into the bottom cover 3 Remove the speakers from the computer 3 Revers...

Page 44: ...assembly 1 Disconnect the display cable 1 from the system board 2 Disconnect the transfer board cable 2 from the system board 3 Disconnect the WLAN antenna cables 3 from the terminals on the WLAN module NOTE The WLAN antenna cable labeled 1 MAIN connects to the WLAN module Main terminal The WLAN antenna cable labeled 2 AUX connects to the WLAN module Aux terminal 4 Release the cables from the rete...

Page 45: ...nd rotate the cover 1 and then lift it away from the display 2 b Remove the two Phillips M2 0 2 0 screws 1 from the bottom of the bezel c Release the top edge of the display bezel 2 from the display assembly d Release the left and right edges of the display bezel 3 from the display assembly e Release the bottom edge of the display bezel 4 from the display assembly Component replacement procedures ...

Page 46: ...y on both sides of the webcam to detach the it from the display back cover 1 The webcam module is attached to the display back cover with double sided adhesive b Disconnect the cable 2 from the webcam module The webcam module is available using spare part number L54830 001 40 Chapter 5 Removal and replacement procedures for authorized service provider parts ...

Page 47: ...are part number L54828 001 11 If it is necessary to replace the webcam transfer board cable a Disconnect the cable from the webcam module 1 and the remove the cable from the clip 2 on the display back cover b On models with a touch display disconnect the cable from the webcam transfer board 3 c Remove the cable from the display 4 The webcam transfer board cable is available using the following spa...

Page 48: ... sides of the display panel 1 b Pull the tape out from behind the left and right sides of the panel 2 NOTE You have to pull on the tape multiple times before it is completely removed To avoid tearing the tape pull the tape evenly and carefully 42 Chapter 5 Removal and replacement procedures for authorized service provider parts ...

Page 49: ...ts Kit using spare part number L54819 001 d Release the adhesive support strip 1 and lift the connector release latch 2 that secures the display panel cable connector to the display panel e Disconnect the display panel cable 3 from the display panel f On models with a touch display disconnect the cable from the webcam transfer board 4 Component replacement procedures 43 ...

Page 50: ...s and L54853 001 for 250 nit panels 13 If it is necessary to replace the display hinges a Remove the four Phillips M2 5 2 5 screws 1 from the bottom of each hinge b Remove the Phillips M2 0 2 5 screw 2 from the top of each hinge 44 Chapter 5 Removal and replacement procedures for authorized service provider parts ...

Page 51: ...s from the display back cover 3 The display hinges are available using spare part number L54823 001 14 If it is necessary to replace the display panel cable a Remove the cable from the hinge 1 Component replacement procedures 45 ...

Page 52: ...isplay cable is available using spare part number L54825 001 on models with a touch display and L54826 001 on models with a non touch display 15 If it is necessary to replace the wireless antennas a Peel the antennas off the top of the display back cover 1 46 Chapter 5 Removal and replacement procedures for authorized service provider parts ...

Page 53: ...the display back cover 2 and then remove the antennas and cables from the display back cover 3 The wireless antennas are available using spare part number L54831 001 Reverse this procedure to reassemble and install the display assembly Component replacement procedures 47 ...

Page 54: ...ver description and part number Description Spare part number Keyboard top cover no backlight L54815 xx1 Keyboard top cover backlit L54816 xx1 Table 5 11 Spare part country codes For use in country or region Spare part number For use in country or region Spare part number Belgium A41 The Netherlands B31 Denmark Finland and Norway DH1 United Kingdom 031 France 051 United States 001 48 Chapter 5 Rem...

Page 55: ... C 41 F to 95 F Nonoperating 20 C to 60 C 4 F to 140 F Relative humidity noncondensing Operating 10 to 90 Nonoperating 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 49 ...

Page 56: ...gency responsible for evaluation in the country or region where the power cord set will be 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 ...

Page 57: ...ation 3 The appliance 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 4 The flexible cord must be Type RVV 3 conductor 0 75 mm conduc...

Page 58: ...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 52 Chapter 8 Recycling ...

Page 59: ...mbers 16 46 E electrostatic discharge ESD 18 preventing damage 19 esc key identifying 10 F fan removal 30 spare part number 13 30 G graphics product description 1 grounding methods 20 guidelines packaging 21 transporting 21 workstation 18 H headphone audio out jack 4 heat sink removal 31 spare part number 13 31 hinge removal 44 spare part number 16 45 47 hinge cover spare part number 15 I integrat...

Page 60: ...locating 11 serviceability product description 2 slots nano security cable 4 speaker identifying 8 speakers removal 37 spare part number 13 37 static electricity 19 storage product description 1 system board removal 34 spare part numbers 13 34 T touchpad removal 33 spare part number 13 33 touchpad cable spare part number 33 Touchpad zone identifying 7 transporting guidelines 21 traveling with the ...

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