HP Chromebook 11a Maintenance And Service Manual
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HP Chromebook 11a Maintenance And Service Manual

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Maintenance and Service Guide
SUMMARY
This guide provides information about spare parts, removal and replacement of parts, security, backing up, and more.

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Summary of Contents for HP Chromebook 11a

  • Page 1 Maintenance and Service Guide SUMMARY This guide provides information about spare parts, removal and replacement of parts, security, backing up, and more.
  • Page 2 HP Inc. under license. of the HP End User License Agreement (EULA). If To access the latest user guides, go to Chrome, Chromebook, Chrome OS, Google, and you do not accept these license terms, your sole http://www.hp.com/support, and follow the...
  • Page 3 Safety warning notice Reduce the possibility of heat-related injuries or of overheating the computer by following the practices described. WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer 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.
  • Page 4 Safety warning notice ENWW...

  • Page 5: Table Of Contents

    Personal grounding methods and equipment ....................20 Grounding the work area ..........................20 Recommended materials and equipment ..................... 21 Cleaning your computer ................................ 22 Enabling HP Easy Clean (select products only) .................... 22 Removing dirt and debris from your computer .................... 22 ENWW...
  • Page 6 Cleaning your computer with a disinfectant ....................23 Caring for wood veneer (select products only) ..................... 24 Packaging and transporting guidelines ..........................24 Accessing support information ............................24 5 Removal and replacement procedures for authorized service provider parts ................27 Component replacement procedures ..........................

  • Page 7: Product Description

    On-board (nonupgradeable) support for embedded MultiMedia Controller (eMMC) 32 GB v5.0 Audio and video Integrated dual speakers Support for HD audio Integrated HP HD camera 720p by 30 frames per second Ports Audio-out (headphone)/audio-in (microphone) combo jack HDMI v1.4b port USB Type-A ports (2) USB Type-C®...
  • Page 8 Product components and their descriptions (continued) Category Description Power requirements Battery: 2 cell, 47 WHr, HP Long Life Smart AC adapter: 45 W, non-PFC, standard, USB Type–C, straight Power cord: C5, 1.0 m (3.3 ft) Security Titan C security chip...

  • Page 9: Components

    Components This is the Components chapter from the user guide. Right Use the illustration and table to identify the components on the right side of the computer. Table 2-1 Right-side components and their descriptions Component Description Audio-out (headphone)/Audio-in Connects optional powered stereo speakers, headphones, (microphone) combo jack earbuds, a headset, or a television audio cable.

  • Page 10: Left

    Table 2-1 Right-side components and their descriptions (continued) Component Description microSD™ memory card reader Reads optional memory cards that store, manage, share, or access information. To insert a card: Hold the card label-side up, with the connectors facing the computer. Insert the card into the memory card reader, and then press in on the card until it is firmly seated.

  • Page 11: Display

    Table 2-2 Left-side components and their descriptions Component Description Security cable slot Attaches an optional security cable to the computer. NOTE: The security cable is designed to act as a deterrent, but it might not prevent the computer from being mishandled or stolen.

  • Page 12: Touchpad

    Table 2-3 Display components and their descriptions Component Description WLAN antennas* Send and receive wireless signals to communicate with wireless local area networks (WLANs). Camera light On (white): The camera is in use. Off: The camera is turned off by the software. Camera Allows you to video chat, record video, and record still images.

  • Page 13: Power Key

    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. Power key Use the illustration and table to identify the power key. ENWW Power key...

  • Page 14: Special Keys

    Table 2-5 Power key and its description Component Description Power key ● When the computer is off, press the key briefly to turn on the computer. When the computer is in the Sleep state, press the key briefly to ● exit Sleep (select products only).
  • Page 15 Table 2-7 Bottom component and description Components Description Speakers (2) Produce sound. ENWW Bottom...
  • Page 16 Chapter 2 Components ENWW...

  • Page 17: Illustrated Parts Catalog

    To identify the computer major components, use this illustration and table. NOTE: HP continually improves and changes product parts. For complete and current information about supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions. 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.
  • Page 18 Table 3-1 Computer major component descriptions and part numbers Item Component Spare part number Display assembly NOTE: Display spare parts are available as subcomponents, not as whole units. Display subcomponent spare parts are available. For spare part information, see (29.6 mm) 11.6 in display assembly subcomponents on page Top cover/keyboard for use in the United States (includes keyboard cable): L92334-001 Chapter 3 Illustrated parts catalog...

  • Page 19: (29.6 Mm) 11.6 In Display Assembly Subcomponents

    Table 3-1 Computer major component descriptions and part numbers (continued) Item Component Spare part number (3a) Touchpad L14922-001 NOTE: The touchpad spare part kit does not include the touchpad bracket or touchpad cable. The touchpad bracket is available using spare part number L18300-001. The touchpad cable is included in the Cable Kit, spare part number L14906-001.
  • Page 20 Table 3-2 Display component descriptions and part numbers Item Component Spare part number Display bezel L14912-001 Webcam/microphone module (includes double-sided adhesive) M54840-001 NOTE: The webcam/microphone module spare part kit does not include the webcam/microphone module cable. The webcam/microphone module cable is included in the Cable Kit, spare part number L14906-001.

  • Page 21: Miscellaneous Parts

    Miscellaneous parts To identify the miscellaneous parts, use this table. Table 3-3 Miscellaneous part descriptions and part numbers Component Spare part number 45 W, USB Type-C, AC adapter (non-PFC, 1.8 m, 3 pin) L43407-001 Cable Kit (includes connector board high-speed cable, connector board low-speed cable, touchpad cable, L14906-001 and webcam/microphone module cable) Power cord for use in North America (C5, 1.0 m, conventional with sticker)
  • Page 22 Chapter 3 Illustrated parts catalog ENWW...

  • Page 23: Removal And Replacement Procedures Preliminary Requirements

    Removal and replacement procedures preliminary requirements Use this information to properly prepare to disassemble and reassemble the computer. Tools required You need the following tools to complete the removal and replacement procedures: Forceps or tweezers ● ● Keyboard removal tool Magnetic Phillips P0 screwdriver ●...

  • Page 24: Service Considerations

    Service considerations The following sections include some of the considerations that you must keep in mind during disassembly and assembly procedures. 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 Using excessive force during disassembly and reassembly can damage plastic parts.

  • Page 25: Electrostatic Discharge Information

    Electrostatic discharge information A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) might not appear to be affected at all and can work perfectly throughout a normal cycle.

  • Page 26: Preventing Electrostatic Damage To Equipment

    Preventing electrostatic damage to equipment Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity. The following packaging and grounding precautions are necessary to prevent static electricity damage to electronic components. To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes. ●...

  • Page 27: Recommended Materials And Equipment

    Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● Avoid contact with pins, leads, or circuitry. ● Recommended materials and equipment HP recommends certain materials and equipment to prevent static electricity. Antistatic tape ● Antistatic smocks, aprons, or sleeve protectors ●...

  • Page 28: Cleaning Your Computer

    Keep liquids away from the product. Avoid getting moisture in any openings. If liquid makes its way inside your HP product, it can cause damage to the product. Do not spray liquids directly on the product. Do not use aerosol sprays, solvents, abrasives, or cleaners containing hydrogen peroxide or bleach that might damage the finish.

  • Page 29: Cleaning Your Computer With A Disinfectant

    Keep liquids away from the product. Avoid getting moisture in any openings. If liquid makes its way inside your HP product, it can cause damage to the product. Do not spray liquids directly on the product. Do not use aerosol sprays, solvents, abrasives, or cleaners containing hydrogen peroxide or bleach that might damage the finish.

  • Page 30: Caring For Wood Veneer (Select Products Only)

    When grounding is not possible, use an ionizer to dissipate electric charges. Accessing support information Use this information to find the HP support that you need. Chapter 4 Removal and replacement procedures preliminary requirements ENWW...
  • Page 31 Search collect Chrome device logs. Technical bulletins To locate technical bulletins: Go to www.hp.com. Place the cursor over Problem solving to display more options. Select Support & Troubleshooting. Type the serial number, product number, or product name to go to the product support page.
  • Page 32 Service consideration Path to access information Repair professionals To locate repair professionals: Go to www.hp.com. Place the cursor over Support resources to display more options. Select Authorized service providers. Component and diagnosis information, failure To locate diagnosis information and actions: detection, and required action Go to http://www.hp.com/go/techcenter/pcdiags.

  • Page 33: Removal And Replacement Procedures For Authorized Service Provider Parts

    Removal and replacement procedures for authorized service provider parts This chapter provides 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. 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.

  • Page 34: Component Replacement Procedures

    NOTE: HP continually improves and changes product parts. For complete and current information about supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions. You must remove, replace, or loosen as many as 44 screws when you service the parts described in this chapter.

  • Page 35: Preparation For Disassembly

    Preparation for disassembly Top cover/keyboard To remove the top cover/keyboard, use this procedure and illustration. NOTE: The top cover/keyboard spare part kit includes the keyboard cable. Table 5-1 Top cover/keyboard description and part number Description Spare part number Top cover/keyboard for use in the United States (includes keyboard cable) L92334-001 Before removing the top cover/keyboard, prepare the computer for disassembly (see Preparation for...

  • Page 36: Touchpad Cable

    Release the ZIF connector (4) to which the TouchPad cable is connected, and then disconnect the TouchPad cable from the system board. Reverse this procedure to install the top cover/keyboard. Touchpad cable To remove the touchpad cable, use this procedure and illustration. NOTE: The touchpad cable is included in the Cable Kit, spare part number L14906-001.

  • Page 37: Touchpad

    Release the ZIF connector (2) to which TouchPad cable is connected, and then disconnect the TouchPad cable from the TouchPad.. Remove the TouchPad cable. Reverse this procedure to install the touchpad cable Touchpad To remove the touchpad, use this procedure and illustration. Table 5-2 Touchpad description and part numbers Description...

  • Page 38: Battery

    Remove the three Phillips M2.0×2.7 screws (3) that secure the TouchPad and TouchPad bracket to the keyboard/top cover. Remove the three Phillips M2.0×2.2 broad head screws (4) that secure the TouchPad to the keyboard/top cover. Remove the TouchPad bracket (5). The TouchPad bracket is available using spare part number L18300-001.
  • Page 39 Release the tape (1) that secures the battery cable connector to the system board. The battery connector tape is available using spare part number L14905-001. Disconnect the battery cable from the system board (2). Remove the two Phillips M2.0×4.1 screws (1) that secure the battery to the bottom cover. Remove the battery (2).

  • Page 40: Speakers

    Reverse this procedure to install the battery. Speakers To remove the speakers, use this procedure and illustration. Table 5-4 Speaker description and part number Description Spare part number Speakers (include left and right speakers and cables) L14920-001 Before removing the speakers, follow these steps: Prepare the computer for disassembly (see Preparation for disassembly on page 29).

  • Page 41: Connector Board Cables

    Connector board cables To remove the connector board cables, use this procedure and illustration. NOTE: The connector board cables are included in the Cable Kit, spare part number L14906-001, and include double-sided adhesive. Before removing the connector board cables, follow these steps: Prepare the computer for disassembly (see Preparation for disassembly on page 29).
  • Page 42 Table 5-5 Connector board description and part number Description Spare part number Connector board (includes HDMI port and USB port) L14923-001 NOTE: The connector board spare part kit does not include the connector board cables. The connector board cables are included in the Cable Kit, spare part number L14906-001.

  • Page 43: System Board

    System board To remove the system board, use these procedures and illustrations. Table 5-6 System board description and part number Description Spare part number System board equipped with an Intel Celeron N3350 1.1 GHz (SC Turbo up to 2.4 GHz) processor (2400 MHz FSB, dual L15851-001 core, 2 MB L2 cache, 6W), 4 GB of system memory, and 32 GB of eMMC system storage (includes a graphics subsystem with UMA memory, replacement thermal material, and the Google Chrome operating system)
  • Page 44 Disconnect the speaker cable (5) from the system board. Remove the six Phillips M2.0×4.1 screws (1) that secure the system board to the bottom cover. Remove the system board bracket (2). The system board bracket is available using spare part number L14359-001. Lift the left edge of the system board (3) until it rests at an angle.

  • Page 45: Heat Sink

    Heat sink To remove the heat sink, use these procedures and illustrations. Table 5-7 Heat sink description and part number Description Spare part number Heat sink (includes replacement thermal material) 928840-001 Before removing the heat sink, follow these steps: Prepare the computer for disassembly (see Preparation for disassembly on page 29).

  • Page 46: 29.5 Cm (11.6 In) Display Assembly

    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 included with the heat sink and system board spare part kits. The following illustration shows the replacement thermal material locations.
  • Page 47 Release the display webcam/microphone cable from the retention clips (3) and routing channels built into the bottom cover. Release the adhesive strip (4) that secures the display panel cable to the system board. Disconnect the display panel cable (5) from the system board. Release the display panel cable from the retention clips (6) and routing channels built into the bottom cover.
  • Page 48 Remove the display bezel (5). The display bezel is available using spare part number L14912-001. If it is necessary to replace the webcam/microphone module: Remove the display bezel. Detach the webcam/microphone module (1) from the display back cover. (The webcam/microphone module is attached to the display back cover with double-sided adhesive.) Chapter 5 Removal and replacement procedures for authorized service provider parts ENWW...
  • Page 49 Disconnect the webcam/microphone module cable (2) from the webcam/microphone module. Remove the webcam/microphone module. The webcam/microphone module is available using spare part number M54840-001. If it is necessary to replace the display panel: Remove the display bezel. Remove the six Phillips PM2.0×2.8 screws (1) that secure the display panel and display panel bracket to the display back cover.
  • Page 50 Lift the top edge of the display panel (3) and swing it up and forward until it rests upside down on the computer. Release the adhesive support strip (1) that secures the display panel cable connector to the display panel. Disconnect the display panel cable (2) from the display panel.
  • Page 51 Remove the display panel (3). The display panel is available using spare part number M54841-001. If it is necessary to replace the display back cover: Remove the display bezel. Remove the display panel. Remove the six Phillips PM2.0×2.9 broad head screws (1) that secure the back cover to the display hinges.
  • Page 52 Remove the back cover (2). The back cover is available using spare part number M54838-001, and includes the webcam/ microphone module cable and wireless antenna cables and transceivers. If it is necessary to replace the display panel cable: Remove the display bezel. Remove the display panel.
  • Page 53 Release the display panel cable from the retention clips (2) and routing channel built into the display back cover. Remove the display panel cable. The display panel cable is available using spare part number L14915-001, and includes double-sided adhesive: If it is necessary to replace the display hinges: Remove the display bezel.
  • Page 54 Remove the display hinges (3). The display hinges are available using spare part number L14907-001. Reverse this procedure to reassemble and replace the display assembly. Chapter 5 Removal and replacement procedures for authorized service provider parts ENWW...

  • Page 55: Backing Up, Resetting, And Recovering

    Backing up, resetting, and recovering This chapter provides information about processes that are standard procedure for most products. Backing up You can back up your data to an optional USB flash drive or SD memory card or through Google Drive. For detailed information about creating a backup, go to http://www.support.google.com.

  • Page 56: Recovering

    Recovering When your Chrome OS™ operating system is not working properly, you can perform a recovery. A recovery reinstalls the operating system and software programs and restores the original factory settings. Locally saved files and saved networks are deleted for all accounts. Your Google Accounts and any data synced to your Google Drive™...
  • Page 57 ENWW Erase and reformat the recovery media...
  • Page 58 Chapter 6 Backing up, resetting, and recovering ENWW...

  • Page 59: Specifications

    Specifications This chapter provides specifications for your computer. Computer specifications This section provides specifications for your computer. When you travel with your computer, the computer dimensions and weights, as well as input power ratings and operating specifications, provide helpful information. Table 7-1 Computer specifications Metric...
  • Page 60 Chapter 7 Specifications ENWW...

  • Page 61: Power Cord Set Requirements

    Power cord set requirements This chapter provides power cord requirements for countries and regions. The wide-range input feature of the computer permits it to operate from any line voltage from 100 V ac to 120 V ac, or from 220 V ac to 240 V ac. The three-conductor power cord set included with the computer meets the requirements for use in the country or region where the equipment is purchased.
  • Page 62 Table 8-1 Power cord requirements for specific countries and regions (continued) Country/region Accredited agency Applicable note number Chile Denmark DEMKO Finland FIMKO France Germany India Israel Italy Japan Netherlands KEMA New Zealand SANZ Norway NEMKO People's Republic of China Saudi Arabia SASO Singapore South Africa...
  • Page 63 Table 8-1 Power cord requirements for specific countries and regions (continued) Country/region Accredited agency Applicable note number United States The flexible cord must be Type HO5VV-F, three-conductor, 0.75 mm² 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 SVT/SJT or equivalent, No.
  • Page 64 Chapter 8 Power cord set requirements ENWW...

  • Page 65: Recycling

    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 website at http://www.hp.com/recycle.
  • Page 66 Chapter 9 Recycling ENWW...

  • Page 67: Index

    22 factory reset 49 caring for wood veneer 24 lights disinfecting 23 AC adapter and battery 4 HP Easy Clean 22 grounding methods 17, 19, 20 camera 6 removing dirt and debris 22 guidelines components packaging 17, 24...
  • Page 68 packaging guidelines 17, 24 top cover/keyboard pointing device, product description removal 29 spare part number 29 ports touchpad product description 1 removal 31 USB SuperSpeed 4, 5 spare part number 31 USB Type-C power connector 4, touchpad cable removal 30 power cord spare part number 30 requirements for all countries 55...

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