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 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 Chrome, Chrome OS, Chromebook, Google, and bound by the terms of the HP End User License Not all features are available in all editions or Google Drive are trademarks of Google LLC.
  • 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.
  • Page 4 Safety warning notice...

  • Page 5: Table Of Contents

    Table of contents 1 Product description ............................1 2 Components ..............................3 Right side ................................3 Left side ................................. 4 Display ..................................5 Bottom ................................... 6 Keyboard area ................................ 6 Touchpad components ........................6 Button ..............................7 Special keys ............................8 Labels ..................................
  • Page 6 Keyboard/top cover ........................... 21 Touchpad cable ..........................23 Touchpad ............................24 Battery ............................... 25 WLAN module ............................ 27 Speakers ............................28 USB board ............................29 System board ............................ 30 Heat sink ............................32 Display assembly ..........................33 6 Backing up, resetting, and recovering ......................41 Backing up ................................

  • Page 7: Product Description

    Hot plug/unplug and autodetect for correct output to wide-aspect vs. standard aspect video Audio-out (headphone)/audio-in (microphone) combo jack USB 3.2 Gen 1 Type C (2) (supports charging, power delivery, video, data; 1 right., 1 left) USB 3.2 Gen 1 Type A (2) (supports HP Sleep & Charge; 1 right, 1 left)
  • Page 8 Table 1-1 Product components and their descriptions (continued) Category Description Keyboard/pointing Keyboard devices Full size, textured, island style, standard notebook keyboard Touchpad Clickpad Multitouch gestures enabled Taps enabled as default Power requirements Battery 2 cell, 47 Whr, long life AC adapter 45 W, USB Type-C straight type, nPFC Power cord C5, 1 m...

  • Page 9: Components

    Components Your computer features top-rated components. This chapter provides details about your components, where they are located, and how they work. Right side 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...

  • Page 10: Left Side

    Table 2-1 Right-side components and their descriptions (continued) Component Description AC adapter and battey light White: The AC adapter is connected and the battery is fully ● charged. Amber: The AC adapter is connected and the battery is ● charging. Off: The battery is not charging.

  • Page 11: Display

    Table 2-2 Left-side components and their descriptions (continued) Component Description Connects a display device that has a USB Type-C connector, providing DisplayPort output. NOTE: Cables, adapters, or both (purchased separately) may be required. USB SuperSpeed port Connects a USB device, provides high-speed data transfer, and (for select products) charges small devices when the computer is on or in Sleep mode.

  • Page 12: Bottom

    Table 2-3 Display components and their descriptions (continued) Component Description For wireless regulatory notices, see the section of the Regulatory, Safety, and Environmental Notices that applies to your country or region. Bottom Identify the bottom component. Table 2-4 Bottom component and its description Component Description Speakers (2)

  • Page 13: Button

    Table 2-5 Touchpad components and their descriptions Component Description Touchpad zone Reads your finger gestures to move the pointer or activate items on the screen. Button Identify the computer button. Keyboard area...

  • Page 14: Special Keys

    Table 2-6 Button and its description Description Component Power button When the computer is off, press the button briefly to turn on the ● computer. When the computer is on, press the button briefly to initiate Sleep. ● ● When the computer is in the Sleep state, press the button briefly to exit Sleep (select products only).

  • Page 15: Labels

    Your service label information order may vary by country and might not include the wording "Model" due to the country regulation. Table 2-8 Service label components Component HP product name Model number Warranty period Product ID Serial number Regulatory label(s)—Provide(s) regulatory information about the computer.
  • Page 16 Chapter 2 Components...

  • 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: Display Assembly Subcomponents

    Table 3-1 Computer major component descriptions and part numbers Item Component Spare part number Display assembly not available as a spare part NOTE: Display assemblies are available only at the subcomponent level. Keyboard/top cover L99855-xx1 (3a) Touchpad (does not include cable) M03968-001 (3b) Touchpad bracket...
  • Page 19 Table 3-2 Display component descriptions and part numbers Item Component Spare part number Display bezel L99851-001 Camera module M01189-001 Display panel bracket not available as a spare part Display panel Nontouch L99858-001 Touch L99859-001 Display cable Nontouch L99853-001 Touch L99852-001 Display hinges (right and left) M01188-001 Camera cable (included in Cable Kit)

  • Page 20: 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 AC adapters (45 W, nPFC, USB Type-C) L43407-001 Screw Kit L99854-001 Rubber Kit (includes camera module rubber and touchpad backet rubber) L20220-001 Cable Kit (includes camera cable, touchpad cable, and USB board cables) L14906-001...

  • Page 21: 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: Nonconductive, nonmarking pry tool ● Magnetic Phillips P1 screwdriver ●...

  • Page 22: Workstation Guidelines

    IMPORTANT: Drives are fragile components. Handle them 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.

  • Page 23: Generating Static Electricity

    IMPORTANT: To prevent damage to the device when you remove or install 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 Personal grounding methods and equipment on page Avoid touching pins, leads, and circuitry.

  • Page 24: Personal Grounding Methods And Equipment

    ● foam. Use field service tools, such as cutters, screwdrivers, and vacuums, that are conductive. ● Recommended materials and equipment HP recommends certain materials and equipment to prevent static electricity. ● Antistatic tape ● Antistatic smocks, aprons, or sleeve protectors Conductive bins and other assembly or soldering aids ●...

  • Page 25: Packaging And Transporting Guidelines

    Static-dissipative table or floor mats with hard tie to ground ● ● Field service kits ● Static awareness labels ● Wrist straps and footwear straps providing 1 MΩ ±10% resistance ● Material handling packages ● Conductive plastic bags ● Conductive plastic tubes Conductive tote boxes ●...
  • Page 26 Chapter 4 Removal and replacement procedures preliminary requirements...

  • Page 27: Removal And Replacement Procedures For Authorized Service Provider Parts

    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 45 screws when you service the parts described in this chapter.
  • Page 28 Table 5-1 Keyboard/top cover description and part number (continued) Description Spare part number Keyboard/top cover for use internationally L99855-B31 Keyboard/top cover for use in Russia L99855-251 Keyboard/top cover for use in Spain L99855-071 Keyboard/top cover for use in the United Kingdom L99855-031 Keyboard/top cover for use in the United States L99855-001...

  • Page 29: Touchpad Cable

    Remove the keyboard/top cover from the computer (5). To replace the keyboard/top cover, reverse the removal procedures. Touchpad cable To remove the touchpad cable, use this procedure and illustration. NOTE: The TouchPad spare part kit does not includes the touchpad cable. The touchpad cable is included in the Cable Kit, spare part number L14906-001, and includes double-sided adhesive.

  • Page 30: Touchpad

    Position the keyboard/top cover upside down with the front toward you. Release the touchpad cable (1) from the adhesive that secures it to the keyboard/top cover. Disconnect the touchpad cable from the ZIF connector on the touchpad (2). Reverse this procedure to install the touchpad cable. Touchpad To remove the touchpad, use this procedure and illustration.

  • Page 31: Battery

    Remove the three Phillips M2.0 × 2.2 broad head screws (3) that secure the touchpad to the keyboard/top cover. Remove the touchpad bracket (4), and then remove the touchpad from the keyboard/top cover (5). Reverse this procedure to install the touchpad. Battery To remove the battery, use this procedure and illustration.
  • Page 32 WARNING! To reduce potential safety issues, use only the user-replaceable battery provided with the computer, a replacement battery provided by HP, or a compatible battery purchased from HP. IMPORTANT: Removing a battery that is the sole power source for the computer can cause loss of information.

  • Page 33: Wlan Module

    Remove the battery from the computer (2). To install the battery, reverse the removal procedures. WLAN module To remove the WLAN module, use this procedure and illustration. Table 5-5 WLAN module description and part number Description Spare part number Intel Dual Band Wireless-AC 7265 802.11 AC 2 × 2 Wi-Fi + Bluetooth 4.2 Combo Adapter 901229-855 IMPORTANT: To prevent an unresponsive system, replace the wireless module only with a wireless module...

  • Page 34: Speakers

    Remove the Phillips M2.0 × 2.5 screw (2), and then remove the WLAN module (3). NOTE: The #1 white WLAN antenna cable connects to the WLAN module #1 Main terminal. The #2 black WLAN antenna cable connects to the WLAN module #1 Aux terminal. If the WLAN antenna is not connected to the terminal on the WLAN module, a protective sleeve must be installed on the antenna connector, as shown in the following illustration.

  • Page 35: Usb Board

    Table 5-6 Speaker description and part number Description Spare part number Speaker Kit L14920-001 Before removing the speakers, follow these steps: Prepare the computer for disassembly (Preparation for disassembly on page 21). Remove the keyboard/top cover (Keyboard/top cover on page 21).

  • Page 36: System Board

    Before removing the USB board, follow these steps: Prepare the computer for disassembly (Preparation for disassembly on page 21). Remove the keyboard/top cover (Keyboard/top cover on page 21). Disconnect the battery cable (see Battery on page 25). Remove the USB board: Disconnect the two cables from the ZIF connectors on the USB board (1).
  • Page 37 Prepare the computer for disassembly (Preparation for disassembly on page 21). Remove the keyboard/top cover (Keyboard/top cover on page 21). Disconnect the battery cable from the system board (see Battery on page 25). Remove the screws from the left hinge, and then rotate the hinge upward (see Display assembly on page 33).

  • Page 38: Heat Sink

    Remove the system board (4) by sliding it up and to the left at an angle. NOTE: When replacing the system board, be sure to remove the heat sink from the defective system board and install it on the replacement system board. Reverse this procedure to install the system board.

  • Page 39: Display Assembly

    Remove heat sink (2). Thoroughly clean the thermal material from the surfaces of the heat sink and the system board components each time the heat sink is removed. Thermal paste is used on the system board (1) and on the heat sink component that services it (2). Reverse this procedure to install the heat sink.
  • Page 40 Prepare the computer for disassembly (Preparation for disassembly on page 21). Remove the keyboard/top cover (Keyboard/top cover on page 21). Disconnect the battery cable from the system board (see Battery on page 25). Remove the display assembly: Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module. NOTE: The WLAN antenna cable labeled 1/MAIN connects to the WLAN module Main terminal.
  • Page 41 Release the top edge of the display bezel (1) from the display assembly. Release the left and right edges of the display bezel (2) from the display assembly. CAUTION: There is double-sided adhesive (3) on the inside edge of the display bezel bottom edge.
  • Page 42 Disconnect the cable (2) from the camera module. The camera module is available as spare part number M01189-001. If you need to remove the display panel: Remove the six Phillips M2.0 × 2.8 screws (1) that secure the display panel and display panel bracket to the display back cover.
  • Page 43 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. Remove the display panel (3). Display panels are available as the following spare part numbers: L99858-001: Nontouch panel L99859-001: Touch panel If you need to remove the display back cover, remove the six Phillips M2.0 ×...
  • Page 44 Remove the display cable (1) from the adhesive that secures it to the display back cover, and then release the display cable from the retention clips (2) and routing channel built into the display back cover. Display cables are available as the following spare part numbers: L99852-001: Touch panel L99853-001: Nontouch panel If you need to remove the hinges from the display back cover:...
  • Page 45 If you need to remove the antennas from the display back cover: Remove the antenna cables from the clips along the left and top of the display back cover (1). Peel the antennas from the cover to remove them (2). The antennas are available as spare part number L52273-001.
  • Page 46 Chapter 5 Removal and replacement procedures for authorized service provider parts...

  • Page 47: 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 48: Creating Recovery Media

    Creating recovery media Recovery media is used to recover the original operating system and software programs that were installed at the factory. Recovering the Chrome operating system To recover the Chrome operating system on your computer using the recovery media you created: Setting up your computer after a reset or recovery After a reset or recovery is complete, perform the initial setup process.

  • Page 49: Specifications

    Specifications This chapter provides specifications for your computer. Computer specifications This section provides specifications for your computer. When traveling 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 U.S.
  • Page 50 Table 7-2 Display specifications (continued) Metric U.S. Resolution 1366 × 768 (HD) Surface treatment Antiglare (nontouch) Brightview (touch) Brightness 220 nits Viewing angle SVA (nontouch) UWVA (touch) Backlight WLED Display panel interface Chapter 7 Specifications...

  • Page 51: 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 3-conductor power cord set included with the computer meets the requirements for use in the country or region where the equipment is purchased.
  • Page 52 Table 8-1 Power cord requirements for specific countries and regions (continued) Country/region Accredited agency Applicable note number India Israel Italy Japan The Netherlands KEMA New Zealand SANZ Norway NEMKO The People's Republic of China Saudi Arabia SASO Singapore South Africa SABS South Korea Sweden...

  • Page 53: 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 54 Chapter 9 Recycling...

  • Page 55: Index

    Index display bezel AC adapter and battery light, illustrated 12 illustrated parts catalog 11 identifying spare part number 12 install lights display cable Chromebook Recovery Utility 41 AC adapter and battery 4 illustrated 12 Recovery Utility 41 AC adapter, spare part numbers 14 spare part number 12 internal microphones, identifying 5 Audio-out (headphone)/Audio-in...
  • Page 56 power button, idenitfying 8 system board power connector illustrated 11 identifying 4 removal 30 power connector and port 4 spare part number 11 power cord spare part numbers 30 requirements for all countries top cover/keyboard requirements for specific illustrated 11 countries and regions 45 spare part number 11 set requirements 45...

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