HP 14-ak099 Manual
HP Chromebook (model numbers 14-ak000
through 14-ak099)
HP Chromebook 14 G4
Maintenance and Service Guide
IMPORTANT! This document is intended for
HP authorized service providers only.
© Copyright 2015 HP Development Company,
L.P.
Android is a U.S. registered trademark of
Android Corporation. Bluetooth is a trademark
owned by its proprietor and used by HP under
license. NVIDIA is a trademark of NVIDIA
Corporation in the U.S. and other countries. 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 2015
Document Part Number: 828939-001
Product notice
This user 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 full refund subject to the
refund policy of your seller.
For any further information or to request a full
refund of the price of the computer, please
contact your seller.
Safety warning notice
WARNING! To reduce the possibility of heat-related 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, at 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 airow. 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 dened by the International Standard for Safety of Information Technology
Equipment (IEC 60950).
iii
iv Safety warning notice
Table of contents
1 Product description ....................................................................................................................................... 1
2 External component identication .................................................................................................................. 3
Display .................................................................................................................................................................... 3
Left side ................................................................................................................................................................. 4
Right side ............................................................................................................................................................... 5
Top .......................................................................................................................................................................... 6
TouchPad ............................................................................................................................................. 6
Buttons ................................................................................................................................................ 7
Bottom ................................................................................................................................................................... 8
Labels ..................................................................................................................................................................... 9
3 Illustrated parts catalog .............................................................................................................................. 10
Computer major components .............................................................................................................................. 10
Display assembly subcomponents ...................................................................................................................... 14
Rubber Kit ............................................................................................................................................................ 16
Miscellaneous parts ............................................................................................................................................. 16
4 Removal and replacement preliminary requirements ..................................................................................... 18
Tools required ...................................................................................................................................................... 18
Service considerations ......................................................................................................................................... 18
Plastic parts ....................................................................................................................................... 18
Cables and connectors ...................................................................................................................... 19
Drive handling ................................................................................................................................... 19
Grounding guidelines ........................................................................................................................................... 19
Electrostatic discharge damage ........................................................................................................ 19
Packaging and transporting guidelines .......................................................................... 21
Workstation guidelines ................................................................................ 21
5 Removal and replacement procedures for Authorized Service Provider parts ................................................... 23
Component replacement procedures .................................................................................................................. 23
Keyboard/top cover ........................................................................................................................... 23
TouchPad ........................................................................................................................................... 27
Power connector cable ...................................................................................................................... 29
USB board .......................................................................................................................................... 30
WLAN/Bluetooth combo card ............................................................................................................ 31
v
Heat sink ............................................................................................................................................ 33
Display assembly ............................................................................................................................... 35
Battery ............................................................................................................................................... 42
Speakers ............................................................................................................................................ 44
System board .................................................................................................................................... 45
6 Specications .............................................................................................................................................. 47
7 Using HP PC Hardware Diagnostics (UEFI) ....................................................................................................... 48
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................... 48
8 Power cord set requirements ........................................................................................................................ 50
Requirements for all countries ............................................................................................................................ 50
Requirements for specic countries and regions ................................................................................................ 50
9 Statement of memory volatility .................................................................................................................... 52
Nonvolatile memory usage ................................................................................................................................. 56
Questions and answers ....................................................................................................................................... 58
Using HP Sure Start (select models only) ............................................................................................................ 59
10 Recycling .................................................................................................................................................. 60
Index ............................................................................................................................................................. 61
vi
1 Product description
Category Description
Product Name HP Chromebook (model numbers 14-ak000 through 14-ak099)
HP Chromebook 14 G4
Processor Intel Celeron N2940 (1.83GHz, turbo up to 2.25GHz), 1333MHz/1MB L2, Quad SDP4.5W, BGA
Intel Celeron N2840 (2.16GHz, turbo up to 2.58GHz), 1333MHz/1MB L2, Dual SDP4.5W, BGA
Chipset Integrated SoC processor controller hub (PCH) for use on all computer models
Graphics Internal Graphics: Intel HD graphics
Support for HD decode, DX11, and HDMI
Panel Non-touch
14.0-in, high-denition (HD), WLED, anti-glare (1366×768), at (3.6 mm), SVA, 220 nits typical
brightness
14.0-in full high-denition (FHD), WLED, anti-glare (1920x1080), slim (3.0 mm), UWVA, 220 nits,
eDP, 220 nits typical brightness
* FHD panel requires N2940 processor and 4G memory.
Memory Onboard system memory
Supports up to 4096-MB maximum on-board system memory
DDR3L-1600 single channel support (DDR3L-1600 downgrade to DDR3L-1333) (for 2 GB memory)
DDR3L-1600 dual channel support (DDR3L-1600 downgrade to DDR3L-1333) (for 4 GB memory)
Storage Supports 16- and 32-GB embedded MultiMedia Controller (eMMC)
Audio and video HP TrueVision HD slim webcam, 1280×720 by 30 frames per second; xed (no tilt), with activity
LED
Single digital microphone with appropriate echo-cancellation, noise-suppression software
Two speakers
HD audio
Wireless Integrated wireless local area network (WLAN) options with dual antennas
Intel Dual Band Wireless-AC 7260 802.11 ac 2x2 WiFi + BT 4.0 Combo Adapter
Intel Dual Band Wireless-N 7260AN 802.11 a/b/g/n 2x2 WiFi + BT 4.0 combo
External media cards HP Multi-Format Digital Media Card Reader
Supports micro SD/SDHC/SDXC up to UHS-I
Push-Push Insertion/Removal
Ports AC Smart Pin adapter plug (4.5 mm barrel)
Headphone/microphone combo jack
HDMI v1.4b supporting up to 1920×1080 @ 60Hz
USB 3.0 port (1)
1
Category Description
USB 2.0 ports (2)
Keyboard/pointing devices Full-sized, textured, island-style, Google keyboard (black) for use only on HP Chromebook 14 G4
Full-sized, textured, island-style, Google keyboard (white) for use only on HP Chromebook 14
Touchpad requirements:
Multitouch gestures enabled
Taps enabled as default
Power requirements Battery
Support for a 3-cell, 37-WHr battery
AC adapters
65-W, EM (for India and the People’s Republic of China)
45-W AC adapter (not for India or the People’s Republic of China)
1.0 meter power cord
Operating system Preinstalled: Google Chrome operating system
Serviceability End user replaceable part: AC adapter
2 Chapter 1 Product description
2 External component identication
Display
Component Description
(1) Internal display switch Turns o 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.
(2) WLAN antennas* Send and receive wireless signals to communicate with wireless local
area networks (WLANs).
NOTE: The position of the WLAN antennas may dier, depending
on model.
(3) Internal microphone Records sound.
(4) Webcam Records video, captures still photographs, and allows video
conferences and online chat by means of streaming video.
(5) Webcam light On: The webcam is in use.
*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.
Display 3
Left side
Component Description
(1) Security cable slot 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-
denition television, any compatible digital or audio
component, or a high-speed High-Denition Multimedia
Interface (HDMI) device.
(3) USB 3.0 charging (powered) port Connects an optional USB device, such as a keyboard, mouse,
external drive, printer, scanner or USB hub. Standard USB
ports will not charge all USB devices or will charge using a low
current. Some USB devices require power and require you to
use a powered port.
NOTE: USB charging ports can also charge select cell phones
and MP3 players, even when the computer is o.
(4) Audio-out (headphone)/Audio-in (microphone)
jack
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 putting on headphones, earbuds, or a headset.
NOTE: When a device is connected to the jack, the computer
speakers are disabled.
NOTE: Be sure that the device cable has 4-conductor
connector that supports both audio-out (headphone) and
audio-in (microphone).
(5) Micro 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 connectors facing the
slot, insert the card into the slot, and then push in on the
card until it is rmly seated.
To remove a card:
▲Press in on the card it until it pops out.
(6) Power light ●White: Computer is on.
●Blinking white: Computer is in Sleep mode.
4 Chapter 2 External component identication
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2
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