HP 655 Manual

HP 655 Notebook PC
Maintenance and Service Guide

© Copyright 2012 Hewlett-Packard
Development Company, L.P.
AMD, the AMD Arrow logo, and
combinations thereof, are trademarks of
Advanced Micro Devices, Inc. Bluetooth is a
trademark owned by its proprietor and used
by Hewlett-Packard Company under license.
Microsoft, Windows, and Windows Vista
are U.S. registered trademarks of Microsoft
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: May 2012
Document Part Number: 682651-001

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, 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).
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iv Safety warning notice

Table of contents
1 Product description ........................................................................................................... 1
2 External component identification ..................................................................................... 5
Finding your hardware and software information ......................................................................... 5
Display ................................................................................................................................... 5
Button ..................................................................................................................................... 7
Keys ....................................................................................................................................... 8
Lights ...................................................................................................................................... 9
TouchPad .............................................................................................................................. 10
Front ..................................................................................................................................... 10
Left side ................................................................................................................................ 11
Right side .............................................................................................................................. 13
Bottom .................................................................................................................................. 14
3 Illustrated parts catalog .................................................................................................. 15
Service tag ............................................................................................................................ 16
Computer major components ................................................................................................... 17
Display assembly subcomponents ............................................................................................. 21
Mass storage devices ............................................................................................................. 23
Miscellaneous parts ................................................................................................................ 24
Sequential part number listing .................................................................................................. 25
4 Removal and replacement procedures ............................................................................ 28
Preliminary replacement requirements ....................................................................................... 28
Tools required ......................................................................................................... 28
Service considerations ............................................................................................. 28
Plastic parts ............................................................................................. 28
Cables and connectors ............................................................................. 28
Drive handling ......................................................................................... 29
Grounding guidelines .............................................................................................. 29
Electrostatic discharge damage .................................................................. 29
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Packaging and transporting guidelines ........................................ 31
Component replacement procedures ........................................................................................ 33
Service tag ............................................................................................................. 33
Computer feet ......................................................................................................... 34
Battery ................................................................................................................... 35
Memory module ...................................................................................................... 36
WLAN module ........................................................................................................ 37
Keyboard ............................................................................................................... 39
Optical drive .......................................................................................................... 43
Hard drive ............................................................................................................. 45
RTC battery ............................................................................................................ 48
Top cover ............................................................................................................... 49
Power button board ................................................................................................. 52
TouchPad button board ............................................................................................ 53
Optical drive connector cable ................................................................................... 56
Speakers ................................................................................................................ 58
USB board ............................................................................................................. 60
System board ......................................................................................................... 62
Fan/heat sink assembly ........................................................................................... 64
Display assembly .................................................................................................... 67
Power connector cable ............................................................................................ 76
5 Using Setup Utility (BIOS) and System Diagnostics ........................................................... 78
Starting Setup Utility (BIOS) ..................................................................................................... 78
Updating the BIOS ................................................................................................................. 78
Determining the BIOS version ................................................................................... 79
Downloading a BIOS update .................................................................................... 79
Using System Diagnostics ........................................................................................................ 80
6 Specifications ................................................................................................................. 81
Computer specifications .......................................................................................................... 81
15.6-in, SVA, display panel display specifications ..................................................................... 82
Hard drive specifications ........................................................................................................ 83
7 Backup and recovery ...................................................................................................... 84
Restore ................................................................................................................................. 84
Creating recovering media ...................................................................................................... 85
Performing a system restore ..................................................................................................... 86
Restoring using the dedicated recovery partition (select models only) ............................. 86
Restoring using the recovery media ........................................................................... 87
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Changing the computer boot order ............................................................................ 87
Backing up and recovering your information ............................................................................. 88
Using Windows Backup and Restore ......................................................................... 89
Using Windows system restore points ........................................................................ 89
When to create restore points .................................................................... 89
Create a system restore point ..................................................................... 89
Restore to a previous date and time ............................................................ 90
8 Power cord set requirements .......................................................................................... 91
Requirements for all countries .................................................................................................. 91
Requirements for specific countries and regions ......................................................................... 92
9 Recycling ........................................................................................................................ 93
Index ................................................................................................................................. 94
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1 Product description
Category Description
Product Name HP 655 Notebook PC
Processors ●AMD® E2-1800 processor (1.70-GHz, 1333-MHz, 18 W, dual core; not
supported on computer models equipped with Windows® 7 Starter 32-bit
operating systems)
●AMD E1-1200 processor (1.40-GHz, 1066-MHz, 18 W, dual core; not
supported on computer models equipped with Windows 7 Starter 32-bit
operating systems)
●AMD E-300 processor (1.30-GHz, 1066-MHz, 18 W, dual core)
Processor is soldered to the system board
Chipset AMD A68M fusion controller hub (FCH)
Graphics Internal graphics:
●AMD Radeon™ 7340 Series Graphics on computer models equipped with an
AMD E2-1800 processor
●AMD Radeon 7310 Series Graphics on computer models equipped with an AMD
E1-1200 processor
●AMD Radeon HD 6310M Discrete-Class Graphics on computer models equipped
with an AMD E-300 processor
Supports HD decode, DX11, and HDMI
Panel 15.6-in, light-emitting diode (LED), SVA, HD, BrightView (1366×768) display; typical
brightness: 200 nits
All display assemblies include one or two wireless local area network (WLAN)
antenna cables
Supports low voltage differential signalling (LVDS)
1

Category Description
Memory Two customer-accessible/upgradable memory module slots
DDR3-1333-MHz single channel support (DDR3-1600 downgrade to DDR3-1333) on
computer models equipped with an AMD E2-1800 processor
DDR3-1066-MHz single channel support (DDR3-1600 downgrade to DDR3-1066) on
computer models equipped with an AMD E1-1200 or E-300 processor
Supports 8192-MB of system RAM in the following configurations:
●8192-MB (4096-MB×2; not supported on computer models equipped with a 32-
bit operating system)
●6144-MB (4096-MB+2048×1; not supported on computer models equipped with
a 32-bit operating system)
●4086-MB (4096-MB×1 or 2048×2; not supported on computer models equipped
with Windows 7, 32-bit operating system)
●2048-MB (2048×1; not supported on computer models equipped with Windows
7, 32-bit operating system)
Hard drive Supports 6.35-cm (2.5-in) hard drives in 9.5-mm (.37-in) and 7.0-mm (.28-in)
thicknesses (all hard drives use the same bracket)
Customer-accessible
Serial ATA
Supports the following hard drives:
●750-GB, 5400-rpm, 9.5-mm
●640-GB, 5400-rpm, 9.5-mm
●500-GB, 5400-rpm, 9.5-mm
●320-GB, 5400-rpm, 9.5-mm
Optical drive Fixed
Serial ATA
12.7-mm tray load
Supports DVD±RW Double-Layer with SuperMulti Drive
Supports zero power optical drive
Audio and video Two Altec-Lansing speakers
HD audio
Supports Microsoft premium requirements
VGA webcamera (fixed, no tilt with activity LED; 640×480 by 24 frames per second)
One digital microphone
Ethernet Integrated 10/100 network interface card (NIC)
Wireless Integrated wireless local area network (WLAN) options by way of wireless module
2 Chapter 1 Product description

Category Description
One or two WLAN antennas built into display assembly, varying by computer model
Support for the following WLAN formats:
●Atheros AR9565 802.11b/g/n 1×1 WiFi + BT4.0 Combo Adapter
●Atheros HB125 802.11b/g/n 1×1 WLAN module
●Atheros 9485GN 802.11b/g/n 1×1 WiFi and 3012 Bluetooth 4.0
Combo Adapter
●Broadcom 4313GN 802.11b/g/n 1×1 WiFi and 20702 Bluetooth 4.0
Combo Adapter
●Ralink RT5390F 802.11b/g/n 1×1 WLAN module
●Ralink RT5390R 802.11bg/n 1×1 WiFi Adapter
●Ralink RT3290LE 802.11b/g/n 1×1 WiFi and Bluetooth 4.0 Combo Adapter
External media cards HP Multi-Format Digital Media reader with push-push technology, supporting:
●Secure Digital (SD) Memory Card
●Secure Digital Extended Capacity (SDxC) Memory Card
●Secure Digital High Capacity (SDHC) Memory Card
●MultiMediaCard (MMC)
Ports ●Audio-in (mono microphone)
●Audio-out (stereo headphone)
●HDMI v1.4 supporting: up to 1920×1200 @ 60Hz
●HP Smart AC adapter
●RJ-45 (Ethernet Gigabit support with LED indicators)
●USB 2.0 ports on computer: 3 (2 on one side, 1 on other; USB port allocation: 3
for the computer, 1 for camera 1 for MiniCard)
●VGA (Dsub 15 pin) supporting: 2048×1536 external resolution @ 60 Hz, hot
plug and unplug and autodetection for correct output to wide-aspect vs. standard
aspect video
Keyboard/pointing devices Full-size (15.6-in.), textured, pocket keyboard, no numeric keypad
Gesture support: MultiTouch gestures enabled, two-finger scrolling, and pinch-zoom
as default
Taps enabled by default
Power requirements 65W RC, V, EM, 3-wire HP Smart AC adapter with localized cable plug support (3-
wire plug with ground pin, supports 3-pin DC connector)
Supports the following batteries:
●6-cell, 55-Wh, 2.55-Ah, Li-ion battery
●6-cell, 47-Wh, 2.20-Ah, Li-ion battery
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Category Description
Security Supports security cable lock
Operating system Preinstalled:
●Windows® 7 Home Basic 64-bit
●Windows 7 Home Premium 64-bit
●Windows 7 Starter 32-bit (not supported on computer models equipped with a
750-, 640-, or 500-GB hard drive)
●FreeDOS
Serviceability End user replaceable parts:
●AC adapter
●Battery
●Hard drive
●Memory module
●Optical drive
●WLAN module
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2 External component identification
Finding your hardware and software information
▲Select Start > Computer.
A list displays all the devices installed in your computer, including hard drive, optical drives, solid-state
drives (SSD), or a secondary hard drive.
To find out what software is included on your computer, select Start > All Programs.
Display
Item Component Description
(1) WLAN antennas (2)* Send and receive wireless signals to communicate
with WLANs.
(2) Internal microphone Records sound.
Finding your hardware and software information 5

Item Component Description
(3) Webcam Records video, captures still photographs, and allows
video conferences and online chat by means of
streaming video.
To use the webcam, select Start > All Programs >
Communication and Chat > CyberLink YouCam.
(4) 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. These notices are located in Help and Support.
6 Chapter 2 External component identification

Button
Component Description
Power button ●When the computer is off, press the button 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.
●When the computer is in Hibernation, press
the button briefly to exit Hibernation.
CAUTION: Pressing and holding down the power
button will result in the loss of unsaved information.
If the computer has stopped responding and Microsoft
Windows shutdown procedures are ineffective, press and
hold the power button down for at least 5 seconds to turn
off the computer.
To learn more about your power settings, select Start >
Control Panel > System and Security > Power
Options.
Button 7

Keys
Item Component Description
(1) esc key Displays system information when pressed in combination
with the fn key.
(2) fn key Used in conjunction with hotkeys.
(3) Windows logo key Displays the Windows Start menu.
(4) Action keys Execute frequently used system functions.
(5) Windows applications key Displays a shortcut menu for items beneath the pointer.
8 Chapter 2 External component identification

Lights
Item Component Description
(1) Caps lock light On: Caps lock is on, which switches the keys to all
capital letters.
(2) Power light ●White: The computer is on.
●Blinking white: The computer is in the Sleep state,
which is an energy-saving mode. The computer
shuts off power to the display and other
unneeded components.
●Off: The computer is off or in Hibernation.
Hibernation is an energy-saving mode that uses the
least amount of power.
(3) Wireless light ●White: An integrated wireless device, such as a
WLAN device and/or a Bluetooth device, is on.
●Amber: All wireless devices are off.
Lights 9

TouchPad
Item Component Description
(1) TouchPad on/off button Turns the TouchPad on or off.
(2) TouchPad light ●On: The TouchPad is off.
●Off: The TouchPad is on.
(3) TouchPad zone Moves the on-screen pointer and selects or activates items
on the screen.
(4) Left TouchPad button Functions like the left button on an external mouse.
(5) Right TouchPad button Functions like the right button on an external mouse.
Front
Component Description
Speakers Produce sound.
10 Chapter 2 External component identification

Left side
Item Component Description
(1) External monitor port Connects an external VGA monitor or projector.
(2) 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.
(3) RJ-45 (network) jack Connects a network cable.
(4) HDMI port Connects an optional video or audio device, such as a
high-definition television, any compatible digital or
audio device.
(5) USB port Connects an optional USB device.
(6) Audio-in (microphone) jack Connects an optional computer headset microphone,
stereo array microphone, or monaural microphone.
(7) Audio-out (headphone) jack Connects optional powered stereo speakers,
headphones, earbuds, a headset, or a television
audio cable.
WARNING! To reduce the risk of personal injury,
adjust the volume before putting on headphones,
earbuds, or a headset. For additional safety information,
refer to the Regulatory, Safety, and Environmental
Notices.
NOTE: When a device is connected to the jack,
the computer speakers are disabled.
Left side 11

Item Component Description
(8) Digital Media slot Supports the following digital card formats:
●Secure Digital (SD) Memory Card
●Secure Digital Extended Capacity (SDxC)
Memory Card
●Secure Digital High Capacity (SDHC) Memory Card
●MultiMediaCard (MMC)
(9) Hard drive light Blinking white: The hard drive is being accessed.
(10) Power light ●White: The computer is on.
●Blinking white: The computer is in the Sleep state,
which is an energy-saving mode. The computer shuts
off power to the display and other
unneeded components.
12 Chapter 2 External component identification