HP 655 Maintenance And Service Manual Download

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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

Summary of Contents for 655

Page 1: ...HP 655 Notebook PC Maintenance and Service Guide ...

Page 2: ...ed 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...

Page 3: ...w 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 Inf...

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

Page 5: ...ustrated 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 Electro...

Page 6: ...isplay 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 8...

Page 7: ...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 vii ...

Page 8: ...viii ...

Page 9: ...ed 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...

Page 10: ...ating 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 Opti...

Page 11: ... 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 ...

Page 12: ...ome 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 4 Chapter 1 Product description ...

Page 13: ... 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 ...

Page 14: ...uCam 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 Ext...

Page 15: ...e 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...

Page 16: ...ion 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 ...

Page 17: ...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 ...

Page 18: ...d 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 ...

Page 19: ...gh 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 injur...

Page 20: ...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 ...

Page 21: ...le USB ports on the same side only one USB port will able to support a high power device at a time 5 AC adapter light White 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 DC power 6 Power connector Connects an AC adapter 7 Security cable slot Attaches an optional security cable to the computer NOTE The ...

Page 22: ... access to the memory module compartment wireless module compartment keyboard retention screw and optical drive bay CAUTION To prevent an unresponsive system replace the wireless module only with a wireless module authorized for use in the computer by the governmental agency that regulates wireless devices in your country or region If you replace the module and then receive a warning message remov...

Page 23: ...3 Illustrated parts catalog 15 ...

Page 24: ...tifier that is unique to each product 3 Part number Product number p n This number provides specific information about the product s hardware components The part number helps a service technician to determine what components and parts are needed 4 Warranty period This number describes the duration of the warranty period for the computer 5 Model description This is the alphanumeric identifier used ...

Page 25: ...Component Spare part number 1 Display assembly The display assembly is spared at the subcomponent level only For more display assembly spare part information see Display assembly subcomponents on page 21 Computer major components 17 ...

Page 26: ...key 646125 141 For use in the United States 646125 001 For use in the United Kingdom and Singapore 646125 031 3 Top cover includes the TouchPad board 687703 001 4 Power button board includes cable 686270 001 5 TouchPad button board includes bracket TouchPad button board cable and TouchPad cable 686271 001 6 Speakers include speaker cables 686279 001 7 Optical drive connector cable includes bracket...

Page 27: ...y 686274 001 16 Hard drive does not include hard drive bracket hard drive connector cable or screws 750 GB 5400 rpm 9 5 mm 634250 001 640 GB 5400 rpm 9 5 mm 669300 001 500 GB 5400 rpm 9 5 mm 669299 001 320 GB 5400 rpm 9 5 mm 622643 001 Hard Drive Hardware Kit not illustrated includes hard drive bracket hard drive connector cable and screws 686261 001 17 Memory module PC3 12800 1600 MHz 4 GB memory...

Page 28: ...rt number 19 Hard drive compartment cover includes one captive screw secured by a C clip 20 Memory module wireless module compartment cover includes one captive screw secured by a C clip 20 Chapter 3 Illustrated parts catalog ...

Page 29: ...Webcam microphone module includes double sided adhesive 686285 001 3 15 6 in LED SVA HD BrightView display panel 687700 001 Display Hinge Kit includes 686262 001 4 Left and right display hinge covers 5 Left and right display hinges and vertical support brackets Display assembly subcomponents 21 ...

Page 30: ...nna Kit includes wireless antenna left and right main and auxiliary cables and transceivers 686249 001 8 Display enclosure 687698 001 Rubber Kit not illustrated includes front and rear rubber feet display bezel rubber bumpers and display bezel rubber screw covers 686276 001 22 Chapter 3 Illustrated parts catalog ...

Page 31: ...9 5 mm 669300 001 500 GB 5400 rpm 9 5 mm 669299 001 320 GB 5400 rpm 9 5 mm 622643 001 Hard Drive Hardware Kit includes 686261 001 2a Hard drive bracket 2b Hard drive connector cable Hard drive bracket screws not illustrated 3 DVD RW Double Layer with SuperMulti Drive includes optical drive bezel and optical drive bracket 686268 001 Mass storage devices 23 ...

Page 32: ...use in Denmark 490371 081 For use in Europe 490371 021 For use in Israel 490371 BB1 For use in Italy 490371 061 For use in North America 490371 001 For use in South Africa 490371 AR1 For use in Switzerland 490371 111 For use in the United Kingdom and Singapore 490371 031 Screw Kit 686278 001 24 Chapter 3 Illustrated parts catalog ...

Page 33: ... number 686261 001 634250 001 750 GB 5400 rpm 9 5 mm hard drive does not include hard drive bracket hard drive connector cable or screws NOTE The hard drive bracket hard drive connector cable and screws are included in the Hard Drive Hardware Kit spare part number 686261 001 641369 001 4 GB memory module PC3 12800 1600 MHz 646125 001 Keyboard for use in the United States includes keyboard cable 64...

Page 34: ...9300 001 640 GB 5400 rpm 9 5 mm hard drive does not include hard drive bracket hard drive connector cable or screws NOTE The hard drive bracket hard drive connector cable and screws are included in the Hard Drive Hardware Kit spare part number 686261 001 670691 001 Ralink RT5390F 802 11b g n 1 1 WLAN module 675794 001 Atheros HB125 802 11b g n 1 1 WLAN module 686249 001 Antenna Kit includes wirele...

Page 35: ...tem board for use on computer models equipped with an AMD E1 1200 processor 1 40 GHz 1066 MHz 18 W dual core UMA graphics subsystem memory includes processor and replacement thermal material 689072 001 System board for use on computer models equipped with an AMD E2 1800 processor 1 70 GHz 1333 MHz 18 W dual core UMA graphics subsystem memory includes processor and replacement thermal material 6890...

Page 36: ...sembly can damage plastic parts Use care when handling the plastic parts Apply pressure only at the points designated in the maintenance instructions Cables and connectors CAUTION 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...

Page 37: ...posing an internal hard drive to products that have magnetic fields such as monitors or speakers Avoid exposing a drive to temperature extremes or liquids If a drive must be mailed place the drive in a bubble pack mailer or other suitable form of protective packaging and label the package FRAGILE Grounding guidelines Electrostatic discharge damage Electronic components are sensitive to electrostat...

Page 38: ...following table shows how humidity affects the electrostatic voltage levels generated by different activities CAUTION A product can be degraded by as little as 700 V Typical electrostatic voltage levels Relative humidity Event 10 40 55 Walking across carpet 35 000 V 15 000 V 7 500 V Walking across vinyl floor 12 000 V 5 000 V 3 000 V Motions of bench worker 6 000 V 800 V 400 V Removing DIPS from p...

Page 39: ...nd and that proper materials are selected to avoid static charging When grounding is not possible use an ionizer to dissipate electric charges Workstation guidelines Follow these grounding workstation guidelines Cover the workstation 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 f...

Page 40: ... between the operator and ground To be effective the conductive must be worn in contact with the skin The following grounding equipment is recommended to prevent electrostatic damage Antistatic tape Antistatic smocks aprons and sleeve protectors Conductive bins and other assembly or soldering aids Nonconductive foam Conductive tabletop workstations with ground cords of one megohm resistance Static...

Page 41: ...umber provided on the service tag It is necessary to remove the battery to obtain these numbers See Battery on page 35 for battery removal instructions Item Component Description 1 Product name This is the product name affixed to the front of the computer 2 Serial number s n This is an alphanumeric identifier that is unique to each product 3 Part number Product number p n This number provides spec...

Page 42: ...ic identifier used to locate documents drivers and support for the computer Computer feet The computer feet are adhesive backed rubber pads There are 4 rubber feet that attach to the base enclosure as indicated in the illustration below These rubber feet are available in the Rubber Kit spare part number 686276 001 34 Chapter 4 Removal and replacement procedures ...

Page 43: ... 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 Remove the battery 1 Turn the computer upside down on a flat surface 2 Slide the battery release latch 1 to release the battery 3 Pivot the front edge of the battery 2 up a...

Page 44: ... 4 Remove the battery see Battery on page 35 Remove the memory module 1 Loosen the captive screw 1 that secures the memory module wireless module compartment cover to the computer 2 Lift the rear edge of the memory module wireless module compartment cover 2 up and forward until it rests at an angle 3 Remove the memory module wireless module compartment cover 3 by sliding it away from the computer ...

Page 45: ...WiFi and Bluetooth 4 0 Combo Adapter 690020 001 CAUTION To prevent an unresponsive system replace the wireless module only with a wireless module authorized for use in the computer by the governmental agency that regulates wireless devices in your country or region If you replace the module and then receive a warning message remove the module to restore device functionality and then contact techni...

Page 46: ...rminal The 2 WLAN antenna cable is connected to the WLAN module 2 terminal 2 Remove the Phillips PM2 0 3 0 screw 2 that secures the WLAN module to the system board The WLAN module tilts up 3 Remove the WLAN module by pulling the module away from the slot at an angle 3 NOTE If the WLAN antennas are not connected to the terminals on the WLAN module the protective sleeves must be installed on the ant...

Page 47: ...1 For use in Spain 646125 071 For use in Greece 646125 DJ1 For use in Switzerland 646125 BG1 For use in Hungary 646125 211 For use in Turkey 646125 141 For use in Israel 646125 BB1 For use in the United Kingdom and Singapore 646125 031 For use in Italy 646125 061 Before removing the keyboard follow these steps 1 Turn off the computer If you are unsure whether the computer is off or in Hibernation ...

Page 48: ...eyboard 1 Remove the Phillips PM2 5 4 0 screw that secures the keyboard to the computer 2 Rest and secure the computer on its left side 3 Partially open the computer 40 Chapter 4 Removal and replacement procedures ...

Page 49: ...the back of the keyboard until the keyboard disengages from the computer 5 Turn the computer right side up with the front toward you 6 Lift the rear edge of the keyboard 1 and then swing the keyboard up and forward 2 until it rests upside down on the palm rest Component replacement procedures 41 ...

Page 50: ...ZIF connector 1 to which the keyboard cable is attached and then disconnect the keyboard cable 2 from the system board 8 Remove the keyboard 3 Reverse this procedure to install the keyboard 42 Chapter 4 Removal and replacement procedures ...

Page 51: ...t the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the battery see Battery on page 35 5 Remove the memory module wireless module compartment cover see Memory module on page 36 Remove the optical drive 1 Remove the Phillips PM2 5 4 0 screw 1 that secures the optical drive to the computer 2 Use a flat blade screw ...

Page 52: ... bezel 6 Release the left side of the optical drive bezel 3 7 Remove the optical drive bezel 4 8 If it is necessary to replace the optical drive bracket position the optical drive with the rear panel toward you 9 Remove the two Phillips PM2 0 3 0 screws 1 that secure the optical drive bracket to the optical drive 10 Remove the optical drive bracket 2 Reverse this procedure to install the optical d...

Page 53: ...ure 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 4 Remove the battery see Battery on page 35 5 Remove the memory module wireless module compartment cover see Memory module on page 36 Remo...

Page 54: ... spare part number 686272 001 4 Disconnect the hard drive connector cable 1 from the system board and then release the cable from the clip 2 built into the base enclosure 5 Remove the four Phillips PM2 5 4 0 screws 3 that secure the hard drive to the computer 6 Remove the hard drive 4 from the hard drive bay 46 Chapter 4 Removal and replacement procedures ...

Page 55: ...e hard drive b Remove the hard drive bracket 2 from the hard drive c Disconnect the hard drive connector cable 3 from the hard drive The hard drive bracket hard drive connector cable and screws are available in the Hard Drive Hardware Kit spare part number 686261 001 Reverse this procedure to reassemble and install the hard drive Component replacement procedures 47 ...

Page 56: ...computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the battery see Battery on page 35 5 Remove the memory module wireless module compartment cover see Memory module on page 36 6 Remove the hard drive compartment cover see Hard drive on page 45 Remove the RTC battery 1 Use a flat bladed non metallic tool 1 to release the RTC battery ...

Page 57: ...ernal devices from the computer 4 Remove the battery see Battery on page 35 and then remove the following components a Memory module wireless module compartment cover see Memory module on page 36 b Keyboard see Keyboard on page 39 c Hard drive see Hard drive on page 45 NOTE When replacing the top cover be sure to remove the following components from the defective top cover and install them on the ...

Page 58: ... on the front edge of the battery bay and near the hard drive connector that secure the top cover to the computer 4 Turn the computer right side up with the front toward you 5 Open the computer 6 Release the ZIF connector to which the power button board cable is connected and then disconnect the power button board cable 1 from the system board 50 Chapter 4 Removal and replacement procedures ...

Page 59: ...le 2 from the system board 8 Remove the Phillips PM2 0 2 5 screw 1 and the three Phillips PM2 5 6 5 screws 2 that secure the top cover to the computer 9 Lift the rear edge of the top cover 1 and swing it up and forward until the left and right sides of the top cover detach from the base enclosure Component replacement procedures 51 ...

Page 60: ...e computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the battery see Battery on page 35 and then remove the following components a Memory module wireless module compartment cover see Memory module on page 36 b Keyboard see Keyboard on page 39 c Hard drive see Hard drive on page 45 d Top cover see Top cover on page 49 Remove the powe...

Page 61: ...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 4 Remove the battery see Battery on page 35 and then remove the following components a Memory module wireless module compartment cover see Memory module o...

Page 62: ...nector to which the TouchPad board cable is connected and then disconnect the TouchPad board cable 2 from the TouchPad board 4 Release the two pieces of shielding tape that cover the left and right sides of the TouchPad button board 3 5 Remove the two Phillips PM2 5 4 0 screws 1 that secure the TouchPad button board to the top cover Lift the rear edge of the TouchPad button board 2 until it rests ...

Page 63: ...6 Remove the TouchPad button board 3 by sliding it away from the top cover at an angle Reverse this procedure to install the TouchPad button board Component replacement procedures 55 ...

Page 64: ... computer 4 Remove the battery see Battery on page 35 and then remove the following components a Memory module wireless module compartment cover see Memory module on page 36 b Keyboard see Keyboard on page 39 c Hard drive see Hard drive on page 45 d Top cover see Top cover on page 49 Remove the optical drive connector cable 1 Disconnect the optical drive connector cable 1 from the system board 2 R...

Page 65: ...4 Remove the optical drive connector cable 4 Reverse this procedure to install the optical drive connector cable Component replacement procedures 57 ...

Page 66: ...vices from the computer 4 Remove the battery see Battery on page 35 and then remove the following components a Memory module wireless module compartment cover see Memory module on page 36 b Keyboard see Keyboard on page 39 c Hard drive see Hard drive on page 45 d Top cover see Top cover on page 49 Remove the speakers 1 Disconnect the speaker cable 1 from the system board 2 Release the speaker cabl...

Page 67: ...4 Remove the speakers 4 Reverse this procedure to install the speakers Component replacement procedures 59 ...

Page 68: ...nal devices from the computer 4 Remove the battery see Battery on page 35 and then remove the following components a Memory module wireless module compartment cover see Memory module on page 36 b Keyboard see Keyboard on page 39 c Hard drive see Hard drive on page 45 d Top cover see Top cover on page 49 Remove the USB board 1 Release the ZIF connector to which the USB board cable is connected and ...

Page 69: ...3 Remove the USB board 3 Reverse this procedure to install the USB board Component replacement procedures 61 ...

Page 70: ...ter 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 4 Remove the battery see Battery on page 35 and then remove the following components a Memory module wireless module compartment cover see Memory module on page 36 b WLAN module see WLAN module on page ...

Page 71: ... Optical drive connector cable 3 Display panel cable 4 USB board cable 5 Power connector cable 2 Remove the three Phillips PM2 5 6 0 screws 1 that secure the system board to the base enclosure 3 Lift the right side of the system board 2 until it rests at an angle Component replacement procedures 63 ...

Page 72: ...ure 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 4 Remove the battery see Battery on page 35 and then remove the following components a Memory module wireless module compartment cover see...

Page 73: ...he adhesive quality of the thermal material located between the processor heat sink and processor it may be necessary to move the processor heat sink from side to side to detach it The thermal material must be thoroughly cleaned from the surfaces of the processor heat sink and the processor each time the processor heat sink is removed Replacement thermal material is included with the processor hea...

Page 74: ...Reverse this procedure to install the fan heat sink assembly 66 Chapter 4 Removal and replacement procedures ...

Page 75: ...h 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 4 Remove the battery see Battery on page 35 5 Disconnect the wireless antenna cables from the WLAN module see Memory module on page 36 6 Remove the following components a Keyboard see Keyboard on page 39 b Hard drive see Hard drive on pa...

Page 76: ...t the display assembly when removing the following screws Failure to support the display assembly can result in damage to the display assembly and other computer components 3 Remove the five Phillips PM2 5 6 5 screws 1 that secure the display assembly to the base enclosure 68 Chapter 4 Removal and replacement procedures ...

Page 77: ...e two Phillips PM2 5 5 5 screws 2 that secure the display bezel to the display assembly The display bezel screw covers are available in the Rubber Kit spare part number 686276 001 b Flex the inside edges of the bottom edge 3 the left and right sides 4 and the top edge 5 of the display bezel until the bezel disengages from the display enclosure Component replacement procedures 69 ...

Page 78: ...ecessary to replace the display hinge covers a Remove the two Phillips PM2 5 4 0 screws 1 that secure the display hinge covers to the display enclosure b Remove the display hinge covers 2 The display hinge covers are available using spare part number 686262 001 70 Chapter 4 Removal and replacement procedures ...

Page 79: ...o the display enclosure c Lift the top edge of the display panel 3 and then swing it up and forward until it rests upside down in front of the display enclosure d Release the adhesive support strip 1 that secures the display panel cable to the display panel e Detach the display panel cable 2 from the display panel The display panel cable is attached to the display panel with double sided tape Comp...

Page 80: ... display panel The display panel is available using spare part number 687700 001 8 If it is necessary to replace the display hinges a Remove the six Phillips PM2 0 3 5 screws 1 that secure the display hinges to the display panel 72 Chapter 4 Removal and replacement procedures ...

Page 81: ...ry to replace the display panel cable a Detach the display panel cable 1 from the display enclosure The display panel cable is attached to the display enclosure with double sided tape in multiple locations b Disconnect the webcam microphone cable 2 from the webcam microphone module Component replacement procedures 73 ...

Page 82: ...c Remove the display panel cable 3 The display panel cable is available using spare part number 686256 001 and includes the webcam microphone cable 74 Chapter 4 Removal and replacement procedures ...

Page 83: ...am microphone module is not damaged when removing and replacing the module NOTE Depending on computer model some computer models may be equipped one or two sets of wireless antenna cables and transceivers 11 If it is necessary to replace the wireless antenna cables and transceivers a Detach the wireless antenna transceivers 1 from the display enclosure The wireless antenna transceivers are attache...

Page 84: ...system 2 Disconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the battery see Battery on page 35 and then remove the following components a Memory module wireless module compartment cover see Memory module on page 36 b Keyboard see Keyboard on page 39 c Hard drive see Hard drive on page 45 d Top cover see...

Page 85: ...3 Remove the power connector bracket 3 4 Remove the power connector cable 4 Reverse this procedure to install the power connector cable Component replacement procedures 77 ...

Page 86: ...sc while the Press the ESC key for Startup Menu message is displayed at the bottom of the screen 2 Press f10 to enter Setup Utility BIOS Information about how to navigate in Setup Utility BIOS is located at the bottom of the screen NOTE Use extreme care when making changes in Setup Utility BIOS Errors can prevent the computer from operating properly Updating the BIOS Updated versions of the BIOS m...

Page 87: ...AC outlet Do not shut down the computer or initiate Sleep or Hibernation Do not insert remove connect or disconnect any device cable or cord 1 Select Start Help and Support Maintain 2 Follow the on screen instructions to identify your computer and access the BIOS update you want to download 3 At the download area follow these steps a Identify the BIOS update that is later than the BIOS version cur...

Page 88: ... hard drive Using System Diagnostics System Diagnostics allows you to run diagnostic tests to determine if the computer hardware is functioning properly To start System Diagnostics 1 Turn on or restart the computer While the Press the ESC key for Startup Menu message is displayed in the lower left corner of the screen press esc When the Startup Menu is displayed press f2 2 Click the diagnostic tes...

Page 89: ...r 19 5V 4 62A 90W Temperature Operating 5 C to 35 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 ope...

Page 90: ... 15 67 in Number of colors Up to 16 8 million Contrast ratio 200 1 typical Brightness 250 nits typical Pixel resolution Pitch 0 197 0 197 mm Format 1366 768 Configuration RGB vertical stripe Backlight LED Character display 80 25 Total power consumption 3 46 W Viewing angle 65 horizontal 50 vertical typical 82 Chapter 6 Specifications ...

Page 91: ...ity Seek times typical read including setting Single track 1 5 ms 1 5 ms 1 5 ms Average read write 11 13 ms 11 13 ms 11 13 ms Maximum 22 ms 22 ms 22 ms Logical blocks 1 250 269 655 976 773 168 628 142 448 Disk rotational speed 5400 rpm 5400 rpm 5400 rpm Operating temperature 0 C to 60 C 32 F to 140 F 1 GB 1 billion bytes when referring to hard drive storage capacity Actual accessible capacity is l...

Page 92: ...er HP recommends that you use HP Recovery Manager immediately after software setup to create either a set of recovery discs or a recovery flash drive If you need to restore your system for some other reason than hard drive failure you can use the HP Recovery partition select models only without the need for recovery discs or a recovery flash drive To check for the presence of a recovery partition ...

Page 93: ...t must be connected directly to a USB port on the computer not to a USB port on an external device such as a USB hub Guidelines Purchase high quality DVD R DVD R DVD R DL or DVD R DL discs NOTE Read write discs such as CD RW DVD RW double layer DVD RW and BD RE rewritable Blu ray discs are not compatible with the HP Recovery Manager software The computer must be connected to AC power during this p...

Page 94: ... Recovery Manager HP Recovery Manager restores only software that was installed at the factory Software not provided with this computer must be downloaded from the manufacturer s website or reinstalled from the disc provided by the manufacturer Restoring using the dedicated recovery partition select models only When using the dedicated recovery partition you can back up pictures music and other au...

Page 95: ...he flash drive 5 Follow the on screen instructions Changing the computer boot order To change the boot order for recovery discs 1 Restart the computer 2 Press esc while the computer is restarting and then press f9 for boot options 3 Select Internal CD DVD ROM Drive from the boot options window To change the boot order for a recovery flash drive 1 Insert the flash drive into a USB port 2 Restart th...

Page 96: ...iodically Before the computer is repaired or restored Before you add or modify hardware or software Guidelines Create system restore points using the Windows System Restore feature and periodically copy them to an optical disc or an external hard drive For more information about using system restore points see the Using Windows system restore points section Store personal files in the Documents li...

Page 97: ...Windows system restore points A system restore point allows you to save and name a snapshot of your hard drive at a specific point in time You can then recover back to that point if you want to reverse subsequent changes NOTE Recovering to an earlier restore point does not affect data files saved or e mails created since the last restore point You also can create additional restore points to provi...

Page 98: ...lly follow these steps 1 Select Start Control Panel System and Security System 2 In the left pane click System protection 3 Click the System Protection tab 4 Click System Restore 5 Follow the on screen instructions NOTE If you revert to a restore point and then change your mind you can reverse the restoration 90 Chapter 7 Backup and recovery ...

Page 99: ... requirements are applicable to all countries and regions The length of the power cord set must be at least 1 5 m 5 0 ft and no more than 2 0 m 6 5 ft All power cord sets must be approved by an acceptable accredited agency 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 volta...

Page 100: ...ug must be a two pole grounding type with a NEMA 5 15P 15 A 125 V or NEMA 6 15P 15 A 250 V configuration 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 Sta...

Page 101: ...e battery 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 93 ...

Page 102: ...ations 28 Cover Kit spare part number 19 27 36 46 D Digital Media slot 12 display components 5 specifications 82 display assembly removal 67 spare part number 67 subcomponents 21 display bezel removal 69 spare part number 21 26 70 display enclosure spare part number 22 27 display hinge removal 72 spare part number 21 26 73 display hinge cover removal 70 spare part number 21 70 Display Hinge Kit sp...

Page 103: ...s module compartment cover location 14 removal 36 spare part number 27 36 microphone location 5 product description 2 microphone jack 11 model description 34 model name 1 monitor port 11 N network jack 11 O operating system product description 4 optical drive location 13 precautions 29 product description 2 removal 43 spare part number 19 23 26 43 optical drive connector cable removal 56 spare par...

Page 104: ... 82 hard drive 83 system board removal 62 spare part numbers 18 27 62 T tools required 28 top cover removal 49 spare part number 18 49 spare part numbers 27 TouchPad button 10 TouchPad button board removal 53 spare part number 18 26 53 TouchPad components 10 TouchPad light 10 TouchPad on off button 10 TouchPad zone 10 transporting guidelines 31 U USB board removal 60 spare part number 18 26 60 USB...

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HP 655, Maintenance And Service Manual

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