
HP mt40 Mobile Thin ClientMaintenance and Service GuideIMPORTANT! This document is intended forHP authorized service providers only.
Category DescriptionOptical drive FixedSerial ATA12.7-mm tray loadSupports a DVD-ROM driveSupports “no drive” optionAudio and video Two stereo speaker
Category DescriptionPorts●1394a port●Audio-in (mono microphone)●Audio-out (stereo headphone)●Battery connector●DisplayPort 1.1a●Docking connector●eSAT
Category DescriptionSecurity (continued) Preboot authentication (password, Smart Card)Operating system Preinstalled: Microsoft® Windows® Enterprise Sy
2 External component identificationDisplayContent Component Content Component(1) Internal display switch (4) Webcam light (select models only)(2) WLAN
TouchPadNOTE: Your computer may look slightly different from the illustration in this section.Content Component Content Component(1) TouchPad on/off b
FrontContent Component Content Component(1) Display release latch (4) Battery light(2) Wireless light (5) Drive light(3) Power light (6) Speakers (2)L
Right sideContent Component Content Component(1) Audio-out (headphone) jack (5) DisplayPort(2) Audio-in (microphone) jack (6) Vents (2)(3) eSATA/USB 2
BottomContent Component Content Component(1) Vents (4) (5) Battery bay(2) Battery release latch (6) Accessory battery connector(3) Docking connector (
3 Illustrated parts catalog10 Chapter 3 Illustrated parts catalog
Service tagWhen ordering parts or requesting information, provide the computer serial number and model numberprovided on the service tag. It is necess
© Copyright 2012 Hewlett-PackardDevelopment Company, L.P.Bluetooth is a trademark owned by itsproprietor and used by Hewlett-PackardCompany under lice
Computer major components12 Chapter 3 Illustrated parts catalog
Item Component Spare part number(1) Display assembly: The display assembly is spared at the subcomponent level only. For more display assemblyspare pa
Item Component Spare part number For use in the United States 701976-001(3) Top cover (includes TouchPad and 2 TouchPad buttons): 684338-001(4) Fan (
Display assembly subcomponentsItem Component Spare part number(1) Display bezel 685999-001 Display Hinge Cover Kit, includes: 642783-001(2) Display h
Item Component Spare part number Display Panel Support Kit (not illustrated, includes WLAN antenna cables andtransceivers and display enclosure)71065
Mass storage devicesItem Description Spare part number Hard Drive Hardware Kit, includes: 642774-001(1) Hard drive bracket Hard drive bracket screws
Miscellaneous partsComponent Spare part numberAC adapter:65-W HP Smart AC adapter (non-PFC, 3-wire) 693711-00165-W HP Smart AC adapter (RC/V, EM, 3-wi
Sequential part number listingSpare part number Description490371-001 Power cord for use in North America (3-pin, black, 1.83-m)490371-011 Power cord
Spare part number Description664663-001 Intel Celeron B840 1.90-GHz processor for use only on HP ProBook 6470b Notebook PC computermodels (1333-MHz, 2
Spare part number Description701976-271 Keyboard for use in Romania (includes keyboard cable)701976-281 Keyboard for use in Thailand (includes keyboar
Safety warning noticeWARNING! To reduce the possibility of heat-related injuries or of overheating the device, do notplace the device directly on your
4 Removal and replacementproceduresPreliminary replacement requirementsTools requiredYou will need the following tools to complete the removal and rep
Cables and connectorsCAUTION: When servicing the computer, be sure that cables are placed in their proper locationsduring the reassembly process. Impr
Grounding guidelinesElectrostatic discharge damageElectronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure
Packaging and transporting guidelinesFollow these grounding guidelines when packaging and transporting equipment:●To avoid hand contact, transport pro
Equipment guidelinesGrounding equipment must include either a wrist strap or a foot strap at a grounded workstation.●When seated, wear a wrist strap c
Component replacement proceduresThis chapter provides removal and replacement procedures.There are as many as 84 screws that must be removed, replaced
Computer feetThe computer feet are adhesive-backed rubber pads. The feet are included in the Rubber Kit, spare partnumber 641831-001. There are four r
BatteryDescription Spare part number9-cell, 100-Wh, 3.00-Ah 631243-0016-cell, 62-Wh, 2.80-Ah 628668-001Before disassembling the computer, follow these
Service coverDescription Spare part numberIncludes country of origin label 684326-001Includes regional configure to order (RCTO) with “made in China”
Optical driveDescription Spare part numberDVD-ROM drive (includes an optical drive bezel and optical drive bracket) 716387-001Before removing the opti
iv Safety warning notice
5.If it is necessary to replace the optical drive bracket, position the optical drive with the rear paneltoward you.6. Remove the two Phillips PM2.0×3
3.Remove the solid-state drive (3) from the solid-state drive bay.4. If it is necessary to disassemble the solid-state drive, perform the following st
RTC batteryDescription Spare part numberRTC battery (includes cable and double-sided tape) 651948-001Before removing the RTC battery, follow these ste
Reverse this procedure to install the RTC battery.Memory moduleNOTE: Primary and expansion memory is installed in a stacked configuration in the botto
2.Remove the memory module (2) by pulling the module away from the slot at an angle.NOTE: Memory modules are designed with a notch (3) to prevent inco
WLAN moduleDescription Spare part numberBroadcom 43228 802.11abgn 2×2 Wi-Fi Adapter 669832-001CAUTION: To prevent an unresponsive system, replace the
3.Remove the WLAN module (3) by pulling the module away from the slot at an angle.NOTE: WLAN modules are designed with a notch (4) to prevent incorrec
FanDescription Spare part numberFan (includes cable) 641839-001Before removing the fan, follow these steps:1. Turn off the computer. If you are unsure
KeyboardFor use in country/region Spare partnumberFor use in country/region Spare partnumberFor use in Belgium 701976-A41 For use in Northwest Africa
Remove the keyboard:1. Loosen the three Phillips captive screws that secure the keyboard to the computer.2. Rest and secure the computer on its right
Table of contents1 Product description ... 12
6.Lift the rear edge of the keyboard, and then swing the keyboard up and forward until it restsupside down on the palm rest.7. Release the zero insert
Base enclosureDescription Spare part numberBase enclosure (includes seven rubber feet, the service cover release latch assembly, and thebattery releas
5.Remove the four Phillips PM2.5×3.0 screws from the battery bay (4) that secure the baseenclosure to the computer.6. Remove the two Phillips PM2.5×3.
9.Remove the four Torx TM2.5×8.0 screws from the rear panel of the computer.10.Remove the wireless cables from the clips (1) and routing channel built
12.Remove the base enclosure by lifting it straight up from the computer.NOTE: Thoroughly clean the thermal pad material from the surfaces of the base
Speaker assemblyDescription Spare part numberSpeaker assembly (includes cable) 641840-001Before removing the speaker assembly, follow these steps:1. T
3.Remove the speaker assembly (2) from the base enclosure.Reverse this procedure to install the speaker assembly.Service cover release latch assemblyN
2.Remove the service cover release latch actuator from the base enclosure.3. Turn the base enclosure right side up, with the front toward you.4. Remov
7.Lift the left end of the service cover release latch arm (3) out of the openings in the base enclosure.8. Swing the left end of the service cover re
Battery release latch assemblyNOTE: The battery release latch assembly components are included in the Latch Kit, spare partnumber 684339-001.Before re
Service tag ... 27Computer feet ...
4.Remove the battery release latch arm spring from the spring retention hooks on thebase enclosure (1) and the battery release latch arm (2).5. Slide
9.Swing the right end of the battery release latch arm (2) clockwise until the left end of the armrelease from the openings in the base enclosure.10.
NOTE: When replacing the system board, be sure that the following components are removed fromthe defective system board and installed on the replaceme
9.Disconnect the display panel cable (5) from the system board.10. Remove the four Phillips PM2.5×5.0 screws that secure the system board to the top c
12.Remove the system board (2) by sliding it up and to the right at an angle.Reverse this procedure to install the system board.Heat sinkDescription S
g.Base enclosure (see Base enclosure on page 43)h. System board (see System board on page 53)Remove the heat sink:1. Following the 1, 2, 3, 4 sequence
Reverse this procedure to install the heat sink.ProcessorNOTE: The processor spare part kit includes replacement thermal material.Description Spare pa
h.System board (see System board on page 53)i. Heat sink (see Heat sink on page 56)Remove the processor:1. Use a flat-bladed screw driver (1) to turn
Display assemblyNOTE: The display assembly is spared at the subcomponent level only. For more display assemblyspare part information, see the individu
4.Remove the top cover (3) from the display assembly.5. If it is necessary to replace the display bezel or any of the display assembly subcomponents:a
8 Recycling ... 75Index ...
d.Remove the display bezel (4).The display bezel is available using spare part number 685999-001.6.If it is necessary to replace the webcam/microphone
c.Remove the webcam/microphone module (3).The webcam/microphone module is available using spare part number 684346-001. Themicrophone module is availa
8.If it is necessary to replace the display hinge covers:a. Remove the two Phillips PM2.5×3.0 screws (1) that secure the display hinge covers to thedi
10.If it is necessary to replace the display panel cable:CAUTION: Before turning the display panel upside down, make sure the work surface is clearof
c.Remove the WLAN antenna cables and transceivers (3). The WLAN antenna cables andtransceivers are included in the Antenna Kit, spare part number 6427
5 Computer Setup (BIOS) andAdvanced System DiagnosticsUsing Computer SetupComputer Setup, or Basic Input/Output System (BIOS), controls communication
NOTE: You can use either a pointing device (TouchPad, pointing stick, or USB mouse) or thekeyboard to navigate and make selections in Computer Setup.2
Updating the BIOSThe next sections describe different ways of updating the BIOS.Downloading SoftPaqs to update the BIOSMost BIOS updates on the HP web
Using Advanced System DiagnosticsAdvanced System Diagnostics allows you to run diagnostic tests to determine if the computer hardwareis functioning pr
6 SpecificationsComputer specifications Metric U.S.DimensionsWidth 33.80 cm 13.31 inDepth 23.13 cm 9.11 inHeight (front to back) 3.40 to 3.60 cm 1.34
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Metric U.S.Operating 5°C to 35°C 41°F to 95°FNonoperating -20°C to 60°C -4°F to 140°FRelative humidity (noncondensing)Operating 10% to 90%Nonoperatin
7 Power cord set requirementsThe wide-range input feature of the computer permits it to operate from any line voltage from 100 to120 volts AC, or from
Requirements for specific countries and regionsCountry/region Accredited agency Applicable note numberAustralia EANSW 1Austria OVE 1Belgium CEBC 1Cana
8 RecyclingWhen a non-rechargeable or rechargeable battery has reached the end of its useful life, do not disposeof the battery in general household w
IndexAAC adapter, spare part numbers18, 20accessory battery connector 9antennalocations 5removal 65spare part number 15, 19, 66audio, product descript
Ffanremoval 39spare part number 14, 19, 39feetlocation 28spare part number 28front component 7Ggraphics, product description 1grounding guidelines 24g
removal/replacementpreliminaries 22procedures 27right TouchPad button 6right-side components 8RJ-11 jack plug, illustrated 16RJ-45 jack 8RTC batteryre
1 Product descriptionCategory DescriptionProduct Name HP mt40 Mobile Thin ClientProcessor Intel® Celeron® B840 1.90-GHz processor (1333-MHz FSB, 2.0-M
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