Instruction/ maintenance manual of the product 4340S HP (Hewlett-Packard)
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HP ProBook 4340s Notebook PC HP ProBook 4341s Notebook PC Maintenance and Service Guide.
© Copyright 2012 Hew lett-Packard Development Company, L.P. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license. Intel and Core are trademarks or registered trademarks of Intel Corporation in the United States an d other countries.
Safety warning notice WARNING! To reduce the possibility of heat-related inju ries or of ove rheating th e computer, do not place the compu ter directly on your lap or o bstruct the computer air ven ts.
iv Safety warning no tice.
Table of contents 1 Product description ............ ......... ........... ......... ......... .......... .......... ........... ........ ............ ... ............. ........ ......... .. 1 2 External component id enti fication ...... ......... ...
Packaging and transporting guidelines ........ ........... ....... ........... ........ 28 Works tation guideline s ..................................................................... 28 Equipmen t guidelines .................... ...................
Secur ity menu ............ ........... .............. ............. .............. ........... ............ ............ 84 Diagnostics menu ................... ........... ............. .......... .............. .......... .......... ....... 84 Using Advanced System Diagnostics .
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1 Product description Category Description Product Name HP ProBook 4340s Not ebook PC HP ProBook 4341s Not ebook PC Processors Intel® Core™ i7 processor, Quad Core (6-GB L3 cache) 3612QM, 2.10-GHz processor Intel Core i5 processors, Dual C ore (3-MB L3 cache) 3360M, 2.
Category Description Supports the following configurations: ● 8192 (4096 × 2; dual channel) ● 6144 (4096 + 2048; dual ch annel) ● 4096 (2048 × 2; dual channel) ● 4096 (4096 × 1) ● 2048 (2048 × 1) Hard drives Supports 7-mm, 6.
Category Description Integrated WWAN op tions by way of wi reless module: Two WWAN antennas built into display assembly (world-wide 5 band, config ured with panels) Subscriber identity module (SIM) se.
Category Description Novell™: SuSE Linux™ – SLED 11, 64-bit, SP2 (not available with WWAN) FreeDOS Preinstalled with Micr osoft Office: Windows 7 Professional 64 with Microso ft Office 2010 Star.
Category Description Microsoft WHQL Serviceability End-user replaceable parts: AC adapter Battery (system) Hard drive Memory module Optical drive WLAN module WWAN module, SIM Keyboard 5.
2 External component identification Display Component Description (1) WWAN antennas (2)* (select models only) Send and receive wireless signals to communica te with wireless wide-area networks (WWAN ). (2) WLAN antennas (2)* Send and receive wireless sign als to communicate with wireless local area networks ( WLAN).
Component Description (6) Internal display switch Turns off the display or initiates Sleep if the display is closed while the power is on. NOTE: The display switch is not visi ble from the outside of the computer. *The antennas are not visible from the outsid e of the comput er.
Lights Component Description (1) Power light ● On: The computer is on. ● Blinking: The computer is in the Sleep state. ● Off: The computer is off or in Hibernation. (2) Caps lock light On: Caps lock is on. (3) Web browser light ● On: The computer is on.
Buttons, speakers, and fingerprin t reader (select models only) NOTE: Refer to the illustration that most closely matches your computer. Component Description (1) Power button ● When the computer is off, p ress the button to turn on the computer. ● When the computer is on, press the b utton briefly to initiate Sleep.
Component Description (3) Web browser button Opens the default Web browser. (4) Wireless button Tur ns the wireless feature on or off but does not e stablish a wireless connection. (5) Fingerprint reader (select models only) All ows a fingerprint logon to Windows, instead of a password logon.
Component Description (6) Windows applications key Dis plays a shortcut menu for it ems beneath the cursor. (7) num lk key Turns the embedded numeric keypad on an d off when pressed in combina tion with the fn key. Front Component Description (1) Drive light ● White: The hard drive is being accessed.
Left Component Description (1) Security cable slot Attaches an opti onal security cable to the computer. NOTE: The security cable is designed to act as a deterrent, but it may not preve nt the computer from be ing mishandled or stolen. (2) Vent Enables airflow to cool internal components.
Right Component Description (1) USB 3.0 port Connects an optional USB device. For mo re information about USB devices, see the HP Notebook Reference Guide . (2) USB 2.0 port Connects an optional USB device. For mo re information about USB devices, see the HP Notebook Reference Guide .
3 Illustrated parts catalog Service tag When ordering pa rts or requestin g information, provide the comput er serial numbe r and model description provided on the service tag. ● Product name (1) . This is the product name affix ed to the front of the computer.
Computer major components Computer majo r components 15.
Item Description Spare part number (1) Display panel , 33.8-cm (13.3-inch) HD, anti-glare 684251-001 (2) Keyboa rd (includes cable) NOTE: For a detailed list of available keybo ards, see Sequential part number listing on page 21 .
Item Description Spare part number Intel Centrino Advanced-N 6235 670292-001 Ralink WLAN Ralink Ripple3 RT5390F_802.11 b/g/n 1x1 PCIe HMC 670691-001 Atheros AR9485 802.
Display components Item Description Spare part number (1) Display b ezel (includes screw covers) 683858-001 (2) Webcam module 683508-001 Display Hinge Kit 684239-001 (3) Display hinge covers (left and.
Mass storage devices Description Spare part number (1) Hard drives 500-GB, 5400-rpm 683802-001 320-GB, 7200-rpm 634862-001 320-GB, 5400-rpm 645193-001 128-GB solid-state drive 684253-001 Hard Drive Ha.
Miscellaneous parts Description Spare part nu mber Notebook combin ation lock 591699-001 Cases Basic carr ying case 455084-001 Professional slim, top load case 592923-001 Nylon case 612757-001 Mice Mo.
Sequential part number listing CSR flag designations: A = Mandatory B = Optional C = Service technician re commended N = Non-user rep laceable Spare part number CSR flag Description 390632-001 A Mouse.
Spare part number CSR flag Description 657325-001 A Broadcom 4313GN 802.11b/g/n 1x1 WiFi and 20702 Blu etooth 4.0 Combo Adapter 664663-001 N Intel Celeron B840 processor, 1.9-GHz proc essor, 3-MB L3 cache (includes thermal material) 668969-001 A Ericsson F5321 HSPA+ with GPS 669831-001 A 6-cell, 51 WHr, 2.
Spare part number CSR flag Description 684246-001 N Rubber Kit (includes bezel screw covers and base enclosure screw plugs) 684247-001 N Screw Kit 684248-001 N RTC battery 684249-001 A DVD±RW Double-.
Spare part number CSR flag Description 684253-001 A 128-GB solid-state drive 686319-001 N Latch Kit (includes knob , spring, and left and right latches) 691116-001 A Bottom door 692428-001 N Intel Pentium processor, B980, 2.
4 Removal and replacement procedures Preliminary replacement requirements Tools required You will need the following tools to comple te the removal and re placement procedures: ● Flat-bla ded screw .
Cables and connectors CAUTION: When servicing the computer, be sure that c ables are placed in their prop er locations during the reassembly p rocess. Improp er cable placem ent can damage th e computer. Cables must be handle d with extreme care to avo id damage.
Grounding guidelines Electrostatic discharge damage Electronic componen ts are sensit ive to electrost atic discharge (ESD). Circuitry design and st ructure determine the deg ree of sensitiv ity.
Packaging and transporting guidelines Follow these groun ding guidelines whe n packaging and transp orting equipment: ● To avoid hand contact, transport products in static-safe tubes, bags, or boxes. ● Protect ESD-sensitive parts an d assemblies wi th conductive or approv ed containe rs or packaging.
Equipment guidelines Grounding equi pment must include eith er a wrist strap o r a foot strap at a grou nded workstation. ● When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexibl e straps with a minimu m of one megohm ±1 0% resi stance in the ground cords.
Component replacement procedures This chapter provides removal an d replacement proced ures. There are as many as 95 screws and screw locks, in 15 different sizes, that must be removed, replaced, or loosened when servicing the computer . Make special note of each screw and screw lock size and location du ring removal and repl acement.
Battery Description Spare part num ber 6-cell, 51 WHr, 2.55 Ah Li-ion batter y 669831-001 Before disa ssembling the co mputer, follow these steps: 1. Shut down the co mputer. If you are unsure whether th e computer is off or in Hibe rnation, turn the computer on, and th en shut it down thr ough the operating system.
Using the optional security screw Use the optional security screw to lock the service doo r to the bottom of the computer. When not in use the security scr ew can be stored insid e the battery bay . Remove the battery: To use the security screw: 1. Remove the battery.
Bottom door Description Spare part num ber Bottom door 691116-001 Before disa ssembling the co mputer, follow these steps: 1. Shut down the co mputer. If you are unsure whether th e computer is off or in Hibe rnation, turn the computer on, and th en shut it down thr ough the operating system.
SIM NOTE: This section applies only to co mputer models with WWAN capability. NOTE: The SIM is provided by the en d-user as a security measure for the WWAN modul e. The SIM should be remove d, placed into a static-dissipa tive container, a nd then replac ed when the co mputer is reassembled.
Optical drive NOTE: All optical drive spare part ki ts include an optical drive b ezel, bracket , and screws. Description Spare part num ber DVD±RW Double-Layer Drive 684249-001 Blu-ray ROM DVD±RW SuperMulti DL Drive 684250-001 Before removing the optical drive, follow these ste ps: 1.
4. Remove the optical drive (3) from the computer. Reverse this procedure to install an optical drive. 36 Chapter 4 Remova l and replacement procedures.
Hard dr ive NOTE: All hard drive spare part kits incl ude a hard drive bracket and screws. Description Spare part num ber 500-GB, 5400-rpm hard drive, 7 mm 683802-001 320-GB, 7200-rpm hard drive, 7 mm.
3. Pull the Mylar tab on the hard drive (2) toward the side of the computer to disen gage the hard drive from the connector, a nd then lift th e hard drive o ut of the hard drive bay. 4. If it is necessary to re place the hard dr ive cover, lift the Mylar tab to unlock it.
6. Lift the top of the Mylar cover (2) from the drive, and then remove the cover from the h ard drive (3) . Reverse this procedure to rea sse mble and install the h ard drive. Memory modules NOTE: Primary and expansion memory is insta lled in a stacke d configuration in the bo ttom of the computer.
3. Remove the memory module (2) by pul ling the module a way from the slot at an angle. NOTE: Memory modules a re designed with a n otch to prevent incorrect in sertion into the memory module sl ot.
WWAN module CAUTION: The WWAN module and the WL AN module are not in terchangeable . Description Spare part num ber Ericsson F5321 HSPA+ with GPS 668969-001 Sierra MC8355 (Gobi3000) HSPA/CDMA 634400-001 Before removing the WWAN module, follow these steps: 1.
4. Remove the WWAN module (3) by pulling the module away from the slo t at an angle. NOTE: WWAN modules are designed wi th a not ch to prevent inc orrect insertio n.
WLAN/Bluetooth combo card The computer uses a card that provides both WLAN and Blu etooth functionality. CAUTION: The WLAN module and the WWAN module are not inte rchangeable. Description Spare part num ber Atheros 9485GN 802.11b/g/n 1x1 WiFi and 3012 Bluetoo th 4.
4. Remove the WLAN module (3) by pulling the module away from the slot at an angle. NOTE: WLAN modules a re designed with a n otch to prevent incorrect in sertion.
Keyboard NOTE: For a detailed list o f available keyb oards, see Sequential part number listing on page 21 . Description Spare part num ber Keyboard 684252-xx1 Before removing the keyboard, fo llow these steps: 1.
6. Lift the top of the keybo ard at an angle (2) , and then pull the keyboard up to remove it from the palm rest (3) . NOTE: Only pull the keyboard up enough to releas e it from the compute r and flip it over o nto the palm rest. Under the ke yboard, the cable is conne cted to the system board.
Top cover NOTE: All top cover spare part kits in clude a touchpad . Description Spare part num ber Top cover for use in models with a fin gerp rint reader (includes touchpad) 68424 3-001 Top cover for use in m odels without a fi nger print reader (includes touchpad) 684244-00 1 Before removing the top cover, follow these steps: 1.
2. Remove the following covers an d screws that secure the top cover to the computer: (1) 4 rubber screw covers (2) 11 Torx T8M2.5×6.0 screws 48 Chapter 4 Remova l and replacement procedures.
3. Remove the following scre ws that se cure the top cover to the computer: (1) 3 Phillips PM2.0× 2.0 screws from the battery bay (2) 3 Phillips PM2.0×2.0 screws from the optical drive bay 4. Position the compute r uprigh t with the fron t toward you.
5. Disconnect the following cables from the system board: (1) Power button/fu nction board ca ble (2) Audio board cable (3) Fingerprint reader bo ard cable 6.
7. Pry up on the top of the top cover (1) to di sengage it from the computer, and then remove the top cover from the computer (2) . Reverse this procedure to insta ll the top cover.
Fingerprint reader board NOTE: All fingerprint reader assembly sp are part kits include cable, bracket, a nd screws) Description Spare part num ber Fingerprint reader board (includes c able, bracket, and screws)) 683862-001 Before removing the fingerprint r eader board, follow these ste ps: 1.
4. Remove the read er board and cable assembly from th e top cover (4) . Reverse this procedure to in sta ll the fingerprint rea der board. Component replacement procedures 53.
Audio board Description Spare part num ber Audio board (includes cable) 684245-001 Before removing the audio board, follow these steps: 1. Shut down the co mputer. If you are unsure whether th e computer is off or in Hibe rnation, turn the computer on, and th en shut it down thr ough the operating system.
4. Rotate the a udio board upward (3) and then remo ve it from the top cover. Reverse this procedure to in stall the audio board. Component replacement procedures 55.
Function board/Power button board Description Spare part num ber Function board/Power button b oard (includes cable) 684240-001 Before removing the function board and power butto n board, fo llow these steps: 1.
4. Remove the powe r button board from the top cover (3) . Reverse this procedure to insta ll th e function b oard/power button board. Component replacement procedures 57.
RTC battery Description Spare part num ber RTC battery 684248-001 Before r emoving th e RTC bat tery, foll ow these steps: 1. Shut down the co mputer. If you are unsure whether th e computer is off or in Hibe rnation, turn the computer on, and th en shut it down thr ough the operating system.
Speaker assembly Description Spare part num ber Speaker assembly 684242-001 Before removing the speaker assembly, follow these steps: 1. Shut down the co mputer. If you are unsure whether th e computer is off or in Hibe rnation, turn the computer on, and th en shut it down thr ough the operating system.
5. Lift the speakers from the compute r (4) . Reverse this procedu re to install the speake r assembly. Latch assembly NOTE: The Latch Kit includes the latch, knob, and spring. Description Spare part num ber Latch Kit 686319-001 Before removing the latch assembly, follow these steps: 1.
NOTE: The latch assembl y includes a small spring . Note the locatio n of the spri ng. Remove the latch assembly: 1. Position the compute r right-side up, with the front to ward you. 2. Detach the spring hook (1) from the tab on the b ase enclosure (2) .
4. Remove the batt ery (see Battery on page 31 ). 5. Remove the following compo nents: a. Bottom door (see Bottom do or on page 33 ). b. Hard driv e (see Hard drive on page 37 ) c. Optical drive (see Optical drive on page 35 ) d. Keyboard (see Keyboard on page 45 ) e.
4. Lift the right side of the system board up at an angle (2) , and then lift the system board up and to the right to remove it (3) . Reverse this procedure to insta ll the system board. Heat sink NOTE: The fan an d heat sink are comb ined into on e assembly.
e. WWAN module (see WWAN module on page 41 ) f. Keyboard (see Keyboard on page 45 ) g. Top cover (see Top cover on page 47 ) h. System board (see Syste m board on page 61 ) Remove the heat sink: 1. Position the system board upside-down with the front toward you.
8. Lift the heat sink off the system board (3) . NOTE: For discrete models, thorough ly clean thermal material from the surfaces of the system board components (1)(3) and the heat sink (2)(4) each time you remove the hea t sink. All heat sink and processor spare part kits include th ermal material.
Reverse this procedure to insta ll the heat sink. NOTE: To prop erly ventilate the comput er, allow at le ast a 7.6-cm (3-in) clea rance on the l eft side of the computer.
Description Spare part num ber B970, 2.3-GHz, with 2-MB L3 cache 676785-001 Intel Celeron processor B840, 1.9-GHz, with 2-MB L3 cache 664663-001 Before removing the processor, follow these step s: 1.
3. Lift the processor (2) straight up and remove it. NOTE: The gold tria ngle (3) on the processor must be aligne d with the triang le embossed on the processo r slot when you in stall the proc essor.
Display assembly All display assemblies include WLAN antenna transceivers and cables. WWAN models include 2 WWAN antenna transceivers and cables. Description Spare part number Display assembly, 33.8-cm (13.3-inch) HD, anti-glare 684251-001 Before removing the display assembly, follo w these steps: 1.
3. Pull the antennas through the hole th at leads to the top of th e computer (2) . 4. Open the compute r as far as possible. 5. Disconnect th e display cable (1) from the system board and make sure the antenna cable s are all pulled throug h the hole (2) that routes to the bottom of the computer.
7. Lift the display assembly straigh t up and remove it (2) . CAUTION: When i nstalling the display a ssembly, be sure that the wi reless antenna cables are routed and a rranged pr operly. Failure to properly route the ant enna s can result in degradatio n of the computer's WLAN and WWAN perf ormance.
8. If you need to remove the hinge covers from the d isplay hinges, pull th e hinges straight up and off the di splay to r emove the m. Display hinge covers ar e available in the Displa y Hinge Kit using spare part number 684239-001. 9. To replace the disp lay bezel, remove the two screw covers (1) and the two Phillips PM2.
10. Flex the top (1) of the bezel, the inside edges of the left and right side s (2) , and then the bot tom (3) of the bezel until it disengages from the displa y enclosure. 11. Remove the display beze l (4) . The bezel is avail able using sp are part number 68 3858-001.
12. If it is necessar y to replace the we bcam module from th e display enclosure , disconnect the cable from the module (1) , and then gently pull the mo dule away from th e double-sided tape on the display enclosure (2) . The webcam module is a vailable using spar e part number 6835 08-001.
15. Disconnec t the display pa nel cable by rotat ing the display enclosure (1) , lifting the tape (2) that covers the connector, and disconn ecting the cable from the panel (3) . 16. Remove the two Phillips PM1.6×1.5 screws (1) that secure each display hing e to the displ ay panel.
17. Remove the display hin ges (2) . Display hinges are avai lable in the Display Hing e Kit using spa re part number 6842 39-001. Reverse this procedure to rea ssemble an d install the d isplay assembly.
Power connector Description Spare part num ber Power connector cable (includes bracket and screws) 683859-001 Before removing the power cable, follow th ese steps: 1. Shut down the co mputer. If you are unsure whether th e computer is off or in Hibe rnation, turn the computer on, and th en shut it down thr ough the operating system.
4. Remove the power ca ble assembly from the comp uter (3) . NOTE: Note the locatio n of the cable ro uting channel for reassembly. Reverse this procedure to in stall the power connector cable.
5 Computer Setup (BIOS) and Advanced System Diagnostics Using Computer Setup Computer Setup, or Basic Input/Ou tput System (BIOS), controls communication betwe en all the inpu t and output devices on the system (such as disk drive s, display, keyboard, mous e, and printer).
To exit Computer Setup menu s, choose one of the following method s: ● To exit Computer Setup menus without saving your chan ges: Click the Exit icon in the lower-left corn er of the screen, and then follow the o n-screen instructions.
Updating the BIOS The next sections describ e different ways of updating the BIOS. Downloading SoftPaqs to update the BIOS Most BIOS update s on the HP website are packaged in compre ssed files called SoftPaqs . To install BIOS updates from the HP website, follow the steps b elow: 1.
5. Locate the .sig file in the ROM.cab file and rename it with the same prefix as the .b in file (for example, 68CDD.sig). Copy th e renamed file to the Hewlett-PackardBIOS New folder in either the HP_Tools partition of the hard drive, or the USB flash drive.
Downloading a BIOS update CAUTION: To reduce the risk of damage to the computer or an u nsuccessful installation, downlo ad and install a BIOS update only when the computer is connected to reli able external power u sing the AC adapter.
Main menu Select To do this System information ● View and change the system time and date. ● View identification information about your computer. ● View specification information about the pro cessor, memory size, and system BIOS. Security menu Select To do this Administrator password Control access to Setup Utility.
You can view system information and error logs in the Advanced System Diagnostics window. To start Advanced System Diagnostics: 1. Turn on or restart the compu ter. While the “Press the ESC ke y for Startup Me nu” message is displayed in the lo wer-left corner of the screen , press esc .
6 Specifications Computer specifications Metric U.S. Dimensions Length 22.9 cm 9.0 in Width 32.6 cm 12.8 in Height (front to rear) 2.5 to 3.3 cm 1.0 to 1.3 in Weight (equipped with optical drive, 1 SODIMM, hard drive, WLAN module, 6 cell battery) 2.0 kg 4.
Metric U.S. Nonoperating 1.50 g zero-to-peak, 10 Hz to 500 H z, 0.5 oct/min sweep rate NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. The computer opera tes well within this range of temperatures. 33.8-cm (13.3-in), HD display specifications Metric U.
Hard drive specifications 320-GB* Dimensions Height 9.5 mm Width 70 mm Weight 92 g Interface typ e SATA Transfer rate 100 MB/sec Security ATA sec urity Seek times (typical read, including setting) Single track 1.
DVD±RW and CD-RW SuperMulti DL Combo Drive specifications Applicable disc Read: CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD- ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video CD), Multisessi.
Blu-ray ROM DVD±RW SuperMulti DL Drive Applicable disc Read: Write: CD-DA, CD+(E)G, CD-MIDI, CD TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I , CD-I Bridge (Photo-CD, Video CD), Multisession CD (Photo.
Specification information in Device Manager Device Manager allo ws you to view and control the hard ware attached to th e computer, as we ll as provides hardw are specificat ion information. You can also a dd hardware or modify devi ce configurations u sing Device Manager.
7 Backup and recovery To protect you r information, use Windows Backup and Restor e to back up individu al files and folder s, back up your entire hard drive (s elect models only), cr eate syst em rep.
Creating recovery media with HP Recovery Disc Creator HP Recovery Disc Creator is a software program th at offers an alternative way to create recover y media. After you successfull y set up the co mputer, you ca n create recovery media using HP Recovery Disc Creator.
Backing up your information Recovery after a system failure is as good as your most recent backup. Immediately after software setup, you should create system repair discs (select models only ) using HP Recovery Disc Creator and the insta lled optical drive (selec t models only) or an optional e xternal optic al drive to ba ck up your system.
Performing a system recovery In case of system failure or inst ability, the computer provides the following tools to recover your files: ● Windows recovery to ols: You can use Wi ndows Backup and Re store to reco ver information you have previously backed up .
Using f11 recovery tools CAUTION: Using f11 recovery tools completely era ses hard drive contents and reformats the hard drive. All files you ha ve created and an y softwa re installed on the computer are permane ntly removed. The f11 recovery tool reinstalls the operatin g system and HP programs and drivers that were installed at the fa ctory.
After the repair is completed: 1. Eject the Windows 7 ope rating system DVD, and then insert the Driver Recovery disc. 2. Install the Hardwa re Enabling Drivers first, and then install Recommended Ap plications.
8 Power cord set requirements The wide-range input fe ature of the computer perm its it to operate from any line voltage from 100 to 120 volts ac, or from 220 to 240 volts ac. The 3-conductor powe r cord set included wi th t he computer meets the requirem ents for use in the country or region where the e quipment is purchased .
Requirements for specific countries and regions Country/region Accredited agency Applicable note nu mber Argentina IRAM 1 Australia SAA 1 Austria OVE 1 Belgium CEBEC 1 Brazil ABNT 1 Canada CSA 2 Chile.
Country/region Accredited agency Applicable note nu mber The United States UL 2 1. The flexible cord must be Type HO5VV-F, 3 -conductor, 0. 75mm2 conductor size. Power cord set fittings (ap pliance coupler and wall plug) must bear the ce rtif ication mark of the agency responsible for evaluation in the country or r egion where it will be used.
9 Recycling Battery When a non-rechargeable or rechargeable ba ttery has reached the en d of its useful life, do not dispose of the batte ry in general house hold waste.
Perform the following ste ps to di sassemble the display assembly: 1. Remove all screw covers (1) and screws (2 ) that secure the display bezel to the display assembly. 2. Lift up and out o n the left and ri ght inside edges (1) and the top and b ottom inside edge s (2) of the display beze l until the bezel disengag es from the display assemb ly.
4. Disconnect all disp lay panel cables (1) from the display i nverter and remove the in verter (2) . 5. Remove all screws (1) that secure the display panel a ssembly to the display enclosure. 6. Remove the display panel assembly (2) from the display enclosure.
10. Remove the display pan el frame (2) from the display panel. 11. Remove the screws (1) that secure the backlight cover to the display panel. 12. Lift the top edge of the backlig ht cover (2) and swing it outward. 13. Remove the backlight cover. 14.
15. Remove the backlight cables (1) from the clip (2) in the display panel . 16. Position the d isplay panel upside-d own. WARNING ! The backlight contains mercury. Exercise caution when removing and handling t he backlight to avoid damag ing this compon ent and causin g exposure to the mercu ry.
18. Remove the backlight from the backlight frame. 19. Disconnec t the display pa nel cable (1) from the LCD panel. 20. Remove the screws (2) that secure the LCD panel to the display re ar panel. 21. Release the LCD panel (3) from the d isplay rear panel.
Index A AC adapter light 13 AC adapter, spare part numbers 20, 24 advanced system diagnostics 84 antennas disconnec ting 4 1, 43 audio board remov al 54 spare part number 16, 22, 54 audio, product des.
function keys identifying 10 G graphics, pr oduct description 1 grounding equip ment and methods 29 H hard drive precautions 26 product description 2 remov al 37 spare part numbers 16, 19, 37 specific.
webcam 2 wireless 2 product name 1 R recovery partition 96 removal/replacement preliminaries 25 procedures 30 restoring the ha rd drive 96 RJ-45 (network) jack, identifying 12 RTC battery remov al 58 .
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If you have not bought HP (Hewlett-Packard) 4340S yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data HP (Hewlett-Packard) 4340S - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, HP (Hewlett-Packard) 4340S you will learn all the available features of the product, as well as information on its operation. The information that you get HP (Hewlett-Packard) 4340S will certainly help you make a decision on the purchase.
If you already are a holder of HP (Hewlett-Packard) 4340S, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime HP (Hewlett-Packard) 4340S.
However, one of the most important roles played by the user manual is to help in solving problems with HP (Hewlett-Packard) 4340S. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device HP (Hewlett-Packard) 4340S along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
