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IBM ThinkPad X20, X21, X22, X23, Step, Screw quantity, Torque, M2.6 ⋅ 4mm 4 BK, Ncm 3 kgfcm

Models: X21 X20 X22 X24 X23

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M2.6 ⋅ 4mm (4) BK

Step	Screw (quantity)	Torque

	M2.6 ⋅ 4mm (4) BK	29.4 Ncm (3 kgfcm)

	M2 ⋅ 8mm,	29.4 Ncm (3 kgfcm)
	Nylock-coated(2) BK

78ThinkPad X20, X21, X22, X23, X24

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IBM X24 manual ThinkPad X20, X21, X22, X23, Step, Screw quantity, Torque, M2.6 ⋅ 4mm 4 BK, Ncm 3 kgfcm, M2 ⋅ 8mm

Contents

ThinkPad X20, X21, X22 X24 Hardware Maintenance Manual First Edition March Chapter 2. General descriptions ContentsChapter 1. Introduction Chapter 3. ThinkPad X20, X21, X22, X23Chapter 4. Notices Before replacing parts Important service informationFRU replacement strategy Chapter 1. IntroductionHow to use error messages Hard disk drive replacement strategyHow to read POST error messages Safety notices multilingual translations Safety NoticeSafety Notice 4 ThinkPad X20, X21, X22, X23Safety Notice Safety Notice Las baterías contienen pequeñas cantidades deSafety Notice Safety Notice 8 ThinkPad X20, X21, X22, X23Safety Notice Safety Notice Safety Notice10 ThinkPad X20, X21, X22, X23 Safety Notice Safety information General safetyElectrical safety Safety inspection guide Handling electrostatic discharge-sensitive devices Grounding requirements Laser compliance statement Laser radiation 18 ThinkPad X20, X21, X22, X23Chapter 1. Introduction DANGER Chapter 2. General descriptions v Only certified trained personnel should service the computerv Use new nylon-coated screws when you replace FRUs Read this firstThe following are not covered under warranty magnetic fields v I9990303 errors can be caused by exposure to strongChapter 2. General descriptions Product recovery program Related service informationService Web site Restoring the Pre-installed SoftwareInstall preloaded system from CD Using Recovery CDTo create Service Partition SP “ENTER”Passwords Creating a Recovery Repair disketteTo use the Recovery Repair diskette Page Power management How to remove the hard-disk passwordTo enter standby mode, do any of the following v Press Fn + F4 v The LCD is powered off v The hard disk drive is powered offv The CPU stops v If the AC adapter is plugged inHibernation mode Note for Windows NT Power switch mode HibernationChapter 2. General descriptions Testing the computer Checkout guideDiagnostics 4. Run the applicable function test Hardware Info Power system checkoutDetecting system information with PC-Doctor Utilityv ″Checking the AC adapter″ v ″Checking operational charging″ Checking the backup battery Do the following 2. Turn the computer upside down Chapter 3. ThinkPad X20, X21, X22, X23 For X22, X23 Windows XP Pro recovery CDs Windows 98 recovery CDsWindows 2000 recovery CDs Windows XP Home recovery CDsv Specifications v Status indicators v Fn key combinations SpecificationsProduct overview This section presents the following product-unique informationChapter 3. ThinkPad X20, X21, X22, X23, X24 Status indicators 44 ThinkPad X20, X21, X22, X23Applicable test 46 ThinkPad X20, X21, X22, X23 Fn key combinations Symptom-to-FRU index Numeric error codesChapter 3. ThinkPad X20, X21, X22, X23, X24 Error messages 50 ThinkPad X20, X21, X22, X23Beep symptoms No beep symptomsLCD-related symptoms Intermittent problemsUndetermined problems 90 degrees more Cross section FRU replacement noticesScrew notices v Plastic to plasticRestoring the serial number of the system unit Retaining serial numbers180 degrees more Cross section v Torque driverRetaining the UUID IdentificationRemoving and replacing a FRU 1010 Battery pack Screw quantity 1020 DIMMStep Torquev Battery pack v DIMM 1030 Backup battery60 ThinkPad X20, X21, X22, X23 1040 Hard disk drive Attention Do not drop the hard disk drive or apply62 ThinkPad X20, X21, X22, X23 1050 Keyboard For X20A B C D E When installing When installing the keyboard, do as follows64 ThinkPad X20, X21, X22, X23 For X22, X23 Chapter 3. ThinkPad X20, X21, X22, X23, X24When installing When installing the keyboard, do as follows 66 ThinkPad X20, X21, X22, X23frame A B C D E 1060 KBD Control Panel Assemblev Battery pack v Keyboard assembly Chapter 3. ThinkPad X20, X21, X22, X23, X242. Press the KBD Control Panel until its snaps fit 68 ThinkPad X20, X21, X22, X23For X20 1070 Mini PCI adapterFor X22, X23 For X22, X23 1080 CDC adapterAntenna RF Connector removal 08K71591090 BDC adapter For X23For X20 1100 Fan assembly⋅ 6mm, Nylock-coated For X22 Chapter 3. ThinkPad X20, X21, X22, X23, X241110 Wirelesslan assembly for X22 X24 10mm1120 LCD assembly For X20ThinkPad 76 ThinkPad X20, X21, X22, X23ThinkPad For X22, X23 Chapter 3. ThinkPad X20, X21, X22, X23, X24Screw quantity 78 ThinkPad X20, X21, X22, X23Step Torque1130 Case Keyboard deck For X20Case Keyboard deck up then remove it For X22, X2380 ThinkPad X20, X21, X22, X23 Step Case Keyboard deck up then remove itChapter 3. ThinkPad X20, X21, X22, X23, X24 Screw quantity1140 Speaker For X20For X22, X23 When installing Make sure that you fasten the connector firmlyChapter 3. ThinkPad X20, X21, X22, X23, X24 1150 PC Card slot assembly For X201160 IRDA Port For X22, X23For X22, X23 86 ThinkPad X20, X21, X22, X231170 RJ11, RJ45 For X20For X22, X23 88 ThinkPad X20, X21, X22, X231180 System board For X20For X22 90 ThinkPad X20, X21, X22, X23v LCD assembly 1190 LCD USB cover 1200 Front bezelv Battery pack v Keyboard assembly v Wirelesslan assembly Chapter 3. ThinkPad X20, X21, X22, X23, X24Screw quantity 92 ThinkPad X20, X21, X22, X23Step Torque1210 LCD panel XGA for X20SVGA for X20 94 ThinkPad X20, X21, X22, X23Screw quantity Chapter 3. ThinkPad X20, X21, X22, X23, X24Step TorqueXGA for X22, X23 96 ThinkPad X20, X21, X22, X23Screw quantity Chapter 3. ThinkPad X20, X21, X22, X23, X24Step TorqueSystem status indicators Power switch Locations Front view for X20Front view for Battery and standby mode status indicators USB port Hard Disk DriveFront view for X23 ThinkPad Button TrackPoint pointing stick TrackPoint Buttons 100 ThinkPad X20, X21, X22, X23PC Card eject button Security keyhole Power jack Rear view for X20Rear view for X22, X23 Universal serial bus USB connector External-monitor connectorModem connector Power jack External-monitor connectorUniversal serial bus USB connector Line-in jack LAN connector PC card slot PC Card eject button IrDA port Security keyholeLCD latches Bottom viewBattery Pack Battery Pack latches Docking connector Memory cover Chapter 3. ThinkPad X20, X21, X22, X23, X24Parts List X20 series model matrix X21 series model matrixX22 series model matrix X23 series model matrixX24 series model matrix 106 ThinkPad X20, X21, X22, X23LCD FRU 12.1-inch XGA TFT X2012.1-inch SVGA TFT 108 ThinkPad X20, X21, X22, X23Chapter 3. ThinkPad X20, X21, X22, X23, X24 12.1-inch XGA TFT X22, X23 110 ThinkPad X20, X21, X22, X23Description Chapter 3. ThinkPad X20, X21, X22, X23, X24FRU No For X20 System112 ThinkPad X20, X21, X22, X23 Chapter 3. ThinkPad X20, X21, X22, X23, X24 114 ThinkPad X20, X21, X22, X23 1820Chapter 3. ThinkPad X20, X21, X22, X23, X24 116 ThinkPad X20, X21, X22, X23 1820 Chapter 3. ThinkPad X20, X21, X22, X23, X24118 ThinkPad X20, X21, X22, X23 1820 Chapter 3. ThinkPad X20, X21, X22, X23, X24120 ThinkPad X20, X21, X22, X23 For X20 KeyboardFor X22, X23 Base Cover FRU 122 ThinkPad X20, X21, X22, X23Chapter 3. ThinkPad X20, X21, X22, X23, X24 Windows 98 recovery CDs Recovery CDs for X21 Series124 ThinkPad X20, X21, X22, X23 Windows 2000/Windows NT recovery CDs Windows 2000 recovery CDsChapter 3. ThinkPad X20, X21, X22, X23, X24 Windows 98 recovery CDs Recovery CDs for X22 SeriesWindows Me recovery CDs Windows 2000 recovery CDsWindows XP Home recovery CDs Windows XP Pro recovery CDsChapter 3. ThinkPad X20, X21, X22, X23, X24 Windows XP Pro recovery CDs Recovery CDs for X23 SeriesWindows 2000 recovery CDs 128 ThinkPad X20, X21, X22, X23Windows XP Home recovery CDs Recovery CDs for X24 SeriesWindows 2000 recovery CDs Windows XP Pro recovery CDs 130 ThinkPad X20, X21, X22, X23Windows XP Home recovery CDs Miscellaneous partsFor X20 For X22 132 ThinkPad X20, X21, X22, X23Options FRU list For X20For X22, X23 134 ThinkPad X20, X21, X22, X23For 2-pin power cords Common parts list X20, X21, X22, X23Power code system For 3-pin power cordsX20specific country are usually available only in that region For 3-pin power cordsX22, X23AC adapterX22, X23, X24 IBM power cords for a 136 ThinkPad X20, X21, X22, X23Chapter 4. Notices Trademarks