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IBM X23, X24, X22, X20, X21 manual General descriptions

Models: X21 X20 X22 X24 X23

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vA critically low battery condition occurs and the mode is set to Hibernate when battery becomes low.

When the power is turned on, the computer leaves hibernation mode and resumes operation. The hibernation file in the boot record on the hard disk drive is read, and system status is restored from the hard disk drive.

Chapter 2. General descriptions 31

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IBM X23, X24, X22, X20, X21 manual General descriptions

Contents

ThinkPad X20, X21, X22 X24 Hardware Maintenance Manual First Edition March Chapter 3. ThinkPad X20, X21, X22, X23 ContentsChapter 1. Introduction Chapter 2. General descriptionsChapter 4. Notices Chapter 1. Introduction Important service informationFRU replacement strategy Before replacing partsHow to read POST error messages Hard disk drive replacement strategyHow to use error messages Safety Notice Safety notices multilingual translations4 ThinkPad X20, X21, X22, X23 Safety NoticeSafety Notice Las baterías contienen pequeñas cantidades de Safety NoticeSafety Notice 8 ThinkPad X20, X21, X22, X23 Safety NoticeSafety Notice 10 ThinkPad X20, X21, X22, X23 Safety NoticeSafety Notice Safety Notice General safety Safety informationElectrical safety Safety inspection guide Handling electrostatic discharge-sensitive devices Grounding requirements Laser compliance statement 18 ThinkPad X20, X21, X22, X23 Laser radiationChapter 1. Introduction DANGER Read this first v Only certified trained personnel should service the computerv Use new nylon-coated screws when you replace FRUs Chapter 2. General descriptionsThe following are not covered under warranty Chapter 2. General descriptions v I9990303 errors can be caused by exposure to strongmagnetic fields Restoring the Pre-installed Software Related service informationService Web site Product recovery program“ENTER” Using Recovery CDTo create Service Partition SP Install preloaded system from CDTo use the Recovery Repair diskette Creating a Recovery Repair diskettePasswords Page How to remove the hard-disk password Power managementv If the AC adapter is plugged in v The LCD is powered off v The hard disk drive is powered offv The CPU stops To enter standby mode, do any of the following v Press Fn + F4Power switch mode Hibernation Hibernation mode Note for Windows NTChapter 2. General descriptions Checkout guide Testing the computerDiagnostics 4. Run the applicable function test Utility Power system checkoutDetecting system information with PC-Doctor Hardware Infov ″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 Home recovery CDs Windows 98 recovery CDsWindows 2000 recovery CDs Windows XP Pro recovery CDsThis section presents the following product-unique information SpecificationsProduct overview v Specifications v Status indicators v Fn key combinationsChapter 3. ThinkPad X20, X21, X22, X23, X24 44 ThinkPad X20, X21, X22, X23 Status indicatorsApplicable test 46 ThinkPad X20, X21, X22, X23 Fn key combinations Numeric error codes Symptom-to-FRU indexChapter 3. ThinkPad X20, X21, X22, X23, X24 50 ThinkPad X20, X21, X22, X23 Error messagesNo beep symptoms Beep symptomsIntermittent problems LCD-related symptomsUndetermined problems v Plastic to plastic FRU replacement noticesScrew notices 90 degrees more Cross sectionv Torque driver Retaining serial numbers180 degrees more Cross section Restoring the serial number of the system unitIdentification Retaining the UUIDRemoving and replacing a FRU 1010 Battery pack Torque 1020 DIMMStep Screw quantity60 ThinkPad X20, X21, X22, X23 1030 Backup batteryv Battery pack v DIMM Attention Do not drop the hard disk drive or apply 1040 Hard disk drive62 ThinkPad X20, X21, X22, X23 For X20 1050 Keyboard64 ThinkPad X20, X21, X22, X23 When installing When installing the keyboard, do as followsA B C D E Chapter 3. ThinkPad X20, X21, X22, X23, X24 For X22, X2366 ThinkPad X20, X21, X22, X23 When installing When installing the keyboard, do as followsChapter 3. ThinkPad X20, X21, X22, X23, X24 1060 KBD Control Panel Assemblev Battery pack v Keyboard assembly frame A B C D E68 ThinkPad X20, X21, X22, X23 2. Press the KBD Control Panel until its snaps fitFor X22, X23 1070 Mini PCI adapterFor X20 08K7159 1080 CDC adapterAntenna RF Connector removal For X22, X23For X23 1090 BDC adapter⋅ 6mm, Nylock-coated 1100 Fan assemblyFor X20 Chapter 3. ThinkPad X20, X21, X22, X23, X24 For X2210mm 1110 Wirelesslan assembly for X22 X24For X20 1120 LCD assemblyThinkPad 76 ThinkPad X20, X21, X22, X23ThinkPad Chapter 3. ThinkPad X20, X21, X22, X23, X24 For X22, X23Torque 78 ThinkPad X20, X21, X22, X23Step Screw quantityFor X20 1130 Case Keyboard deck80 ThinkPad X20, X21, X22, X23 For X22, X23Case Keyboard deck up then remove it Screw quantity Case Keyboard deck up then remove itChapter 3. ThinkPad X20, X21, X22, X23, X24 StepFor X20 1140 SpeakerChapter 3. ThinkPad X20, X21, X22, X23, X24 When installing Make sure that you fasten the connector firmlyFor X22, X23 For X20 1150 PC Card slot assemblyFor X22, X23 1160 IRDA Port86 ThinkPad X20, X21, X22, X23 For X22, X23For X20 1170 RJ11, RJ4588 ThinkPad X20, X21, X22, X23 For X22, X23For X20 1180 System board90 ThinkPad X20, X21, X22, X23 For X22Chapter 3. ThinkPad X20, X21, X22, X23, X24 1190 LCD USB cover 1200 Front bezelv Battery pack v Keyboard assembly v Wirelesslan assembly v LCD assemblyTorque 92 ThinkPad X20, X21, X22, X23Step Screw quantityXGA for X20 1210 LCD panel94 ThinkPad X20, X21, X22, X23 SVGA for X20Torque Chapter 3. ThinkPad X20, X21, X22, X23, X24Step Screw quantity96 ThinkPad X20, X21, X22, X23 XGA for X22, X23Torque Chapter 3. ThinkPad X20, X21, X22, X23, X24Step Screw quantityBattery and standby mode status indicators USB port Hard Disk Drive Locations Front view for X20Front view for System status indicators Power switchFront view for X23 100 ThinkPad X20, X21, X22, X23 ThinkPad Button TrackPoint pointing stick TrackPoint ButtonsUniversal serial bus USB connector External-monitor connector Rear view for X20Rear view for X22, X23 PC Card eject button Security keyhole Power jackPC card slot PC Card eject button IrDA port Security keyhole Power jack External-monitor connectorUniversal serial bus USB connector Line-in jack LAN connector Modem connectorChapter 3. ThinkPad X20, X21, X22, X23, X24 Bottom viewBattery Pack Battery Pack latches Docking connector Memory cover LCD latchesX21 series model matrix Parts List X20 series model matrixX23 series model matrix X22 series model matrix106 ThinkPad X20, X21, X22, X23 X24 series model matrix12.1-inch XGA TFT X20 LCD FRU108 ThinkPad X20, X21, X22, X23 12.1-inch SVGA TFTChapter 3. ThinkPad X20, X21, X22, X23, X24 110 ThinkPad X20, X21, X22, X23 12.1-inch XGA TFT X22, X23FRU No Chapter 3. ThinkPad X20, X21, X22, X23, X24Description 112 ThinkPad X20, X21, X22, X23 SystemFor X20 Chapter 3. ThinkPad X20, X21, X22, X23, X24 1820 114 ThinkPad X20, X21, X22, X23Chapter 3. ThinkPad X20, X21, X22, X23, X24 116 ThinkPad X20, X21, X22, X23 Chapter 3. ThinkPad X20, X21, X22, X23, X24 1820118 ThinkPad X20, X21, X22, X23 Chapter 3. ThinkPad X20, X21, X22, X23, X24 1820120 ThinkPad X20, X21, X22, X23 For X22, X23 KeyboardFor X20 122 ThinkPad X20, X21, X22, X23 Base Cover FRUChapter 3. ThinkPad X20, X21, X22, X23, X24 124 ThinkPad X20, X21, X22, X23 Recovery CDs for X21 SeriesWindows 98 recovery CDs Chapter 3. ThinkPad X20, X21, X22, X23, X24 Windows 2000 recovery CDsWindows 2000/Windows NT recovery CDs Windows 2000 recovery CDs Recovery CDs for X22 SeriesWindows Me recovery CDs Windows 98 recovery CDsChapter 3. ThinkPad X20, X21, X22, X23, X24 Windows XP Pro recovery CDsWindows XP Home recovery CDs 128 ThinkPad X20, X21, X22, X23 Recovery CDs for X23 SeriesWindows 2000 recovery CDs Windows XP Pro recovery CDsWindows 2000 recovery CDs Recovery CDs for X24 SeriesWindows XP Home recovery CDs 130 ThinkPad X20, X21, X22, X23 Windows XP Pro recovery CDsFor X20 Miscellaneous partsWindows XP Home recovery CDs 132 ThinkPad X20, X21, X22, X23 For X22For X20 Options FRU list134 ThinkPad X20, X21, X22, X23 For X22, X23For 3-pin power cordsX20 Common parts list X20, X21, X22, X23Power code system For 2-pin power cords136 ThinkPad X20, X21, X22, X23 For 3-pin power cordsX22, X23AC adapterX22, X23, X24 IBM power cords for a specific country are usually available only in that regionTrademarks Chapter 4. Notices