Chapter 3. ThinkPad X20, X21, X22,
X23, X24
Product overview .
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Specifications .
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Status indicators .
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Fn key combinations .
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Symptom-to-FRU index .
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Numeric error codes .
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Error messages
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Beep symptoms
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No beep symptoms
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LCD-related symptoms .
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Intermittent problems .
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Undetermined problems .
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FRU replacement notices
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Screw notices .
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Retaining serial numbers.
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Restoring the serial number of the system unit
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Retaining the UUID
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Removing and replacing a FRU.
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1010 Battery pack.
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1020 DIMM
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1030 Backup battery .
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1040 Hard disk drive .
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1050 Keyboard
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For X20, X21 .
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For X22, X23, X24
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1060 KBD Control Panel Assemble
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1070 Mini PCI adapter
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For X20, X21 .
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For X22, X23, X24
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1080 CDC adapter
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For X22, X23, X24
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1090 BDC adapter
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For X23, X24 .
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1100 Fan assembly .
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For X20, X21 .
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For X22, X23 .
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For X24.
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1110 Wirelesslan assembly for X22, X23, X24
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1120 LCD assembly .
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For X20, X21 .
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For X22, X23, X24
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1130 Case Keyboard deck .
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For X20, X21 .
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For X22, X23, X24
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1140 Speaker .
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For X20, X21 .
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For X22, X23, X24
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1150 PC Card slot assembly
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For X20, X21 .
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. 84
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