Hardware Maintenance Manual
Page 45
ThinkPad T20, T21, T22 and T23 series Product overview 41 Specifications 43 Status indicators 45 FRU Tests 47 Fn key combinations 48 Symptom-to-FRU index 49 Numeric error codes 49 Error messages 52 Beep symptoms 53 No-beep symptoms 53 LCD-related symptoms 54 Intermittent problems 55 Undetermined problems 55 FRU replacement notices... 84 For T22 series 86 For T23 series 87 1110 Keyboard bezel 88 For T20, T21 and T22 series 89 For T23 series 92 1120 Fan assembly 94 For T20, T21, T22 series 94 For T23 series 97 1130 CPU 98 For T20, T21 and T22 series 98 For T23 series...
ThinkPad T20, T21, T22 and T23 series Product overview 41 Specifications 43 Status indicators 45 FRU Tests 47 Fn key combinations 48 Symptom-to-FRU index 49 Numeric error codes 49 Error messages 52 Beep symptoms 53 No-beep symptoms 53 LCD-related symptoms 54 Intermittent problems 55 Undetermined problems 55 FRU replacement notices... 84 For T22 series 86 For T23 series 87 1110 Keyboard bezel 88 For T20, T21 and T22 series 89 For T23 series 92 1120 Fan assembly 94 For T20, T21, T22 series 94 For T23 series 97 1130 CPU 98 For T20, T21 and T22 series 98 For T23 series...
Hardware Maintenance Manual
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...Diskette Drives 2. Interactive Tests --> Diskette CD-ROM, DVD, 1. Full. If two DIMMs are installed, remove one , and run the test again. 3. Fan 1. Diagnostics --> Other Devices --> CD-RW or CD-ROM/DVD CD-RW/DVD combo drive 2. If the problem does not recur, return the DIMM to ..., remove the other one of them and run Diagnostics --> Memory Test - If the test does not detect the error, run Diagnostics --> Memory Test - Product overview FRU Applicable test Diskette drive 1. Run Diagnostics --> Other Devices --> IBM Fan. ThinkPad T20, T21, T22 and T23 series 47
...Diskette Drives 2. Interactive Tests --> Diskette CD-ROM, DVD, 1. Full. If two DIMMs are installed, remove one , and run the test again. 3. Fan 1. Diagnostics --> Other Devices --> CD-RW or CD-ROM/DVD CD-RW/DVD combo drive 2. If the problem does not recur, return the DIMM to ..., remove the other one of them and run Diagnostics --> Memory Test - If the test does not detect the error, run Diagnostics --> Memory Test - Product overview FRU Applicable test Diskette drive 1. Run Diagnostics --> Other Devices --> IBM Fan. ThinkPad T20, T21, T22 and T23 series 47
Hardware Maintenance Manual
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... Fan error. Thermal sensing error. System board. 1. Backup battery. 3. System board. 1. Check that the operating system has no failure and is installed correctly. 2. Reseat the hard-disk drive. 4. Load "Setup Defaults" in IBM BIOS Setup Utility. 2. System board. 1. Allocation error for...Error messages Symptom or error Device address conflict. Load "Setup Defaults" in IBM BIOS Setup Utility. 2. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. 3. Reinstall the operating system. 5. System board. 52 ThinkPad...
... Fan error. Thermal sensing error. System board. 1. Backup battery. 3. System board. 1. Check that the operating system has no failure and is installed correctly. 2. Reseat the hard-disk drive. 4. Load "Setup Defaults" in IBM BIOS Setup Utility. 2. System board. 1. Allocation error for...Error messages Symptom or error Device address conflict. Load "Setup Defaults" in IBM BIOS Setup Utility. 2. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. 3. Reinstall the operating system. 5. System board. 52 ThinkPad...