Hardware Maintenance Manual
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IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual April 2002 This manual supports: ThinkPad T20, T21, T22, T23 (MT 2647/2648) ThinkPad Dock (MT 2631)
IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual April 2002 This manual supports: ThinkPad T20, T21, T22, T23 (MT 2647/2648) ThinkPad Dock (MT 2631)
Hardware Maintenance Manual
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...changes will be construed to mean that are inconsistent with IBM Corp. Such references or information must not be incorporated in your country. Note Before using this information and the product it supports, be made to the products or the programs described in... certain transactions; Changes are periodically made to your IBM authorized dealer or your IBM marketing representative. © Copyright International Business Machines Corporation 2002...
...changes will be construed to mean that are inconsistent with IBM Corp. Such references or information must not be incorporated in your country. Note Before using this information and the product it supports, be made to the products or the programs described in... certain transactions; Changes are periodically made to your IBM authorized dealer or your IBM marketing representative. © Copyright International Business Machines Corporation 2002...
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... assistance or download information. Before replacing the adapter or device, remove the FRUs, one by one . Customers in effect. © Copyright IBM Corp. 2002 1 If you are instructed to see if the symptoms change. Note the current configuration settings (using the View Configuration option); Use... of them does not correct the problem, reinstall that changed the symptoms. Attention: The setup configuration on the IBM support site http://www.ibm.com/pc/support Advise customers to replace either the processor board or the system board, and replacing one FRU, any diskette fixes.
... assistance or download information. Before replacing the adapter or device, remove the FRUs, one by one . Customers in effect. © Copyright IBM Corp. 2002 1 If you are instructed to see if the symptoms change. Note the current configuration settings (using the View Configuration option); Use... of them does not correct the problem, reinstall that changed the symptoms. Attention: The setup configuration on the IBM support site http://www.ibm.com/pc/support Advise customers to replace either the processor board or the system board, and replacing one FRU, any diskette fixes.
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... to reinstall Windows NT with FAT format. To cause the computer to enter hibernation mode, do undock it is powered off the power switch. 30 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Related service information v Turn on the resume timer elapses. Wait a few seconds before resuming normal operation. ... in either of the following events: v The ring indicator (RI) is signaled by a serial device or a PC Card device (Windows 2000 does not support the ring indicator (RI) resume by PC Card device.) v The time set the mode to resume normal operation, you will get an error message, and...
... to reinstall Windows NT with FAT format. To cause the computer to enter hibernation mode, do undock it is powered off the power switch. 30 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Related service information v Turn on the resume timer elapses. Wait a few seconds before resuming normal operation. ... in either of the following events: v The ring indicator (RI) is signaled by a serial device or a PC Card device (Windows 2000 does not support the ring indicator (RI) resume by PC Card device.) v The time set the mode to resume normal operation, you will get an error message, and...
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... correcting problems with the TrackPoint. If the computer cannot be used to "Power system checkout" on page 35, and check the power sources. 32 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Note: The diagnostic tests are disabled, such as possible. 2. Note: When you test one of..., some possible configurations of errors and invalid system responses. 1. Identify the failing symptoms in the docking station, even if the computer supports the docking station. On the IBM BIOS Setup Utility screen, press F9, Enter, F10, and then Enter. then power on , go to test a device that ...
... correcting problems with the TrackPoint. If the computer cannot be used to "Power system checkout" on page 35, and check the power sources. 32 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Note: The diagnostic tests are disabled, such as possible. 2. Note: When you test one of..., some possible configurations of errors and invalid system responses. 1. Identify the failing symptoms in the docking station, even if the computer supports the docking station. On the IBM BIOS Setup Utility screen, press F9, Enter, F10, and then Enter. then power on , go to test a device that ...
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... media is not recognized in the Stereo Speaker in Interactive Tests, the Fn key is attached to the ThinkPad. The main panel of PC-Doctor appears. 3. v Video Adapter test supports only the LCD display on the screen. 2. General descriptions 33 Select Diagnostics with the arrow keys, and... press Enter. otherwise, it , use the audio device test in the Other Devices in the IBM BIOS Setup Utility, Diskette Drives test is...
... media is not recognized in the Stereo Speaker in Interactive Tests, the Fn key is attached to the ThinkPad. The main panel of PC-Doctor appears. 3. v Video Adapter test supports only the LCD display on the screen. 2. General descriptions 33 Select Diagnostics with the arrow keys, and... press Enter. otherwise, it , use the audio device test in the Other Devices in the IBM BIOS Setup Utility, Diskette Drives test is...
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... LCD Info Utility v Run External Tests v Surface Scan Hard Disk v Benchmark System v DOS Shell v Tech Support Form v Battery Rundown v View Test Log v Print Log v Save Log v Full Erase Hard Drive v Quick Erase Hard Drive 34 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Full Memory Test - Quick Hardware Info Utility Quit F1...
... LCD Info Utility v Run External Tests v Surface Scan Hard Disk v Benchmark System v DOS Shell v Tech Support Form v Battery Rundown v View Test Log v Print Log v Save Log v Full Erase Hard Drive v Quick Erase Hard Drive 34 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Full Memory Test - Quick Hardware Info Utility Quit F1...
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...or hibernation mode, or is fully charged. This indicator does not blink in standby mode. Note: If you are on, you can be charged. ThinkPad T20, T21, T22 and T23 series 45 Green: This indicator stays lighted whenever the computer is on 6 Battery 7 Standby status 8 Ultrabay status... the computer beeps three times. Green: The computer is enabled. Green: An Ultrabay 2000 device is being detached. Not all application programs support this function. If the power-on indicator is on indicator and the standby indicator are using Windows 2000 or Windows XP, the Ultrabay status...
...or hibernation mode, or is fully charged. This indicator does not blink in standby mode. Note: If you are on, you can be charged. ThinkPad T20, T21, T22 and T23 series 45 Green: This indicator stays lighted whenever the computer is on 6 Battery 7 Standby status 8 Ultrabay status... the computer beeps three times. Green: The computer is enabled. Green: An Ultrabay 2000 device is being detached. Not all application programs support this function. If the power-on indicator is on indicator and the standby indicator are using Windows 2000 or Windows XP, the Ultrabay status...
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... To return to normal operation, press the Fn key independently, without pressing a function key. The LCD becomes brighter. The LCD becomes less bright. 48 ThinkPad T20, T21, T22, T23 (MT 2647/2648) To turn the LCD display on . Switch between the LCD and an external monitor (CRT). Reserved. ...CRT display v LCD+CRT display v LCD Turn screen expansion on or off. (There is no symbol on the key.) Note: This function is not supported in Windows 2000 and Windows XP, you must have IBM PM device driver installed on your computer. Reserved. Reserved. Turn hibernation mode on.
... To return to normal operation, press the Fn key independently, without pressing a function key. The LCD becomes brighter. The LCD becomes less bright. 48 ThinkPad T20, T21, T22, T23 (MT 2647/2648) To turn the LCD display on . Switch between the LCD and an external monitor (CRT). Reserved. ...CRT display v LCD+CRT display v LCD Turn screen expansion on or off. (There is no symbol on the key.) Note: This function is not supported in Windows 2000 and Windows XP, you must have IBM PM device driver installed on your computer. Reserved. Reserved. Turn hibernation mode on.
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... to -FRU index in this section lists symptoms and errors and their possible causes. ThinkPad T20, T21, T22 and T23 series 49 Do not replace a nondefective FRU. Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for each error detected in boldface type. If no...
... to -FRU index in this section lists symptoms and errors and their possible causes. ThinkPad T20, T21, T22 and T23 series 49 Do not replace a nondefective FRU. Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for each error detected in boldface type. If no...
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... for damage. Undetermined problems You are here because the diagnostic tests did not identify which adapter or device failed, wrong devices are supported by the FRU code. Replace any error is detected, do the following: 1. Remove or disconnect all attached devices are installed, a... 2. Rerun the test to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. DIMM h. Non-IBM devices b. LCD assembly ThinkPad T20, T21, T22 and T23 series 55 Verify that no defects). Hard-disk drive f. Printer, mouse, and other external devices d....
... for damage. Undetermined problems You are here because the diagnostic tests did not identify which adapter or device failed, wrong devices are supported by the FRU code. Replace any error is detected, do the following: 1. Remove or disconnect all attached devices are installed, a... 2. Rerun the test to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. DIMM h. Non-IBM devices b. LCD assembly ThinkPad T20, T21, T22 and T23 series 55 Verify that no defects). Hard-disk drive f. Printer, mouse, and other external devices d....
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Disconnect either (A) or (B) in step 6 . This slot also supports a Mini PCI modem card or Mini PCI network card. 3 4 (B) (A) 4 (continued) 5 (B) 6 (A) ThinkPad T20, T21, T22 and T23 series 67 Removing and replacing a FRU Note: The following illustration shows the combo card. Connector (A) is for the LAN feature and (B) is for the modem feature.
Disconnect either (A) or (B) in step 6 . This slot also supports a Mini PCI modem card or Mini PCI network card. 3 4 (B) (A) 4 (continued) 5 (B) 6 (A) ThinkPad T20, T21, T22 and T23 series 67 Removing and replacing a FRU Note: The following illustration shows the combo card. Connector (A) is for the LAN feature and (B) is for the modem feature.
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Ultrabay 2000 also supports Ultrabay Plus device, such as Ultrabay Plus carrier. Removing and replacing a FRU 1070 Ultrabay 2000 device Any of several devices can be inserted into the Ultrabay 2000. Pull the lever a little in step 1 the lever pops out. Note: When you release the switch in step 2 to release the device from the bay. 1 2 3 ThinkPad T20, T21, T22 and T23 series 73 The procedure for installing and removing is the same for every device.
Ultrabay 2000 also supports Ultrabay Plus device, such as Ultrabay Plus carrier. Removing and replacing a FRU 1070 Ultrabay 2000 device Any of several devices can be inserted into the Ultrabay 2000. Pull the lever a little in step 1 the lever pops out. Note: When you release the switch in step 2 to release the device from the bay. 1 2 3 ThinkPad T20, T21, T22 and T23 series 73 The procedure for installing and removing is the same for every device.
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...ESD fan cover v (d) ESD plate spring CSB v (e) ESD bracket, FPC v (f) Keyboard support v (24) ESD bracket, LCD FPC v (k) Speaker RF bracket v Mini PCI guide v Grease v Screw caps v Screw caps, rear P/N 12P4226 12P4227 12P4228 (continued) 168 ThinkPad T20, T21, T22, T23 (MT 2647/2648) System miscellaneous parts for T21 series: v...(l) Hard-disk bay guide rail v (b) Insulator, keyboard CRU v (c) ESD fan cover v (d) ESD plate spring CSB v (e) ESD bracket, FPC v (f) Keyboard support v (24) Bracket, LCD FRC v Mini PCI guide v Grease v Screw caps v Screw caps, rear Note: 12P4227 does not contain k.
...ESD fan cover v (d) ESD plate spring CSB v (e) ESD bracket, FPC v (f) Keyboard support v (24) ESD bracket, LCD FPC v (k) Speaker RF bracket v Mini PCI guide v Grease v Screw caps v Screw caps, rear P/N 12P4226 12P4227 12P4228 (continued) 168 ThinkPad T20, T21, T22, T23 (MT 2647/2648) System miscellaneous parts for T21 series: v...(l) Hard-disk bay guide rail v (b) Insulator, keyboard CRU v (c) ESD fan cover v (d) ESD plate spring CSB v (e) ESD bracket, FPC v (f) Keyboard support v (24) Bracket, LCD FRC v Mini PCI guide v Grease v Screw caps v Screw caps, rear Note: 12P4227 does not contain k.