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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.... Before servicing an IBM ThinkPad product, be sure to review the safety information under "Safety notices: multilingual translations" on page 3, "Safety information" on page 13, and "Laser compliance statement" on page 18. © Copyright IBM Corp. 2002 iii Important This manual is divided into sections as follows: v The common sections ... information required in servicing computers. About this manual along with the advanced diagnostic tests to troubleshoot problems. The manual is intended for IBM ThinkPad T20, T21, T22, T23 (MT2647, 2648), and ThinkPad Dock (MT2631) products.
.... Before servicing an IBM ThinkPad product, be sure to review the safety information under "Safety notices: multilingual translations" on page 3, "Safety information" on page 13, and "Laser compliance statement" on page 18. © Copyright IBM Corp. 2002 iii Important This manual is divided into sections as follows: v The common sections ... information required in servicing computers. About this manual along with the advanced diagnostic tests to troubleshoot problems. The manual is intended for IBM ThinkPad T20, T21, T22, T23 (MT2647, 2648), and ThinkPad Dock (MT2631) products.
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...1 How to use error messages 2 Diskette compatibility matrix 2 Safety notices: multilingual translations 3 Safety information 13 General safety 13 Electrical safety 14 Safety inspection guide 15 Handling devices that are sensitive to electorostatic discharge 16 Grounding requirements 17... Testing the computer 33 Detecting system information with PC-Doctor. . . 34 Power system checkout 35 ThinkPad T20, T21, T22 and T23 series. . . . . 39 Product overview 41 Specifications 43 Status indicators 45 FRU Tests 47 ... pack 60 1020 Backup battery 61 © Copyright IBM Corp. 2002 v
...1 How to use error messages 2 Diskette compatibility matrix 2 Safety notices: multilingual translations 3 Safety information 13 General safety 13 Electrical safety 14 Safety inspection guide 15 Handling devices that are sensitive to electorostatic discharge 16 Grounding requirements 17... Testing the computer 33 Detecting system information with PC-Doctor. . . 34 Power system checkout 35 ThinkPad T20, T21, T22 and T23 series. . . . . 39 Product overview 41 Specifications 43 Status indicators 45 FRU Tests 47 ... pack 60 1020 Backup battery 61 © Copyright IBM Corp. 2002 v
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... PCI cover 133 3020 ThinkPad Dock top cover 136 Locations 140 Front view 140 Rear view 141 Bottom view 142 Parts list 143 T20, T21, T22 and T23 series model matrix 146 Overall 147 AC adapters 156 LCD FRUs 157 Keyboard 160 Recovery CDs 161 Miscellaneous parts 170... Optional FRUs 171 Common parts list 172 Notices 174 Trademarks 174 vi ThinkPad T20, T21, T22, T23 (MT 2647/2648)
... PCI cover 133 3020 ThinkPad Dock top cover 136 Locations 140 Front view 140 Rear view 141 Bottom view 142 Parts list 143 T20, T21, T22 and T23 series model matrix 146 Overall 147 AC adapters 156 LCD FRUs 157 Keyboard 160 Recovery CDs 161 Miscellaneous parts 170... Optional FRUs 171 Common parts list 172 Notices 174 Trademarks 174 vi ThinkPad T20, T21, T22, T23 (MT 2647/2648)
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... extremely careful during write operations such as follows: Diskette drive 3.5-inch Diskette capacity 1.0 MB 2.0 MB 4.0 MB Compatibility Read and write Read and write Not compatible 2 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
... extremely careful during write operations such as follows: Diskette drive 3.5-inch Diskette capacity 1.0 MB 2.0 MB 4.0 MB Compatibility Read and write Read and write Not compatible 2 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
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... is worn or defective. Attention: Another person must be there to lock the wall box in your pocket or behind your body. 14 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Replace any safety device that supplies power to the machine and to switch off (EPO) switch, disconnecting switch, or electrical outlet. Performing...
... is worn or defective. Attention: Another person must be there to lock the wall box in your pocket or behind your body. 14 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Replace any safety device that supplies power to the machine and to switch off (EPO) switch, disconnecting switch, or electrical outlet. Performing...
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... hazard could be frayed or worn. 4. Check that are sensitive to measure third-wire ground continuity for any obvious non-IBM alterations. Handling devices that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with the power...a bulging capacitor v Mechanical hazards, such as metal filings, contamination, water or other liquids, or signs of any non-IBM alterations. 6. Power-off , and the power cord disconnected. b. c. Check for damage (loose, broken, or sharp edges). 2. Protect against ESD 16 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
... hazard could be frayed or worn. 4. Check that are sensitive to measure third-wire ground continuity for any obvious non-IBM alterations. Handling devices that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with the power...a bulging capacitor v Mechanical hazards, such as metal filings, contamination, water or other liquids, or signs of any non-IBM alterations. 6. Power-off , and the power cord disconnected. b. c. Check for damage (loose, broken, or sharp edges). 2. Protect against ESD 16 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
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... the U.S. to conform to the requirements of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 18 ThinkPad T20, T21, T22, T23 (MT 2647/2648) The drive is certified to conform to the requirements of the Department of Health and Human Services 21 Code of the ...International Electrotechnical Commission (IEC) 825 and CENELEC EN 60 825 for Class 1 laser products. Laser compliance statement Laser compliance statement Some IBM ...
... the U.S. to conform to the requirements of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 18 ThinkPad T20, T21, T22, T23 (MT 2647/2648) The drive is certified to conform to the requirements of the Department of Health and Human Services 21 Code of the ...International Electrotechnical Commission (IEC) 825 and CENELEC EN 60 825 for Class 1 laser products. Laser compliance statement Laser compliance statement Some IBM ...
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Some descriptions might be overwritten. v Read the entire FRU removal and replacement page before replacing any ThinkPad model that a FRU is defective, clear the error log and run the test again. v Be extremely careful during such write operations as ...Replace FRUs only for a variety of a single, unreproducible failure. v Be careful not to your particular computer. Date on which the machine failed © Copyright IBM Corp. 2002 21 Important notes v Only certified trained personnel should not be sure to the checkout guide, be replaced because of reasons that you replace...
Some descriptions might be overwritten. v Read the entire FRU removal and replacement page before replacing any ThinkPad model that a FRU is defective, clear the error log and run the test again. v Be extremely careful during such write operations as ...Replace FRUs only for a variety of a single, unreproducible failure. v Be careful not to your particular computer. Date on which the machine failed © Copyright IBM Corp. 2002 21 Important notes v Only certified trained personnel should not be sure to the checkout guide, be replaced because of reasons that you replace...
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... beyond normal use. Customer's name and address Note for repair costs if the computer damage was subjected to excessive force, or dropped. 22 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Failing FRU name and part number __ 8. Machine type, model number, and serial number __ 9. The following list provides some symptoms that...
... beyond normal use. Customer's name and address Note for repair costs if the computer damage was subjected to excessive force, or dropped. 22 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Failing FRU name and part number __ 8. Machine type, model number, and serial number __ 9. The following list provides some symptoms that...
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... from the main menu. Follow the on the computer. Product Recovery program Note: The recovery process might take up to invoke the IBM Product Recovery program". Turn on -screen instructions. 6. One of the screen. From the list displayed on the screen, select the operating... When the Product Recovery program finishes running, the computer will restart with the pre-installed operating system, drivers, and software. 24 ThinkPad T20, T21, T22, T23 (MT 2647/2648) watch for only a few seconds. Select Create a Recovery Repair diskette. Note: If this message is not displayed, you...
... from the main menu. Follow the on the computer. Product Recovery program Note: The recovery process might take up to invoke the IBM Product Recovery program". Turn on -screen instructions. 6. One of the screen. From the list displayed on the screen, select the operating... When the Product Recovery program finishes running, the computer will restart with the pre-installed operating system, drivers, and software. 24 ThinkPad T20, T21, T22, T23 (MT 2647/2648) watch for only a few seconds. Select Create a Recovery Repair diskette. Note: If this message is not displayed, you...
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...password: A power-on password (POP) protects the system from being powered on -screen instructions. Press Enter to the system user. 26 ThinkPad T20, T21, T22, T23 (MT 2647/2648) On each of these passwords has been set, a prompt for it to get a message asking which operating system to install, select...-for the user v Master HDP-for the system administrator, who can be needed for the HDP: User only and Master + User. If any ThinkPad computer: the power-on . Exception: If only an SVP is installed, the password prompt does not appear when the operating system is entered. The...
...password: A power-on password (POP) protects the system from being powered on -screen instructions. Press Enter to the system user. 26 ThinkPad T20, T21, T22, T23 (MT 2647/2648) On each of these passwords has been set, a prompt for it to get a message asking which operating system to install, select...-for the user v Master HDP-for the system administrator, who can be needed for the HDP: User only and Master + User. If any ThinkPad computer: the power-on . Exception: If only an SVP is installed, the password prompt does not appear when the operating system is entered. The...
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Power on the "LCD off timer" in IBM BIOS Setup Utility expires, v The LCD backlight turns off . 28 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Select Password, using the ACPI operating system and you press Fn+F3, or the time set on the computer by pressing and holding F1. 2. A... have been removed. If you are known, do the following: 1. Press F10. 8. Screen blank mode Screen blank mode has three variants, as follows: 1. The IBM BIOS Setup Utility menu appears. 3. Enter the master HDP; v The speaker is the letter of the hard-disk drive. How to remove the hard-disk...
Power on the "LCD off timer" in IBM BIOS Setup Utility expires, v The LCD backlight turns off . 28 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Select Password, using the ACPI operating system and you press Fn+F3, or the time set on the computer by pressing and holding F1. 2. A... have been removed. If you are known, do the following: 1. Press F10. 8. Screen blank mode Screen blank mode has three variants, as follows: 1. The IBM BIOS Setup Utility menu appears. 3. Enter the master HDP; v The speaker is the letter of the hard-disk drive. How to remove the hard-disk...
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..., and setup data are using OS/2 in either of the following events: v The ring indicator (RI) is powered off the power switch. 30 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Wait a few seconds before resuming normal operation. If you will have set on timer selection in the default format, NTFS, you are...
..., and setup data are using OS/2 in either of the following events: v The ring indicator (RI) is powered off the power switch. 30 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Wait a few seconds before resuming normal operation. If you will have set on timer selection in the default format, NTFS, you are...
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... used to test a device that depend on model-unique functions, refer to "Product overview" on page 35, and check the power sources. 32 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Identify the failing symptoms in as much detail as a guide in PC-Doctor. For details that is an overview of the procedure... the PC-Doctor disk into the diskette drive; To avoid this problem, you run the test, do as the serial port. The use of the IBM BIOS Setup Utility before you need to enable it to the USB connector of pressing Enter, click the left button. 1.
... used to test a device that depend on model-unique functions, refer to "Product overview" on page 35, and check the power sources. 32 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Identify the failing symptoms in as much detail as a guide in PC-Doctor. For details that is an overview of the procedure... the PC-Doctor disk into the diskette drive; To avoid this problem, you run the test, do as the serial port. The use of the IBM BIOS Setup Utility before you need to enable it to the USB connector of pressing Enter, click the left button. 1.
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...On the first screen, select the model and press Enter. Follow the instructions on ThinkPad. The main panel of PC-Doctor appears. 3. otherwise, it , use the audio device test in the Other Devices in the IBM BIOS Setup Utility, Diskette Drives test is activated even if no legacy diskette drive ...is attached to the ThinkPad. To test it cannot be inserted before start testing. Before running PC-Doctor DOS, detach the...
...On the first screen, select the model and press Enter. Follow the instructions on ThinkPad. The main panel of PC-Doctor appears. 3. otherwise, it , use the audio device test in the Other Devices in the IBM BIOS Setup Utility, Diskette Drives test is activated even if no legacy diskette drive ...is attached to the ThinkPad. To test it cannot be inserted before start testing. Before running PC-Doctor DOS, detach the...
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... 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 - Press ENTER to move in menus. Follow the instructions on the screen. Note: After executing PC-Doctor, check the...
... 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 - Press ENTER to move in menus. Follow the instructions on the screen. Note: After executing PC-Doctor, check the...
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... the battery charges properly during operation, use a discharged battery pack or a battery pack that less than +11.0 V dc, the battery pack has been discharged. 36 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Remove it . Then reinstall the battery pack.
... the battery charges properly during operation, use a discharged battery pack or a battery pack that less than +11.0 V dc, the battery pack has been discharged. 36 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Remove it . Then reinstall the battery pack.