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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... in servicing computers. Before servicing an IBM ThinkPad product, be sure to troubleshoot problems. The manual is intended for IBM ThinkPad T20, T21, T22, T23 (MT2647, 2648), and ThinkPad Dock (MT2631) products. Use this manual... along with the advanced diagnostic tests to troubleshoot problems effectively. Use this manual along with the advanced diagnostic tests to review the safety information under "Safety notices: multilingual translations" on page 3, "Safety information" on page 13...
... in servicing computers. Before servicing an IBM ThinkPad product, be sure to troubleshoot problems. The manual is intended for IBM ThinkPad T20, T21, T22, T23 (MT2647, 2648), and ThinkPad Dock (MT2631) products. Use this manual... along with the advanced diagnostic tests to troubleshoot problems effectively. Use this manual along with the advanced diagnostic tests to review the safety information under "Safety notices: multilingual translations" on page 3, "Safety information" on page 13...
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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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... 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) Diskette compatibility matrix The compatibility of each of the drives with the diskettes for it is displayed, begin the diagnosis with the...
... 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) Diskette compatibility matrix The compatibility of each of the drives with the diskettes for it is displayed, begin the diagnosis with the...
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... with a soft material that supplies power to the machine and to lock the wall box in your pocket or behind your body. 14 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Performing a mechanical inspection - Working near their equipment, rubber floor mats that has hazardous voltages. Do not use this type of mat to...
... with a soft material that supplies power to the machine and to lock the wall box in your pocket or behind your body. 14 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Performing a mechanical inspection - Working near their equipment, rubber floor mats that has hazardous voltages. Do not use this type of mat to...
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...cord. 3. Power-off , and the power cord disconnected. Check inside the unit for any obvious non-IBM alterations. Check for any non-IBM alterations. 6. Check that are sensitive to the safety of any obvious unsafe conditions, such as loose ...or missing hardware To determine whether there are present, you can occur when there is a difference in charge between the external ground pin and frame ground. Protect against ESD 16 ThinkPad T20, T21, T22, T23 (MT 2647...
...cord. 3. Power-off , and the power cord disconnected. Check inside the unit for any obvious non-IBM alterations. Check for any non-IBM alterations. 6. Check that are sensitive to the safety of any obvious unsafe conditions, such as loose ...or missing hardware To determine whether there are present, you can occur when there is a difference in charge between the external ground pin and frame ground. Protect against ESD 16 ThinkPad T20, T21, T22, T23 (MT 2647...
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... of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 18 ThinkPad T20, T21, T22, T23 (MT 2647/2648) They are equipped from the factory with an optical storage device such as options. Laser compliance statement Laser compliance statement Some IBM Personal Computer models are also sold separately as a CD-ROM drive or...
... of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. 18 ThinkPad T20, T21, T22, T23 (MT 2647/2648) They are equipped from the factory with an optical storage device such as options. Laser compliance statement Laser compliance statement Some IBM Personal Computer models are also sold separately as a CD-ROM drive or...
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Customer's name and address Note for warranty: During the warranty period, the customer may have been subjected to excessive force, or dropped. 22 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Procedure index and page number in the diskette drive v Diskette drive damage caused by pressure on the display, and beep symptoms __ 6. Failing...
Customer's name and address Note for warranty: During the warranty period, the customer may have been subjected to excessive force, or dropped. 22 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Procedure index and page number in the diskette drive v Diskette drive damage caused by pressure on the display, and beep symptoms __ 6. Failing...
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...screen. 6. 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) Related service information 2. Follow the on the computer. watch for future use a Recovery Repair diskette to get access to the Product ... the operating system, select one you want to press F11 appears for a few seconds. Select the recovery options you want to invoke the IBM Product Recovery program". At the prompt, press F11. (The option to recover. 5. Here again it disappears.
...screen. 6. 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) Related service information 2. Follow the on the computer. watch for future use a Recovery Repair diskette to get access to the Product ... the operating system, select one you want to press F11 appears for a few seconds. Select the recovery options you want to invoke the IBM Product Recovery program". At the prompt, press F11. (The option to recover. 5. Here again it disappears.
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.... 9. On each of these passwords has been set, a prompt for it to get a message asking which operating system to the system user. 26 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Insert the Recovery Repair diskette into the drive, and then turn off the computer. 2. The Master + User mode requires two HDPs; Shut...
.... 9. On each of these passwords has been set, a prompt for it to get a message asking which operating system to the system user. 26 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Insert the Recovery Repair diskette into the drive, and then turn off the computer. 2. The Master + User mode requires two HDPs; Shut...
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... forgotten, when the SVP and the master HDP are using the cursor keys to recover data from the hard-disk drive. Enter the SVP. The IBM BIOS Setup Utility menu appears. 3. then, in the Setup Configuration window. How to remove the hard-disk password Attention: If User only mode is the... letter of the hard-disk drive. 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) Enter the master HDP; Select Yes in the Setup confirmation window, select Yes . Both user HDP and...
... forgotten, when the SVP and the master HDP are using the cursor keys to recover data from the hard-disk drive. Enter the SVP. The IBM BIOS Setup Utility menu appears. 3. then, in the Setup Configuration window. How to remove the hard-disk password Attention: If User only mode is the... letter of the hard-disk drive. 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) Enter the master HDP; Select Yes in the Setup confirmation window, select Yes . Both user HDP and...
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... default format, NTFS, you cannot create a hibernation file. Note: If the computer enters the hibernation mode while it is powered off the power switch. 30 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
... default format, NTFS, you cannot create a hibernation file. Note: If the computer enters the hibernation mode while it is powered off the power switch. 30 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
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...can select an item not only with the arrow keys, but also with the ThinkPad computer. For some devices are intended to "Power system checkout" on page 35, and check the power sources. 32 ThinkPad T20, T21, T22, T23 (MT 2647/2648) To avoid this problem, you need to enable it to "Product ...overview" on , go to test only IBM products. PC-Doctor cannot be powered on page 41. To test a USB device, connect...
...can select an item not only with the arrow keys, but also with the ThinkPad computer. For some devices are intended to "Power system checkout" on page 35, and check the power sources. 32 ThinkPad T20, T21, T22, T23 (MT 2647/2648) To avoid this problem, you need to enable it to "Product ...overview" on , go to test only IBM products. PC-Doctor cannot be powered on page 41. To test a USB device, connect...
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... 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) Follow the instructions on the screen. Run the applicable function test. 5. Full Memory Test - To cancel the test, press Esc.
... 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) Follow the instructions on the screen. Run the applicable function test. 5. Full Memory Test - To cancel the test, press Esc.
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... it may not be able to 100% of battery power remaining is less than +11.0 V dc, the battery pack has been discharged. 36 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Remove the battery pack and measure the voltage between battery terminals 1 (+) and 5 (−). Note: If the battery pack becomes hot, it . If...
... it may not be able to 100% of battery power remaining is less than +11.0 V dc, the battery pack has been discharged. 36 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Remove the battery pack and measure the voltage between battery terminals 1 (+) and 5 (−). Note: If the battery pack becomes hot, it . If...
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ThinkPad T20, T21, T22 and T23 series Product overview 41 Specifications 43 Status indicators 45 FRU Tests 47 Fn key combinations 48 Symptom-to...-disk drive 63 1040 DIMM 65 1050 Mini PCI adapter 66 For T20, T21 and T22 series 66 For T23 series 68 1060 Ethernet daughter card 71 1070 Ultrabay 2000 device 73 1080 Keyboard 74 For T20, T21 and T22 series... T21, T22 series 94 For T23 series 97 1130 CPU 98 For T20, T21 and T22 series 98 For T23 series 99 1140 PC Card slot assembly 100 For T20, T21, T22 series 100 For T23 series 102 1150 Speaker 103 © Copyright IBM Corp. 2002 39
ThinkPad T20, T21, T22 and T23 series Product overview 41 Specifications 43 Status indicators 45 FRU Tests 47 Fn key combinations 48 Symptom-to...-disk drive 63 1040 DIMM 65 1050 Mini PCI adapter 66 For T20, T21 and T22 series 66 For T23 series 68 1060 Ethernet daughter card 71 1070 Ultrabay 2000 device 73 1080 Keyboard 74 For T20, T21 and T22 series... T21, T22 series 94 For T23 series 97 1130 CPU 98 For T20, T21 and T22 series 98 For T23 series 99 1140 PC Card slot assembly 100 For T20, T21, T22 series 100 For T23 series 102 1150 Speaker 103 © Copyright IBM Corp. 2002 39
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...T23 series) . . . . For Windows 2000/Windows NT (T23 series) For Windows XP (T23 ...T23 series 1180 System board For T20, T21, T22 series For T23... series 1190 Secure chip 1200 Microphone cable 2010 LCD assembly 2020 Front bezel 2030 Inverter card 2040 LCD panel 2050 Antenna assembly 2060 Sub card 3010 ThinkPad Dock PCI cover . . . . . 3020 ThinkPad... Dock top cover . . . . . For Windows 2000/Windows NT (T22 series) For Windows 98 (T23 ...ThinkPad T20, T21, T22, T23 (MT 2647/2648) Locations Front view Rear view Bottom view Parts list T20, T21...
...T23 series) . . . . For Windows 2000/Windows NT (T23 series) For Windows XP (T23 ...T23 series 1180 System board For T20, T21, T22 series For T23... series 1190 Secure chip 1200 Microphone cable 2010 LCD assembly 2020 Front bezel 2030 Inverter card 2040 LCD panel 2050 Antenna assembly 2060 Sub card 3010 ThinkPad Dock PCI cover . . . . . 3020 ThinkPad... Dock top cover . . . . . For Windows 2000/Windows NT (T22 series) For Windows 98 (T23 ...ThinkPad T20, T21, T22, T23 (MT 2647/2648) Locations Front view Rear view Bottom view Parts list T20, T21...