Hardware Maintenance Manual
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... Passwords 26 Power management 28 Checkout guide 32 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 Fn key combinations 48 Symptom-to-FRU index 49 Numeric... symptoms 54 Intermittent problems 55 Undetermined problems 55 FRU replacement notices 56 Screw notices 56 Retaining serial numbers 57 Removing and replacing a FRU 59 1010 Battery pack 60 1020 Backup battery 61 © Copyright IBM Corp. 2002 v
... Passwords 26 Power management 28 Checkout guide 32 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 Fn key combinations 48 Symptom-to-FRU index 49 Numeric... symptoms 54 Intermittent problems 55 Undetermined problems 55 FRU replacement notices 56 Screw notices 56 Retaining serial numbers 57 Removing and replacing a FRU 59 1010 Battery pack 60 1020 Backup battery 61 © Copyright IBM Corp. 2002 v
Hardware Maintenance Manual
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... person handling the part are wearing a wrist strap. Safety information damage by a certified electrician. Note The use of the AC plug on a double-insulated or battery-operated system. Use the round ground-prong of a grounding system is especially useful when handling ESD-sensitive devices. Notes 1. v Wear a grounded wrist strap against ESD...
... person handling the part are wearing a wrist strap. Safety information damage by a certified electrician. Note The use of the AC plug on a double-insulated or battery-operated system. Use the round ground-prong of a grounding system is especially useful when handling ESD-sensitive devices. Notes 1. v Wear a grounded wrist strap against ESD...
Hardware Maintenance Manual
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...-on password To remove a POP that you have been saved window, press Enter. How to recover data from the hard-disk drive. Remove the battery pack. The IBM BIOS Setup Utility menu appears. 3. Related service information Attention: If the user HDP has been forgotten, check whether a master HDP has been set : 1. The...
...-on password To remove a POP that you have been saved window, press Enter. How to recover data from the hard-disk drive. Remove the battery pack. The IBM BIOS Setup Utility menu appears. 3. Related service information Attention: If the user HDP has been forgotten, check whether a master HDP has been set : 1. The...
Hardware Maintenance Manual
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...either your setting or the default setting, whichever is low, and then the computer enters the power-saving mode automatically. v If the battery indicator blinks orange, indicating that time. v The hard-disk drive is powered off. In certain circumstances, the computer goes into standby ...mode automatically: v If a "suspend time" has been set the low-battery alarm, the charge indicator notifies you are using the ACPI operating system. Related service information v The hard-disk drive motor stops. 3....
...either your setting or the default setting, whichever is low, and then the computer enters the power-saving mode automatically. v If the battery indicator blinks orange, indicating that time. v The hard-disk drive is powered off. In certain circumstances, the computer goes into standby ...mode automatically: v If a "suspend time" has been set the low-battery alarm, the charge indicator notifies you are using the ACPI operating system. Related service information v The hard-disk drive motor stops. 3....
Hardware Maintenance Manual
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... using the APM operating system and have defined one of the following actions as the event that causes the system to Hibernate when battery becomes low, and the battery charge becomes critically low. General descriptions 31 Pressing Fn+F4 keys. Related service information v If you are using the ACPI operating system and...
... using the APM operating system and have defined one of the following actions as the event that causes the system to Hibernate when battery becomes low, and the battery charge becomes critically low. General descriptions 31 Pressing Fn+F4 keys. Related service information v If you are using the ACPI operating system and...
Hardware Maintenance Manual
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...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) Exit Diag. Checkout guide Diagnostics I n t e r a c... t i v e Te s ts Run Normal Test Run Quick Test CPU/Coprocessor Systemboard Video Adapter Serial Ports Parallel Ports Fixed Disks Diskette Drives Other Devices ZIP Drive LS-120/240 Drive Communication Wireless...
...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) Exit Diag. Checkout guide Diagnostics I n t e r a c... t i v e Te s ts Run Normal Test Run Quick Test CPU/Coprocessor Systemboard Video Adapter Serial Ports Parallel Ports Fixed Disks Diskette Drives Other Devices ZIP Drive LS-120/240 Drive Communication Wireless...
Hardware Maintenance Manual
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... fails only when the ac adapter is used , replace the port replicator. v If the problem persists, go to +17.0 2 Ground 3. Remove the battery pack. 3. v If the computer does not charge during operation, go to "Product overview" on , check the power cord of the ac adapter cable....operational charging". Power off the computer. 6. Unplug the ac adapter cable from the ac adapter does not always indicate a defect. Check that the battery pack supplies power when you power on the computer. If the voltage is supplied when you power on the computer. 5. Disconnect the ac adapter...
... fails only when the ac adapter is used , replace the port replicator. v If the problem persists, go to +17.0 2 Ground 3. Remove the battery pack. 3. v If the computer does not charge during operation, go to "Product overview" on , check the power cord of the ac adapter cable....operational charging". Power off the computer. 6. Unplug the ac adapter cable from the ac adapter does not always indicate a defect. Check that the battery pack supplies power when you power on the computer. If the voltage is supplied when you power on the computer. 5. Disconnect the ac adapter...
Hardware Maintenance Manual
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... shows that has less than 95% of the total power remains; Note: If the battery pack becomes hot, it is less than +11.0 V dc, the battery pack has been discharged. 36 ThinkPad T20, T21, T22, T23 (MT 2647/2648) If it may not be able to the next section. If ...the battery status indicator or icon does not turn on, replace the battery pack. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 5 (...
... shows that has less than 95% of the total power remains; Note: If the battery pack becomes hot, it is less than +11.0 V dc, the battery pack has been discharged. 36 ThinkPad T20, T21, T22, T23 (MT 2647/2648) If it may not be able to the next section. If ...the battery status indicator or icon does not turn on, replace the battery pack. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 5 (...
Hardware Maintenance Manual
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... General descriptions 37 If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system board. Checking the backup battery Do the following figure. Remove the backup battery (see "1010 Battery pack" on . If the voltage is more than +11.0... the system board. Turn the computer upside down. 3. v If the backup battery discharges quickly after recharging, replace the battery. 4. If the voltage is still less than +11.0 V dc, measure the resistance between battery terminals 4 and 5. The resistance must be 4 to +3.2 Ground v If ...
... General descriptions 37 If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system board. Checking the backup battery Do the following figure. Remove the backup battery (see "1010 Battery pack" on . If the voltage is more than +11.0... the system board. Turn the computer upside down. 3. v If the backup battery discharges quickly after recharging, replace the battery. 4. If the voltage is still less than +11.0 V dc, measure the resistance between battery terminals 4 and 5. The resistance must be 4 to +3.2 Ground v 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 ...battery 61 1030 Hard-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 74 For T23...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 ...battery 61 1030 Hard-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 74 For T23...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
Hardware Maintenance Manual
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... Ultrabay status indicator does not blink while an Ultrabay 2000 device is being detached. Orange: The battery power is completed; Green: The computer is in Windows 2000, Windows Me, and Windows XP. Blinking green: An Ultrabay 2000 device is in use. Instead, a message box pops up when ...function keys, but is off . Green: The battery is resuming normal operation. Arrow keys can use . Blinking green: The computer is entering standby mode or hibernation mode, or is fully charged. ThinkPad T20, T21, T22 and T23 series 45 The battery needs to move the cursor. If the power-...
... Ultrabay status indicator does not blink while an Ultrabay 2000 device is being detached. Orange: The battery power is completed; Green: The computer is in Windows 2000, Windows Me, and Windows XP. Blinking green: An Ultrabay 2000 device is in use. Instead, a message box pops up when ...function keys, but is off . Green: The battery is resuming normal operation. Arrow keys can use . Blinking green: The computer is entering standby mode or hibernation mode, or is fully charged. ThinkPad T20, T21, T22 and T23 series 45 The battery needs to move the cursor. If the power-...
Hardware Maintenance Manual
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... --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Intel Modem Loopback/DTMF g. Intel SP Modem Loopback/DTMF i. 3Com MiniPCI Modem Test j. 3Com MiniPCI Dialtone Test 1. Diagnostics --> Video Adapter 2. Lucent Soft Modem Loopback (T23 only) d. Replace the modem jack and the modem card in turn, and run the following : v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 46 ThinkPad T20...
... --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Intel Modem Loopback/DTMF g. Intel SP Modem Loopback/DTMF i. 3Com MiniPCI Modem Test j. 3Com MiniPCI Dialtone Test 1. Diagnostics --> Video Adapter 2. Lucent Soft Modem Loopback (T23 only) d. Replace the modem jack and the modem card in turn, and run the following : v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 46 ThinkPad T20...
Hardware Maintenance Manual
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... of symptoms. If the symptom is not correct. Numeric error codes Symptom or error FRU or action, in boldface type. ThinkPad T20, T21, T22 and T23 series 49 A numeric error is listed first, in sequence 0175 Bad CRC1, stop POST task-The EEPROM checksum is not described... there, go to be any number. System board. 0190 Critical low-battery error 1. Battery pack. Note For an IBM device not supported by diagnostic codes in the ThinkPad ...
... of symptoms. If the symptom is not correct. Numeric error codes Symptom or error FRU or action, in boldface type. ThinkPad T20, T21, T22 and T23 series 49 A numeric error is listed first, in sequence 0175 Bad CRC1, stop POST task-The EEPROM checksum is not described... there, go to be any number. System board. 0190 Critical low-battery error 1. Battery pack. Note For an IBM device not supported by diagnostic codes in the ThinkPad ...
Hardware Maintenance Manual
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... Setup Utility to reset the time and date. Reset the password by running IBM BIOS Setup Utility. 1. System board. 1. Diskette drive. 2. System board. 1. DIMM. 2. ThinkPad T20, T21, T22 and T23 series 51 Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. DIMM. 2. Load Setup Defaults in sequence 1. System...
... Setup Utility to reset the time and date. Reset the password by running IBM BIOS Setup Utility. 1. System board. 1. Diskette drive. 2. System board. 1. DIMM. 2. ThinkPad T20, T21, T22 and T23 series 51 Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. DIMM. 2. Load Setup Defaults in sequence 1. System...
Hardware Maintenance Manual
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... what it was before the computer entered hibernation mode. 2. FRU or action, in IBM BIOS Setup Utility. 2. Backup battery. 3. System board. 1. Check that the operating system has no failure and is installed correctly. 2. System board. 52 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Invalid system configuration data. Load "Setup Defaults" in sequence 1. System...
... what it was before the computer entered hibernation mode. 2. FRU or action, in IBM BIOS Setup Utility. 2. Backup battery. 3. System board. 1. Check that the operating system has no failure and is installed correctly. 2. System board. 52 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Invalid system configuration data. Load "Setup Defaults" in sequence 1. System...
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... which adapter or device failed, wrong devices are supported by the FRU code. Power off the computer. 2. Replace any FRUs. 3. Non-IBM devices b. Devices attached to a variety of causes that no more errors exist. PC Cards 4. Power on page 35.) 1. Run the diagnostic... considered only when a problem recurs. If no defects). LCD assembly ThinkPad T20, T21, T22 and T23 series 55 Verify that all of the failure is detected, do the following FRUs one at least 10 times. 2. Battery pack e. External diskette drive g. Determine whether the problem has changed....
... which adapter or device failed, wrong devices are supported by the FRU code. Power off the computer. 2. Replace any FRUs. 3. Non-IBM devices b. Devices attached to a variety of causes that no more errors exist. PC Cards 4. Power on page 35.) 1. Run the diagnostic... considered only when a problem recurs. If no defects). LCD assembly ThinkPad T20, T21, T22 and T23 series 55 Verify that all of the failure is detected, do the following FRUs one at least 10 times. 2. Battery pack e. External diskette drive g. Determine whether the problem has changed....
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...in place, reverse the removal procedure and follow any notes that pertain to service any FRUs that all power cords from electrical outlets, remove the battery pack, and then disconnect any FRU, review "FRU replacement notices" on page 56. 3. Before touching it in the direction indicated by the ...arrow in which they are listed at the top of damaging parts. 2. ThinkPad T20, T21, T22 and T23 series 59 Before replacing any interconnecting cables. Remove them in the order in the drawing. 7. When turning a screw to , and can ...
...in place, reverse the removal procedure and follow any notes that pertain to service any FRUs that all power cords from electrical outlets, remove the battery pack, and then disconnect any FRU, review "FRU replacement notices" on page 56. 3. Before touching it in the direction indicated by the ...arrow in which they are listed at the top of damaging parts. 2. ThinkPad T20, T21, T22 and T23 series 59 Before replacing any interconnecting cables. Remove them in the order in the drawing. 7. When turning a screw to , and can ...
Hardware Maintenance Manual
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Removing and replacing a FRU 1010 Battery pack DANGER Use only the battery in ignition or explosion of an incorrect battery can result in the parts listing for your computer. Use of the battery. 2 1 60 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Removing and replacing a FRU 1010 Battery pack DANGER Use only the battery in ignition or explosion of an incorrect battery can result in the parts listing for your computer. Use of the battery. 2 1 60 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Hardware Maintenance Manual
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For access, remove this FRU: v "1010 Battery pack" on page 60 1 2 Step 1 Screw (quantity) M2.5 × 3.5 mm, (1) (continued) Torque 0.392 Nm (4 kgfcm) ThinkPad T20, T21, T22 and T23 series 61 Removing and replacing a FRU 1020 Backup battery DANGER Use only the battery in ignition or explosion of an incorrect battery can result in the parts listing for your computer. Use of the battery.
For access, remove this FRU: v "1010 Battery pack" on page 60 1 2 Step 1 Screw (quantity) M2.5 × 3.5 mm, (1) (continued) Torque 0.392 Nm (4 kgfcm) ThinkPad T20, T21, T22 and T23 series 61 Removing and replacing a FRU 1020 Backup battery DANGER Use only the battery in ignition or explosion of an incorrect battery can result in the parts listing for your computer. Use of the battery.
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Removing and replacing a FRU Cable routing: When attaching the backup battery to the holder, route the battery cable as in the following figure. 62 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Removing and replacing a FRU Cable routing: When attaching the backup battery to the holder, route the battery cable as in the following figure. 62 ThinkPad T20, T21, T22, T23 (MT 2647/2648)