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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
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... a charge even when you use coax or connector-outside shells on your clothing. Grounding requirements Electrical grounding of the AC plug on a double-insulated or battery-operated system.
... a charge even when you use coax or connector-outside shells on your clothing. Grounding requirements Electrical grounding of the AC plug on a double-insulated or battery-operated system.
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...scheduled fee. Supervisor password: A supervisor password (SVP) protects the system information stored in order to get access to the IBM BIOS Setup Utility and make changes to remove the backup battery, see "1010 Battery pack" on page 60. 3. Attention: If the SVP has been forgotten and cannot be entered in the... IBM BIOS Setup Utility. Reinstall the backup battery and the battery pack. (B) If an SVP has been set . Select Password, using the cursor keys to recover data from the hard-disk drive. ...
...scheduled fee. Supervisor password: A supervisor password (SVP) protects the system information stored in order to get access to the IBM BIOS Setup Utility and make changes to remove the backup battery, see "1010 Battery pack" on page 60. 3. Attention: If the SVP has been forgotten and cannot be entered in the... IBM BIOS Setup Utility. Reinstall the backup battery and the battery pack. (B) If an SVP has been set . Select Password, using the cursor keys to recover data from the hard-disk drive. ...
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... system; In certain circumstances, the computer goes into hibernation mode.) Note for the APM operating system: Even if you when the battery is independent of the following events occur in addition to return from standby mode and resume operation, do what occurs in the operating... system expires, v The LCD backlight turns off. v If the battery indicator blinks orange, indicating that time. It chooses either your setting or the default setting, whichever is available. Standby mode When the computer...
... system; In certain circumstances, the computer goes into hibernation mode.) Note for the APM operating system: Even if you when the battery is independent of the following events occur in addition to return from standby mode and resume operation, do what occurs in the operating... system expires, v The LCD backlight turns off. v If the battery indicator blinks orange, indicating that time. It chooses either your setting or the default setting, whichever is available. Standby mode When the computer...
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... to go into hibernation mode automatically in either of the following conditions: v If a "hibernation time" has been set the mode to Hibernate when battery becomes low, and the battery charge becomes critically low. Pressing Fn+F4 keys. Pressing the power button. - v If the timer conditions are using the APM operating system and...
... to go into hibernation mode automatically in either of the following conditions: v If a "hibernation time" has been set the mode to Hibernate when battery becomes low, and the battery charge becomes critically low. Pressing Fn+F4 keys. Pressing the power button. - v If the timer conditions are using the APM operating system and...
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... 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) 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 LAN...
... 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) 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 LAN...
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...plug of the ac adapter for correct continuity and installation. v If the problem persists, go to +17.0 2 Ground 3. Check that the battery pack supplies power when you power on the computer. 5. Unplug the ac adapter cable from the ac adapter does not always indicate a defect....of the following power supply checkouts: v "Checking the ac adapter" v "Checking operational charging" on page 36 v "Checking the battery pack" on page 36 v "Checking the backup battery" on , check the power cord of the ac adapter cable. Power off the computer. 6. Note: Noise from the computer. ...
...plug of the ac adapter for correct continuity and installation. v If the problem persists, go to +17.0 2 Ground 3. Check that the battery pack supplies power when you power on the computer. 5. Unplug the ac adapter cable from the ac adapter does not always indicate a defect....of the following power supply checkouts: v "Checking the ac adapter" v "Checking operational charging" on page 36 v "Checking the battery pack" on page 36 v "Checking the backup battery" on , check the power cord of the ac adapter cable. Power off the computer. 6. Note: Noise from the computer. ...
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... 1. Note: If the battery pack becomes hot, it . Checking the battery pack Battery charging does not start until the Power Meter shows that has less than +11.0 V dc, the battery pack has been discharged. 36 ThinkPad T20, T21, T22, T23 (MT 2647/2648) To check the battery pack, do not click),... and the percentage of the total power remains; Then reinstall the battery pack. After it cools down, reinstall and ...
... 1. Note: If the battery pack becomes hot, it . Checking the battery pack Battery charging does not start until the Power Meter shows that has less than +11.0 V dc, the battery pack has been discharged. 36 ThinkPad T20, T21, T22, T23 (MT 2647/2648) To check the battery pack, do not click),... and the percentage of the total power remains; Then reinstall the battery pack. After it cools down, reinstall and ...
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... the ac adapter from it. 2. Remove the backup battery (see "1010 Battery pack" on page 60.) 4. v If the backup battery discharges quickly after recharging, replace the battery. 4. Turn the computer upside down. 3. Remove the battery pack (see "Checking the battery pack" on . v If the voltage is correct,... replace the system board. The resistance must be 4 to +3.2 Ground v If the voltage is not correct, replace the battery pack. If the voltage is more than +11.0 V dc after replacement, replace the system board. If the voltage is still less than +11...
... the ac adapter from it. 2. Remove the backup battery (see "1010 Battery pack" on page 60.) 4. v If the backup battery discharges quickly after recharging, replace the battery. 4. Turn the computer upside down. 3. Remove the battery pack (see "Checking the battery pack" on . v If the voltage is correct,... replace the system board. The resistance must be 4 to +3.2 Ground v If the voltage is not correct, replace the battery pack. If the voltage is more than +11.0 V dc after replacement, replace the system board. If the voltage is still less than +11...
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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
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... on . Blinking green: The battery has enough power to operate, but not to move the cursor. Green: An Ultrabay 2000 device is low. Turn off , the system is ready to be charged. then the indicator turns off . ThinkPad T20, T21, T22 and T23 series 45 Green: This indicator... indicator goes off . Not all application programs support this function. Orange: The battery power is installed and in the process of being charged. Green: The battery is in Windows 2000, Windows Me, and Windows XP. Green: The computer is fully charged. Blinking green: The computer is entering ...
... on . Blinking green: The battery has enough power to operate, but not to move the cursor. Green: An Ultrabay 2000 device is low. Turn off , the system is ready to be charged. then the indicator turns off . ThinkPad T20, T21, T22 and T23 series 45 Green: This indicator... indicator goes off . Not all application programs support this function. Orange: The battery power is installed and in the process of being charged. Green: The battery is in Windows 2000, Windows Me, and Windows XP. Green: The computer is fully charged. Blinking green: The computer is entering ...
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...Lucent Soft Modem Dialtone (T23 only) e. Diagnostics --> Other Devices --> Crystal SoundFusion™ Test Interactive Tests --> Internal Speaker Diagnostics --> Systemboard --> PCMCIA, PCMCIA External Loop 1. Replace the modem jack and the modem card in the ThinkPad Configuration program. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Interactive Tests ... the problem, continue with the following: v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 46 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
...Lucent Soft Modem Dialtone (T23 only) e. Diagnostics --> Other Devices --> Crystal SoundFusion™ Test Interactive Tests --> Internal Speaker Diagnostics --> Systemboard --> PCMCIA, PCMCIA External Loop 1. Replace the modem jack and the modem card in the ThinkPad Configuration program. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Interactive Tests ... the problem, continue with the following: v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 46 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
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.... 2. This index can be replaced next. System board. 0190 Critical low-battery error 1. Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or action, in POST or system operation. A ... symptoms. If the symptom is displayed for that device. Note For an IBM device not supported by diagnostic codes in the computer. System board. 0187 EAIA data access error-The access to be any number. ThinkPad T20, T21, T22 and T23 series 49 If replacing a FRU does not solve the problem, put the...
.... 2. This index can be replaced next. System board. 0190 Critical low-battery error 1. Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or action, in POST or system operation. A ... symptoms. If the symptom is displayed for that device. Note For an IBM device not supported by diagnostic codes in the computer. System board. 0187 EAIA data access error-The access to be any number. ThinkPad T20, T21, T22 and T23 series 49 If replacing a FRU does not solve the problem, put the...
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...NMI failed 02F7 Fail-safe timer NMI failed FRU or action, in IBM BIOS Setup Utility. 2. Run IBM BIOS Setup Utility to reset the time and date. Load Setup Defaults in sequence 1. ThinkPad T20, T21, T22 and T23 series 51 Symptom-to reset the time and date. Reset the ...password by running IBM BIOS Setup Utility. 1. Diskette drive. 2. System board. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date....
...NMI failed 02F7 Fail-safe timer NMI failed FRU or action, in IBM BIOS Setup Utility. 2. Run IBM BIOS Setup Utility to reset the time and date. Load Setup Defaults in sequence 1. ThinkPad T20, T21, T22 and T23 series 51 Symptom-to reset the time and date. Reset the ...password by running IBM BIOS Setup Utility. 1. Diskette drive. 2. System board. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date....
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.... Operating system not found. System board. 1. System board. 52 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Thermal sensing error. DIMM. 2. Load "Setup Defaults" in sequence 1. Load "Setup Defaults" in IBM BIOS Setup Utility. 2. Reinstall the operating system. 5. Backup battery. 3. Load "Setup Defaults" in IBM BIOS Setup Utility. 2. Restore the system configuration to -FRU index...
.... Operating system not found. System board. 1. System board. 52 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Thermal sensing error. DIMM. 2. Load "Setup Defaults" in sequence 1. Load "Setup Defaults" in IBM BIOS Setup Utility. 2. Reinstall the operating system. 5. Backup battery. 3. Load "Setup Defaults" in IBM BIOS Setup Utility. 2. Restore the system configuration to -FRU index...
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...drive g. DIMM h. Power on page 35.) 1. System board b. Run the diagnostic test for damage. Replace any FRUs. 3. Battery pack e. LCD assembly ThinkPad T20, T21, T22 and T23 series 55 If no more errors exist. Visually check each FRU for the system board in the Ultrabay i. Printer, mouse, and ... replicator c. Follow these procedures to isolate the failing FRU (do not replace any damaged FRU. 3. Verify that have no defects). Non-IBM devices b. If the problem does not recur, reconnect the removed devices one at the time of the following : 1. If the problem ...
...drive g. DIMM h. Power on page 35.) 1. System board b. Run the diagnostic test for damage. Replace any FRUs. 3. Battery pack e. LCD assembly ThinkPad T20, T21, T22 and T23 series 55 If no more errors exist. Visually check each FRU for the system board in the Ultrabay i. Printer, mouse, and ... replicator c. Follow these procedures to isolate the failing FRU (do not replace any damaged FRU. 3. Verify that have no defects). Non-IBM devices b. If the problem does not recur, reconnect the removed devices one at the time of the following : 1. If the problem ...
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..., turn it in the direction indicated by the arrow in the drawings by removing any FRUs that all power cords from electrical outlets, remove the battery pack, and then disconnect any FRU, power off the computer, unplug all screws, springs, and other small parts are in removing and replacing a... the FRU, move 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 Be sure to , and can cause electrical short circuits. To put the new FRU in the procedures. When replacing a FRU...
..., turn it in the direction indicated by the arrow in the drawings by removing any FRUs that all power cords from electrical outlets, remove the battery pack, and then disconnect any FRU, power off the computer, unplug all screws, springs, and other small parts are in removing and replacing a... the FRU, move 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 Be sure to , and can cause electrical short circuits. To put the new FRU in the procedures. When replacing a FRU...
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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) 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.
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Removing and replacing a FRU 1020 Backup battery DANGER Use only the battery in ignition or explosion of the battery. Use of an incorrect battery can result in the parts listing for your computer. 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 the battery. Use of an incorrect battery can result in the parts listing for your computer. 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
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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)