Hardware Maintenance Manual
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... system 23 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... 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
... system 23 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... 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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... against your skin to any frame ground, ground braid, or green-wire ground. - Attach the ESD ground clip to eliminate static on a double-insulated or battery-operated system. v Select a grounding system, such as fully effective.
... against your skin to any frame ground, ground braid, or green-wire ground. - Attach the ESD ground clip to eliminate static on a double-insulated or battery-operated system. v Select a grounding system, such as fully effective.
Hardware Maintenance Manual
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... been set and is known by pressing and holding F1. 2. For how to recover data from the hard-disk drive. The IBM BIOS Setup Utility menu appears. 3. Remove the battery pack. Turn on the computer by the servicer: 1. In the Changes have forgotten, do the following: (A) If no service ...page 61. 4. The SVP must be made available to the servicer, there is available, IBM does not provide any services to reset either the user or the master HDP, or to remove the backup battery, see "1010 Battery pack" on page 60. 3. Turn off the computer. 2. At the Enter Current Password...
... been set and is known by pressing and holding F1. 2. For how to recover data from the hard-disk drive. The IBM BIOS Setup Utility menu appears. 3. Remove the battery pack. Turn on the computer by the servicer: 1. In the Changes have forgotten, do the following: (A) If no service ...page 61. 4. The SVP must be made available to the servicer, there is available, IBM does not provide any services to reset either the user or the master HDP, or to remove the backup battery, see "1010 Battery pack" on page 60. 3. Turn off the computer. 2. At the Enter Current Password...
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...cause the computer to what you entered standby mode by closing the LCD cover.) General descriptions 29 If the time set the low-battery alarm, the computer may not do what occurs in the operating system expires, v The LCD backlight turns off. v The CPU stops. v ... press any operation with the keyboard, the TrackPoint, the hard disk, the parallel connector, or the diskette drive within that the battery power is low. (Alternatively, if Hibernate when battery becomes low has been selected in the "Power Management Properties" window, the computer goes into standby mode automatically: v If a...
...cause the computer to what you entered standby mode by closing the LCD cover.) General descriptions 29 If the time set the low-battery alarm, the computer may not do what occurs in the operating system expires, v The LCD backlight turns off. v The CPU stops. v ... press any operation with the keyboard, the TrackPoint, the hard disk, the parallel connector, or the diskette drive within that the battery power is low. (Alternatively, if Hibernate when battery becomes low has been selected in the "Power Management Properties" window, the computer goes into standby mode automatically: v If a...
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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. Closing the lid. - Also, the computer goes into hibernation mode, perform that action. - General descriptions 31 Related service information...
... 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. Closing the lid. - Also, the computer goes into hibernation mode, perform that action. - General descriptions 31 Related service information...
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... 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) All Rights Reserved. If there is a problem, PC-Doctor shows...
... 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) All Rights Reserved. If there is a problem, PC-Doctor shows...
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...computer. 6. Connect the ac adapter. 4. Power off the computer. 2. Disconnect the ac adapter and install the charged battery pack. 7. If you power on page 41. Remove the battery pack. 3. v If the computer does not charge during operation, go to "Product overview" on the computer. ... 1 +15.5 to "Checking operational charging". Unplug the ac adapter cable from the ac adapter does not always indicate a defect. Check that the battery pack supplies power when you suspect a power problem, see the appropriate one of the following power supply checkouts: v "Checking the ac adapter" v ...
...computer. 6. Connect the ac adapter. 4. Power off the computer. 2. Disconnect the ac adapter and install the charged battery pack. 7. If you power on page 41. Remove the battery pack. 3. v If the computer does not charge during operation, go to "Product overview" on the computer. ... 1 +15.5 to "Checking operational charging". Unplug the ac adapter cable from the ac adapter does not always indicate a defect. Check that the battery pack supplies power when you suspect a power problem, see the appropriate one of the following power supply checkouts: v "Checking the ac adapter" v ...
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... able to 100% of its capacity. 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) To check the battery pack, do not click), and the percentage of battery power remaining is displayed. See the following : 1. If...
... able to 100% of its capacity. 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) To check the battery pack, do not click), and the percentage of battery power remaining is displayed. See the following : 1. If...
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... and unplug the ac adapter from it. 2. Measure the voltage of the backup battery. Checking the backup battery Do the following figure. See the following : 1. General descriptions 37 Remove the backup battery (see "1010 Battery pack" on page 60.) 4. Checkout guide Note: Recharging will take at least... not turn on page 36.) 5. If the resistance is not correct, replace the battery pack. Red (+) Black (-) Wire Red Black Voltage (V dc) +2.5 to 30 K . Remove the battery pack (see "Checking the battery pack" on . v If the voltage is correct, replace the system board. If...
... and unplug the ac adapter from it. 2. Measure the voltage of the backup battery. Checking the backup battery Do the following figure. See the following : 1. General descriptions 37 Remove the backup battery (see "1010 Battery pack" on page 60.) 4. Checkout guide Note: Recharging will take at least... not turn on page 36.) 5. If the resistance is not correct, replace the battery pack. Red (+) Black (-) Wire Red Black Voltage (V dc) +2.5 to 30 K . Remove the battery pack (see "Checking the battery pack" on . v If the voltage is correct, replace the system board. 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-FRU index... Retaining serial numbers 57 Restoring the serial number of the system unit 57 Retaining the UUID 57 Removing and replacing a FRU 59 1010 Battery pack 60 1020 Backup battery 61 1030 Hard-disk drive 63 1040 DIMM 65 1050 Mini PCI adapter 66 For T20, T21 and T22 series 66 For T23...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-FRU index... Retaining serial numbers 57 Restoring the serial number of the system unit 57 Retaining the UUID 57 Removing and replacing a FRU 59 1010 Battery pack 60 1020 Backup battery 61 1030 Hard-disk drive 63 1040 DIMM 65 1050 Mini PCI adapter 66 For T20, T21 and T22 series 66 For T23...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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Blinking orange: The battery needs to be charged. ThinkPad T20, T21, T22 and T23 series 45 Green: This indicator stays lighted whenever the computer is ready to move the cursor. If the power-on ... is installed and in standby mode. Not all application programs support this function. Blinking green: The battery has enough power to operate, but not to use. Orange: The battery power is being charged. Note: If you are on 6 Battery 7 Standby status 8 Ultrabay status Product overview Meaning Green: Scroll Lock mode is enabled. The...
Blinking orange: The battery needs to be charged. ThinkPad T20, T21, T22 and T23 series 45 Green: This indicator stays lighted whenever the computer is ready to move the cursor. If the power-on ... is installed and in standby mode. Not all application programs support this function. Blinking green: The battery has enough power to operate, but not to use. Orange: The battery power is being charged. Note: If you are on 6 Battery 7 Standby status 8 Ultrabay status Product overview Meaning Green: Scroll Lock mode is enabled. The...
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...jack and the modem card in turn, and run the following : v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 46 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Diagnostics --> Systemboard --> Keyboard 2. After you use the TrackPoint, the pointer may ... If enabling the TrackPoint does not correct the problem, continue with the following test in the ThinkPad Configuration program. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Lucent Soft Modem Dialtone (T23 only) e. Intel SP Modem Loopback/DTMF i. 3Com...
...jack and the modem card in turn, and run the following : v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 46 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Diagnostics --> Systemboard --> Keyboard 2. After you use the TrackPoint, the pointer may ... If enabling the TrackPoint does not correct the problem, continue with the following test in the ThinkPad Configuration program. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Lucent Soft Modem Dialtone (T23 only) e. Intel SP Modem Loopback/DTMF i. 3Com...
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..., during regular servicing, what FRUs are likely to need to "Intermittent problems" on page 55. Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for each error detected in this section lists symptoms and errors and their possible causes.... System board. 0187 EAIA data access error-The access to -FRU index in POST or system operation. ThinkPad T20, T21, T22 and T23 series 49 Charge the battery pack. 2. This index can be replaced next. If replacing a FRU does not solve the problem, put the original...
..., during regular servicing, what FRUs are likely to need to "Intermittent problems" on page 55. Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for each error detected in this section lists symptoms and errors and their possible causes.... System board. 0187 EAIA data access error-The access to -FRU index in POST or system operation. ThinkPad T20, T21, T22 and T23 series 49 Charge the battery pack. 2. This index can be replaced next. If replacing a FRU does not solve the problem, put the original...
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... and date. System board. I/O card. 1. Reset the password by running IBM BIOS Setup Utility. 1. External FDD cable. 3. System board. 1. DIMM. 2. DIMM. 2. System board. 1. System board. 1. System board. ThinkPad T20, T21, T22 and T23 series 51 System board. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System...
... and date. System board. I/O card. 1. Reset the password by running IBM BIOS Setup Utility. 1. External FDD cable. 3. System board. 1. DIMM. 2. DIMM. 2. System board. 1. System board. 1. System board. ThinkPad T20, T21, T22 and T23 series 51 System board. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System...
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... System board. 1. Diskette drive. 6. System board. 1. Thermal sensing error. Backup battery. 3. Load "Setup Defaults" in IBM BIOS Setup Utility. 2. System board. 1. Reseat the hard-disk drive. 4. System board. 52 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Failing bits: nnnn. I/O device... conflict. Allocation error for device. Invalid system configuration data. Hibernation error. System board. 1. Backup battery. 3. DIMM. 2. Backup battery. 3. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. ...
... System board. 1. Diskette drive. 6. System board. 1. Thermal sensing error. Backup battery. 3. Load "Setup Defaults" in IBM BIOS Setup Utility. 2. System board. 1. Reseat the hard-disk drive. 4. System board. 52 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Failing bits: nnnn. I/O device... conflict. Allocation error for device. Invalid system configuration data. Hibernation error. System board. 1. Backup battery. 3. DIMM. 2. Backup battery. 3. Enter IBM BIOS Setup Utility and see whether the hard-disk drive and the diskette drive are properly identified. ...
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..."Power system checkout" on the computer. 5. Follow these procedures to isolate the failing FRU (do not replace any FRUs. 3. Non-IBM devices b. Hard-disk drive f. System board b. Undetermined problems You are here because the diagnostic tests did not identify which adapter or ... the Ultrabay i. PC Cards 4. Determine whether the problem has changed. 6. If any damaged FRU. 3. LCD assembly ThinkPad T20, T21, T22 and T23 series 55 Battery pack e. External diskette drive g. Verify that have nothing to the port replicator c. FRU replacement should be due to...
..."Power system checkout" on the computer. 5. Follow these procedures to isolate the failing FRU (do not replace any FRUs. 3. Non-IBM devices b. Hard-disk drive f. System board b. Undetermined problems You are here because the diagnostic tests did not identify which adapter or ... the Ultrabay i. PC Cards 4. Determine whether the problem has changed. 6. If any damaged FRU. 3. LCD assembly ThinkPad T20, T21, T22 and T23 series 55 Battery pack e. External diskette drive g. Verify that have nothing to the port replicator c. FRU replacement should be due to...
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... in square callouts. 5. Verify this by shaking the computer gently and listening for use the correct screw as indicated in the drawings by , electrostatic discharge. 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. Do... before the failing FRU. Attention: The system board is powered on after FRU replacement, make sure that all power cords from electrical outlets, remove the battery pack, and then disconnect any notes that have been trained and certified.
... in square callouts. 5. Verify this by shaking the computer gently and listening for use the correct screw as indicated in the drawings by , electrostatic discharge. 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. Do... before the failing FRU. Attention: The system board is powered on after FRU replacement, make sure that all power cords from electrical outlets, remove the battery pack, and then disconnect any notes that have been trained and certified.
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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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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 Use of the battery. 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.
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 Use of the battery. 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.
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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)