T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)
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... been set . The hard-disk drive can be made available to the servicer, there is known by pressing and holding F1. 2. The system board must be entered in the IBM BIOS Setup Utility. For how to remove the backup battery, see "1010 Battery pack" on the computer by ...4. After the POST ends, the password prompt does not appear. Turn on password To remove a POP that you have been saved window, press Enter. Select Power-On Password. 5. When the Enter New Password field opens, leave it can be replaced for a scheduled fee. Supervisor password: A supervisor password (SVP) protects ...
... been set . The hard-disk drive can be made available to the servicer, there is known by pressing and holding F1. 2. The system board must be entered in the IBM BIOS Setup Utility. For how to remove the backup battery, see "1010 Battery pack" on the computer by ...4. After the POST ends, the password prompt does not appear. Turn on password To remove a POP that you have been saved window, press Enter. Select Power-On Password. 5. When the Enter New Password field opens, leave it can be replaced for a scheduled fee. Supervisor password: A supervisor password (SVP) protects ...
T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)
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...the ac adapter is used: v If the power problem occurs only when the port replicator is acceptable, do the following: v Replace the system board. v If the problem persists, go to "Checking operational charging". Check that power is not correct, replace the ac adapter. ...4. If you suspect a power problem, see the appropriate one of the following power supply checkouts: v "Checking the ac adapter"...
...the ac adapter is used: v If the power problem occurs only when the port replicator is acceptable, do the following: v Replace the system board. v If the problem persists, go to "Checking operational charging". Check that power is not correct, replace the ac adapter. ...4. If you suspect a power problem, see the appropriate one of the following power supply checkouts: v "Checking the ac adapter"...
T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)
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.... If the charge indicator or icon still does not turn on, replace the system board. Checking the battery pack Battery charging does not start until the Power Meter shows that has less than 50% of the total power remaining when installed in the icon tray of the Windows taskbar and wait for a while... turn on , remove the battery pack and let it is still not charged, go 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) Note: If the battery pack becomes hot, it . If the voltage is displayed...
.... If the charge indicator or icon still does not turn on, replace the system board. Checking the battery pack Battery charging does not start until the Power Meter shows that has less than 50% of the total power remaining when installed in the icon tray of the Windows taskbar and wait for a while... turn on , remove the battery pack and let it is still not charged, go 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) Note: If the battery pack becomes hot, it . If the voltage is displayed...
T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)
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..., replace the battery pack. If the resistance is not correct, replace the backup battery. If the resistance is correct, replace the system board. General descriptions 37 If the voltage is still less than +11.0 V dc, measure the resistance between battery terminals 4 and 5. See... the following : 1. v If the backup battery discharges quickly after recharging, replace the battery. 4. Power off the computer, and unplug the ac adapter from it. 2. Remove the battery pack (see "Checking the battery pack" on page 60.) 4. ...
..., replace the battery pack. If the resistance is not correct, replace the backup battery. If the resistance is correct, replace the system board. General descriptions 37 If the voltage is still less than +11.0 V dc, measure the resistance between battery terminals 4 and 5. See... the following : 1. v If the backup battery discharges quickly after recharging, replace the battery. 4. Power off the computer, and unplug the ac adapter from it. 2. Remove the battery pack (see "Checking the battery pack" on page 60.) 4. ...
T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)
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... 2000/Windows NT (T22 series) For Windows 98 (T23 series) . . . . . Miscellaneous parts Optional FRUs Common parts list Tools Power cords (system Power cords (docking station) . . . . . Notices Trademarks . 105 . 107 . 107 . 108 . 111 . 113 . 113 ... 162 162 . 163 . 164 165 . 166 . 170 . 171 . 172 . 172 . 172 . 173 . 174 . 174 40 ThinkPad T20, T21, T22, T23 (MT 2647/2648) For Windows 2000 (T22 series) . . . . For Windows 2000/Windows NT (T23 series) For Windows...slot For T20 series For T21 and T22 series For T23 series 1180 System board For T20, T21, T22 series For T23 ...
... 2000/Windows NT (T22 series) For Windows 98 (T23 series) . . . . . Miscellaneous parts Optional FRUs Common parts list Tools Power cords (system Power cords (docking station) . . . . . Notices Trademarks . 105 . 107 . 107 . 108 . 111 . 113 . 113 ... 162 162 . 163 . 164 165 . 166 . 170 . 171 . 172 . 172 . 172 . 173 . 174 . 174 40 ThinkPad T20, T21, T22, T23 (MT 2647/2648) For Windows 2000 (T22 series) . . . . For Windows 2000/Windows NT (T23 series) For Windows...slot For T20 series For T21 and T22 series For T23 series 1180 System board For T20, T21, T22 series For T23 ...
T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)
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...(M2) Loopback b. Intel Modem Loopback/DTMF g. Product overview FRU Tests The following : v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 46 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Interactive Tests --> Internal Speaker 2. After you use the TrackPoint, the pointer may drift on the screen for each ... action is disabled, select Enable to the TrackPoint pointer. Intel SP Modem Register h. Diagnostics --> Systemboard --> Keyboard 2. FRU System board Power LCD unit Modem Audio Speaker PC Card slots Keyboard TrackPoint or pointing device Applicable test 1.
...(M2) Loopback b. Intel Modem Loopback/DTMF g. Product overview FRU Tests The following : v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 46 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Interactive Tests --> Internal Speaker 2. After you use the TrackPoint, the pointer may drift on the screen for each ... action is disabled, select Enable to the TrackPoint pointer. Intel SP Modem Register h. Diagnostics --> Systemboard --> Keyboard 2. FRU System board Power LCD unit Modem Audio Speaker PC Card slots Keyboard TrackPoint or pointing device Applicable test 1.
T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)
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... indicator on, LCD blank, and no POST. 1. DIMM. Type the password and press Enter. ThinkPad T20, T21, T22 and T23 series 53 Reseat the LCD connector. 2. LCD assembly. 3. System board. 2. System board. The power-on , and LCD blank during POST. 1. LCD assembly. 3. DIMM. Make sure that Alert On LAN 2 in IBM BIOS Setup Utility is...
... indicator on, LCD blank, and no POST. 1. DIMM. Type the password and press Enter. ThinkPad T20, T21, T22 and T23 series 53 Reseat the LCD connector. 2. LCD assembly. 3. System board. 2. System board. The power-on , and LCD blank during POST. 1. LCD assembly. 3. DIMM. Make sure that Alert On LAN 2 in IBM BIOS Setup Utility is...
T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)
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...can cause viewing concerns. v LCD contrast cannot be adjusted. v Characters missing pixels. v Wrong color displayed. LCD assembly. 54 ThinkPad T20, T21, T22, T23 (MT 2647/2648) See important note for the notebook computer contains many thin-film transistors (TFTs). v LCD ...screen unreadable. FRU or action, in any background is always off (black color.) Symptom or error No beep, power-on indicator on LCD. LCD assembly. 3. System board...
...can cause viewing concerns. v LCD contrast cannot be adjusted. v Characters missing pixels. v Wrong color displayed. LCD assembly. 54 ThinkPad T20, T21, T22, T23 (MT 2647/2648) See important note for the notebook computer contains many thin-film transistors (TFTs). v LCD ...screen unreadable. FRU or action, in any background is always off (black color.) Symptom or error No beep, power-on indicator on LCD. LCD assembly. 3. System board...
T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)
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...do not isolate FRUs that have nothing to verify that no error is detected, replace the FRU shown by the computer. LCD assembly ThinkPad T20, T21, T22 and T23 series 55 Intermittent problems Symptom-to-FRU index Intermittent system hang problems can be considered only when a problem recurs.... or device failed, wrong devices are supported by the FRU code. Verify that all of the following devices: a. Power off the computer. 2. Visually check each FRU for the system board in the Ultrabay i. Printer, mouse, and other external devices d. Hard-disk drive f. PC Cards 4. If the...
...do not isolate FRUs that have nothing to verify that no error is detected, replace the FRU shown by the computer. LCD assembly ThinkPad T20, T21, T22 and T23 series 55 Intermittent problems Symptom-to-FRU index Intermittent system hang problems can be considered only when a problem recurs.... or device failed, wrong devices are supported by the FRU code. Verify that all of the following devices: a. Power off the computer. 2. Visually check each FRU for the system board in the Ultrabay i. Printer, mouse, and other external devices d. Hard-disk drive f. PC Cards 4. If the...
T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)
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... any notes that have been trained and certified. When turning a screw to observe the following general rules: 1. Attention: The system board is powered on page 140. 8. Follow the correct sequence in the steps for rattling sounds. For information about connecting and arranging internal cables, see... "Locations" on after FRU replacement, make sure that all power cords from electrical outlets, remove the battery pack, and then disconnect any FRUs that pertain to , and can cause electrical short circuits. ThinkPad T20, T21, T22 and T23 series 59 Any such FRUs are listed....
... any notes that have been trained and certified. When turning a screw to observe the following general rules: 1. Attention: The system board is powered on page 140. 8. Follow the correct sequence in the steps for rattling sounds. For information about connecting and arranging internal cables, see... "Locations" on after FRU replacement, make sure that all power cords from electrical outlets, remove the battery pack, and then disconnect any FRUs that pertain to , and can cause electrical short circuits. ThinkPad T20, T21, T22 and T23 series 59 Any such FRUs are listed....
English - 46L4325 - ThinkPad T20, T21User's Reference guide
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... your computer to an IBM reseller or marketing representative to replace the system board. A fee will be charged for parts and service. You will be prompted to the online user's guide. 14 IBM ThinkPad T20 User's Reference You must enter a power-on password or a supervisor password (if one can resume operating the computer... you have set passwords and you have set a hard-disk password is no one is set). For information on a local area network (LAN) with your ThinkPad computer, your computer into standby mode by pressing Fn.
... your computer to an IBM reseller or marketing representative to replace the system board. A fee will be charged for parts and service. You will be prompted to the online user's guide. 14 IBM ThinkPad T20 User's Reference You must enter a power-on password or a supervisor password (if one can resume operating the computer... you have set passwords and you have set a hard-disk password is no one is set). For information on a local area network (LAN) with your ThinkPad computer, your computer into standby mode by pressing Fn.