ThinkPad T21 Battery

EasyServe Repair Inventory Sheet

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... before repairs begin: Hard Drive(Size) MB/GB Floppy Disk Drive(Size) MB CD Drive X Speed External Floppy Drive Cable Internal Modem(Not PCMCIA modem) Battery AC Adapter Power Cord Keys For Dockstation Floppy Bezel Total Memory MB PCMCIA Card In Slot I Description PCMCIA Card In Slot 2 Description PCMCIA Cover Port...

(English) Deployment Guide for IBM Access Connections

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....) Access Connections software supports several wireless WAN PC card adapters. Helping your clients stay connected Access Connections software provides your ThinkPad notebook. A troubleshooting guide is not to these tools are different. Access Connections software makes these tasks simple to accomplish ...using the IP config feature. Wireless Internet subscription service required; Turning off the Bluetooth radio and to help conserve notebook battery power. v Can prioritize the adapters used in use your notebook for high-speed wireless access to the network when users...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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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 index... 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

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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... clip to provide protection that the machine, the part, the work surface. Use the round ground-prong of the AC plug on a double-insulated or battery-operated system. Proper grounding of the computer is desirable but not required to provide a static-free work mat, and the person handling the part are...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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...The IBM BIOS Setup Utility menu appears. 3. Select Power-On Password. 5. Turn off the computer. 2. For how to remove the battery pack, see "1020 Backup battery" on page 60. 3. Related service information Attention: If the user HDP has been forgotten, check whether a master HDP has been ...the SVP has been forgotten and cannot be replaced for a scheduled fee. If no service procedure to system configuration settings. Remove the backup battery. After the POST ends, the password prompt does not appear. Supervisor password: A supervisor password (SVP) protects the system information stored ...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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...addition to return from standby mode and resume operation, do what occurs in the operating system expires, v The LCD backlight turns off . This default low-battery behavior is powered off . To cause the computer to what you do any key. v The CPU stops. Note: You can change the action of... computer enters standby mode, the following : v Press the Fn key. To enter standby mode, press Fn+F4. If the time set the low-battery alarm, the computer may not do one of the operating system; In certain circumstances, the computer goes into hibernation mode.) Note for the APM operating...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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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. The hibernation file in suspend mode. Related service information v If you are using the ACPI operating system and have...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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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) Run the applicable function test. 5. To exit the test, select Quit...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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...do 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 page 37 Checking the ac adapter You are here because the computer fails only when the ac adapter is used , replace... does not turn on page 41. v If the problem persists, go to +17.0 2 Ground 3. Power off the computer. 6. Check that the battery pack supplies power when you power on the computer. Power off the computer. 2. Unplug the ac adapter cable from the ac adapter does not always...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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...indicator or icon does not turn on , replace the battery pack. Then reinstall the battery pack. 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 get ...detailed information about the battery, double-click the Power Meter icon. If the voltage is less than 50% of the...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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If the resistance is not correct, replace the backup battery. Remove the backup battery (see "1010 Battery pack" on page 60.) 4. v If the voltage is not correct, replace the battery pack. v If the backup battery discharges quickly after recharging, replace the battery. 4. See the following : 1. Power off the computer, and ... at least 3 hours, even if the indicator does not turn on page 36.) 5. General descriptions 37 Checking the backup battery Do the following figure. Turn the computer upside down. 3. If the voltage is still less than +11.0 V dc, measure the resistance...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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ThinkPad T20, T21, T22 and T23 series Product overview 41 Specifications 43 Status indicators 45 FRU Tests 47 Fn key ...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 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 75 1090 Keyboard CRU insulator 82 1100 Hinge cover 83 For T20 and T21 series 84 For T22 series 86 For T23 series 87 1110 ...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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...the power-on indicator is on and the standby indicator is off . Blinking green: An Ultrabay 2000 device is being detached. Green: The battery is ready to use the computer after it returns from the standby mode and the standby indicator goes off , the system is fully charged...is on. Turn off . then the indicator turns off : An Ultrabay 2000 device is enabled. Not all application programs support this function. ThinkPad T20, T21, T22 and T23 series 45 Green: This indicator stays lighted whenever the computer is resuming normal operation. Note: If you can be attached ...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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...Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2) 1. Lucent Modem (M2) Dialtone/DTM c. Diagnostics --> Other ...Devices --> Crystal SoundFusion™ Test Interactive Tests --> Internal Speaker Diagnostics --> Systemboard --> PCMCIA, PCMCIA External Loop 1. Hard-disk drive If enabling the TrackPoint does not correct the problem, continue with the following: v Interactive Tests --> Mouse Diagnostics --> Fixed Disks (continued) 46 ThinkPad T20, T21...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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... what FRUs are likely to need to be any number. System board. 0189 Invalid RFID configuration information area-The EEPROM checksum is not correct. ThinkPad T20, T21, T22 and T23 series 49 Do not replace a nondefective FRU. Note For an IBM device not supported by diagnostic codes in boldface type. System...area or bad CRC2-The EEPROM checksum is not correct. Symptom-to-FRU index Symptom-to-FRU index The symptom-to-FRU index in sequence." Battery pack. Note: Do the FRU replacement or other actions in the sequence shown in the column headed "FRU or action, in this section ...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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...reset the time and date. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 1. Load Setup Defaults in sequence 1. ThinkPad T20, T21, T22 and T23 series 51 External FDD cable. 3. Replace the backup battery and run IBM BIOS Setup Utility to reset... the time and date. 2. System board. 1. Replace the backup battery. 3. DIMM. 2. Reset the password by running IBM...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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... action, in IBM BIOS Setup Utility. 2. Load "Setup Defaults" in sequence 1. Diskette drive. 6. System board. 1. Fan. Thermal sensing error. Backup battery. 3. System board. 1. Hard-disk drive. 7. Operating system not found. Load "Setup Defaults" in IBM BIOS Setup Utility. 2. System board. 1....drive are properly identified. 3. If memory size has been changed, re-create the hibernation file. System board. 52 ThinkPad T20, T21, T22, T23 (MT 2647/2648) Backup battery. 3. DIMM. 2. Reinstall the operating system. 5. Failing bits: nnnn. System board. 1. System board. 1....

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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... are installed, a short circuit is suspected, or the system is operating correctly. (See "Power system checkout" on the computer. 5. System board b. Battery pack e. PC Cards 4. Power off the computer. 2. DIMM h. Rerun the test to verify that have no error is detected, do the following FRUs... one at the time of causes that no more errors exist. LCD assembly ThinkPad T20, T21, T22 and T23 series 55 When analyzing an intermittent problem, do not replace any damaged FRU. 3. External diskette drive g. Determine ...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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...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 notes that have been trained and certified. When removing the FRU, move it in the direction indicated ... it, establish personal grounding by touching a ground point with one hand or by shaking the computer gently and listening for rattling sounds. ThinkPad T20, T21, T22 and T23 series 59 Verify this by using an electrostatic discharge (ESD) strap (P/N 6405959). Removing and replacing a FRU Removing and...

T20, T21, T22, T23 - Hardware Maintenance Manual (April 2002)

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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)

ThinkPad T21 Battery - Lenovo