IBM Thinkpad A20mp A21mp A22mp Manual
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Page 41
5. Follow the instructions on the screen. If there is a problem, PC-Doctor shows messages describing it. 6. To exit the test, selectQuit—Exit Diag. To cancel the test, press Esc. Note:After executing PC-Doctor, check the system time/date and reset them if needed. Detecting system information with PC-Doctor PC-Doctor can detect the following system information: Hardware InfovSystem Configuration vMemory Contents vPhysical Disk Drives vLogical Disk Drives vVGA Information vIDE Drive Info vPCI Information...
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v“Checking the ac adapter” v“Checking operational charging” v“Checking the battery pack”on page 37 v“Checking the backup battery”on page 37 Checking the ac adapterYou are here because the computer fails only when the ac adapter is used: vIf the power problem occurs only when the port replicator is used, replace the port replicator. vIf the power-on indicator does not turn on, check the power cord of the ac adapter for correct continuity and installation. vIf the computer does not charge during operation,...
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Checking the battery packBattery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life. To check the status of your battery, move your cursor to the Power Meter icon in the icon tray of the Windows taskbar and wait for a moment (but do not click), and the percentage of battery power remaining is...
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3. Remove the battery pack (see“1010 Battery pack”on page 60 ). 4. Remove the backup battery (see“Checking the battery pack”on page 37). 5. Measure the voltage of the backup battery. See the following figure. Red (+) Black (-)Wire Voltage (V dc) Red +2.5 to +3.2 Black Ground vIf the voltage is correct, replace the system board. vIf the voltage is not correct, replace the backup battery. vIf the backup battery discharges quickly after replacement, replace the system board. Checkout guide 38ThinkPad...
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ThinkPad A20m/p, A21m/p and A22m/p Product overview............41 Specifications............41 Status indicators...........44 FRU tests.............46 Fn key combinations..........48 Symptom-to-FRU index..........49 Numeric error codes..........49 Error messages...........52 Beep symptoms...........53 No beep symptoms..........53 LCD-related symptoms.........54 Intermittent problems..........55 Undetermined problems.........55 FRU replacement notices.........56 Screw notices............56 Retaining...
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12.1-in. panel...........96 14.1-in. and 15.0-in. panels.......97 2030 Inverter card..........99 12.1-in. panel...........99 14.1-in. and 15.0-in. panels......100 2040 LCD panel...........101 12.1-in. panel...........101 14.1-in. and 15.0-in. panels......103 3010 ThinkPad Dock PCI cover......105 3020 ThinkPad Dock top cover......107 Locations..............112 Front view.............112 Rear view.............113 Bottom view............114 Parts list..............115 A series model matrix.........115...
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Product overview This section presents the following product-unique information: v“Specifications” v“Status indicators”on page 44 v“FRU tests”on page 46 v“Fn key combinations”on page 48 Specifications The following table lists the specifications of the ThinkPad A20m/p, A21m/p and A22m/p series: Feature Description ProcessorA20m vIntel ®Celeron®processor 500 MHz, L2 256-KB cache vIntel ®Celeron®processor 550 MHz, L2 256-KB cache vMobile Intel ®Pentium®III processor 500 MHz, L2 256-KB cache vMobile Intel...
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Feature Description ProcessorA21p vMobile Intel ®Pentium®III processor at 850 MHz featuring Intel®SpeedStep™ technology A22m vMobile Intel ®Pentium®III processor at 800 MHz featuring Intel®SpeedStep™ technology vMobile Intel®Pentium®III processor at 850 MHz featuring Intel®SpeedStep™ technology vMobile Intel®Pentium®III processor at 900 MHz featuring Intel®SpeedStep™ technology vMobile Intel®Pentium®III processor at 1 GHz featuring Intel®SpeedStep™ technology A22p vMobile Intel ®Pentium®III processor at...
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Feature Description Diskette drive 1.44 MB (3-mode), 3.5-inch Hard-disk driveA20m/p v6.0 GB, 2.5-inch, IDE interface v12.0 GB, 2.5-inch, IDE interface v18.0 GB, 2.5-inch, IDE interface v20.0 GB, 2.5-inch, IDE interface A21m/p v10.0 GB, 2.5-inch, IDE interface v20.0 GB, 2.5-inch, IDE interface v32.0 GB, 2.5-inch, IDE interface A22m/p v10.0 GB, 2.5-inch, IDE interface v20.0 GB, 2.5-inch, IDE interface v30.0 GB, 2.5-inch, IDE interface v32.0 GB, 2.5-inch, IDE interface I/O portvExternal monitor vLine-in...
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Status indicators The system status indicators show the status of the computer, as follows: Indicator Meaning 1BatteryGreen:The battery is fully charged. Blinking green: The battery has enough power to operate, but is being charged. Orange:The battery power is low. The battery is to being charged. Blinking orange: The battery needs to be charged. when the indicator starts blinking orange, the computer beeps three times. 2Standby statusGreen:The computer is in standby mode. Blinking green: The...