Home > IBM > Notebook > IBM Thinkpad A20mp A21mp A22mp Manual

IBM Thinkpad A20mp A21mp A22mp Manual

Here you can view all the pages of manual IBM Thinkpad A20mp A21mp A22mp Manual. The IBM manuals for Notebook are available online for free. You can easily download all the documents as PDF.

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...

Page 42

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,...

Page 43

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...

Page 44

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...

Page 45

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...

Page 46

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...

Page 47

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...

Page 48

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...

Page 49

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...

Page 50

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...
Start reading IBM Thinkpad A20mp A21mp A22mp Manual

Related Manuals for IBM Thinkpad A20mp A21mp A22mp Manual

All IBM manuals