IBM A21e Support Question
IBM A21e Support Question
Find answers below for this question about IBM A21e - ThinkPad 2628 - Celeron 600 MHz.Need a IBM A21e manual? We have 1 online manual for this item!
Question posted by bob on May 20th, 2010
Where Is Cmos Battery
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Related IBM A21e Manual Pages
Hardware Maintenance Manual - Page 3
... guide 27 Testing the computer 27 Detecting system information with PC-Doctor. . . 29 Power system checkout 29
ThinkPad A21e 33 Product overview 35
Specifications 35 Status indicators 36 FRU Tests 38 Fn key combinations 40 Symptom-to-FRU index... notices 47 Retaining serial numbers 48 Removing and replacing a FRU 50 1010 Battery pack 51 1020 DIMM 52 1030 Mini PCI adapter 53 1040 Backup...
Hardware Maintenance Manual - Page 20
... drives are wearing a wrist strap. Elsewhere, the drive is certified in the U.S. Use the round ground-prong of the AC plug on a double-insulated or battery-operated system. You can be verified by a certified electrician. Attach the ESD ground clip to the requirements of Federal Regulations (DHHS 21 CFR) Subchapter J for...
Hardware Maintenance Manual - Page 30
... with ac power and a communication PC Card is restored from the hard-disk drive.
26 ThinkPad A21e v The system is powered off and the mode is set to enter hibernation mode when the... is turned on the hard-disk drive is read, and system status is used. v A critically low battery condition occurs. v The timer conditions are
stored on the hard disk. Related service information v The system ...
Hardware Maintenance Manual - Page 34
...ac adapter for correct continuity and installation. Checkout guide v "Checking the backup battery" on page 32
Checking the ac adapter
You are here because the computer fails... Then reinstall the battery pack. Note: Noise from the computer. 2. v If the problem persists, go to the next section.
30 ThinkPad A21e Checking operational charging
To check whether the battery charges properly during ...
Hardware Maintenance Manual - Page 36
... computer, and unplug the ac adapter
from it. 2.
v If the backup battery discharges quickly after
replacement, replace the system board.
32 ThinkPad A21e
Turn the computer upside down. 3. v If the voltage is correct, replace the system board. Measure the voltage of the backup battery. See the
following : 1. The resistance must be 4 to +3.2 Ground
v If...
Hardware Maintenance Manual - Page 37
... 87 Front view 87 Rear view 88 Bottom view 89
Parts list 90 LCD FRU 93
33 ThinkPad A21e
Product overview 35 Specifications 35 Status indicators 36 FRU Tests 38 Fn key combinations 40
Symptom-to...Retaining the UUID 49
Removing and replacing a FRU 50 1010 Battery pack 51 1020 DIMM 52 1030 Mini PCI adapter 53 1040 Backup battery 55 1050 Hard-disk drive 56 1060 Ultrabay 2000 device 58...
Hardware Maintenance Manual - Page 39
... 40
Specifications
The following table lists the specifications of the ThinkPad A21e series:
Feature Processor Bus architecture Memory (standard) Memory (optional) CMOS RAM Display
Diskette drive Hard-disk drive I/O port
Internal modem Audio PC Card AC adapter Bay device
Description
Intel® Celeron® processor 600 MHz, L2 128-KB cache
PCI Bus
64 MB (SO...
Hardware Maintenance Manual - Page 40
... indicators show the status of the computer, as follows:
Indicator 1 Battery
Meaning
Green: The battery is resuming normal operation. The battery is in Windows 98, Windows 2000 and Windows Me.
(continued)
36 ThinkPad A21e This indicator does not blink in standby mode. Blinking green:
The battery has enough power to be charged. when the indicator starts...
Hardware Maintenance Manual - Page 42
... problem. Diagnostics --> Systemboard
Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1 (IBM Battery 2)
1. Interactive Tests --> Internal Speaker 2. If the TrackPoint is applied to enable...following : v Interactive Tests --> Mouse
Diagnostics --> Fixed Disks
(continued) 38 ThinkPad A21e Diagnostics --> Other Devices --> Crystal
SoundFusion™ Test
1. FRU System board ...
Hardware Maintenance Manual - Page 46
...0251 System CMOS checksum bad-Default configuration used. Keyboard error.
System board.
0271 Date and time error - Battery pack.
0200 Hard disk error - Load Setup Defaults in CMOS. Monitor type... battery and run IBM BIOS Setup Utility to reset the time and date.
0252 Password checksum bad -
Run IBM BIOS Setup Utility to reset the time and date.
(continued) 42 ThinkPad A21e ...
Hardware Maintenance Manual - Page 47
...docking station
ThinkPad A21e 43 External FDD cable. 3. Load Setup Defaults in IBM BIOS Setup Utility.
2. DIMM. 2. Default configuration used.
02B2 Incorrect drive A type.
02F4 EISA CMOS not writable....
02F5 DIMM test failure. 02F6 Software NMI failure. 02F7 Fail-safe timer NMI failure. 1801 Attached docking station is not supported. Replace the backup battery. 3....
Hardware Maintenance Manual - Page 48
...hibernation file. Operating system not found.
Load Setup Defaults in IBM BIOS Setup Utility.
2. Backup battery. 3. System board.
1. Load Setup Defaults in sequence
1. System board.
1. I/O device IRQ...drive. 7. Fan. Shut down the computer and remove the extra memory.
44 ThinkPad A21e Hibernation error. Backup battery. 3. Check that the operating system has no failure and is 256 MB. ...
Hardware Maintenance Manual - Page 51
...time of the following characteristics: v They maintain tight connections. The an IBM ThinkPad computer address this section carefully before replacing any FRU. Verify that have the following devices:
a. Battery pack e. If any
damaged FRU. 3.
Replace any error is detected, ...recur, reconnect the removed devices one at a time until you find the failing FRU. 7.
ThinkPad A21e 47
Hardware Maintenance Manual - Page 54
... powered on after FRU replacement, make sure all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. When replacing a FRU, use the correct screw...certified.
You must use in the drawing. 6. Be sure to establish personal grounding.
50 ThinkPad A21e Begin by local ordinances or regulations. To put the new FRU in place, reverse the...
Hardware Maintenance Manual - Page 55
... the type recommended by IBM, or an equivalent, (2) keep the battery pack away from fire, (3) do not expose it to water or rain, (4) do not attempt to disassemble it, (5) do not short-circuit it.
Do not put the battery pack in landfills. ThinkPad A21e 51 To avoid possible injury: (1) replace only with local ordinances...
Hardware Maintenance Manual - Page 56
Pivot the DIMM until it . Make sure that the card is firmly fixed in the slot and does not move easily.
52 ThinkPad A21e 1020 DIMM
Removing and replacing a FRU
v Battery pack (1010) Note: Loosen the screw 1 , but do not remove it snaps into the socket, then press it firmly. When installing: With the notched end of the DIMM toward the socket, insert the DIMM into place.
Hardware Maintenance Manual - Page 57
Removing and replacing a FRU
1030 Mini PCI adapter
v Battery pack (1010) Note: Loosen the screw 1 , but do not remove it.
1
2
(continued)
ThinkPad A21e 53
Hardware Maintenance Manual - Page 59
...no. To avoid possible injury or death, do not: (1) throw or immerse the battery into water, (2) allow it to heat to more than 100°C (212°F),...is incorrectly replaced. v Battery pack (1010) v DIMM (1020) v Mini PCI adapter (1030)
ThinkPad A21e 55 Removing and replacing a FRU
1040 Backup battery
CAUTION: There is a danger of an explosion if the backup battery is not properly handled or...
Hardware Maintenance Manual - Page 87
panel
Step MT
1
2628-Cxx
(continued)
Screw (quantity)
M2.5 × 7.0 mm, nylon-coated (4)
Torque
39.2 Ncm (4 kgfcm)
ThinkPad A21e 83 2040 LCD panel
Removing and replacing a FRU
v Battery pack (1010) v Hard-disk drive (1050) v Ultrabay 2000 device (1060) v Keyboard (1070) v Keyboard CRU insulator (1080) v Hinge cover (1090) v Keyboard bezel and speaker (1100) v LCD ...
Hardware Maintenance Manual - Page 102
... PCI combo card (3Com) Mini PCI modem card (IBM CR) Mini PCI modem card (Ambit) Mini PCI Ethernet card (Intel) Multiple battery charger Ultrabay 2000 2nd HDD adapter Ultrabay 2000 battery ThinkPad Port Replicator
Parts list
20L0264 20L0265 02K6666 02K6670 02K6669 02K6677 02K6673 08K9579 27L3436 27L4087 27L3447 05K9235 00N7955 00N8254 08K9508 08K9531 27L3427...
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