IBM MT 2632 manual Symptom-to-FRU index, Numeric error codes

Page 45

Symptom-to-FRU index

Symptom-to-FRU index

The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most likely cause is listed first, in boldface type.

Note: Do the FRU replacement or other actions in the sequence shown in the column headed “FRU or action, in sequence.” If replacing a FRU does not solve the problem, put the original part back in the computer. Do not replace a nondefective FRU.

This index can also help you determine, during regular servicing, what FRUs are likely to need to be replaced next.

A numeric error is displayed for each error detected in POST or system operation. In the displays, n can be any number.

If no numeric code is displayed, check the narrative descriptions of symptoms. If the symptom is not described there, go to “Intermittent problems” on page 46.

Note

For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device.

Numeric error codes

Symptom or error		FRU or action, in sequence

0175		System board.
Bad CRC1, stop POST task —
The EEPROM checksum is not
correct.

0187		System board.
EAIA data access error — The
access to EEPROM has failed.

0188		System board.
Invalid RFID serialization
information area or bad CRC2
— The EEPROM checksum is
not correct.

0189		System board.
Invalid RFID configuration
information area —	The
EEPROM checksum is not
correct.

(continued)

ThinkPad A21e 41

Image 45

Contents Page Copyright IBM Corp Contents LCD FRU Important service information Before replacing partsStrategy for replacing FRUs How to use error messages Diskette compatibility matrixStrategy for replacing a hard-disk drive Safety notice Safety notices multilingual translationsSafety notice Continuation of Safety notice Safety notice Safety notice Continuation of Safety notice Safety notice Safety notice Safety notice General safety Safety informationElectrical safety Safety inspection guide Handling electrostatic discharge-sensitive devices Laser compliance statement Grounding requirementsDo not open ThinkPad A21e What to do first Read this firstFollowing are not covered under warranty Service Web site Related service informationUsing Recovery CD To create Service Partition SPPower-on password PasswordsHard-disk password Supervisor passwordHow to remove the power-on password How to remove the hard-disk passwordSelect Power-On Password Screen blank mode Power managementStandby mode Select either User HDP or Master HDPHibernation mode Related service information Checkout guide Testing the computerDiagnostics Interactive Tests Detecting system information with PC-Doctor Power system checkoutHardware Info UtilityChecking operational charging Checking the ac adapterChecking the battery pack For Lithium ion batteryFor Nickel metal hydride battery Checking the backup battery ThinkPad A21e Trademarks Product overview SpecificationsBlinking orange Status indicatorsIndicator Meaning Following table shows the test for each FRU FRU TestsFRU Fn + F3 Fn key combinationsNumeric error codes Symptom-to-FRU indexDimm IBM Bios Setup Utility Error messages Beep symptoms Intermittent problems LCD-related symptomsUndetermined problems FRU replacement noticesScrew notices Plastic to plastic Retaining serial numbersLogic card to plastic Torque driverRestoring the serial number of the system unit Retaining the UuidSelect 2. Read S/N data from Eeprom Removing and replacing a FRU Battery pack Dimm Mini PCI adapter Removing and replacing a FRU Dimm Backup batteryDo not drop or apply any shock to the hard-disk Hard-disk driveRemoving and replacing a FRU Ultrabay 2000 device ThinkPad A21e Keyboard ThinkPad A21e Connector on the underside of the key then push Keyboard CRU insulator Hinge cover Keyboard bezel and speaker Step Screw quantity Torque Speaker cable Sub card M2.5 × 4.8 mm, nylon-coated 39.2 Ncm Kgfcm PC Card slot assembly Fan assembly Removing and replacing a FRU Diskette drive Upper shield System board M2.5 × 4.8 mm, nylon-coated 39.2 Ncm Kgfcm LCD assembly ThinkPad A21e Front bezel ThinkPad A21e 12.1-in. panel Inverter card14.1-in. and 15.0-in. panels LCD panel ThinkPad A21e 2628-Jxx M2.0 × 5.7 mm 24.5 Ncm Nylon-coated Kgfcm ThinkPad A21e Locations Front view Rear view Bottom view Parts list Parts marked with asterisk are CRU customer replacable unit MB Sdram SO Dimm LCD FRU 15.0-in. XGA TFT LG Keyboard Miscellaneous parts ThinkPad A21e Optional FRUs Power cords system Common parts listTrademarks ThinkPad A21e Part Number 06P8883