IBM Thinkpad T30 Manual

FRU tests
The following table shows the test for each FRU.
FRU Applicable test
System board 1.Diagnostics-->CPU/Coprocessor
2.Diagnostics-->Systemboard
PowerDiagnostics-->Other Devices-->IBM AC
Adapter,IBM Battery 1 (IBM Battery 2)
LCD unit 1.Diagnostics-->Video Adapter
2.Interactive Tests-->Video
Modem or
Modem
daughter card1. Make sure the modem is set up correctly.
2. Replace the modem jack and the modem
card in turn, and run the following tests in
Diagnostics-->Communication:
a. Lucent Soft Modem...

FRU Applicable test
CD-ROM or
DVD drive1.Diagnostics-->Other Devices-->
CD-ROM/DVD
2.Interactive Tests-->CD-ROM/DVD Test
Memory 1. If two DIMMs are installed, remove one of
them and runDiagnostics-->Memory
Test—Quick.
2. If the problem does not recur, return the
DIMM to its place, remove the other one,
and run the test again.
3. If the test does not detect the error, run
Diagnostics-->Memory Test—Full.
Fan 1. Turn on the computer and check the air
turbulence at the louver near the PC Card
slot.
2....

Fn key combinations
The following table shows the function of each combination
of Fn with a function key.
Key
combinationDescription
Fn+F1 Reserved.
Fn+F2 Reserved.
Fn+F3 Turn off the LCD display, leaving the screen
blank. To turn the LCD display on again, press
any key or the TrackPoint stick.
Fn+F4 Put the computer in standby mode. To return to
normal operation, press the Fn key
independently, without pressing a function key.
Note:In Windows 2000 and Windows XP, this
combination of buttons functions as...

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...

Symptom or error FRU or action, in sequence
0189
Invalid RFID configuration
information area—The
EEPROM checksum is not
correct.System board.
0190
Critical low-battery error1.Charge the battery pack.
2. Battery pack.
0191
System Security—Invalid
Remote Change requested.1.Run IBM BIOS Setup
Utility, and then save
current setting by
pressing F10.
2. System board.
0192
System Security—IBM
Embedded Security hardware
tamper detected.System board.
0197
Invalid remote change
requested.The remote configuration...

Symptom or error FRU or action, in sequence
0231
System RAM error—System
RAM fails at offset nnnn.1.DIMM.
2. System board.
0232
Extended RAM
error—Extended RAM fails at
offset nnnn.1.DIMM.
2. System board.
0250
System battery error—System
battery is dead.Replace the backup battery
and run IBM BIOS Setup
Utility to reset the time and
date.
0251
System CMOS checksum
bad—Default configuration
used.Replace the backup battery
and run IBM BIOS Setup
Utility to reset the time and
date.
0252
Password checksum...

Symptom or error FRU or action, in sequence
1802
Unauthorized network card is
plugged in—Power off and
remove the miniPCI network
card.1.Remove Mini PCI network
card.
2. System board.
Error messages
Symptom or error FRU or action, in sequence
Device address conflict. 1.Load“Setup Defaults”in
IBM BIOS Setup Utility.
2. Backup battery.
3. System board.
Allocation error for device. 1.Load“Setup Defaults”in
IBM BIOS Setup Utility.
2. Backup battery.
3. System board.
Failing bits: nnnn. 1.DIMM.
2. System...

Beep symptoms
Symptom or error FRU or action, in sequence
One beep and a blank,
unreadable, or flashing LCD.1.Reseat the LCD
connector.
2. LCD assembly.
3. External CRT.
4. System board.
One long and two short beeps,
and a blank or unreadable
LCD.1.System board.
2. LCD assembly.
3. DIMM.
Two short beeps with error
codes.POST error. See“Numeric
error codes”on page 50.
Two short beeps and a blank
screen.1.System board.
2. DIMM.
Three short beeps, pause,
three more short beeps, and
one short beep.1.DIMM.
2....

LCD-related symptoms
ImportantThe TFT LCD for the notebook computer contains
many thin-film transistors (TFTs). A small number of
dots that are missing, discolored, or always lighted
is characteristic of TFT LCD technology, but
excessive pixel problems can cause viewing
concerns. The LCD should be replaced if the
number of missing, discolored, or lighted dots in any
background is:
vXGA:8 or more bright dots, 8 or more dark dots,
or a total of 9 or more bright and dark dots.
vSXGA+:11 or more bright dots,...

Intermittent problems
Intermittent system hang problems can be due to a variety
of causes that have nothing to do with a hardware defect,
such as cosmic radiation, electrostatic discharge, or
software errors. FRU replacement should be considered
only when a problem recurs.
When analyzing an intermittent problem, do the following:
1. Run the diagnostic test for the system board in loop
modeat least 10 times.
2. If no error is detected, donotreplace any FRUs.
3. If any error is detected, replace the FRU...