Lenovo ThinkPad Edge E530, Руководство по техническому обслуживанию аппаратной части

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Table 2. Numeric error codes (continued)
Symptom or error (beeps, if any) FRU or action, in sequence
0251
System CMOS checksum bad - Default configuration
used.
(two short beeps)
1. Charge the backup battery for more than 8 hours
by connecting the ac power adapter.
2. Replace the backup battery and run the ThinkPad
Setup program to reset the time and date.
0271
Date and time error - Neither the date nor the time is set
in the computer.
(two short beeps)
Run the ThinkPad Setup program to reset the time
and date.
1802
Unauthorized network card is plugged in - Turn off and
remove the miniPCI network card.
(two short beeps)
1. Remove the Mini PCI network card.
2. System board.
Error messages
Table 3. Error messages
Symptom or error (beeps, if any) FRU or action, in sequence
Fan error.
(four short beeps, one long beep) 1. Fan .
2. Thermal grease.
3. System board.
This system does not support batteries that are not
genuine Lenovo-made or authorized. The system will
continue to boot, but may not charge unauthorized
batteries.
Attention: Lenovo has no responsibility for the
performance or safety of unauthorized batteries, and
provides no warranties for failures or damage arising out
of their use.
Replace the battery.
No-beep symptoms
Table 4. No-beep symptoms
Symptom or error FRU or action, in sequence
No beep, power-on indicator on, LCD blank, and no
POST.
1. Make sure that every connector is connected
tightly and correctly
.
2. DIMM.
3. System board.
No beep, power-on indicator on, and LCD blank during
POST.
1. Reseat DIMM .
2. System board.
The power-on password prompt appears. A power-on password or a supervisor password is set.
Type the password and press
Enter .
The hard-disk password prompt appears. A hard-disk password is set. Type the password and
press
Enter .
LCD-related symptoms
Important: The TFT LCD for the notebook computer contains many thin-film transistors (TFTs). The
presence of 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.
Chapter 4
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Related service information
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