Symptom-to-FRU index
The symptom-to-FRU index 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 ser-
vicing, 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 40.
Note: For an IBM devices 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
Bad CRC1, stop POST task.
The EEPROM checksum is
not correct.
1. System board.
0187
EAIA data access error
1. System board.
0190
Critical low battery error.
1. Critical low battery
error. Charge the
battery pack.
2. Battery pack.
0193
RF antenna has been
removed.
1. Enter the supervisor
password.
0194The computer has
been carried through a
security gate.
1. Enter the supervisor
password.
0200Fixed disk failure
1. Reseat the hard disk
drive.
2. Load Setup Defaults in
IBM BIOS Setup Utility.
3. Hard disk drive.
4. System board.
36
ThinkPad X20
Summary of Contents for ThinkPad X20
Page 1: ...IBM Mobile Systems ThinkPad X20 Series computer Hardware Maintenance Manual June 2000 ...
Page 2: ...IBM Mobile Systems ThinkPad X20 Series computer Hardware Maintenance Manual June 2000 IBM ...
Page 3: ...i ...
Page 36: ...30 ThinkPad X20 ...
Page 58: ...1060 Mini PCI adapter Battery pack 1010 Keyboard assembly 1050 6 52 ThinkPad X20 ...
Page 60: ...1080 LCD assembly Battery pack 1010 Keyboard assembly 1050 1 ThinkP ad 2 54 ThinkPad X20 ...
Page 69: ...Step Screw quantity Torque 1 M2 3 5mm 2 BK 19 6 Ncm 2 kgfcm ThinkPad X20 63 ...
Page 71: ...1 Step Screw quantity Torque 1 M2 3 5mm 2 BK 19 6 Ncm 2 kgfcm ThinkPad X20 65 ...
Page 84: ...78 ThinkPad X20 ...
Page 86: ...IBM Part Number 19K6850 Printed in U S A 19K685ð ...