IBM ThinkPad T20 Hardware Maintenance Manual page 52

Symptom or error
0190
Critical low battery error.
0193
RF antenna has been removed.
0194
The computer has been carried
through a security gate.
0195
Security hardware tamper
detected.
0196
Security hardware removed.
0197
Invalid Remote change
requested.
01C9
More than one Ethernet devices
are found — Remove one of
them. Press <Esc> to continue.
0200
Hard disk error — The hard
disk is not working.
021x
Stuck key — Keyboard error.
0220
Monitor type error — Monitor
type does not match the one
specified in CMOS.
(continued)
48
ThinkPad T20, T21, T22, T23 (MT 2647/2648)
Symptom-to-FRU index
FRU or action, in sequence
1. Charge the battery pack.
2. Battery pack.
Enter the supervisor
password.
Enter the supervisor
password.
1. Enter IBM BIOS Setup
Utility by entering
supervisor password, and
select Password --> IBM
Security Chip --> Clear
IBM Security Chip to clear
this error.
2. Security Chip.
3. System board.
1. Enter IBM BIOS Setup
Utility by entering
supervisor password, and
select "Password" -->
"IBM Security Chip" -->
"Clear IBM Security Chip"
to clear this error.
2. Security Chip.
3. System board.
The remote configuration for
the security chip has failed.
Confirm the operation and try
again.
1. Remove either a Mini PCI
Ethernet card or an
Ethernet daughter card,
otherwise press Esc key
to ignore the warning
message.
2. System board.
1. Reseat the hard-disk
drive.
2. Load Setup Defaults in IBM
BIOS Setup Utility.
3. Hard-disk drive.
4. System board.
Run interactive tests of the
keyboard and the auxiliary
input device.
Load Setup Defaults in IBM
BIOS Setup Utility.