Error
Code
Message FRU/Action in Sequence
072 CMOS
Checksum
Error 1
Enter BIOS Utility and
execute "Load Setup
Default Settings"; then
reboot the system.
110 Incorrect
Password
Specified.
System Halted
1
Set SWZ1 Pin 6
(Check Password) to
"0".
Enter BIOS Utility and
clear password.
Set SWZ1 Pin 6
(Check Password) to
"1".
252 VPD
Checksum
Error
Run CE Utility.
Input correct data.
Operating
system not
found
Boot from system diskette.
LCD-Related Symptoms
LCD FRU Replacement Notice
The TFT LCD for the computer contains many thin-film
transistors (TFTs). A small number of missing, discol-
ored, or lighted dots (on all the time) 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:
SVGA (12.1"): 5 or more bright dots, 5 or more
dark dots, or a total of 9 or more bright and dark
dots.
XGA (14.1"/15.0"): 8 or more bright dots, 8 or
more dark dots, or a total of 9 or more bright and
dark dots.
Symptom/Error FRU/Action in Sequence
LCD backlight does
not work.
LCD is too dark.
LCD brightness
cannot be adjusted.
LCD contrast cannot
be adjusted (HPA
LCD models only).
Keyboard (if contrast and
brightness function keys do
not work)
Reseat LCD connector
Check LCD inverter ID
LCD FPC ASM
LCD inverter
LCD
System board
34 ThinkPad i Series 1400/1500 HMM
