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
58.
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.
System
board
One
short
beep,
pause,
three
short
beeps,
pause,
three
more
short
beeps,
and
one
short
beep.
Only
the
cursor
appears.
Reinstall
the
operating
system
.
Four
cycles
of
four
short
beeps
and
a
blank
screen.
System
board
(IBM
security
chip)
Five
short
beeps
and
a
blank
screen.
System
board
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
.
The
DOS
full
screen
looks
smaller
than
it
should.
Start
the
ThinkPad
Configuration
program
and
set
the
Screen
expansion
function.
Symptom-to-FRU
index
64
MT
2668/2669/2686/2687
Summary of Contents for THINKPAD T43 -
Page 6: ...vi MT 2668 2669 2686 2687...
Page 8: ...2 MT 2668 2669 2686 2687...
Page 155: ...5 4 Removing and replacing a FRU ThinkPad T43 T43p Series 149...
Page 157: ...3 2 Removing and replacing a FRU ThinkPad T43 T43p Series 151...
Page 172: ...b 4 4 c 5 5 continued Removing and replacing a FRU 166 MT 2668 2669 2686 2687...
Page 187: ...1 2 3 4 5 6 7 8 9 16 10 12 13 14 15 19 17 18 11 Locations ThinkPad T43 T43p Series 181...
Page 206: ...14 1 in LCD FRUs 1 b a 2 c d e 3 6 7 8 5 4 Parts list 200 MT 2668 2669 2686 2687...
Page 211: ...15 0 in LCD FRUs 1 2 5 3 6 7 8 4 Parts list ThinkPad T43 T43p Series 205...
Page 231: ...Notices ThinkPad T43 T43p Series 225...
Page 232: ...Part Number 27R0700 1P P N 27R0700...