1.
Power
off
the
computer,
and
unplug
the
ac
adapter
from
it.
2.
Turn
the
computer
upside
down.
3.
Remove
the
battery
pack
(see
“1010
Battery
pack”
on
page
78).
4.
Remove
the
backup
battery
(see
“Checking
the
battery
pack”
on
page
48).
5.
Measure
the
voltage
of
the
backup
battery.
See
the
following
figure.
Red (+)
Black (-)
Wire
Voltage
(V
dc)
Red
+2.5
to
+3.2
Black
Ground
v
If
the
voltage
is
correct,
replace
the
system
board.
v
If
the
voltage
is
not
correct,
replace
the
backup
battery.
v
If
the
backup
battery
discharges
quickly
after
replacement,
replace
the
system
board.
Checkout
guide
General
descriptions
49
Содержание 23717GU
Страница 6: ...2 MT 2369 2370 2371 2372 2382 2386 ...
Страница 54: ...Checkout guide 50 MT 2369 2370 2371 2372 2382 2386 ...
Страница 97: ...Remove LCD module 4 4 Removing and replacing a FRU ThinkPad X40 series 93 ...
Страница 103: ...When installing Becareful to align with the 2 location notches Removing and replacing a FRU ThinkPad X40 series 99 ...
Страница 123: ...Parts list Overall 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 19 18 20 8 Parts list ThinkPad X40 series 119 ...
Страница 138: ...LCD FRUs 12 1 in XGA TFT 1 2 3 4 5 6 7 8 Parts list 134 MT 2369 2370 2371 2372 2382 2386 ...
Страница 152: ...Part Number 39T5972 1P P N 39T5972 ...