2
3
4
5(-)
1(+)
Terminal
Voltage
(V
dc)
1
+
0
to
+
16.8
5
Ground
(−)
3.
If
the
voltage
is
less
than
+14.4
V
dc,
the
battery
pack
has
been
discharged.
Note:
Recharging
will
take
at
least
3
hours,
even
if
the
indicator
does
not
turn
on.
If
the
voltage
is
still
less
than
+14.4
V
dc
after
recharging,
replace
the
battery.
4.
If
the
voltage
is
more
than
+14.4
V
dc,
measure
the
resistance
between
battery
terminals
4
and
5.
The
resistance
must
be
4
to
30
K
.
If
the
resistance
is
not
correct,
replace
the
battery
pack.
If
the
resistance
is
correct,
replace
the
system
board.
For
machine
type
2684,
2685
To
check
the
battery
pack,
do
the
following:
1.
Power
off
the
computer.
2.
Remove
the
battery
pack
and
measure
the
voltage
between
battery
terminals
1
(+)
and
5
(−).
See
the
following
figure:
2
3
4
5(-)
1(+)
Terminal
Voltage
(V
dc)
1
+
0
to
+
12.6
5
Ground
(−)
3.
If
the
voltage
is
less
than
+11.0
V
dc,
the
battery
pack
has
been
discharged.
Note:
Recharging
will
take
at
least
3
hours,
even
if
the
indicator
does
not
turn
on.
If
the
voltage
is
still
less
than
+11.0
V
dc
after
recharging,
replace
the
battery.
4.
If
the
voltage
is
more
than
+11.0
V
dc,
measure
the
resistance
between
battery
terminals
4
and
5.
The
resistance
must
be
4
to
30
K
.
Checkout
guide
General
descriptions
41
Содержание ThinkPad R40 2681
Страница 6: ...2 ThinkPad R40...
Страница 88: ...3 Removing and replacing a FRU 84 ThinkPad R40...
Страница 93: ...Modem daughter card MDC 3 4 5 continued Removing and replacing a FRU ThinkPad R40 89...
Страница 105: ...7 7 Removing and replacing a FRU ThinkPad R40 101...
Страница 109: ...Remove the keyboard bezel in the direction of arrow 2 2 2 Removing and replacing a FRU ThinkPad R40 105...
Страница 111: ...Remove the keyboard bezel in the direction of arrow 2 2 2 Removing and replacing a FRU ThinkPad R40 107...
Страница 132: ...5 6 7 8 10 11 12 13 14 9 1 2 3 4 15 16 Locations 128 ThinkPad R40...
Страница 165: ...LCD FRUs 1 2 3 4 5 Parts list ThinkPad R40 161...
Страница 183: ...Notices ThinkPad R40 179...
Страница 184: ...Part Number 13N6183 Printed in Korea 1P P N 13N6183...