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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
.
If the resistance is not correct, replace the battery
pack. If the resistance is correct, replace the system
board.
Checking the backup battery
Do the following:
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
4. Remove the backup battery (see “Checking the battery
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
39
Summary of Contents for ThinkPad X30, ThinkPad X31 (MT 2672
Page 6: ...2 ThinkPad X30 MT 2672 2673...
Page 44: ...Checkout guide 40 ThinkPad X30 MT 2672 2673...
Page 103: ...3 4 6 5 continued Removing and replacing a FRU ThinkPad X30 99...
Page 106: ...3 4 6 9 8 7 continued Removing and replacing a FRU 102 ThinkPad X30 MT 2672 2673...
Page 128: ...LCD FRUs 12 1 in XGA TFT 1 3 6 2 4 5 7 Parts list 124 ThinkPad X30 MT 2672 2673...
Page 138: ...Part Number 24P2962 1P P N 24P2962...