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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
38
ThinkPad A30, A30p (MT 2652/2653/2654)
Содержание THINKPAD A30
Страница 4: ...iv ThinkPad A30 A30p MT 2652 2653 2654 ...
Страница 28: ...Laser compliance statement 22 ThinkPad A30 A30p MT 2652 2653 2654 ...
Страница 109: ...3 3 Removing and replacing a FRU ThinkPad A30 A30p 103 ...
Страница 139: ...v Make sure that the release button works correctly Removing and replacing a FRU ThinkPad A30 A30p 133 ...
Страница 141: ...1 2 4 5 6 7 8 9 10 11 12 13 15 14 16 3 Locations ThinkPad A30 A30p 135 ...
Страница 163: ...Notices ThinkPad A30 A30p 157 ...
Страница 164: ... Part Number 24P2916 1P P N 24P2916 ...