Replace the system board.
If the problem is not corrected, go to “Undetermined
Problems” on page 46.
If the voltage is not correct, go to the next step.
Note: An audible noise from the AC Adapter does not
always indicate a defect.
Checking Operational Charging:
To check
operational charging, use a discharged battery pack or a
battery pack that has less than 50% of the total power
remaining when installed in the computer.
Perform operational charging. If the battery status
indicator does not turn on, remove the battery pack and let
it return to room temperature. Reinstall the battery pack.
If the charge indicator still does not turn on, replace the
battery pack.
If the charge indicator still does not turn on, replace the
DC/DC card. Then reinstall the battery pack. If the
reinstalled battery pack is not charged, go to the next
section.
Checking the Battery Pack:
Battery charging will
not start until the Fuel-Gauge shows that less than 95% of
the total power remains; with this condition the battery
pack will charge to 100% of its capacity. This protects the
battery pack from being overcharged or having a
shortened life.
Do the following:
1. Power off the computer.
2. Remove the battery pack and measure the voltage
between battery terminals 1 (
+
) and 4 (
−
). See the
following figure:
3. If the voltage is less than
+
11.0 V dc, the battery pack
has been discharged. Recharge the battery pack.
In this case, the battery pack is over-discharged. It
takes at least 2 hours to recharge the battery pack
even if the indicator does not turn on.
If the voltage is still less than
+
11.0 V dc after
recharging, replace the battery.
ThinkPad 560X (2640-60x, 70x)
31
Summary of Contents for ThinkPad 560X
Page 2: ......
Page 8: ...vi IBM ThinkPad 560X 2640 60x 70x HMM...
Page 10: ...viii IBM ThinkPad 560X 2640 60x 70x HMM...
Page 28: ...18 IBM ThinkPad 560X 2640 60x 70x HMM...
Page 72: ...1030 Battery Pack Turn the computer upside down 62 IBM ThinkPad 560X 2640 60x 70x HMM...
Page 74: ...64 IBM ThinkPad 560X 2640 60x 70x HMM...
Page 92: ...82 IBM ThinkPad 560X 2640 60x 70x HMM...
Page 94: ...84 IBM ThinkPad 560X 2640 60x 70x HMM...
Page 98: ...Parts Listing 560X 2640 60x 70x 88 IBM ThinkPad 560X 2640 60x 70x HMM...
Page 110: ...IBM Part Number 05L1768 Printed in U S A S 5L 1768...