Toshiba T2000 Maintenance Manual page 25

If the DC IN indicator problem still exists, perform Procedure 3.
2. The indicator labeled Battery lights yellow (while the system is charging the battery) or
lights green (when the battery pack is fully charged) if power is supplied from the AC
adapter when you connect the battery pack to the system and the system is off.
NOTE: The system automatically stops charging the battery when the battery pack
overheats.
If only the battery pack is connected to the system, this indicator does not light (indicating
the battery pack is in use, or the battery pack is not in use when the AC adapter is con-
nected) or blinks red (indicating the battery is low). If the battery pack is completely
discharged, this indicator does not light.
(1) If the battery indicator blinks or does not glow when you connect the AC adapter to
the system and the system is off, see Check 3.
(2) If the battery indicator blinks when you disconnect the AC adapter from the system,
see Check 6.
NOTE: If both (1) and (2) above occur, check the power output circuits to the system.
Check 3 Make sure the battery pack is correctly connected to the system. If the problem still
exists, perform Check 4.
Check 4 Connect the AC adapter to the system and wait 30 minutes or so. If the problem still
exists, perform Check 5.
Check 5 Replace the battery pack with a recharged battery pack. If the problem still exists,
perform Procedure 2. Also, check the battery charge circuits.
Check 6 Make sure the battery pack is correctly connected to the system. If the problem still
exists, perform Check 7.
Check 7 Replace the battery pack with a known good one. If the problem still exists, perform
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