Toshiba T2000 Maintenance Manual page 24

problem still exists, perform Procedure 3.
Status
1h
2h
3h
4h
5h
6h
7h
8h
9h
Ah
Bh
Ch
Dh
Eh
Fh
Check 2 When the DC IN indicator does not light, one or all of the following could be the
cause:
1. The AC adapter is damaged. Replace the AC adapter.
2. Fuse (F701) on the system board is bad. Replace the fuse.
3. The charge/+18V switching signal is not sent correctly.
4. The AC adapter detecting circuit is damaged. Replace the AC adapter.
2-10
Table 2-1 Power supply error status
Meaning
Over voltage of AC adapter output voltage. (More than
+18V±5%)
Abnormal temperature in the system. (Less than -20°C or
more than 70°C.)
Abnormal charging. (The system cannot stop charging.)
Over current of charging current.
Abnormal charging voltage.
Abnormal battery voltage.
Abnormal VCC (+5) voltage.
Abnormal RAMV (+5V for DRAM) voltage.
VEE (-9V) is shorted.
VDD (+12V) is shorted.
VDSP (+12V to +18V for FL) is shorted.
Turned off the Desk Station II before turning off the
T2000.
Battery terminal is shorted.
Under voltage of AC adapter output voltage. (Less than
+18V±5%)
Under current of charging current.