Toshiba T-Series T3300sl, Руководство по обслуживанию

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2-9
Procedure 2 Battery Indicator Function Check
When a power supply problem occurs, the Battery indicator shows the 4-bit status by blinking at
various speeds corresponding to the type of problem.
The battery indicator lights for two seconds at first, and then blinks on for one second (indicating a
binary 1) or a half second (indicating a binary 0) at half-second intervals from bit 0 to bit 3 sequen-
tially.
For example, the following timing chart shows the error status 5h (0101). Read the timing chart
from right to left to determine the correct hexadecimal value.
The power supply error statuses and their meanings are described in Table 2-1.
When the
Battery
indicator blinks at random, the AC adapter or charging circuit may be damaged.
In this case, replace the AC adapter with a new one.
Table 2-1 Power supply error statuses
Bit 0 Bit 1 Bit 2 Bit 3
1 0 1 0
Battery
ON
OFF
2s 1s 0.5s 1s 0.5s
0.5s 0.5s 0.5s
➝
Time
Status Meaning
1h Over voltage of AC adapter output voltage (more than +18V±5%)
2h Abnormal temperature in the system (less than -20°C or more than 70°C)
3h Abnormal charging (The system cannot stop charging.)
4h Over current of charging current
5h Abnormal charging voltage
6h Abnormal battery voltage
7h Abnormal VCC (+5) voltage
8h Abnormal RAMV (+5V for DRAM) voltage
9h VEE (-9V) is shorted
Ah VDD (+12V) is shorted
Bh DSPV (+12V to +18V for FL) is shorted
Ch Desk Station IV was turned off before the T3300SL
Dh Battery terminal is shorted
Eh Under voltage of AC adapter output voltage (less than +18V±5%)
Fh Under current of charging current