Toshiba PORTEGE M400 User Manual

Page 55

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2.3 Power Supply Troubleshooting

2 Troubleshooting

Procedure 1

Power Supply Icon Check

The following two icons indicate the power supply status:

‰ Battery icon

‰ DC IN icon

The power supply controller uses the power supply status with the Battery icon and the DC IN
icon as listed in the tables below.

Table 2-1 Battery icon

Battery icon

Power supply status

Lights orange

Battery is charged and the external DC is input. It has no relation
with ON/OFF of the system power.

Lights green

Battery is fully charged and the external DC is input. It has no
relation with ON/OFF of the system power.

Blinks orange
(even intervals)

The battery level is low while the system power is ON.

Flashes orange
(at being switched on)

The battery level is low and the power is turned on only with the
battery.

Doesn’t light

Any condition other than those above.

Table 2-2 DC IN icon

DC IN icon

Power supply status

Lights green

DC power is being supplied from the AC adapter.

Blinks orange

Power supply malfunction

* 1

Doesn’t light

Any condition other than those above.

*1 When the power supply controller detects a malfunction, the DC IN icon blinks

orange. It shows an error code.

PORTEGE M400 Maintenance Manual (960-541)

[CONFIDENTIAL]

2-7

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