Power Supply Troubleshooting; Procedure 1 Power Status Check; Procedure 1 - Toshiba Satellite U400 Maintenance Manual

2.3

Power Supply Troubleshooting

The power supply controller controls many functions and components. To determine if the
power supply is functioning properly, start with Procedure 1 and continue with the other
Procedures as instructed. The procedures described in this section are:

Procedure 1

The following LED indicates the power supply status:
Battery LED
DC IN LED
The Power Supply control displays the power supply status with the Battery LED and the DC
IN LED as listed in the tables below.
Battery icon
Lights orange
Lights blue or white
Blinks orange
(even intervals)
Blinks orange once
(at being switched on)
Doesn't light
Satellite U400/Satellite Pro U400/PORTEGE M800 Maintenance Manual
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Procedure 1: Power Status Check
Procedure 2: Error Code Check
Procedure 3: Connection Check
Procedure 4: Charging Check
Procedure 5: Replacement Check
Power Status Check
Chapter2 Troubleshooting Procedures
Table 2-1 Battery icon
Power supply status
Battery is charged and the external DC is input. It has no
relation with ON/OFF of the system power.
Battery is fully charged and the external DC is input. It has
no relation with ON/OFF of the system power.
The battery level is low while the system power is ON.
The system is driven by only a battery and the battery level
is low.
Any condition other than those above.
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