Toshiba Satellite Pro U300 Maintenance Manual - Page 60

Power Supply Troubleshooting, Procedure 1, Power Status Check

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2 Troubleshooting Procedures 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: Power Status Check Procedure 2: Error Code Check Procedure 3: Connection Check Procedure 4: Charging Check Procedure 5: Replacement Check Procedure 1 Power Status Check 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. Table 2-1 Battery icon Battery icon Lights orange Lights blue Blinks orange (even intervals) Blinks orange once (at being switched on) Doesn't light 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. 8 Manual(960-Q08) Satellite U300 and Satellite Pro U300 Maintenance

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2 Troubleshooting Procedures
8
Satellite U300 and Satellite Pro U300
Maintenance
Manual(960-Q08)
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:
Power Status Check
Procedure 2:
Error Code Check
Procedure 3:
Connection Check
Procedure 4:
Charging Check
Procedure 5:
Replacement Check
Procedure 1
Power Status Check
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.
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 blue
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.
Blinks orange once
(at being switched on)
The system is driven by only a battery and the battery level
is low.
Doesn’t light
Any condition other than those above.