Power Supply Troubleshooting - Toshiba M500 ST5405 - Satellite - Core 2 Duo 2.13 GHz Maintenance Manual

2.3 Power Supply Troubleshooting

2.3 Power Supply Troubleshooting
The power supply 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: Icons in the LCD Check
Procedure 2: Error Code Check
Procedure 3: Connection Check
Procedure 4: Charge Check
Procedure 5: Replacement Check
Procedure 1 Icons in the LCD Check
The following Icons in the LCD indicate the power supply status:
Battery icon
DC IN icon
The Power Supply Controller (PSC) displays the power supply status through the Battery
icon and the DC IN icon in the LCD as listed in the tables below. To check the power supply
status, install a battery pack and connect an AC adaptor.
Battery icon
Lights orange
Lights Blue
Blinks orange
(even intervals)
Blinks orange once
(at being switched on)
Doesn't light
PORTÉGÉ M500 Maintenance Manual (960-559)
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.
2 Troubleshooting Procedures
[CONFIDENTIAL] 2-7