Power Supply Troubleshooting; Procedure 1 Power Status Check; Procedure 1 - Toshiba Satellite L640 Maintenance Manual

Chapter 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: Connection Check
Procedure 3: Charging
Procedure 4: 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 th
IN LED as listed in the tables below.
Battery icon
Lights orange
Lights blue
Blinks orange
(even intervals)
Blinks orange once
(at being switched on)
Doesn't light
Satellite L600/L640/L645, Satellite Pro L600/Pro L640/Pro L645 Maintenance Manual (960-Q08)
Check
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.
Table 2-3-1 Battery icon
e DC