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2 Troubleshooting Procedures
Satellite M300 and Satellite Pro M300 Maintenance Manual (960-Q08) 7
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 or white 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.