Toshiba M645-S4080 Maintenance Manual page 42

2 Troubleshooting Procedures
as instructed. The flowchart in Figure 2-2 gives a summary of the process. The procedures
described in this section are:
Procedure 1: Power status check
Procedure 2: Adaptor / battery replacement
Procedure 3: Power supply connection check
Procedure 4: Diagnostic check
Procedure 5: Internal connection check
Procedure 1
The following LEDS indicate the power supply status:
Battery LED
DC-IN LED
The power supply controller displays the power supply status through the Battery and the DC-
IN LEDS as listed in the tables below.
Battery State
Charging
Discharging
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Power Status Check
Table 2-1 Battery LED
LED colors
Amber, solid on
White, solid on
Amber, blinking
(LED on for 1 second
every 4 seconds)
Amber, blinking
(LED on for 1 second
every 2 seconds)
Amber color off
Definition
Battery charging with AC.
Battery fully charged by AC
Battery abnormal stop charging with AC (Bad cell/
Overheated)
Battery within low state: 12 minutes remaining
Battery within critical low state: 3 minutes
remaining. The system is protected and cannot be
re-powered on without the AC power connected.
Battery not in low or critical low state; It's in
discharging state
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