Toshiba PORTEGE M400 Maintenance Manual page 151

2.3 Power Supply Troubleshooting
Procedure 2 Error Code Check
If the power supply microprocessor detects a malfunction, the DC IN icon blinks orange. The
blink pattern indicates an error as shown below.
Start
Error code (8 bit)
"1"
"0"
Interval between data bits
The error code begins with LSB (Least Significant bit)
Example: Error code 11h (Error codes are given in hexadecimal format.)
Check 1 Convert the DC IN icon blink pattern into the hexadecimal error code and
compare it to the tables below. Then go to Check 2.
Error code
Error code
PORTEGE M400 Maintenance Manual (960-541)
Power supply of error detected
1*h AC Adapter
st
2*h
1 battery
nd
3*h 2 battery
4*h S3V output (P60)
5*h E5V output (P61)
6*h E3V output (P62)
7*h 1R5-E1V output (P63_CH0)
8*h 1R-8-B1V output (P64_CH0)
9*h PPV output (P65_CH0)
A*h PTV output (P66_CH0)
B*h 1R5-E1V output (P63_CH1)
C*h 1R8-B1V output (P64_CH1)
D*h PPV output (P65_CH1)
E*h PTV output (P66_CH1)
[CONFIDENTIAL]
2 Troubleshooting
Off for 2 seconds
On for one second
On for half second
On for half second
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