Toshiba PORTEGE M400 User Manual
Page 57
2.3 Power Supply Troubleshooting
2 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
Off
for
2
seconds
Error code (8 bit)
“1”
On
for
one
second
“0”
On
for
half
second
Interval between data bits
On
for
half
second
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
Power supply of error detected
1*h AC
Adapter
2*h
1
st
battery
3*h 2
nd
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)
PORTEGE M400 Maintenance Manual (960-541)
[CONFIDENTIAL]
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