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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures
PORTEGE A200 Maintenance Manual (960-499) 2-9
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 Off 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.
Table 2-3 Error code
Error code Location
1*h DC power supply (AC adapter)
2*h Main battery
4*h S3V output
5*h 1R5-C1V output
6*h 1R8-C1V output
7*h PPV output
8*h PTV output
9*h E5V output
A*h E3V output
B*h PPV output
C*h 1R35-P1V output
D*h 1R25-P1V output
E*h 2R5-B2V output