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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures
PORTEGE A100 Maintenance Manual (960-460) 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.
q Start Off for 2 seconds
q 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.)
On
Off
1
0
0
0
1 0
0 0
Start
Read
Order
D0
D1 D2
D3
D4
D5
D6
D7
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.
q DC power supply (AC adapter)
Error code Meaning
10h AC Adapter output voltage is over 16.5V.
11h Commondock output voltage is over 16.5V.
12h Current from the DC power supply is over 6.05A.
13h Current from the DC power supply is over 0.5A when there is no load.
14h Abnormal current has been sensed 0[A].