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.)
On
Re ad
Off
1 0 0 0 1 0 0 0
Start D0 D1 D2 D3 D4 D5 D6 D7
Order
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.
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 4.95A.
13h Current from the DC power supply is over 0.5A when there is no load.
14h Abnormal current has been sensed 0[A].
Main Battery
Error code Meaning
20h Over voltage is detected.
21h Main battery charge current is over 4.95A.
22h Main battery discharge current is over 0.5A when there is no load.
23h Main battery charge current is over 2.3A.
24h Abnormal current has been sensed 0[A].
25h Main battery charge current is over 0.3A.
PORTEGE R100 Maintenance Manual (960-440) 2-9