2.3 Power Supply Troubleshooting

2 Troubleshooting Procedures

Procedure 2 Error Code Check

If the power supply microprocessor detects a malfunction, the DC IN LED 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 a half second

Interval between data bits

Off for a half second

The error code begins with the least significant digit.

Example: Error code 12h (Error codes are given in hexadecimal format.)

ON

0

OFF

Start

Bit 0

1

1

Order

0

2

Read

01

34

0

5

0

6

0

7

Check 1 Convert the DC IN LED blink pattern into the hexadecimal error code and compare it to the tables below.

DC IN

Error code

Meaning

 

 

10h

AC Adaptor output voltage is more than 16.5 V.

 

 

11h

Advanced Port Replicator II output voltage is more than 16.5 V.

 

 

12h

Current from the DC power supply is more than the limit (6.05 A).

 

 

13h

Current from the DC power supply is more than the limit (0.5 A) when

 

there is no load.

14h

Current sensing IC is not normal.

 

 

Satellite Pro M10 Series Maintenance Manual (960-431)

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Toshiba M10 manual Procedure 2 Error Code Check, Error code Meaning