Toshiba M10 User Manual

Page 55

Advertising
background image

2.3 Power Supply Troubleshooting

2 Troubleshooting Procedures

Satellite Pro M10 Series Maintenance Manual (960-431)

2-9

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

OFF

0

0

0

0

0

0

1

1

Start

Bit 0

1

2

3

4

5

6

7

Read

Order

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.

Advertising