Troubleshooting Procedures

With no error surveillance

Error code

Meaning

 

 

A0h

voltage is over 5.00V.

 

 

A1h

voltage is under 0.00V when the computer is powered on.

 

 

A2h

voltage is under 0.00V when the computer is booting up.

 

 

1R5-B1V output

Error code

Meaning

 

 

B0h

1R5-B1V voltage is over 1.80V.

 

 

B1h

1R5-B1V voltage is under 1.28V when the computer is powered on.

 

 

B2h

1R5-B1V voltage is under 1.28V when the computer is booting up.

 

 

B3h

1R5-B1V power supply showed the normal range at the time of BV power supply

 

stop.

 

(Although the power supply should be Off(ed), power supply voltage was detected)

 

However, it restricts to the time when the "OUTV7 power-supply =BV power supply"

 

was specified.

 

 

1R05M-E1V output

Error code

Meaning

 

 

C0h

1R05M-E1V voltage is over 1.26V.

 

 

C1h

1R05M-E1V voltage is under 0.00V when the computer is powered on.

 

 

C2h

1R05M-E1V voltage is under 0.00V when the computer is booting up.

 

 

PTV output

Error code

Meaning

 

 

D0h

PTV voltage is over 1.26V.

 

 

D1h

PTV voltage is under 0.00V when the computer is powered on.

 

 

D2h

PTV voltage is under 0.55V when the computer is booting up.

 

 

PORTEGE M780 Maintenance Manual (960-809)

[CONFIDENTIAL]

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Toshiba 960-809 manual  With no error surveillance