Toshiba PORTEGE M780 Maintenance Manual page 61

 With no error surveillance
Error code
A0h
A1h
A2h
 1R5-B1V output
Error code
B0h
B1h
B2h
B3h
 1R05M-E1V output
Error code
C0h
C1h
C2h
 PTV output
Error code
D0h
D1h
D2h
PORTEGE M780 Maintenance Manual (960-809)
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Meaning
voltage is over 5.00V.
voltage is under 0.00V when the computer is powered on.
voltage is under 0.00V when the computer is booting up.
Meaning
1R5-B1V voltage is over 1.80V.
1R5-B1V voltage is under 1.28V when the computer is powered on.
1R5-B1V voltage is under 1.28V when the computer is booting up.
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.
Meaning
1R05M-E1V voltage is over 1.26V.
1R05M-E1V voltage is under 0.00V when the computer is powered on.
1R05M-E1V voltage is under 0.00V when the computer is booting up.
Meaning
PTV voltage is over 1.26V.
PTV voltage is under 0.00V when the computer is powered on.
PTV voltage is under 0.55V when the computer is booting up.
Troubleshooting Procedures
[CONFIDENTIAL] 2-19