Toshiba PORTEGE M400 User Manual
Page 60
2 Troubleshooting
2.3 Power Supply Troubleshooting
2-12
[CONFIDENTIAL]
PORTEGE M400 Maintenance Manual (960-541)
PPV output (P65_CH0)
Error code
Meaning
90h
PPV voltage is over 1.80V.
91h
PPV voltage is 0.32V or less when the computer is powered on.
92h
PPV voltage is 0.32V or less at booting up.
PTV output (P66_CH0)
Error code
Meaning
A0h
PTV voltage is over 1.32V.
A1h
PTV voltage is 0.85V or less when the computer is powered on.
A2h
PTV voltage is 0.85V or less at booting up.
1R5-E1V output (P63_CH1)
Error code
Meaning
B0h
1R5-E1V voltage is over 1.80V.
B1h
1R5-E1V voltage is 1.275V or less when the computer is powered on.
B2h
1R5-E1V voltage is 1.275V or less at booting up.
B4h
1R5-E1V voltage is 1.275V or more when EV power is maintained and
“OUTV7 power = EV power” is specified.
1R8-B1V output (P64_CH1)
Error code
Meaning
C0h
1R8-B1V voltage is over 2.16V.
C1h
1R8-B1V voltage is 1.53V or less when the computer is powered on.
C2h
1R8-B1V voltage is 1.53V or less at booting up.
C4h
1R8-B1V voltage is 1.53V or more when BV power is maintained and
“OUTV8 power = BV power” is specified.