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Toshiba PORTEGE M400 User Manual

Page 60

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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.