2 Troubleshooting Procedures

2.3 Power Supply Troubleshooting

 

‰ 1R8-B1V output

 

 

 

 

 

 

 

 

 

Error code

 

Meaning

 

 

 

 

 

 

C0h

1R8-B1V voltage is over 2.16V when the computer is powered on/off.

 

 

 

 

 

 

C1h

1R8-B1V voltage is under 1.53V when the computer is powered on.

 

 

 

 

 

 

C2h

1R8-B1V voltage is under 1.53V when the computer is booting up.

 

 

 

 

 

 

C4h

1R8-B1V voltage is under 1.53V when BV power is maintained.

 

 

 

 

 

 

‰ PPV output

 

 

 

 

 

 

 

 

 

Error code

 

Meaning

 

 

 

 

 

 

D0h

PPV voltage is over 1.80V when the computer is powered on/off.

 

 

 

 

 

 

D1h

PPV voltage is under 0.32V when the computer is powered on.

 

 

 

 

 

 

D2h

PPV voltage is under 0.32V when the computer is booting up.

 

 

 

 

 

 

‰ PTV output

 

 

 

 

 

 

 

 

 

Error code

 

Meaning

 

 

 

 

 

 

E0h

PTV voltage is over 1.26V when the computer is powered on/off.

 

 

 

 

 

 

E1h

PTV voltage is under 0.89V when the computer is powered on.

 

 

 

 

 

 

E2h

PTV voltage is under 0.89V when the computer is booting up.

 

 

 

 

 

 

‰ Miscellaneous

 

 

 

 

 

 

 

 

 

Error code

 

Meaning

 

 

 

 

 

 

F0h

The sub clock does not oscillate.

 

 

 

 

 

 

2-14

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PORTÉGÉ M500 Maintenance Manual (960-559)

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Toshiba SATELLITE U200 manual ‰ Miscellaneous