2 Troubleshooting Procedures

2.3 Power Supply Troubleshooting

‰ PPV output

 

 

 

 

 

 

 

 

 

Error code

 

Meaning

 

 

 

 

 

 

90h

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

 

 

 

 

 

 

91h

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

 

 

 

 

 

 

92h

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

 

 

 

 

 

 

‰ PTV output

 

 

 

 

 

 

 

 

Error code

 

Meaning

 

 

 

 

 

 

A0h

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

 

 

 

 

 

 

A1h

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

 

 

 

 

 

 

A2h

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

 

 

 

 

 

 

‰1R5-E1V output

Error code

Meaning

 

 

B0h

1R5-E1V voltage is over 1.80V when the computer is powered on/off.

 

 

B1h

1R5-E1V voltage is under 1.275V when the computer is powered on.

 

 

B2h

1R5-E1V voltage is under 1.275V when the computer is booting up.

 

 

B4h

1R5-E1V voltage is under 1.275V when EV power is maintained and

 

OUTV7=EV is designated.

‰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 and

 

OUTV8=BV is designated.

‰ 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.

 

 

2-10

[CONFIDENTIAL]

PORTEGE R500 Maintenance Manual (960-634)

Page 56
Image 56
Toshiba r500 manual ‰ PPV output