2.3 Power Supply Troubleshooting
2 Troubleshooting Procedures
libretto U100 Maintenance Manual (960-520)
[CONFIDENTIAL]
2-13
1R35-P1V output (P73)
Error code
Meaning
C0h
1R35-P1V voltage is over 1.62V, when the computer is powered
on/off.
C1h
1R35-P1V voltage is 0.68 V or under, when the computer is powered
on.
C2h
1R35-P1V voltage is 0.68 V or under, when the computer is booting
up.
C3h
1R35-P1V voltage is 0.68 V or over, when the computer is powered
off.
C4h
1R35-P1V voltage is 0.68 V or under, when the computer is
suspended.
1R25-P1V output (P75)
Error code
Meaning
D0h
1R25-P1V voltage is over 1.50 V, when the computer is powered
on/off.
D1h
1R25-P1V voltage is 1.063 V or under, when the computer is powered
on.
D2h
1R25-P1V voltage 1.063 V or under, when the computer is booting up.
D3h
1R25-P1V voltage is 1.063 V or over, when the computer is powered
off.
D4h
1R25-P1V voltage is 1.063 V or under, when the computer is
suspended.
2R5-B2V output (P77)
Error code
Meaning
E0h
2R5-B2V voltage is over 3.00 V, when the computer is powered on/off.
E1h
2R5-B2V voltage is 2.125 V or under, when the computer is powered
on.
E2h
2R5-B2V voltage is 2.125V or under, when the computer is booting up.
E3h
2R5-B2V voltage is 2.125 V or over, when the computer is powered
off.
E4h
2R5-B2V voltage is 2.125 V or under when the computer is
suspended.
Summary of Contents for libretto U100 Series
Page 10: ...x CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 12: ...1 Hardware Overview 1 ii CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...
Page 38: ...1 Hardware Overview 1 9 AC Adapter 1 24 CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...
Page 39: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 40: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...
Page 44: ...2 Troubleshooting Procedures 2 vi CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...
Page 113: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 114: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL libretto U100 Maintenance Manual 960 520 3 ...
Page 221: ...Chapter 4 Replacement Procedures CONFIDENTIAL ...
Page 222: ...4 Replacement Procedures 4 ii CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...
Page 226: ...4 Replacement Procedures 4 vi CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...
Page 295: ... CONFIDENTIAL Appendices ...
Page 296: ...Appendices App ii CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...
Page 304: ...Appendices App x CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...
Page 324: ...Appendices Appendix B Board Layout B 14 CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...
Page 366: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...
Page 374: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL libretto U100 Maintenance Manual 960 520 ...