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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting
2-12 PORTEGE A100 Maintenance Manual (960-460)
q E5V output (CH0)
Error code Meaning
90h E5V voltage is over 6.00V when the computer is powered on/off.
91h E5V voltage is 4.50V or less when the computer is powered on.
92h E5V voltage is 4.50V or less when the computer is booting up.
93h E5V voltage is 4.50V or more when the computer is powered off.
94h E5V voltage is 4.50V or less while the computer is suspended.
q E3V output (CH0)
Error code Meaning
A0h E3V voltage is over 3.96V when the computer is powered on/off.
A1h E3V voltage is 2.81V or less when the computer is powered on.
A2h E3V voltage is 2.81V or less when the computer is booting up.
A3h E3V voltage is over 2.81V when the computer is powered off.
A4h E3V voltage is 2.81V or less while the computer is suspended.
q 1R2-P1V output (CH1)
Error code Meaning
B0h 1R2-P1V voltage is over 1.44V when the computer is powered on/off.
B1h 1R2-P1V voltage is 1.02V or less when the computer is powered on.
B2h 1R2-P1V voltage is 1.02V or less when the computer is booting up.
B3h 1R2-P1V voltage is 1.02V or more when the computer is powered off.
B4h 1R2-P1V voltage is 1.02V or less while the computer is suspended.
q PTV output (CH1)
Error code Meaning
C0h PTV voltage is over 1.26V when the computer is powered on/off.
C1h PTV voltage is 0.89V or less when the computer is powered on.
C2h PTV voltage is 0.89V or less when the computer is booting up.
C3h PTV voltage is 0.89V or more when the computer is powered off.
C4h PTV voltage is 0.89V or less while the computer is suspended.