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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures
Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-11
PPV output (P65)
Error code Meaning
90h PPV voltage is over 1.80V when the computer is powered on/off.
91h PPV voltage is 0.56V or less when the computer is powered on.
92h PPV voltage is 0.56V or less when the computer is booting up.
93h PPV voltage is over 0.56V when the computer is powered off. (PV
power is off)
PTV output (P66)
Error code Meaning
A0h PTV voltage is over 1.26V when the computer is powered on/off.
A1h PTV voltage is 0.89V or less when the computer is powered on.
A2h PTV voltage is 0.89V or less when the computer is booting up.
A3h PTV voltage is over 0.89V or more when the computer is powered off.
(PV power is off)
1R5-E1V output (P63: MUX_CH1)
Error code Meaning
B0h 1R5-E1V voltage is over 1.80V when the computer is powered on/off.
B1h 1R5-E1V voltage is 1.275V or less when the computer is powered on.
B2h 1R5-E1V voltage is 1.275V or less when the computer is booting up.
B3h 1R5-E1V voltage is over 1.275V when the computer is powered off.
(EV power is off)
B4h 1R5-E1V voltage is 1.275V or less when the computer is powered off.
(EV power is on)
PTV output (P73)
Error code Meaning
C0h PTV voltage is over 1.63V when the computer is powered on/off.
C1h PTV voltage is 0.68V or less when the computer is powered on.
C2h PTV voltage is 0.68V or less when the computer is booting up.
C3h PTV voltage is over 0.68V when the computer is powered off.
(BV power is on)
C4h PTV voltage is 0.68V or less when the computer is powered off.
(BV power is on)