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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting
2-10 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)
E5V output (P61)
Error code Meaning
50h E5V voltage is over 6.00V when the computer is powered on/off.
51h E5V voltage is 4.50V or less when the computer is powered on.
52h E5V voltage is 4.50V or less when the computer is booting up.
53h E5V voltage is over 4.50V when the computer is powered off. (EV power
is off)
54h E5V voltage is 4.50V or less when the computer is powered off. (EV
power is on)
E3V output (P62)
Error code Meaning
60h E3V voltage is over 3.96V when the computer is powered on/off.
61h E3V voltage is 2.81V or less when the computer is powered on.
62h E3V voltage is 2.81V or less when the computer is booting up.
63h E3V voltage is over 2.81V when the computer is powered off. (EV
power is off)
64h E3V voltage is 2.81V or less when the computer is powered off. (EV
power is on)
1R5-E1V output (P63: MUX_CH0)
Error code Meaning
70h 1R5-E1V voltage is over 1.80V when the computer is powered on/off.
71h 1R5-E1V voltage is 1.275V or less when the computer is powered on.
72h 1R5-E1V voltage is 1.275V or less when the computer is booting up.
73h 1R5-E1V voltage is over 1.275V when the computer is powered off.
(EV power is off)
1R8-B1V output (P64)
Error code Meaning
80h 1R8-B1V voltage is over 3.00V when the computer is powered on/off.
81h 1R8-B1V voltage is 1.53V or less when the computer is powered on.
82h 1R8-B1V voltage is 1.53V or less when the computer is booting up.
83h 1R8-B1V voltage is over 1.53V when the computer is powered off.
84h 1R8-B1V voltage is 1.53V or less when the computer is powered off.
(BV power is on)