Toshiba A3X manual ‰ E5V output P61

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting

‰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)

2-10 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)