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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting
E5V output
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 abnormal when the computer is suspended.
54h E5V voltage is abnormal when the computer shuts down. (CV support)
55h E5V voltage is 4.50V or less when the computer is booting up.
(CV support)
E3V output
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 abnormal when the computer is suspended.
64h E3V voltage is abnormal when the computer shuts down. (CV support)
65h E3V voltage is 2.81V or less when the computer is booting up.
(CV support)
PPV output
Error code Meaning
70h PPV voltage is over 1.92V when the computer is powered on/off.
71h PPV voltage is 1.04V or less when the computer is powered on.
72h PPV voltage is 1.04V or less when the computer is booting up.
73h PPV voltage is 1.04V or more when the computer is powered off.
2-12 Satellite A20 Maintenance Manual (960-444)