2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting
 E3V output
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 2.81V or more when the computer is powered off.
A4h E3V voltage is 2.81V or less when the computer is suspended.
 PPV output
Error code Meaning
B0h PPV voltage is over 1.80V when the computer is powered on/off.
B1h PPV voltage is 0.56V or less when the computer is powered on.
B2h PPV voltage is 0.56V or less when the computer is booting up.
B3h PPV voltage is 0.56V or more when the computer is powered off.
 PGV output
Error code Meaning
C0h PGV voltage is over 1.62V when the computer is powered on/off.
C1h PGV voltage is 0.68V or less when the computer is powered on.
C2h PGV voltage is 0.68V or less when the computer is booting up.
C3h PGV voltage is 0.68V or more when the computer is powered off.
C4h PGV voltage is 0.68V or less while the computer is suspended.
 PTV output
Error code Meaning
D0h PTV voltage is over 1.26V when the computer is powered on/off.
D1h PTV voltage is 0.68V or less when the computer is powered on.
D2h PTV voltage is 0.68V or less when the computer is booting up.
D3h PTV voltage is 0.68V or more when the computer is powered off.
D4h PTV voltage is 0.68V or less while the computer is suspended.
QOSMIO G20 Maintenance Manual (960-511) [CONFIDENTIAL] 2-13
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