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2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting
2-12 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)
PTV output (P75)
Error code Meaning
D0h PTV voltage is over 2.16V when the computer is powered on/off.
D1h PTV voltage is 0.89V or less when the computer is powered on.
D2h PTV voltage is 0.89V or less when the computer is booting up.
D3h PTV voltage is 0.89V or more when the computer is powered off.
(PV power is off)
PTV output (P77: MUX_CH1)
Error code Meaning
E0h PTV voltage is over 1.26V when the computer is powered on/off.
E1h PTV voltage is 0.89V or less when the computer is powered on.
E2h PTV voltage is 0.89V or less when the computer is booting up.
E3h PTV voltage is 0.89V or less when the computer is powered off.
(PV power is off)
Check 2 In the case of error code 10h or 12h:
Make sure the AC adapter and AC power cord are firmly plugged into the
DC IN 15 V socket and wall outlet. If the cables are connected correctly, go
to the following step:
Connect a new AC adapter and AC power cord. If the error still exists, go to
Procedure 5.
Check 3 In the case of error code 21h:
Go to Procedure 3.
Check 4 For any other errors, go to Procedure 5.