Toshiba Tecra A8 Maintenance Manual page 63

2.3 Power Supply Troubleshooting
E5V output
Error code
50h
51h
52h
54h
E3V output
Error code
60h
61h
62h
64h
PMV output
Error code
70h
71h
72h
1R8-B1V output
Error code
80h
81h
82h
84h
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)
E5V voltage is over 6.00V when the computer is powered on/off.
E5V voltage is under 4.50V when the computer is powered on.
E5V voltage is under 4.50V when the computer is booting up.
E5V voltage is under 4.50V when EV power is maintained and
OUTV1=EV is designated.
E3V voltage is over 3.96V when the computer is powered on/off.
E3V voltage is under 2.81V when the computer is powered on.
E3V voltage is under 2.81V when the computer is booting up.
E3V voltage is under 2.81 V when EV power is maintained and
OUTV2=EV is designated.
PMV voltage is over 1.44V when the computer is powered on/off.
PMV voltage is under 0.85V when the computer is powered on.
PMV voltage is under 0.85V when the computer is booting up.
1R8-B1V voltage is over 2.16V when the computer is powered on/off.
1R8-B1V voltage is under 1.53V when the computer is powered on.
1R8-B1V voltage is under 1.53V when the computer is booting up.
1R8-B1V voltage is under 1.53V when BV power is maintained and
OUTV４=BV is designated.
2 Troubleshooting Procedures
Meaning
Meaning
Meaning
Meaning
[CONFIDENTIAL] 2-15