Toshiba Portege R500 Maintenance Manual - Page 55

E5V output, E3V output, 1R5-E1V output, 1R8-B1V output

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2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures ‰ E5V output Error code Meaning 50h E5V voltage is over 6.00V when the computer is powered on/off. 51h E5V voltage is under 4.50V when the computer is powered on. 52h E5V voltage is under 4.50V when the computer is booting up. 54h E5V voltage is under 4.50V when EV power is maintained and OUTV1=EV is designated. ‰ E3V output Error code Meaning 60h E3V voltage is over 3.96V when the computer is powered on/off. 61h E3V voltage is under 2.81V when the computer is powered on. 62h E3V voltage is under 2.81V when the computer is booting up. 64h E3V voltage is under 2.81 V when EV power is maintained. ‰ 1R5-E1V output Error code Meaning 70h 1R5-E1V voltage is over 1.80V when the computer is powered on/off. 71h 1R5-E1V voltage is under 1.275V when the computer is powered on. 72h 1R5-E1V voltage is under 1.275V when the computer is booting up. ‰ 1R8-B1V output Error code Meaning 80h 1R8-B1V voltage is over 2.16V when the computer is powered on/off. 81h 1R8-B1V voltage is under 1.53V when the computer is powered on. 82h 1R8-B1V voltage is under 1.53V when the computer is booting up. 84h 1R8-B1V voltage is under 1.53V when BV power is maintained and OUTV４=BV is designated. PORTEGE R500 Maintenance Manual (960-634) [CONFIDENTIAL] 2-9

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2.3 Power Supply Troubleshooting
2
Troubleshooting Procedures
PORTEGE R500 Maintenance Manual (960-634) [CONFIDENTIAL]
2-9
E5V output
Error code
Meaning
50h
E5V voltage is over 6.00V when the computer is powered on/off.
51h
E5V voltage is under 4.50V when the computer is powered on.
52h
E5V voltage is under 4.50V when the computer is booting up.
54h
E5V voltage is under 4.50V when EV power is maintained and
OUTV1=EV is designated.
E3V output
Error code
Meaning
60h
E3V voltage is over 3.96V when the computer is powered on/off.
61h
E3V voltage is under 2.81V when the computer is powered on.
62h
E3V voltage is under 2.81V when the computer is booting up.
64h
E3V voltage is under 2.81 V when EV power is maintained.
1R5-E1V output
Error code
Meaning
70h
1R5-E1V voltage is over 1.80V when the computer is powered on/off.
71h
1R5-E1V voltage is under 1.275V when the computer is powered on.
72h
1R5-E1V voltage is under 1.275V when the computer is booting up.
1R8-B1V output
Error code
Meaning
80h
1R8-B1V voltage is over 2.16V when the computer is powered on/off.
81h
1R8-B1V voltage is under 1.53V when the computer is powered on.
82h
1R8-B1V voltage is under 1.53V when the computer is booting up.
84h
1R8-B1V voltage is under 1.53V when BV power is maintained and
OUTV
４
=BV is designated.