Toshiba TECRA M9 Maintenance Manual page 61

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2.3 Power Supply Troubleshooting

1R9-B1V output (P66:MUX- CH1)

TECRA M9 Maintenance Manual (960-631)

1R9-B1V voltage is over 2.40V when the computer is powered on/off.

1R9-B1V voltage is 1.53V or less when the computer is powered on.

1R9-B1V voltage is 1.53V or less when the computer is booting up

1R9-B1V voltage is 1.53 or more when the computer is powered off.

1R9-B1V voltage is 1.53V or less when the computer is suspended.

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2 Troubleshooting Procedures

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