Huawei G510 Maintenance Manual page 36

Figure 9-3 Voltages
Troubleshooting
Most power-on faults are caused by power supply exceptions. So you can rectify power-on
faults by troubleshooting power supply circuit faults. Power-on faults are divided into the
following types:



2013-01-28
G510 Maintenance Manual V1.0
No current: The DC current ranges from 0 mA to 5 mA after you connect the G510 to the
DC power supply and press the power key.
Weak current: The DC current ranges from 5 mA to 100 mA after you connect the G510
to the DC power supply and press the power key.
Strong current: The DC current exceeds 300 mA after you connect the G510 to the DC
power supply and press the power key.
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