Charging Management Circuit - Huawei G510 Maintenance Manual

Figure 9-6 Fault identification process upon strong current

9.2.2 Charging Management Circuit

Circuit Diagram
Figure 9-7 shows the circuit diagrams for charging management.
2013-01-28
G510 Maintenance Manual V1.0
The U8825-1 fails to
be powered on.
Install a simulated battery on the
U8825-1, connect the U8825-1 to the
maintenance power, press the power
key, and observe the current.
The current is
strong.
Is pin 3 of J1501
grounded?
N
Is the voltage of U201 normal?
Y
Return the U8825-1
to Huawei for repair.
Huawei Confidential
Y
Check U201 and
J1501.
N
Re-solder or replace
U201.
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INTERNAL