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9.3 Charge Failure
Analyzing：The IO Connector damaged causes the failure usually.
Reference Figure 9-2
2011-05-28
U8510-1 Maintenance Manual Basic Version V1.0
Charge failure
Measure whether the voltage
of J207 is about 5V?
Y
Measure whether the voltage
of VPH_PWR is normal?
Y
Measure whether
Q202 Pin2&Pin3 has voltage
difference？
Y
Measure whether the U901 is
normal?
Y
Replace the U401
Huawei confidential. No spreading without permission.
N
Replace the J207
N
Replace the U201
N
Replace the Q202
N
Replace the U901
Internal
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