Huawei Ascend - Listening to the FM Radio

Y210 Mobile Phone
Maintenance Manual
9 Principles and Failure Analysis
Issue 1.0 (2012-11-28)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
31
Troubleshooting Charging Failure
Figure 9-6 Charging failure
Charging failure
Is J901 poorly
soldered?
Re-solder J901
Is the battery in good
contact with the battery
connector?
End
Does VPH_PWR have
voltages?
Repair or replace
J902
Replace U201
N
Y
Y
Y
N
N
Is the battery damaged?
Replace the
battery
Y
N
Y
Y
Is there voltage difference
between Q201' pin 2 and
pin 3?
Replace Q201
N
Is the charger working
properly?
Replace the
charger
N
Y
9.3 RF Unit
9.3.1 RF Failure
Troubleshooting Transmission Failure

GSM/DCS transmission failure