Audio Failure; No Ring Tone - Huawei U8350 Maintenance Manual

9.11 Audio Failure

9.11.1 No Ring Tone

Reference Figure 9-11
2011-05-18
U8350 Maintenance Manual Basic Version V1.0
No ring tone
Check if the sound setting is
normal?
Y
Measure whether
the impedance value of
speaker is about 8Ω?
Y
Measure whether
D902&D903 are rosin joint
and damaged?
N
Replace the U201
Figure 9-11
Huawei confidential. No spreading without permission.
Setting the
N
phone
Replace the
N
speaker
Replace
abnormal
Y
components
D903
D902
Internal
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