Microphone - Huawei G510 Maintenance Manual

Figure 9-31 Troubleshooting process when the G510 receives no voice

9.4.4 Microphone

Circuit Diagram
Figure 9-32 shows the circuit diagram of the primary microphone.
2013-01-28
G510 Maintenance Manual V1.0
After a call is established,
no voice is received.
Is the software
properly
reloaded?
N
Is the headset
volume properly set?
Y
Is the receiver
properly
connected?
Y
Does the U8825-
1 detect the
headset when
the headset is
not inserted?
Y
Is voice received
after receiver
replacement?
N
Are peripheral
circuits of U2002 dry
jointed and deflected?
N
Return the U8825-1 to Huawei
for repair
Huawei Confidential
Y
End
N
Adjust the headset volume
to a proper value.
N
Re-solder the receiver wire.
N
Check the headset
connector.
Y
End
Y
End
INTERNAL
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