Huawei U9500 Maintenance Manual page 75

U9500 Maintenance Guide
Figure 9-46 Handling process for the headset speaker failure
Handling Process for Headset Microphone Failure
Figure 9-47 shows the process for handling the headset microphone failure.
Issue 1.2 (2012-6-30)
Headset speaker failure
Check whether J1500 functions
properly.
Y
Check whether the components
on the left and right earphone
channels are in good condition.
Y
Check whether the headset is
short-circuited。
Y
Replace U1201.
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N
Replace
J1500.
N
Replace relevant
components.
N
Rectify the faults on
the signal circuit.
9 Troubleshooting
70