Microphone Failure - Huawei EDGE-U06 Simplified Maintenance Manual

EDGE U0-6 Simplified Maintenance Manual
Figure 10-14 Critical part for receiver failures

10.7 Microphone Failure

Figure 10-15 Troubleshooting microphone failures
Issue 1.0 (2013-01-12)
Microphone failure
Are the microphone and
microphone sub-board
properly functioning?
Y
Are the related signal
circuits properly functioning?
Y
Replace the PCBA
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N
Replace the
microphone or
microphone sub-
board
N
Exclude the
microphone sub-
board, FPC, and
related signal
circuit faults
10 Troubleshooting
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