IHF speaker troubleshooting
Steps:
1 Connect phone with Phoenix.
2 Open “audio control” window from “Testing –> Audio control”, as shown in Figure Phoenix audio control
window above.
3 Select “AV mic to IHF ear”.
4 Set “Activate” on.
5 Input signal to HS_MIC/GND pads, as shown in Figure PWB audio test point above, for example 100mVpp,
1kHz.
6 Check if sound is heard in IHF.
Figure 29 Test arrangement for IHF speaker
Figure 30 IHF speaker troubleshooting flow
RM-761; RM-799; RM-800
BB Troubleshooting and Manual Tuning Guide
Page 3 – 28 COMPANY CONFIDENTIAL Issue 1
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