Figure 33 Test arrangement for IHF speaker
Figure 34 IHF speaker troubleshooting flow
External microphone troubleshooting
Steps:
1 Connect phone with Phoenix.
2 Open “audio test” window from “Testing –> Audio test”, as shown in Figure Phoenix audio test window
above.
3 Select “Ext microphone in Ext speaker out”.
4 Select “Loop” as “On”.
5 Input sound at microphone port, for example 94dB SPL 1kHz.
6 Check if signal is detected at HS_EAR_L/R pads, shown in Figure PWB audio test points above.
RM-704
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 – 31
Copyright © 2011 Nokia. All rights reserved.
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