Nokia RM-272 - Page 71

Figure 13 Differential output waveform of the Ext_in_IHF_out out loop measurement when speaker is connected.
Figure 14 Single-ended output waveform of the HP_in_Ext_out loop when microphone is connected.
RM-272; RM-273
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 –27
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