Nokia 301 Service Manual page 142

Figure 55 Internal speaker
Figure 56 Internal microphone.........................................................................................................................
Figure 57 Internal MIC bias circuit
Figure 58 Headset interface
Figure 59 External MIC bias
Figure 60 AV connector......................................................................................................................................
Figure 61 Hook detect........................................................................................................................................
Figure 62 Vibrator driver side
Figure 63 Vibrator side
Figure 64 Quark RF block
Figure 65 The functional block diagram of the receive section
Figure 66 The functional block diagram of reference clock
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