Nokia 6233 Service Manual page 176

RM-123; RM-145
Nokia Customer Care System Module
Figure 57 Power regulator diagram.....................................................................................................................8–9
Figure 58 Clocking scheme..................................................................................................................................8–10
Figure 59 SIM interface........................................................................................................................................8–11
Figure 60 LCD module..........................................................................................................................................8–12
Figure 61 Audio block diagram...........................................................................................................................8–15
Figure 62 Internal microphone circuitry............................................................................................................8–16
Figure 63 External microphone circuitry (Pop-Port connects to the right side)............................................8–16
Figure 64 Internal earpiece circuitry..................................................................................................................8–16
Figure 65 Internal speaker circuitry...................................................................................................................8–17
Figure 66 External earpiece circuitry (system connector connected on the right).......................................8–17
Figure 67 Vibra circuitry......................................................................................................................................8–18
Figure 68 System connector pin layout.............................................................................................................8–18
Figure 69 Bluetooth interface.............................................................................................................................8–20
Figure 70 FM interface.........................................................................................................................................8–20
Figure 71 GSM transmitter...................................................................................................................................8–22
Figure 72 RF supply connections from the BB mixed mode ASIC....................................................................8–24
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