External Earpiece; Vibra Circuitry - Nokia N72 Service Manual

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System Module Nokia Customer Care

External earpiece

All galvanic accessories are connected to the system connector.
The accessory audio mode is automatically enabled/disabled during connection/disconnection of dedicated
phone accessories.
Figure 106 External earpiece circuitry (system connector connected on the right)

Vibra circuitry

The vibra circuitry is used for the vibra-alarm function.
The vibra motor is connected to the EM ASIC (N2200) VibraP and VibraN Pulse Width Modulated (PWM) outputs.
Figure 107 Vibra circuitry
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