Vibra Circuitry; System Connector - Nokia RM-132 Service Manual & Parts Manual

RM-132; RM-133
Nokia Customer Care System Module
Figure 90 External earpiece circuitry

Vibra circuitry

Vibra is used for vibra-alarm function.
The vibra motor is connected to the EM ASIC (N2200) VibraP and VibraN Pulse Width Modulated (PWM) outputs.
Figure 91 Vibra circuitry
The vibra is soldered onto the engine PWB.

System connector

The system connector provides a fully differential 4–wire stereo line-level output connection and a fully
differential 2-wire mono line-level or microphone level input connection.
The handsfree driver in one of the EM ASICs is meant for the headset.
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