Internal Speaker; External Earpiece - Nokia 6233 Service Manual

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System Module Nokia Customer Care

Internal speaker

The internal speaker is used in Internal HandsFree (IHF) call mode.
A dynamic 16 mm speaker is connected to N2200 outputs HFSpP and HFSpN.
The IHF amplifier integrated in N2200 is a Digital Pulse Modulated Amplifier (DPMA).
Figure 65 Internal speaker circuitry

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 66 External earpiece circuitry (system connector connected on the right)
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