User Guide

Figure 75 Audio block diagram

Internal microphone

Internal microphone is used for HandPortable (HP) and Internal HandsFree (IHF) call modes.

Figure 76 Internal microphone circuitry

External microphone

Galvanic accessories are connected to the system connector.

The accessory audio mode is automatically enabled/disabled during connection/disconnection of dedicated

phone accessories.

Internal earpiece

Internal earpiece is used for the HandPortable (HP) call mode. A dynamic 8mm earpiece capsule is employed.

RM-86

System Module Nokia Customer Care

Issue 1 COMPANY CONFIDENTIAL Page 9 –15