Nokia N96 Service Manual

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Nokia N96 Service Manual Manual pdf 207 page image

Internal earpieceThe internal earpiece is used in the HandPortable (HP) call mode. A dynamic 8 mm earpiece capsule isconnected directly to the EM ASIC (N2200) differential outputs EarP and EarN through the flip flexi PWB andmicro coaxial cable (X6 - X8900).Figure 62 Internal earpiece schematicsInternal speakerThe internal speakers are used in Internal HandsFree (IHF) call mode and for ringing tones. They can also beused for example with GPS navigation instructions or with Music Player. Two dynamic speakers are connectedto the N2120 stereo amplifier. Signal to the amplifier comes from N2200 outputs XearL and XearR.Figure 63 Stereo IHF connectionExternal earpieceAll galvanic accessories are connected to the AV-connector. Any accessory with 3.5mm plug can be used.Accessory detection mechanism is described in separate chapter. Stereo signal to external earpiece comesfrom N2200 outputs XearL and XearR. Attenuation is needed before headphone amplifier in the use casewhere ringing tone is played from IHF speakers and earpiece simultaneously.RM-247System ModuleIssue 1 COMPANY CONFIDENTIAL Page 7 –27Copyright © 2008 Nokia. All rights reserved.