Internal Earpiece; Internal Handsfree (Ihf) Speakers; Internal Microphones - Nokia RM-596 Service Manual
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RM-596
System Module
Internal earpiece
The internal earpiece used is Petra (8X12) and is connected to EM ASIC EARP and EARN lines.
Figure 66 Internal earpiece diagram
Internal handsfree (IHF) speakers
IHF speakers used are Donau and are connected to BoostMono Vallu N2150. Vallu is a mono D-class speaker
amplifier with an integrated inductive boost converter. Vallu's differential audio inputs are connected to EM
ASIC Gazoo/Pearl XEarL, XEarLC and it can be enabled/disabled by Genout105 from Rapu.
Figure 67 Internal handsfree (IHF) speaker diagram
Internal microphones
Digital microphones used are Knopfler and are connected to Rapu. DigiMic CLK is connected to RAPU Genio72
and DigiMic DATA is connected to Rapu Genio39.
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