Nokia RM-42 Service Manual
Also see for RM-42: Service manual
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Speaker is assembled to camera unit, but some filter components are also in engine PWB.Figure 115 Internal speaker circuitryExternal earpieceGalvanic accessories are connected to the system connector (Pop-PortTM).Accessory audio mode is automatically enabled/disabled during connection/disconnection of dedicated phoneaccessories.Retu ASIC provides two output channels in either single-ended or differential format. Retu ASIC outputs XearLand XearLC form the left channel audio output and XearR and XearRC the right channel audio output. XearLCand XearRC are the ground pins if the output works in a single-ended operation.On the Pop-Port side, HSEAR P and HSEAR N form the left channel output and HSEAR R P and HSEAR R N the rightchannel output. Respectively, HSEAR N and HSEAR R N are the ground pins if the output works in a single-endedoperation.RM-42System Module Nokia Customer Care9241872 (Issue 1) Company Confidential Page 9–29Copyright ©2005 Nokia. All Rights Reserved. |
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