Manuals / Arcam / Home Audio / Stereo Amplifier

Arcam A85 service manual

Models: A85

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Download 54 pages 166 b

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Page 27

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Contents

ARCAM DiVA A85, P85 & P85/3 AmpliﬁersCircuit diagrams Contents ListContents list Service guidePre-amplifiercircuit description Input switchingVolume control Power supplyAmplifier & PSU Circuit Description L882 Circuit SheetL882 Circuit Sheet The basic principle of operation is follows L882 Circuit SheetL870 Phono Circuit Description InterfaceAmplifier The ground naming convention is as follows The 14 pin connector is numbered as followsSoftware History A85, P85, P85/3 Service GuideQuiescent Current Setting Build HistoryAction Fault DiagnosticsFault Hints & TipsFROM PREAMP A85 amplifier and PSU - top sheet Circuit DiagramINTEGRATED / PRE-POWER MODE SELECT SWITCH 23425L882C2 Circuit DiagramDRAWING TITLE Sheet 2 ofSheet 3 of A85 amplifier - power output stage leftCircuit Diagram DRAWING TITLESheet 4 of A85 amplifier - power output stage rightCircuit Diagram DRAWING TITLEDenny Industrial Centre Circuit DiagramDVD DISPLAY PCB Pembroke AvenueWaterbeach USE EXCLUDE NF WHEN USING RUNOUT SHEET PROGRAMDRAWING TITLE Pembroke AvenuePembroke Avenue Integrated amplifier preamp - main signal pathCircuit Diagram DRAWING TITLECambridge CB5 9PB DRAWING TITLEDenny Industrial Centre Waterbeach23425 Circuit DiagramA85 DISPLAY PCB MARY AMP DISPLAY PCBDRAWING TITLE Circuit DiagramISSUE MARY AMP DISPLAY PCB23425 Circuit DiagramISSUE A85 PHONO STAGE - TOP LEVEL23425 Circuit DiagramISSUE A85 PHONO STAGE - LEFT CHANNEL23425 Circuit DiagramISSUE A85 PHONO STAGE - RIGHT CHANNELWaterbeach DRAWING TITLEPembroke Avenue Denny Industrial CentreSheet 2 of Circuit DiagramAP85 third channel - output stage DRAWING TITLEDenny Industrial Centre P85 microcontroller and switchDRAWING TITLE Pembroke AvenuePage Page Page Page Page Page Page ARCAM PCB Bill of Materials ARCAMPCB Bill of Materials ARCAMPCB Bill of Materials ARCAM2D210 ARCAML866PB ARCAMDescription ARCAMPart Qty Iss2D210 ARCAMPart ARCAMB1013 ARCAMDWG. No. L870RS ISSUETITLE A85 PHONO PCBTITLE ISSUEAdditions Since Last Issue Deletions Since Last IssuePCB Bill of Materials ARCAM4B179 ARCAMTACT SWITCH BOURNS SDTX-644 TITLE P85 SWITCH BOARDISSUE A TACT SWITCH SKHVPEDWG. No TITLE P85 SWITCH BOARDISSUE TACT SWITCH 2-PINLOW PROFA85 General Assembly Parts List 115V A85 General Assembly Parts ListWHERE USED 230V115V P85 General AssemblyWHERE USED 230V115V P85 General AssemblyWHERE USED 230V115V P85/3 General AssemblyWHERE USED 230V115V P85/3 General AssemblyWHERE USED 230V