Manuals / Arcam / Home Audio / Stereo Amplifier

Arcam A85 service manual

Models: A85

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Contents

DiVA A85, P85 & P85/3 Ampliﬁers ARCAMService guide Contents ListContents list Circuit diagramsPower supply Input switchingVolume control Pre-amplifiercircuit descriptionAmplifier & PSU Circuit Description L882 Circuit SheetL882 Circuit Sheet L882 Circuit Sheet The basic principle of operation is followsL870 Phono Circuit Description InterfaceAmplifier The 14 pin connector is numbered as follows The ground naming convention is as followsBuild History A85, P85, P85/3 Service GuideQuiescent Current Setting Software HistoryHints & Tips Fault DiagnosticsFault Action23425 A85 amplifier and PSU - top sheet Circuit DiagramINTEGRATED / PRE-POWER MODE SELECT SWITCH FROM PREAMPSheet 2 of Circuit DiagramDRAWING TITLE L882C2DRAWING TITLE A85 amplifier - power output stage leftCircuit Diagram Sheet 3 ofDRAWING TITLE A85 amplifier - power output stage rightCircuit Diagram Sheet 4 ofPembroke Avenue Circuit DiagramDVD DISPLAY PCB Denny Industrial CentrePembroke Avenue USE EXCLUDE NF WHEN USING RUNOUT SHEET PROGRAMDRAWING TITLE WaterbeachDRAWING TITLE Integrated amplifier preamp - main signal pathCircuit Diagram Pembroke AvenueWaterbeach DRAWING TITLEDenny Industrial Centre Cambridge CB5 9PBMARY AMP DISPLAY PCB Circuit DiagramA85 DISPLAY PCB 23425MARY AMP DISPLAY PCB Circuit DiagramISSUE DRAWING TITLEA85 PHONO STAGE - TOP LEVEL Circuit DiagramISSUE 23425A85 PHONO STAGE - LEFT CHANNEL Circuit DiagramISSUE 23425A85 PHONO STAGE - RIGHT CHANNEL Circuit DiagramISSUE 23425Denny Industrial Centre DRAWING TITLEPembroke Avenue WaterbeachDRAWING TITLE Circuit DiagramAP85 third channel - output stage Sheet 2 ofPembroke Avenue P85 microcontroller and switchDRAWING TITLE Denny Industrial CentrePage Page Page Page Page Page Page ARCAM ARCAM PCB Bill of MaterialsARCAM PCB Bill of MaterialsARCAM PCB Bill of MaterialsARCAM 2D210ARCAM L866PBQty Iss ARCAMPart DescriptionARCAM 2D210ARCAM PartARCAM B1013A85 PHONO PCB ISSUETITLE DWG. No. L870RSDeletions Since Last Issue ISSUEAdditions Since Last Issue TITLEARCAM PCB Bill of MaterialsARCAM 4B179A TACT SWITCH SKHVPE TITLE P85 SWITCH BOARDISSUE TACT SWITCH BOURNS SDTX-644TACT SWITCH 2-PINLOW PROF TITLE P85 SWITCH BOARDISSUE DWG. NoA85 General Assembly Parts List 230V A85 General Assembly Parts ListWHERE USED 115V230V P85 General AssemblyWHERE USED 115V230V P85 General AssemblyWHERE USED 115V230V P85/3 General AssemblyWHERE USED 115V230V P85/3 General AssemblyWHERE USED 115V