Manuals / Arcam / Home Audio / Stereo Amplifier

Arcam A85 service manual

Models: A85

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Contents

ARCAM DiVA A85, P85 & P85/3 AmpliﬁersContents list Contents ListService guide Circuit diagramsVolume control Input switchingPower supply Pre-amplifiercircuit descriptionL882 Circuit Sheet Amplifier & PSU Circuit DescriptionL882 Circuit Sheet The basic principle of operation is follows L882 Circuit SheetAmplifier L870 Phono Circuit DescriptionInterface The ground naming convention is as follows The 14 pin connector is numbered as followsQuiescent Current Setting A85, P85, P85/3 Service GuideBuild History Software HistoryFault Fault DiagnosticsHints & Tips ActionINTEGRATED / PRE-POWER MODE SELECT SWITCH A85 amplifier and PSU - top sheet Circuit Diagram23425 FROM PREAMPDRAWING TITLE Circuit DiagramSheet 2 of L882C2Circuit Diagram A85 amplifier - power output stage leftDRAWING TITLE Sheet 3 ofCircuit Diagram A85 amplifier - power output stage rightDRAWING TITLE Sheet 4 ofDVD DISPLAY PCB Circuit DiagramPembroke Avenue Denny Industrial CentreDRAWING TITLE USE EXCLUDE NF WHEN USING RUNOUT SHEET PROGRAMPembroke Avenue WaterbeachCircuit Diagram Integrated amplifier preamp - main signal pathDRAWING TITLE Pembroke AvenueDenny Industrial Centre DRAWING TITLEWaterbeach Cambridge CB5 9PBA85 DISPLAY PCB Circuit DiagramMARY AMP DISPLAY PCB 23425ISSUE Circuit DiagramMARY AMP DISPLAY PCB DRAWING TITLEISSUE Circuit DiagramA85 PHONO STAGE - TOP LEVEL 23425ISSUE Circuit DiagramA85 PHONO STAGE - LEFT CHANNEL 23425ISSUE Circuit DiagramA85 PHONO STAGE - RIGHT CHANNEL 23425Pembroke Avenue DRAWING TITLEDenny Industrial Centre WaterbeachAP85 third channel - output stage Circuit DiagramDRAWING TITLE Sheet 2 ofDRAWING TITLE P85 microcontroller and switchPembroke Avenue Denny Industrial CentrePage Page Page Page Page Page Page ARCAM PCB Bill of Materials ARCAMPCB Bill of Materials ARCAMPCB Bill of Materials ARCAM2D210 ARCAML866PB ARCAMPart ARCAMQty Iss Description2D210 ARCAMPart ARCAMB1013 ARCAMTITLE ISSUEA85 PHONO PCB DWG. No. L870RSAdditions Since Last Issue ISSUEDeletions Since Last Issue TITLEPCB Bill of Materials ARCAM4B179 ARCAMISSUE TITLE P85 SWITCH BOARDA TACT SWITCH SKHVPE TACT SWITCH BOURNS SDTX-644ISSUE TITLE P85 SWITCH BOARDTACT SWITCH 2-PINLOW PROF DWG. NoA85 General Assembly Parts List WHERE USED A85 General Assembly Parts List230V 115VWHERE USED P85 General Assembly230V 115VWHERE USED P85 General Assembly230V 115VWHERE USED P85/3 General Assembly230V 115VWHERE USED P85/3 General Assembly230V 115V