Arcam A85 - Manual

Arcam A85

Arcam A85 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – Contents List
  • Page 3 – Pre-amplifier circuit description
  • Page 4 – Amplifier & PSU Circuit Description
  • Page 7 – The ground naming convention is as follows:
  • Page 9 – Fault Diagnostics; Fault Action
  • Page 10 – ISSUE; DRAWING TITLE; DATE; A85 amplifier and PSU - top sheet; J Reckless; INITIALS; Date Printed; Sheet; EMC; FROM PREAMP; PCB; EARTH LEAD
  • Page 11 – A85 amplifier - power supply and microcontroller interface
  • Page 12 – A85 amplifier - power output stage left
  • Page 13 – A85 amplifier - power output stage right
  • Page 15 – Integrated amplifier preamp; JBR; USE EXCLUDE NF WHEN USING RUNOUT SHEET PROGRAM
  • Page 17 – Integrated amplifier preamp - power supply
  • Page 18 – MARY AMP DISPLAY PCB; A85 DISPLAY PCB
  • Page 23 – AP85 third channel - top level
  • Page 33 – ARCAM; PCB Bill of Materials
  • Page 39 – Part Qty Iss Description Designators
  • Page 49 – A85 General Assembly Parts List
  • Page 50 – SILVER BLACK
  • Page 51 – P85 General Assembly; DESCRIPTION
  • Page 52 – SILVER BLACK
  • Page 53 – P85/3 General Assembly
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A85

DiVA A85, P85 & P85/3
Amplifi ers

Service Manual

ARCAM

ARCAM

Issue 2.0

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Summary

Page 2 - Contents List

Contents List ! Contents list ! Circuit description ! Service guide ! Circuit diagrams ! Component overlays ! Circuit board parts list ! General assembly parts list

Page 3 - Pre-amplifier circuit description

Pre-amplifier circuit description The A85 preamplifier is a high-performance, DC coupled design with microprocessor control of input select, two independent tape loops, electronic volume control, tone bypass and electronic tone control. It features a discrete power supply and low-noise linear circui...

Page 4 - Amplifier & PSU Circuit Description

Amplifier & PSU Circuit Description L882PB is the printed circuit board that provides the power supply and output stage amplifiers for the A85 integrated and power amplifiers. Its function is to: 1. Drive the loudspeakers(!) 2. Provide an (always on) auxiliary 5VDC supply for the micro controlle...

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