Cambridge Audio 651A - Table of Contents

2
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Audio.
Contents
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This document contains proprietary information protected by copyright.
All rights are reserved. No part of this manual may be reproduced by
any mechanical, electronic or other means, in any form, without prior
written permission of the manufacturer. All trademarks and registered
trademarks are the property of their respective owners.
© Copyright Cambridge Audio Ltd 2013.
Cambridge Audio and the Cambridge Audio logo are trademarks of
Cambridge Audio.
Technical Specications .............................................................................................1
Table of Contents ........................................................................................................2
Safety Instructions ......................................................................................................3
Rear Panel Connections .............................................................................................5
Front Panel Controls ....................................................................................................6
Exploded Diagram ....................................................................................................... 7
Spares Table ................................................................................................................ 8
Front Panel PCB Schematic ........................................................................................9
Front Panel PCB Layout ............................................................................................10
Front Panel PCB BOM ...............................................................................................11
Input PCB Schematic ................................................................................................12
Input PCB Layout ....................................................................................................... 14
Input PCB BOM ..........................................................................................................15
Preamp PCB Schematic ............................................................................................ 17
Preamp PCB Layout ..................................................................................................20
Preamp PCB BOM .....................................................................................................21
Protection PCB Schematic ........................................................................................23
Protection PCB Layout ..............................................................................................24
Protection PCB BOM .................................................................................................25
Speaker PCB Schematic ...........................................................................................26
Speaker PCB Layout ..................................................................................................28
Speaker PCB BOM ....................................................................................................29
Power Amp PCB Schematic ......................................................................................30
Power Amp PCB Layout .............................................................................................35
Power Amp PCB BOM ................................................................................................36
Mains PCB (EU) Schematic .......................................................................................38
Mains PCB (EU) BOM ................................................................................................39
Mains PCB (CU) Schematic ......................................................................................40
Mains PCB (CU) BOM ................................................................................................41
Mains PCB Layout .....................................................................................................42
USB Input Audio PCB Schematic ..............................................................................43
USB Input Audio PCB Layout ....................................................................................44
USB Input Audio PCB BOM .......................................................................................45
IC Details ....................................................................................................................47
Include APD changes
Revised Part Table and explanation of APD changes ..............................................55
Input PCB Schematic with APD .................................................................................56
Preamp PCB Schematic with APD .............................................................................58
AMP PCB Schematic ..................................................................................................61
Switched Mode Power Supply Schematic ................................................................66
Auto Power Down Trigger board schematic ..............................................................67
Auto Power Down(Trigger) Gerbers ...........................................................................68
APD Trigger Cable .......................................................................................................70