Cambridge Audio CX N, Service Manual

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Contents
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are reserved. No part of this manual may be reproduced by any mechanical,
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manufacturer. All trademarks and registered trademarks are the property of their
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© Copyright Cambridge Audio Ltd 2015.
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This guide is designed to make installing and using this product as
easy as possible. Information in this document has been carefully
checked for accuracy at the time of printing; however, Cambridge
Audio’s policy is one of continuous improvement, therefore design
and specifications are subject to change without prior notice.
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 2015.
Cambridge Audio and the Cambridge Audio logo are trademarks of
Cambridge Audio.
Other brands mentioned are trademarks of their respective owners
and are used for reference purposes only.
Exploded Diagram ...............................................................................................................................3
Front Panel Exploded Diagram ..........................................................................................................4
Product Assy Exploded Diagram ........................................................................................................5
CXN Block Diagram - Master .............................................................................................................6
CXN Block Diagram - Signal Path .......................................................................................................7
CXN Block Diagram - Control Lines ...................................................................................................8
CXN Block Diagram - Clock Signals ....................................................................................................9
CXN Front Panel PCB Schematic ......................................................................................................10
Front Panel Top .................................................................................................................................11
Front Panel Bottom ...........................................................................................................................12
Front panel PCB BOM .......................................................................................................................13
Audio PCB Schematic Power supply ...............................................................................................14
Audio PCB Schematic USB Circuit Powe Supply ............................................................................15
Audio PCB Schematic SPDIF I/O Reply ...........................................................................................16
Audio PCB Schematic USB Streaming PHY .....................................................................................17
Audio PCB Schematic DSP and DIR .................................................................................................18
Audio PCB Schematic Masterclocks ................................................................................................19
Audio PCB Schematic DSP Decoupling & SRAM .............................................................................20
Audio PCB Schematic WM8740/1/2 DACs .....................................................................................21
Audio PCB Schematic MCU and Flash .............................................................................................22
Audio PCB Schematic Ethernet and USB HUB ................................................................................23
Audio PCB Schematic ZANDER ........................................................................................................24
Audio PCB Schematic Apple Test Points and EMC Points ..............................................................25
Audio PCB Schematic ANALOGUE STAGE ........................................................................................26
Audio PCB Top ...................................................................................................................................27
Audio PCB Bottom .............................................................................................................................28
Audio PCB BOM .................................................................................................................................29
BUS PCB Schematic ..........................................................................................................................34
Control BUS Top.................................................................................................................................35
Control BUS Bottom ..........................................................................................................................36
Control BUS BOM ..............................................................................................................................37
Front DAUGHTER PCB Schematic ....................................................................................................38
Front Panel DAUGHTER Top PCB .....................................................................................................39
Front Panel DAUGHTER Bottom PCB ...............................................................................................40
Front Panel DAUGHTER PCB BOM ....................................................................................................41
ENCODER PCB Schematic ................................................................................................................42
ENCODER Top & Bottom ..................................................................................................................43
ENCODER PCB BOM......................................................................................................................... 44
SMPS Schematic PCB .......................................................................................................................45
SMPS PCB LAYOUT ............................................................................................................................46
SMPS PCB BOM ................................................................................................................................47