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1、Service Manual 851W Issue date: Nov 2015 Technical specificationsSpecifications Power Output - Stereo/Mono200W per channel 8 Ohms 350W per channel 4 Ohms Power Output - Bridged Mono500W 8 Ohms 800W 4 Ohms THD (unweighted) 0.001% 1kHz 90 dB (unweighted) Sensitivity Stereo or Mono = (for 200W 8 Ohms)
2、1.5V rms unbalanced 1.5 + 1.5V rms balanced Bridged Mono = 0.775V rms unbalanced 0.775V + 0.775V rms balanced Input impedances Balanced input 38 kOhm Unbalanced input 68 kOhm Damping factor 125 at 1 kHz Trigger In5 - 12V AC or DC Trigger Out12V DC 100mA Power consumptionMaximum 2400W Active (no sign
3、al) 180W Standby 0.5W Dimensions (H x W x D) 148 x 430 x 365mm (5.8 x 16.9 x 14.4”) Weight19.1kg (42.1lbs) RadioFans.CN 收音机爱 好者资料库 2 This document contains proprietary information protected by copyright. All rights are reserved. No part of this manual may be reproduced by any mechanical, electronic
4、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. Contents Packag
5、ing Exploded Diagram .3 Unit Exploded Diagram .4 Front Panel Exploded Assembly .5 Rear Panel Assembly Diagram .6 Heatsink Assembly Diagram .7 Bottom Panel Assembly Diagram .8 Main Board Block Diagram Input PCB .9 Main Board Block Diagram.10 Front Panel PCBA Schematic - Power supply and LEDs .11 Fron
6、t Panel PCBA Schematic - Mechanical parts .12 Front Panel All Layer Gerbers - .13 Front Panel Gerbers - Top .14 Front Panel Gerbers - bottom .15 FRONT PANEL BOM .16 INPUT PCB Schematic - mains circuitry .17 INPUT PCB Schematic - Audio Right .18 INPUT PCB Schematic - Cables .19 INPUT PCB Schematic -
7、Microcontroller .20 INPUT PCB Schematic - Audio Left .21 Input PCB all layer Gerbers .22 Input PCB TOP Gerbers .23 Input PCB Bottom Gerbers .24 Input PCB Bottom BOM.25 Input PCB Bottom BOM -1 .26 Input PCB Bottom BOM -2 .27 Input PCB Bottom BOM -3 .28 Input PCB Bottom BOM -4 .29 POWER AMP Schematic
8、- Power AMP .30 POWER AMP Schematic - Power Supply .31 POWER AMP Schematic - Mechanical parts .32 POWER AMP Schematic - Speaker connections .33 POWER AMP Gerbers - all layer .34 POWER AMP Gerbers - TOP .35 POWER AMP Gerbers - Bottom .36 POWER AMP - Bom -1 .37 POWER AMP - Bom -2 .38 Control Bus PCB S
9、chematic .39 Control Bus PCB Gerbers - all layer .40 Control Bus PCB Gerbers - Top .41 Control Bus PCB Gerbers - Bottom .42 Control Bus PCB Gerbers - Bom .43 Unity Gain Buffer Module Schematic .44 Unity Gain Buffer Module Gerbers .45 Unity Gain Buffer Module BOM .46 MODE SWITCH .47 MODE SWITCH GERBE
10、RS .48 MODE SWITCH BOM .49 ON Stby Switch PCB SCHEMATIC .50 ON Stby Switch PCB GERBERS.51 ON Stby Switch PCB BOM .52 CABLE ASSEMBLY .53 Make sure you register your purchase. Visit: By registering, youll be the first to know about: Future product releases Software upgrades News, events and exclusive
11、offers plus competitions! 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 Audios policy is one of continuous improvement, therefore design and speci
12、ications are subject to change without prior notice. 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. RadioFans.CN 收音机爱 好者资料库 Service Manual 3 851W Packaging Expl
13、oded Diagram 8 13 12 11 9 3 4 1 7 14 15 6 5 2 16 REV.EDITORCHKD BYDATEESR/ECN NO.REVISION NOTES 1NJB14/11/2012 2NJB14/03/2013 REMOVE SAFETY SHEET AND ADD USER MANUAL - ADD HIGH SURFACE TEMPERATURE STICKER - ADD OUTER CARTON NO.DRG. NO.DESCRIPTION/TYPEQTYMANUFACTURERBOM NOTES UK/EU SILVER UK/EU BLACK
14、 CU/JP SILVER CU/JP BLACK 1AP31846 CA0545 AZUR 851W POWER AMPLIFIER MAIN ASSEMBLY 1FORTEX PLACE WITHIN WOVEN PACKAGING BAG SILVER VERSION BLACK VERSION SILVER VERSION BLACK VERSION 2AP31101 HIGH SURFACE TEMPERATURE WARNING LABEL 1FORTEX REMOVE ADHESIVE COVER AND STICK ONTO TOP PANEL SURFACE 3AP16440
15、 AZUR 800 SERIES 4 RIDGE PACKAGING WOVEN BAG 1FORTEXPLACE ASSEMBLED UNIT WITHIN 4 FORTEX DESIGN CA0545 AZUR 851W POWER AMPLIFIER PACKAGING EPE RIGHT END CAP 1FORTEXPLACE ON ASSEMBLY RIGHT HAND END 5 FORTEX DESIGN CA0545 AZUR 851W POWER AMPLIFIER PACKAGING EPE LEFT END CAP 1FORTEXPLACE ON ASSEMBLY LE
16、FT HAND END 6 FORTEX DESIGN CA0545 AZUR 851W POWER AMPLIFIER PACKAGING CORNER SUPPORT 4FORTEXGLUE ON EACH EPE CORNER 7 FORTEX DESIGN CA0545 AZUR 851W POWER AMPLIFIER PACKAGING CARTON REINFORCEMENT SHEET 1FORTEX PLACE UNDER PRODUCT WITHIN THE CARTON 8 FORTEX DESIGN CA0508 AZUR 851A AMPLIFIER PACKAGIN
17、G EPE ASSECORY TRAY 1FORTEX PLACE WITHIN CARTON AND PLACE ALL ACCESSORIES ON TOP 9 SEE DIFFERENCE S POWER LEAD 20A - FITTED WITH 13A FUSE 1 MANUFACTURERS VENDOR PLACE WITHIN CARTON ON TOP OF ACCESSORY TRAY 1 X EU/VDE 2610- 218309E006 & 1 X UK 2610- 318309E008 1 X EU/VDE 2610- 218309E006 & 1 X UK 261
18、0- 318309E008 1 X USA/CA 2610- 318309E007 1 X USA/CA 2610- 318309E007 10AP21746POWER PLUG WARNING TAG1 MANUFACTURERS VENDOR SEE DIFFERENCES DO NOT USE DO NOT USE WRAP AROUND MAINS CABLE WRAP AROUND MAINS CABLE 11STD LEAD STANDARD AZUR CONTROL BUS LEAD 1 MANUFACTURERS VENDOR PLACE WITHIN POLY TRAY RE
19、CESS 12AP32122 CA0545 AZUR 851W QUICK START GUIDE 1FORTEXPLACE WITHIN POLY END CAP CUT OUT 13AP32386 CA0545 AZUR 851W USER MANUAL 1FORTEXPLACE WITHIN POLY END CAP CUT OUT 14 FORTEX DESIGN CA0545 AZUR 851W POWER AMPLIFIER CARTON ASSEMBLY 1FORTEX CARTON PRINTED WITH ARTWORK AP31925 - PLACE ALL PARTS W
20、ITHIN 15 SEE DIFFERENCE S CA0545 AZUR 851W CARTON LABEL 1FORTEX REMOVE ADHESIVE COVER AND SITCK ON THE CARTONS WITHIN THE HIGHLIGHTED AREA USE AP31928 ARTWORK USE AP31927 ARTWORK USE AP31930 ARTWORK USE AP31929 ARTWORK 16 FORTEX DESIGN CA0545 AZUR 851W POWER AMPLIFIER OUTER CARTON ASSEMBLY 1FORTEX P
21、LACE ALL PARTS WITHIN A3 4321 A B C D E F G H 1234 A B C D E F G H COPYRIGHT 2012: AUDIO PARTNERSHIP 3 GALLERY COURT, HANKEY PLACE, LONDON SE1 4BB TEL: 0207 940 2200 FAX: 0207 940 2233 PROPRIETARY AND CONFIDENTIAL: TRANSMISSION OR REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE PRIOR WRITTEN PERMISSI
22、ON OF AUDIO PARTNERSHIP PLC IS PROHIBITED. GENERAL NOTES: TOLERANCES UNLESS OTHERWISE STATED: WHOLE Nos I.E. 75 0.5mm 1 DECIMAL I.E. 75.5 0.2mm 2 DECIMALS I.E. 75.75 0.1mm ANGULAR 0.5 ALL DIMENSIONS ARE IN mm DO NOT SCALE FROM THIS DRAWING. IF IN DOUBT ASK. THIRD ANGLE PROJECTION TITLE: DWG. NO. SHE
23、ET 1 OF 1SCALE: 1:4 CA0545 AZUR 851W POWER AMPLIFIER PACKAGING ASSEMBLY AP31847/2 Exploded view refDescriptionService p/n 13User manualPF627 4EPE packPF628 5EPE packPF628 8Top EPE packPF643 14Inner cartonPF629 16Outer cartonPF630 RadioFans.CN 收音机爱 好者资料库 4 Unit Exploded Diagram 1 23 4 5 17 12 11 18 1
24、9 15 13 14 6 16 A3 12345678 D D C B A A B C 12345678 VOLUME (mm 3): COPYRIGHT 2005: AUDIO PARTNERSHIP 3 GALLERY COURT, HANKEY PLACE, LONDON SE1 4BB TEL: 0207 940 2200 FAX: 0207 940 2233 PROPRIETARY AND CONFIDENTIAL: TRANSMISSION OR REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE PRIOR WRITTEN PERMISS
25、ION OF AUDIO PARTNERSHIP PLC IS PROHIBITED. GENERAL NOTES: TOLERANCES UNLESS OTHERWISE STATED: WHOLE Nos I.E. 75 0.5mm 1 DECIMAL I.E. 75.5 0.2mm 2 DECIMALS I.E. 75.75 0.1mm ANGULAR 0.5 ALL DIMENSIONS ARE IN mm DO NOT SCALE FROM THIS DRAWING. IF IN DOUBT ASK. THIRD ANGLE PROJECTION MASS (g): FINISH:
26、MATERIAL: TITLE: DWG. NO. SHEET 1 OF 2SCALE: 1:3 AP31846/1 CA0545 AZUR 851W POWER AMPLIFIER MAIN ASSEMBLY MUST USE ONLY RoHS COMPLIANT MATERIALS AND PROCESSES view refDescriptionService p/n 5Side panel mesh silverPF634 5Side panel mesh blackPF635 17Top panel silverPF636 17Top panel blackPF637 Servic
27、e Manual 5 851W Front Panel Exploded Assembly Drawing ref Description Service Part Number 1Front panel metal (Silver)PF632 1Front panel metal (Black)PF633 20Standby Transformer 110/115 V (US)PF625 20Standby Transformer 230V (Europe)PF626 1 6 2 14 15 3 4 11 9 12 13 8 16 7 20 21 18 10 17 5 22 23 25 24
28、 REV.EDITORCHKD BYDATEESR/ECN NO. 1NJB09/08/2012 2NJB14/03/2013 ADD WINDOW PROTECTIVE FILM COVER AND FILM PEEL OFF STICKER NO.DRG. NO. SAFETY CRITICAL PART DESCRIPTION/TYPEQTYMANUFACTURERBOM NOTESUK/EU SILVERUK/EU BLACKCU/JP SILVERCU/JP BLACK 1AP31412 CA0545 AZUR 851W POWER AMPLIFIER FRONT PANEL 1RU
29、IRUNSCREENED WITH ARTWORK AP31833 & AP31834 ANNODISED IN SILVER ANNODISED IN BLACK ANNODISED IN SILVER ANNODISED IN BLACK 2AP19987AZUR LIGHTGUIDE FOR 3 LEDS2HUANXIANG POSITION WITHIN FRONT PANEL REAR SURFACE LED HOLES AND USE SCREW TO FASTEN 3AP12931AZUR LIGHTGUIDE FOR 2 LEDS1HUANXIANG POSITION WITH
30、IN FRONT PANEL REAR SURFACE CENTRE HOLES AND USE SCREW TO FASTEN 4AP12931AZUR RANGE LIGHTGUIDE FOR 1 LED1HUANXIANGFIX TO FRONT PANEL USING FACTORY METHOD. 5STD FXGS SCREW M3 X 8 POZI PAN PLASTITE - SELF TAPPING 6ANY VENDORUSE TO FIX LIGHTGUIDES TO FRONT PANELBLACKBLACK NICKELBLACK 6SMH-10031063 PION
31、EER TECH PLASTIC STANDOFF SMH- 10031063 6PIONEER TECH USE TO MOUNT FRONT PANEL PCB - POSITON ON FRONT PANEL 7AP31376 CA0545 851W POWER AMPLIFIER FRONT PANEL PCB 1FORTEX POSITION ON FRONT PANEL STANDOFFS AND ALIGN HOLES - MADE FROM BOM AP31378 8STD-FXGSSCREW M3 X 16 POZI PH MC6FORTEX VENDOR USE TO FI
32、X FRONT PANEL PCB THROUGH THE STANDOFFS TO THE FRONT PANEL NICKELNICKELNICKELNICKEL 9AP199889mm TAC SWITCH BUTTON SHORT1HUANXIANGPOSITION WITHIN FRONT PANEL POWER BUTTON HOLEPAINTED SILVERPAINTED BLACKPAINTED SILVERPAINTED BLACK 10AP17425 800 SERIES 9mm TAC SWITCH BUTTON CUSHION 1FORTEX VENDOR REMOV
33、E ADHESIVE COVER AND STICK CAREFULLY ONTO THE BUTTON SHAFT FLANGE 11SMH-05531063PIONEER TECH STANDOFF SMH-055310632PIONEER TECH USE TO MOUNT ON/STANDBY PCB, POSITON ON FRONT PANEL 12 AP31376 SNAP OFF ! CA0545 851W POWER AMPLIFIER ON- STANDBY PCB 1FORTEX POSITION OVER FRONT PANEL STANDOFFS AND ALIGN
34、HOLES, MADE FROM BOM AP31378 13STD-FXGSSCREW M3 X 12 POZI P/H M/C2 MANUFACTURERS VENDOR USE TO FIX STANDBY PCB THROUGH STANDOFFS TO THE FRONT PANEL NICKELNICKELNICKELNICKEL 14AP19989 CA0348 840W POWER AMPLIFIER STANDBY TRANSFORMER METAL BRACKET 1FORTEX VENDORPOSITION OVER FRONT PANEL FIXING HOLES 15
35、STD-FXGSSCREW M3 X 6 POZI PAN M/C4FORTEX VENDORUSE TO FIX BRACKET TO FRONT PANELNICKELNICKELNICKELNICKEL 16 SUPPLIED WITH AP21975 & AP21976 ! Cambridge Audio 840C Transformer EVA Washer 1FORTEX VENDOR PLACE UNDER TRANSFORMER WASHER AND ONTO STANDBY TRANSFORMER BRACKET 17STD BOLTBOLT M6 X 301FORTEX VENDORUSE TO FIX STANDBY TRANSFORMER 18 SUPPLIED WITH TX CA0235 AZUR 840A SMALL TRANSFORMER WASHER 1FORTEX VENDORPOSITION ON STANDBY TRANSFORMER BOLT 20SEE DIFFERENCES! CA0545 AZUR 851W STANDBY TRANSFORMER 1FORTEX VENDORPOSITION ON STANDBY TRANSFORMER METAL BRACKET AP32049 230
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