340A Front Page - Acoustic · PDF fileCambridge Audio approved parts. 5. Any unauthorised...

21
Gallery Court Hankey Place London SE1 4BB UK Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233 340A Issue Date: 18 th June 2004 ________________________________________________________________________ SERVICE MANUAL ________________________________________________________________________ SPECIFICATIONS: Power Output 40W (into 8) 50W (into 4) Max Power Consumption 345W Total Harmonic Distortion 1kHz < 0.009% 20kHz < 0.09% Frequency Response (-1dB) 5Hz – 50kHz S to N Ration (unweighted) 99dB Slew Rate (into 8) 20V/uS Dimensions (HxWxD) mm 70 x 430 x 310 Inches 2.8 x 16.9 x 12.2 Weight Kg 6.2 Lbs 13.6 AP15844/1 1

Transcript of 340A Front Page - Acoustic · PDF fileCambridge Audio approved parts. 5. Any unauthorised...

Page 1: 340A Front Page - Acoustic · PDF fileCambridge Audio approved parts. 5. Any unauthorised design alterations or additions will void the ... Cambridge Azur 340A Intergrated Amplifier

Gallery Court Hankey Place London SE1 4BB UK Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233

340A Issue Date: 18th June 2004 ________________________________________________________________________

SERVICE MANUAL

________________________________________________________________________ SPECIFICATIONS: Power Output 40W (into 8Ω) 50W (into 4Ω) Max Power Consumption 345W

Total Harmonic Distortion 1kHz < 0.009% 20kHz < 0.09%

Frequency Response (-1dB) 5Hz – 50kHz

S to N Ration (unweighted) 99dB

Slew Rate (into 8Ω) 20V/uS

Dimensions (HxWxD) mm 70 x 430 x 310 Inches 2.8 x 16.9 x 12.2

Weight Kg 6.2

Lbs 13.6

AP15844/1

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340A SERVICE MANUAL

TABLE OF CONTENTS

Safety Precautions & Important Notes 3

Main Assembly BOM 4/5

Micro controller PCB Schematic (PIC’s/Switches/LED’s) 6

Micro controller PCB Layout (Top Side) 7

Micro controller PCB Layout (Bottom Side) 8

Front Panel PCB Assembly BOM 9

Main PCB Schematic (Input Select) 10

Main PCB Schematic (Power Amplifiers) 11

Main PCB Schematic (Power Supplies) 12 Main PCB Schematic (Tone Control) 13 Main PCB Layout (Top Side) 14 Main PCB Layout (Bottom Side) 15 Main PCB BOM 16-18 IC Pin Layout Details 19/20 Silver – Black Differences BOM 21

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SAFETY PRECAUTIONS & IMPORTANT NOTES

1.Check that the rear of the product indicates the correct supply voltage for you area.

2. The lighting flash with the arrowhead within an equilateral triangle is intended to alert the user or service agent to the presence of dangerous voltages within the product enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

3. The exclamation point within an equilateral triangle is intended to alert the user or service agent to the presence of important operating and maintenance (Servicing) instructions in the literature accompanying the appliance.

4. This product complies with EEC Low Voltage (73/23/EEC) and Electromagnetic Compatibility (89/336/EEC) Directives when used and serviced in accordance with this manual. For continued compliance all components marked safety and EMC critical must only be replaced by Cambridge Audio approved parts. 5. Any unauthorised design alterations or additions will void the manufacturer’s warranty; furthermore the manufacturer cannot accept responsibility for personal injury or property damage resulting therefrom. 6. When servicing, care should be taken to observe the original routing and dressing of the leads and it should be confirmed that they have been returned to normal after re-assembly. Notes on chip component replacement Never reuse a component that has been removed from a PCB Notice that the minus side of a tantalum capacitor may be damaged by heat

COPYRIGHT NOTICE. © 2005 Audio Partnership PLC. All rights reserved. Cambridge Audio and Azur are registered trademarks of Audio Partnership PLC. This document may not be reproduced, distributed, transmitted, displayed, published, or broadcast without the express written prior permission of Audio Partnership PLC. Alteration or removal of any trademark, copyright, or other notice from this content is prohibited. Information provided in this document is provided solely for the use of official service agents in repairing and servicing Audio Partnership PLC products.

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AP14861/4AP PART

No.DRAWING NO DESCRIPTION QTY COMMENTS

Chassis AssemblyAP14160/1 Bottom Panel 1

PY541 AP12652/2 Foot Moulding Silver 4 Position In Place on Bottom PanelPY544 AP12883/3 Foot Pad 4 Affix on Foot Using Adhesive Surface

M3 X 8 Plastite Pozi Pan 4 Fix Feet To Bottom Panel.7mm Plastic Support 9 Push Snap Fit On Bottom Panel7mm Plastic Support 4 Resting Under PCB fastened to Bottom Panel

AP14775/1 7mm Plastic Standoff ( Square Snap - In) 6 Fastening PCB to Bottom PanelM3 X 8 Plastite Pozi Pan 6 To hold PCB to Square snap-in Stand-offs

AP14561/3 Transformer toroidal 230V 1Transformer bolt M8 56mm thread length 1 Supplied with Transformer. Secures transformerDished transformer plate 70 mm diam 1 Supplied with Transformer. On top of transformerRubber Washer 2 Supplied with Transformer. One is fitted under the

transformer and one on the top, under dished washerM8 nut 1 Supplied with Transformer. Secures transformerM8 plain washer 1 Supplied with Transformer. Secures transformerM8 locking washer 1 Supplied with Transformer. Secures transformer

AP15528/1 Cambridge Toroidal 67mm label 1 Stick to top of dished transformer plate 70 mm diam.AP14862/2 Insulation Sheet 1 To Be Positioned Over Standoffs Under Power PCB

M4 X 12 Pozi Pan Machine Bolt 1 Fix Through Earthing Point hole on Bottom PanelM4 Nut Standard 1 Used To Fix Above BoltsM4 Lock Washer 1 For Earth BoltsEarth point label 1 Place next to earth point bolt on bottom of chassis

PCB Gerber AP14Main PCB Assembly BOM 1 Fixes onto the Bottom Panel With 7mm Plastic Standoffs. Built to BOM AP15173/2

Front Panel AssemblyAP14159/1 Sub Panel 1 Fasten in place between the Ledges of the Front Panel, Align

Up The Power Button HolesAP12931/1 Lightguide 3 Fasten To Subplate. Input select LEDsAP12931/1 Lightguide (half of) 0.5 Fasten To Subplate. Power LED

M3 X 6 Pozi Pan Stp Screw 4 Affixes Three Lightguide To SubplatePY638 AP14157/1 Front Panel (Punched And Printed) Silver 1 Extrusion Details AP12738* & Screened With Artwork

AP14826/1 & AP14828/2AP12935/1 IR Lens 1 Glued In Place On The Front Panel

M3 X 6 C/S Pozi Machine Screw 7 Fasten The Sub Plate to the Front Panel. Only 7 screws are fitted out of a possible 8. See drawing AP15536/1

PCB Gerber AP14IR PCB Assembly (part of F/P PCB assembly) 1 Fitted onto the Front Panel, bom is AP15185/2

Washer Nylon M3, 1mm Thk 1 Fitted between Front Panel and IR PCBM2.6 x 4mm Pan hd Poz Taptite 1 Use to fix IR PCB onto SubPanel

AP12934/1 7mm TAC Switch Cushion 6 Position on the 7mm tact switch Buttons, down the main shaft affix using adhesive provided on the cushion.

AP12925/1 7mm TAC Switch Button 6 Position In Place On The Front PanelAP12926/2 7mm Push Switch Button 2 Fitted to SW1 & 2 on main PCBPCB Gerber AP14Front Panel & MicroController PCB Assembly

BOM1 Fixes onto the Sub Panel With M3 M/C Screws. Built to BOM

AP 15185/2M3 X 6 Pozi Pan Machine Screw 7 Used For Fixing The Front Panel Pcb's To The Subplate

Standoff'sSide Panel Assembly

AP12725/2 Pressed Side Panel (2 Ridge) 2AP12727/1 Front Plastic Support (2 Ridge With Captive

M2.6 Nuts)2 Position at Front within Side Panels

AP12728/1 Rear Plastic Support (2 Ridge With Captive M2.6 Nuts)

2 Position at Rear within Side Panels

M2.6 X 8 C/S Pozi Plastite 8 To Affix Side Panels To Plastic InsertsRear Panel Assembly

AP14162/2 Rear Panel Printed 1 Screened With Artwork AP14830/3M3 X 10 Pozi Pan Plastite 8 To fix speaker terminal and Phono sockets connectors to

Rear PanelM4 X 8 Pozi Pan Plastite 2 To fix IEC Power connector to Rear Panel

Cambridge Azur 340A Main Assembly BOM

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AP PART No.

DRAWING NO DESCRIPTION QTY COMMENTS

Final assemblyAP11879/3 Opus Control Box Powerswitch 1 Position in Place on the Front PanelAP14819/1 Push Switch Bar Extension 1 Affix and glue to Power BarCD4P AB05a Power Bar 1 Fitted to SW3 on main PCBAP15512/1 Front Panel Insulation Sheet 1 Attach to main PCB with two tie-wraps

Tie-wraps (plastic ties) Width 2.5mm 2 Attach insulation strip to main PCBPY592 AP10209/3 Cambridge Selector Knob Mk3 Silver 3

AP10224/1 Cambridge Knob Insert Mk2 3 Insert Into Selector KnobsPY590 AP12750/2 Cambridge New Range Amp Volume Knob Silver 1

AP13361/1 A600 Volume Knob Blue Plastic Insert 1 Insert Into Volume KnobAP13360/1 A600 Volume Knob Aluminium Skin 1 Glued and taped In Place On Volume Knob

M3 X 10 Pozi Pan Plastite 4 To fix rear panel to side panelsM2.6 X 6 Pozi Pan Machine Screw 12 To fix Bottom Panel To Side, Front And Rear PanelsM2.6 x ??? 4 To fix Bottom Panel To Side Panels (at corners)

AP14865/1 Cambridge Azur 340A Microcontroller Cableform

1 From Main PCB J2 to Front Panel PCB CN2

AP14896/1 Cambridge Azur 340A Volume Control Cableform

1 From Front Panel PCB CN5 to Volume Pot Motor

AP15204/1 Cambridge Azur 340A Earth Lead 1 From earth pin of IEC Scoket (CN3) on main PCB to Chassis earth stud

M4 Nut Standard 1 Used To Fix earth lead to earth studM4 Lock Washer 1 For above nutLED wireform is attached to main PCB Glue power LED into light-guideLidding

AP13340/1 Lidding Tape For Front And Rear Panels 2 Fix To The Correct Surfaces For Lid AP13342/1 Lidding Tape For Side Panels 2 Fix To The Correct Surfaces For Lid

PY640 AP14161/1 340A Top Panel (Silver) 1 Position Top Of The ProductPY516 M2.6 X 6 C/S Torx Machine Screw (Silver) 8 To Affix Top Panel to plastic Inserts, Side, Rear and Front

PanelPackagingSerial Number Label, Blank (6.5X35.5mm) 1 print with serial number label and attached to rear panel

AP13612/1 Azur 2 Ridge Woven Bag 1 Pack 340A Unit InsideAP13504/2 Poly Endcap Packaging 2AP13613/1 Azur Woven Bag For Remote Control 1 Pack Remote Control Inside,

Azur Remote Control Complete. Model No RC-340AC/540AC/640AC

1 Fit into Poly Endcap, buttons to face polystyrene, Packing in Rebate Provided

AAA Alkaline Batteries 3 For Remote. Place In Instruction Manual PolybagPY637 AP15509/1 340A Amp Instruction Manual 1

Polybag 173X260X4C mm 1 For Instruction Manual and Remote Batteries1830mm AC IEC Power Cord Set BS Standard Fused 3 AMP

1 Must Be Bs Approved

AP13505/1 Carton Packaging With Handle 1 Printed To Artwork AP13716/1AP14696/1 Carton Label (Model No.) 1 For Box

Blue Tape Seal For Cambridge Carton 1

NOTES: Issue 1 - 15.03.2004

Issue 2 - 23.04.2004

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Cambridge Azur 340A Intergrated Amplifier

AP14518/1 Microcontroller PCB Schematic (PIC's/Switches/LED's)

RC617

RC516

RC415

RC314

RC213

RC112

RC011

OSC210

RA02

RA24

MCLR/Vpp1

RA13

RA35

RB122

RB728

RA46

RA57

Vss28

OSC19

RB223

RB324

RB627

RB425

RB526

Vss19

RC718

Vdd20

RB021

U1

PIC16F72

CRS1

FREQ=4MHz

12

CN5

H2 2.54mm 90

C6100n

FIN1

GND12

RIN3

NC4

GND25

VCC6

OUT27

COM8

OUT19

U2

BA6218

+5V

DGND

DGND

DGND

+5V

DGND

C5100n

R4220R

+5V

D1CHANNEL LED

D2CHANNEL LED

D3CHANNEL LED

D4CHANNEL LED

D5CHANNEL LED

D6CHANNEL LED

SW2

CD

SW3

TUNER/DAB

SW5

AV/MD

SW1

AUX/PHONO

SW6

TAPE MON

SW4

DVD

+5V3

OPT1

GND2

U3

TSOP18 IR RECEI

C1100n

strobe

dataclockclock

datastrobe

vol up

vol down

vol upvol down

C347u 16V

R3220R

C4100n

12345678

CN2

H8 2.54mm 90

DGND

+5V

IR RECEIVER

AUX/PHONO CD TUNER/DAB TAPE MONDVD AV/MD

123

CN3

CONN-H3

123

CN4

CONN-H3

MOTOR CONTROL

CONN TO MAIN PCB

MUTE

+5V

DGND

PORT B HAS WEAK PULLUPS 250uA typ

IN-CIRCUIT PROGRAMMING CONNECTOR

R1100K

+5V

DGND

+5VGND

Vpp

CLK

123456

CN1

ICP

GND

Data I/O

DGND

MUTE

TO MOTOR

VOLUME POT

+5V +5V

OUTPUT RELAY

IR IN

DC OFFSET

OUTPUT RELAY

R247R

HI = NORMAL

C2

10U 16V SM EL

TSOP1835/37

6 mA

86-756-8687998

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Cambridge Azur 340A Intergrated Amplifier

AP14518/1 Microcontroller PCB Board Layout (Top Side)

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Cambridge Azur 340A Intergrated Amplifier

AP14518/1 Micrcontroller PCB Board Layout (Bottom Side)

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AP15185/3AP PART

No.DRAWING No DESCRIPTION QTY DESIGNATOR COMMENTS

47R Resistor 0.25W 1% metal film 1 R2220R Resistor 0.25W 1% metal film 2 R3, R4100K Resistor 0.25W 1% metal film 1 R1100nF Ceramic NP0 or C0G 10% 4 C1, C4-C647uF 16V Radial Electrolytic 1 C3

PY634 PIC16F72-I/SP 1 U1 Programmed with AP14904/X

Version label for PIC 1 U1Print with latest software version number and stick on PIC.

PY260 BA6218 MOTOR DRIVE IC1 U2

As used in 540A. 4162-180002-300 SIL-8 package

PD092 TSOP18 IR RECEIVER MODULE (VISHAY) 1 U3 As used in 540A 3001-183600-001PY064 FLAT TOP BLUE LEDS (AS PER CURRENT

CAMBRIDGE)6 D1-D6

Please use flat top LED at standard Azur height

ICP Picoplex PF-50 6-way male header 1 CN1 VerticalH8 2.54mm 90 1 CN2 Right-angle connector 8-wayH2 2.54mm 90 1 CN5 Right-angle connector 2-wayH3 2.54mm 90 1 CN3 Right-angle connector 3-way

AP14897/1 Azur 340A IR PCB cable 1

2400-020200-000 Tactile Switch 6 SW1, 2, 3, 4, 5, 6As used on 540A, CD, Tuner, AV, Phono/Aux, Tape/Mon, DVD

Ceramic Resonator F=4MHz 1 CRS110mm long Wire link 11 LK1-11 AP14519/1 Blank PCB 1

Note:AP14518/1-B is the IR PCB assembly

Cambridge Azur 340A Front Panel PCB BOM

AP14518/1-A is the switch and micro controller PCB assembly

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Cambridge Azur 340A Intergrated Amplifier

AP14476/3 Main PCB Schematic (Input Select)

21

CN

4:A

QU

AD

PH

ON

O

3C

N4:

BQ

UA

D P

HO

NO

54

CN

4:C

QU

AD

PH

ON

O

6C

N4:

DQ

UA

D P

HO

NO

21

CN

5:A

QU

AD

PH

ON

O

3C

N5:

BQ

UA

D P

HO

NO

54

CN

5:C

QU

AD

PH

ON

O

6C

N5:

DQ

UA

D P

HO

NO

21

CN

8:A

QU

AD

PH

ON

O

3C

N8:

BQ

UA

D P

HO

NO

54

CN

8:C

QU

AD

PH

ON

O

6C

N8:

DQ

UA

D P

HO

NO

3

21

84

U1:A

NE5532

5

67

U1:B

NE5532

-15V

+15V

-15V +15V

R5220K

R6220K

R7100R

R10

100R

R14

100R

R15220K

R16220K

R17

100R

R18

1K

R19

100R

R21220K

R22220K

R23220K

R24

100R

R25

100R

R26

100R

R27

100R

R28

100R

R29

1K

R30220K

R31220K

C4

47n poly

C5

47n poly C7

47n poly

C8

47n poly

C12

22p

C13

22p

R32220K

R33

10k

R34

10k

R35

10k

R36

10k

R37100K

R38100K

R39100K

R40100K

R41

100R

R46

100R

R47

100R

C26

100nF 100V

L CH IN

R CH IN

R50220K

R51220K

21

CN9:ADUAL PHONO3

CN9:BDUAL PHONO

LEFT RIGHT

TA

PE R

ETU

RN

RIG

HT

TA

PE R

ETU

RN

LEF

T

12345678

J2

H8 2.54mm 90

+5V

INPUT/TAPE SELECT SWITCH

MUTE

MICROCONTROLLERBOARD CONNECTOR

OUTPUT RELAYDC OFFSET

DATACLOCK

STROBE

2 3 5 6

A B C D

LR LR

TA

PE O

UT

R

AU

X R

CD

TU

NER

/DA

B

DV

D

AV

/MDAU

X L

CD

TA

PE O

UT

L

TU

NER

/DA

B

DV

D

AV

/MD

B T B T

Vss1

L-S12

L-S23

L-S34

L-COM15

L-S46

L-S57

L-S68

L-COM29

L-S710

L-S811

L-COM312

ST13

GND14

Vdd28

R-S127

R-S226

R-S325

R-COM124

R-S423

R-S522

R-S621

R-COM220

R-S719

R-S818

R-COM317

DATA16

CLK15

U4

TC9163

INPUT BUFFER

+ 6 dB

MAINS GND

C14

10U 16V

C25

10U 16V

86-756-8687998

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Cambridge Azur 340A Intergrated Amplifier

AP14476/3 Main PCB Schematic (Power Amplifiers)

R81K

+10

-9

OUT3

V-

4

GND

7

MUTE

8

V+

1

V+2

5

NC2

6

NC

2

NC3

11 U6

LM3886

C2100nF 100V

L1

+28V

-28V

R927K

R48

RES2W 2R2

R56RES2W 10R

R57 27K

R5822K

C3

10U 16V

C2247U 16V

C23100U 16V NO FIT

POWER AMPLIFIER LEFT

R651K

+10

-9

OUT3

V-

4

GND

7

MUTE

8

V+

1

V+2

5

NC2

6

NC

2

NC3

11 U7

LM3886

C36100nF 100V

L2

+28V

-28V R6627K

R67

RES2W 2R2

R68RES2W 10R

R69 27K

R7022K

C37

10U 16V

C3847U 16V

C39100U 16V NO FIT

POWER AMPLIFIER RIGHT

POWER AMP LEFT

POWER AMP RIGHT

C40100U 50V HR

C41100U 50V HR

C42100U 50V HR

C43

100U 50V HR

MUTE

R7147K

Q1BC327

+5V

R7247K

R7347K

R7447K

Q2BC337

AMP MUTE

AMP MUTE

-28V

HI = MUTE

SW2:ASW-DPDT

SW2:B

SW-DPDT

SPEAKER B ON/OFF

RSW1

RSW2

R

L

GND

LSW1

LSW2

2

4

3

1

7

8

5

CN1

HEADPHONE JACK

R61

220R 3W C

R62470R 1W C

R63

220R 3W C

R64470R 1W C

12

CN2:ASPKR 4-WAY

43

CN2:B

SPKR 4-WAY

56

CN2:CSPKR 4-WAY

87

CN2:D

SPKR 4-WAY

LEFT: SPEAKER A

LEFT: SPEAKER B

RIGHT

RIGHT

34

5

RL1:B

12V 8A RELAY

67

8

RL1:C

12V 8A RELAY

1

2

RL1:A

12V 8A RELAY

360RQ3BC337

D91N4001

R75220R1/2 W

+20V

R76

4K7

OUTPUT RELAY

R77

47K

R78

47K

SPEAKER A

SPEAKER B

Q4BC327

Q5BC337

D10

1N4148

D11

1N4148

R791K8

R803K3

D12

1N4148

D13

1N4148

D141N4148

D151N4148

-15V

+15V

DC OFFSET

R123K9

R132K2 D16

5V1

HI = NORMAL

C5422U 50V NP

C5522U 50V NP

DC OFFSET DETECT

40W 8 Ohms= 17.9 Vrms

R53 270K

R55 270K

R81

470R

R82

470R

TIP = LEFTRING = RIGHT

86-756-8687998

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Cambridge Azur 340A Intergrated Amplifier

AP14476/3 Main PCB Schematic (Power Supplies)

earth

C246800uF-50V

C276800uF-50V

+28V

-28V

D1

1N5402

D2

1N5402

D3

1N5402

D4

1N5402

F1

T6A3 ALLVD!

F2

T6A3 ALLVD!

0V

23V

23V

F3

20MM T6.3AL or 3.15AL

TO MAINS TRANSFORMER

J5

BLUE/WHITE

J6

BROWN/BLACK

L

N

E

CN3

IEC-SOC

C34X1 10n

C35X1 10n

C44X2 470N SUPPRESSION

FROM TRANSFORMER

F4

20MM T1AL

F5

20MM T1AL

12 SW3

KDC-A04-10

D5

1N4002

D6

1N4002

D7

1N4002

D8

1N4002

J7

TERMINALgreen

J9

TERMINALpurple

J10

TERMINALblue

C451000u 35V

C46470u 35V

VI1

VO3

GN

D2

U57805

C4747u 16VC48

47n poly

VI1

VO3

GN

D2

U87815

VI2

VO3

GN

D1

U97915

C49100u 25V

C50100u 25V

+5V

C5147n poly

C5247n poly

C5347n poly

+15V

-15V

FROM TRANSFORMER

+20V

J3

TERMINAL

J4

TERMINAL

J8

TERMINAL

MAINS SWITCH PCB

OPAMP SUPPLY

MICROCONTROLLER SUPPLY

POWER AMP SUPPLY

C28X2 470N SUPPRESSION

ALTERNATIVE POSITIONS FORX-CAPS WITH DIFFERENT LEAD PITCHES

MAINS GND

To sheet 1

R491K8

P1PAD

P2PAD

POWER LED

86-756-8687998

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Cambridge Azur 340A Intergrated Amplifier

AP14476/3 Main PCB Schematic (Tone Control)

C1330p poly

R122k

R24k7

R34k7

R48k2

R118k2

C6150n poly

C9

10p

SW1:A

SW-DPDTDEFEAT

-15V

+15V

C10330p poly

R2022k

R424k7

R434k7

R448k2

R458k2

C11150n poly

C15

10p

SW1:B

SW-DPDTDEFEAT

C16

47n poly

C17

47n poly

3

21

84

U2:A

NE5532

5

67

U2:B

NE5532

R CH IN

L CH IN

POWER AMP RIGHT

POWER AMP LEFT

R52150k

R54150k

R59150k

R60150k

13

2

VR1:A20K MOTORISED DUAL POT

46

5

VR1:B

20K MOTORISED DUAL POT

46

5

VR4:B

MN20K BALANCE

13

2

VR4:A

MN20K BALANCE

13

2

VR2:AB20K LINEAR

46

5

VR2:BB20K LINEAR

13

2

VR3:AB20K LINEAR

46

5VR3:BB20K LINEAR

ZERO LOSSWHEN CENTRAL

TONE CONTROL VOLUME/BALANCE CONTROL

TREBLE

BASS

TREBLE

BASS

C19

47u 16V

C20

47u 16V

C29

47u 16V

C32

47u 16V

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Cambridge Azur 340A Intergrated Amplifier

AP14476/4 Main PCB Board Layout (Top Side)

86-756-8687998

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Cambridge Azur 340A Intergrated Amplifier

AP14476/4 Main PCB Board Layout (Bottom Side)

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AP151734AP PART

No.DRAWING NO DESCRIPTION QTY DESIGNATOR NOTES

2R2 2W Metal Film 2 R48, R67 Stand off PCB by 5mm10R 2W Metal Film 2 R56, R68 Stand off PCB by 5mm100R 0.25 W 1% Metal Film 13 R7, R10, R14, R17, R19,

R24-R28, R41, R46, R47220R 0.5 W Metal Film 1 R75220R 3W Metal Film 2 R61, R63 Stand off PCB by 5mm470R 0.25 W 1% Metal Film 2 R81, R82470R 1W Metal Film 2 R62, R64 Stand off PCB by 5mm1K 0.25 W 1% Metal Film 4 R8, R18, R29, R651K8 0.25 W 1% Metal Film 2 R49, R792K2 0.25 W 1% Metal Film 1 R133K3 0.25 W 1% Metal Film 1 R803K9 0.25 W 1% Metal Film 1 R124k7 0.25 W 1% Metal Film 5 R2, R3, R42, R43, R768k2 0.25 W 1% Metal Film 4 R4, R11, R44, R4510k 0.25 W 1% Metal Film 4 R33-R3622k 0.25 W 1% Metal Film 4 R1, R20, R58, R7027K 0.25 W 1% Metal Film 4 R9, R57, R66, R6947K 0.25 W 1% Metal Film 6 R71-R74, R77, R78100K 0.25 W 1% Metal Film 4 R37-R40150k 0.25 W 1% Metal Film 4 R52, R54, R59, R60220K 0.25 W 1% Metal Film 12 R5, R6, R15, R16, R21-R23,

R30-R32, R50, R51270K 0.25 W 1% Metal Film 2 R53, R5522pF Ceramic NPO. Pitch= 3.0mm 2 C12, C1310pF Ceramic NPO. Pitch= 3.0mm 2 C9, C15330pF Polyester. Pitch= 5.0mm 2 C1, C1010nF X1 Mains rated Ceramic. Pitch=

5.0mm2 C34, C35 EMC Suppression

47nF Polyester Pitch= 5.0mm 10 C4, C5, C7, C8, C16, C17, C48, C51-C53

100nF Ceramic 100V Pitch= 5.0mm 3 C2, C26, C36150nF Polyester Pitch= 5.0mm 2 C6, C11470nF X2 Mains rated Polypropylene.

Pitch 22.5mm1 C28 EMC. C44 is alternative fit for 27.5 mm

pitch10uF Electrolytic 16V Pitch= 2.0mm 4 C3, C14, C25, C3722uF Electrolytic 50V NP Pitch= 2.0mm 2 C54, C55

47uF Electrolytic 16V Pitch= 2.5mm 6 C19, C20, C22, C29, C32, C38, C47

100uF Electrolytic 50V HR Pitch= 5.0mm 4 C40-C43

100uF Electrolytic 25V Pitch= 2.5mm 2 C49, C50470uF Electrolytic 35V Pitch= 5.0mm 1 C461000uF Electrolytic 35V Pitch= 5.0mm 1 C456800uF Cambridge Audio Branded

Electrolytic 50V Pitch= 10.0mm2 C24, C27 Glue both capacitors to PCB

PY259 NE5532 Dual Low Noise Operational Amplifier

2 U1,U2 DIL package

PY476 TC9163AF Input Switching 1 U4 surface mount package7805T Voltage Regulator +5V 1 U5 TO220 package

PY644 LM3886T High Performance Audio Power Amplifier

2 U6,U7

7815T Voltage Regulator +15V 1 U8 TO220 package7915T Voltage Regulator -15V 1 U9 TO220 package

PY219 BC327 PNP Small Signal 2 Q1, Q4PY214 BC337 NPN Small Signal 3 Q2, Q3, Q5

Cambridge Azur 340A Main PCB BOM

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AP PART No.

DRAWING NO DESCRIPTION QTY DESIGNATOR NOTES

1N5402 General Purpose Rectifier 4 D1-D41N4002 General Purpose Rectifier 4 D5-D81N4001 General Purpose Rectifier 1 D91N4148 High Speed Signal 6 D10-D15BZX85-C5V1 Zener 400mW 1 D16

PY649 T6.3AL 6.3A time delay Fuse-20mm low breaking capacity

2 F1, F2 Secondary fuses

PY595 T3.15AL 3.15A time delay Fuse-20mm low breaking capacity

1 F3 230V mains fuse

PY647 T1AL 1A time delay Fuse-20mm low breaking capacity

2 F4, F5 Secondary fuses

4031-050100-001 Fuseholder 20mm 5 F1, 2, 3, 4, 54034-000030-000 Fuseholder cover 1 F3 Place on mains fuse holder F3H8 2.54mm CONN-SIL8 1 J2 Vertical connectorBLUE/WHITE eyelet 1 J5 Terminate txfmr mains leadBROWN/BLACK eyelet 1 J6 Terminate txfmr mains lead25X7MM INDUCTOR

3203-874801-000 2 L1, L2 As 540A amplifier

PY594 12V coil, 8A 250VACMassuse Me-11 012-2Z4

Relay-s 1 RL1

PY004 20K MOTORISED DUAL POT

Pot-Dual-Motor 1 VR1 As 540A amplifier. IMPORTANT leads must be cropped close to PCB

PY003 B20K LINEAR Pot-Dual 2 VR2, VR3 As 540A amplifier. IMPORTANT leads must be cropped close to PCB

PY005 MN20K BALANCE Pot-Dual 1 VR4 As 540A amplifier. IMPORTANT leads must be cropped close to PCB

M3 x 10 Taptite Power Amp IC Fix Screw 2 Fix IC tab to heatsinkM3 Power Amp IC Insulating Bush 2 Insulate fix screw from IC tabPrecut washer type K177-NA-617

Power Amp IC Insulating Washer 2 K177 is the material type. NA means "no adhesive". Self-adhesive version would be technically acceptable.

Dwg no: AP14899/1 Power Amp Heatsinks 2 Black anodised6510-150310-000 (Pressure board)

Power Amp IC Bracket 2 Holds IC body against heatsink

M3 x 6 Taptite Power Amp IC Bracket Fix Screws 4 Fix bracket to heatsink

Screw M3.5x10mm BTB thread, Binding Head, cross recess, black plated

Heatsink Fixing Screws 4 7003-510003-111

Metal Washer OD=10mm ID=3.5mm Thk=0.8mm

Heatsink Fixing Washers 4 7103-610008-022

M4 x 12 machine screw

IEC socket fix screws 2 Fix IEC socket to PCB

M4 locking washer IEC socket fixing 2 Fix IEC socket to PCBM4 nut IEC socket fixing 2 Fix IEC socket to PCBAP15508/1 Power LED wireform 1 Solder to pads P1, P210mm long Wire link 37 LK11-22, LK29-37, LK39-

5625mm long Wire link 19 LK 1-10, LK 23-28, LK36-

38PY646 2330-005901-300 Headphone Jack 1 CN1 As 540A amplifierPY647 WP8-21A Spkr 4-Way 1 CN2 Note: red terminals at top. Modified

mechanically as per our instructions.PY226 2336-003910-002 IEC-Socket 1 CN3 As 540A amplifierPY036 2330-006911-021 Quad Phono 3 CN4, CN5, CN8 As 540A amplifier, Zuanbao AV4-8.4-9

PY035 AV2-8.4-9 Dual Phono 1 CN9

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AP PART No.

DRAWING NO DESCRIPTION QTY DESIGNATOR NOTES

PY645 2402-020200-010 SW-DPDT 2 SW1, SW2 As 540A amplifierPY227 KDC-A04-10 Mains switch 10A 250V TV-8 1 SW3 mains switch

Gerber AP14477/4 1 Schematic AP14476/4Gerber file is AP14477/4PCB Construction details AP14478/4

Please mark board POP REV A

NOTES:

Note 4: All capacitors 85 degC rating or above

Note 1: C23, C39 Components not fittedNote 2: All resistors larger than 0.25W to be stood off the board by 5mmNote 3: All resistors 1% tolerance

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Cambridge Audio Azur 340A Amplifier IC Pin Layout Details

Front Panel PCB PIC16F72-I/SP (U1)

BA6218 (U2)

TSOP1836/37 (U3)

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Main PCB NE5532 (U1 & U2)

TC9163AF (U4)

LM3886T (U6 & U7)

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AP158421

AP PART No.

DRAWING NO

DESCRIPTION QTY COMMENTS

CARTON LABEL (MODEL NO.) UK BLACK 1 FOR BOXPY593 CAMBRIDGE SELECTOR KNOB MK3 Black 3PY591 CAMBRIDGE NEW RANGE AMP VOLUME KNOB Black 1

PY639CAMBRIDGE FRONT PANEL (PUNCHED AND PRINTED) Black 1 SCREENED WITH ARTWORK AP13679/2

CAMBRIDGE NEW RANGE AMP 7mm TAC SWITCH BUTTON 6 POSITION IN PLACE ON THE FRONT PANELCAMBRIDGE NEW RANGE AMP 7mm PUSH SWITCH BUTTON 2 POSITION IN PLACE ON THE FRONT PANEL

PY531 CAMBRIDGE NEW RANGE FOOT MOULDING 4 POSITION IN PLACE ON BOTTOM PANELPY641 340A Top Panel (Black) 1 POSITION ON TOP OF THE PRODUCTPY515 M2.6 x 8 MC Torx Recessed Black 8 TOP PANEL SCREWS

Cambridge Azur 340A Silver - Black Diffrences BOM

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