Cambridge Audio Azur 840W Service Manual Download | Manualshive

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T1AL

Slow Blow Fuse

3

F1-F3

20mm

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Fuse Holder Cover

3

F1-F3

PTF78 (or equivalent)

20mm Pitch

4034-780000E000

Cambridge Audio Azur 840W Power PCB (AP20549/4)

RESISTORS

CAPACITORS

CONNECTORS

DIODES

FUSES

Note: resistors, capacitors and other 'generic' components are

not usually stocked by the manufacturer. Please obtain these locally.

23

Fuse Holder Cover

3

F1-F3

PTF78 (or equivalent)

20mm Pitch

4034-780000E000

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TRANSISTORS

INTEGRATED CIRCUITS

Note: resistors, capacitors and other 'generic' components are

not usually stocked by the manufacturer. Please obtain these locally.

14

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Summary of Contents for Azur 840W

Page 1: ... 1kHz 0 005 20Hz 20kHz Frequency Response 5Hz 80kHz 1dB S N ration ref 1W 8 Ohm 90 dB unweighted Sensitivity Stereo or Mono for 200W 8 Ohms 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 In 5 12V AC or DC Trigger Out 12V DC 100mA Power consum...

Page 2: ..._____ 13 Power Board Bill of Materials 14 Power Board Bill of Materials Updated Revision ________________________________ 15 Input PCB Mains Circuitry Schematic 16 Input PCB Mains Circuitry Schematic Revision 1 ______________________________ 17 Input PCB Audio Right Schematic 18 Input PCB Audio Right Schematic Revision 1 _________________________________ 19 Input PCB Mircrocontroller Schematic 20 ...

Page 3: ...Bill of Materials 35 Control Bus Bill of Materials Updated Revision _________________________________ 36 Mode Switch PCB Schematic 37 Mode Switch PCB Layout 38 Mode Switch PCB Layout Revision 1 _________________________________________ 39 Mode Switch Bill of Materials 40 Mode Switch Bill of Materials Updated Revision _________________________ _______41 On Standby Switch Schematic 42 On Standby Swi...

Page 4: ... at high volume levels when the output signal attempts to go outside the maximum voltage that the connected pre amplifier can provide causing the tops of the signal to flatten off When the 840W detects clipping this LED will briefly flash If the clipping reaches a dangerous amount that could damage the amplifier or attached speakers the unit will then go into protection Bridged This LED indicates ...

Page 5: ...When using either the balanced or unbalanced input make sure that no cables or equipment are connected to the unused input as this may degrade operation The unused input does not need to be terminated and this should not be done Balanced Audio For connection to the balanced XLR outputs of suitable pre amplifiers that have this kind of output such as our own 840E model The pre amplifier used should...

Page 6: ...ater or other liquids No objects filled with liquid such as vases shall be placed on the unit The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of un insulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an ...

Page 7: ...gives a guide to how the DC Bias voltage as measured at CN1 varies over time when the bias is set correctly Thus if the bias is being set 9 minutes after turning the module on 9 minutes is the average duration of this test procedure setting the bias to 15mV will result in the correct value of 14 mV being reached during long term operation Time in minutes Temp C Main heat sink Temp C Driver Heat si...

Page 8: ...8 ...

Page 9: ...IDE PANEL SILVER PAINTED 5 PY1465 6584 150009E000 01 Azur 840W TOP PANEL BLACK PAINTED 5 PY1463 6584 150009E000 02 Azur 840W TOP PANEL SILVER PAINTED 6 PY1466 6584 150027E000 01 Azur 840W FRONT PANEL B ARTW ORK m etalwork only 6 PY1467 6584 150027E000A01 Azur 840W FRONT PANEL S ARTW ORK m etalwork only PY1468 8584 035000E301 Azur 840W BLACK FRONT PANEL ASSY REV A PY1469 8584 035010E301 Azur 840W S...

Page 10: ...70R 1 4W Metal Film R8 470R 1 4W Metal Film R2 470R 1 4W Metal Film R1 470R 1 4W Metal Film R3 470R 1 4W Metal Film R4 470R 1 4W Metal Film R5 270R 1 4W Metal Film R6 270R 1 4W Metal Film R9 2R2 1 2W Carbon F3 T1AL Slow Blow Fuse F1 T1AL Slow Blow Fuse F2 T1AL Slow Blow Fuse C1 100nF 100V Mono Ceramic C2 100nF 100V Mono Ceramic C4 100nF 100V Mono Ceramic C3 100nF 100V Mono Ceramic C5 100nF 100V Mo...

Page 11: ...206 Thick Film 470R R4 1206 Thick Film 470R R5 1206 Thick Film 270R R6 1206 Thick Film 270R R9 2R2 1 2W Carbon F3 T1AL Slow Blow Fuse F1 T1AL Slow Blow Fuse F2 T1AL Slow Blow Fuse C1 Met Polyester 39nF 250V C2 Met Polyester 39nF 250V C4 Met Polyester 39nF 250V C3 Met Polyester 39nF 250V C5 Met Polyester 39nF 250V C27 Met Polyester 39nF 250V C6 Met Polyester 39nF 250V C7 Met Polyester 39nF 250V C15...

Page 12: ...Cambridge Audio Azur 840W Power Amp Power PCB Layout 12 ...

Page 13: ...D7 D8 R3 R2 R4 R1 CN1 R5 R6 R7 R8 F3 C 17 D 13 D 14 D 15 D 16 C 15 U1 F1 F2 C 23 D9 D 10 D 11 D 12 C 11 C 25 U2 U3 R 10 D 17 C8 C9 C 10 C 16 C 12 C 24 R9 R 11 R 12 Q1 Q2 R 13 R 14 R 15 CN2 J2 J3 J4 J5 P4 P5 P6 J1 Q3 D 18 D 19 C5 C6 C7 C 21 C 22 C 27 C1 C2 C3 C4 C 18 C 26 C 19 C 28 C 20 F B1 C 13 C 14 13 ...

Page 14: ...0 2 7 4 2 0 1 1 a i D m m 6 1 0 2 4 2 C 6 1 C 2 c i t y l o r t c e l E V 5 2 F u 0 0 7 4 6 1 1 0 0 E 1 0 5 6 1 0 1 0 3 2 e l o H h g u o r h T 6 1 V S S 0 0 1 D 1 N C 1 r o t c e n n o C C F F y a W 6 1 7 1 4 0 0 0 0 1 3 0 0 0 0 3 2 h c t i P m m 5 2 A H X B 3 B 2 N C 1 r e d a e H t h g i a r t S y a W 3 8 1 B C P o t e s a b D E L g n i c a p s m m 8 3 0 0 0 3 0 0 0 0 0 0 1 3 0 3 1 M 3 6 9 B F ...

Page 15: ...C 6 1 C 2 c i t y l o r t c e l E V 5 2 F u 0 0 7 4 8 1 1 0 0 E 1 0 5 6 1 0 1 0 3 2 e l o H h g u o r h T 6 1 V S S 0 0 1 D 1 N C 1 r o t c e n n o C C F F y a W 6 1 9 1 4 0 0 0 0 1 3 0 0 0 0 3 2 h c t i P m m 5 2 A H X B 3 B 2 N C 1 r e d a e H t h g i a r t S y a W 3 0 2 3 0 0 0 3 0 0 0 0 0 0 1 3 0 3 1 M 3 6 9 B F H 8 D 1 D 8 m m 3 D E L r u z A e u l B 1 2 8mm spacing LED base to PCB 2 0 0 E 0 ...

Page 16: ... MAINS ON OFF RELAY MAINS INRUSH RELAY J8 LIVE NEUTRAL SCREEN F1 T15AH 20mm for 230V T25A 32mm for 115V Slow Blow Fuse F2 T2AL for 230V T4AL for 115V Slow Blow Fuse LIVE NEUTRAL R65 22R 10W WireWound R64 22R 10W WireWound C36 470nF Mains Rated X2 Safety Critical C37 10nF 300V X1 Mains Rated Safety Critical C38 10nF 300V X1 Mains Rated Safety Critical C58 10nF 300V X1 Mains Rated Safety Critical C5...

Page 17: ...UND 3 5 RL2 B ME19 009HS2 1P NO Relay 3 5 RL1 B ME19 009HS2 1P NO Relay 1 2 RL1 A ME19 009HS2 1P NO Relay 1 2 RL2 A ME19 009HS2 1P NO Relay MAINS ON OFF RELAY MAINS INRUSH RELAY J8 LIVE NEUTRAL SCREEN F1 T15AH 20mm for 230V T25A 32mm for 115V Slow Blow Fuse F2 T2AL for 230V T4AL for 115V Slow Blow Fuse LIVE NEUTRAL R65 22R 10W WireWound R64 22R 10W WireWound C58 10nF 300V X1 Mains Rated Safety Cri...

Page 18: ...00V Polypropylene C84 100uF 35V NP Electrolytic C93 10uF 35V NP Electrolytic 3 dB 2 34 MHz 3 dB 0 072 Hz 3 dB 33 9 MHz NOT USED BAL INPUT UNBAL INPUT BAL UNBAL INPUT SWITCH SW2 1 c o right angle PCB mount 2 3 1 8 4 U14 A NE5532D 6 5 7 U14 B NE5532D 2 3 1 8 4 U13 A NE5532D 6 5 7 U13 B NE5532D 2 3 1 8 4 U11 A NE5532D 6 5 7 U11 B NE5532D OPAMP DECOUPLE 15V 15V C83 47nF 63V Met Polyester C81 47nF 63V ...

Page 19: ... dB 33 9 MHz BAL INPUT BAL UNBAL INPUT SWITCH SW2 Toggle switch 2 3 1 8 4 U14 A NE5532D 6 5 7 U14 B NE5532D 2 3 1 8 4 U13 A NE5532D 6 5 7 U13 B NE5532D 2 3 1 8 4 U11 A NE5532D 6 5 7 U11 B NE5532D OPAMP DECOUPLE 15V 15V C83 47nF 63V Met Polyester C81 47nF 63V Met Polyester C72 47nF 63V Met Polyester C69 47nF 63V Met Polyester C75 47nF 63V Met Polyester C78 47nF 63V Met Polyester R88 1k 0805 Thick F...

Page 20: ...17 RC7 RX DT 18 VSS 19 VDD 20 RB0 INT 21 RB1 22 RB2 23 RB3 PGM 24 RB4 25 RB5 26 RB6 PGC 27 RB7 PGD 28 U15 Programmed with AP22264 x D12 BAS16 Signal Diode SM R101 10K 0805 Thick Film R100 100K 0805 Thick Film 5V R99 2K2 0805 Thick Film R102 47K 0805 Thick Film R98 4K7 0805 Thick Film C59 0805 NP0 Ceramic D9 5 1V 250mW Zener SM C61 X7R 0805 C62 0805 Ceramic C63 100pF 50V C64 100pF 50V 0805 NP0 Cera...

Page 21: ...amic R51 220R 0805 Thick Film R62 47R 0805 Thick Film C32 100nF 50V R45 220R 0805 Thick Film R48 10K 0805 Thick Film R47 10K 0805 Thick Film R52 10K 0805 Thick Film Q2 BC846 NPN Small Signal R49 100R 0805 Thick Film C26 100nF 50V R46 2R2 0805 Thick Film C28 100nF 50V MCLR Vpp 1 RA0 AN0 2 RA1 AN1 3 RA2 AN2 4 RA3 AN3 Vref 5 RA4 T0CKI 6 RA5 AN4 SS 7 VSS 8 OSC1 CLKIN 9 OSC2 CLKOUT 10 RC0 T0OSO T1CLI 1...

Page 22: ...tic 3 dB 2 34 MHz 3 dB 0 072 Hz 3 dB 33 9 MHz OPAMP DECOUPLE BAL INPUT UNBAL INPUT BAL UNBAL INPUT SWITCH SW1 1 c o right angle PCB mount 2 3 1 8 4 U5 A NE5532D 6 5 7 U5 B NE5532D 2 3 1 8 4 U3 A NE5532D 6 5 7 U3 B NE5532D 2 3 1 8 4 U2 A NE5532D 6 5 7 U2 B NE5532D R33 100K 0805 Thick Film R31 100R 0805 Thick Film R32 22K 0805 Thick Film R41 680R 1 8W Metal Film C9 47nF 63V Met Polyester C6 47nF 63V...

Page 23: ...INPUT BAL UNBAL INPUT SWITCH SW1 Toggle switch 2 3 1 8 4 U5 A NE5532D 6 5 7 U5 B NE5532D 2 3 1 8 4 U3 A NE5532D 6 5 7 U3 B NE5532D 2 3 1 8 4 U2 A NE5532D 6 5 7 U2 B NE5532D R33 22K 0805 Thick Film R31 1k 0805 Thick Film R32 22K 0805 Thick Film C9 47nF 63V Met Polyester C6 47nF 63V Met Polyester C12 47nF 63V Met Polyester C15 47nF 63V Met Polyester LEFT NORMAL LEFT INVERTED RIGHT NORMAL TO RIGHT PO...

Page 24: ...Cambridge Audio Azur 840W Power Amp Input PCB Layout 24 ...

Page 25: ... 49 C 48 R 18 R 42 R 32 C 20 C 18 C 19 R 31 R 33 R 16 R 19 R 20 R 17 R 15 C9 C6 C8 C7 R 21 R 22 C 10 C5 R 26 R 23 U2 R 12 R 10 R 13 R 14 R 11 R 27 C 12 C 15 C 11 C 16 R 25 R 24 C 13 C 14 R9 R8 U 14 R 70 C 75 C 78 U 13 R 76 C 72 C 69 C 86 C 87 C 100 C 88 C 89 C 101 U 11 C 85 C 84 C 80 C 95 C 94 R 87 C 83 C 81 C 82 R 88 R 86 CN3 F3 U7 C N23 U 10 U 12 U4 1 F1 R 44 CN7 C N13 R 29 C 47 C 93 C 44 C 45 C...

Page 26: ...3 1 805 29 22K 0204 Melf 1 R28 1 204 30 22K 0805 Thick Film 2 R32 R87 1 805 31 22K 1 8W Metal Film 4 R34 R39 R95 R97 1 7 5mm Pitch 32 22K 1 8W Metal Film 2 R42 R91 1 7 5mm Pitch 33 22K 0805 Thick Film 1 R86 1 805 34 47K 0805 Thick Film 1 R102 1 805 35 100K 1 4W Metal Film 1 R5 1 10mm Pitch 36 100K 0805 Thick Film 1 R100 1 805 37 220K 1 8W Metal Film 6 R36 R37 R43 R90 R92 R93 1 7 5mm Pitch 38 270k ...

Page 27: ...50mW Zener SM 1 D9 BZX84C5V1 SOT23 81 IR Demodulator 1 D18 MV50640 82 3 6V 250mW Zener SM 1 D19 BZX84C3V6 SOT23 83 T15AH 20mm for 230V T25A 32mm for 115V Slow Blow Fuse 1 F1 OGD 6 3x32mm 84 T2AL for 230V T4AL for 115V Slow Blow Fuse 1 F2 20mm 85 Fuse Holder Base 1 F2 PTF78 or equivalent 20mm Pitch 4031 780000E000 86 Fuse Holder Cover 1 F2 PTF78 or equivalent 20mm Pitch 4034 780000E000 87 60VDC 0 1...

Page 28: ...2K2 1 4W Metal Film R4 100R 1 4W Metal Film R5 100R 1 4W Metal Film R14 100R 1 4W Metal Film R81 2K2 1 4W Metal Film R2 100R 1 4W Metal Film R56 2K2 1 4W Metal Film R57 22K 1 4W Metal Film R67 22K 1 4W Metal Film R3 68R 1 4W Metal Film R10 8K2 1 4W Metal Film R12 56R 1 4W Metal Film R11 2K4 1 4W Metal Film R6 68R 1 4W Metal Film R7 68R 1 4W Metal Film R8 2K2 1 4W Metal Film R16 10K 1 4W Metal Film...

Page 29: ...Vrms 5 5A 5 5A 100 mA J4 66V MAIN TRANSFORMER TO POWER AMP SUPPLY RIGHT GREEN 45V IN 45V IN 47V IN 0V IN BRIDGE RECTIFIER RESERVOIR CAPACITORS C11 1000uF 80V Electrolytic J7 J8 J9 J10 AC AC V V BLUE VIOLET GREY WHITE C26 10nF 300V X1 Mains Rated C25 10nF 300V X1 Mains Rated C24 10nF 300V X1 Mains Rated F1 T1AL Slow Blow Fuse F2 T10AL Slow Blow Fuse F3 T10AL Slow Blow Fuse D15 1N4004 Rectifier D22 ...

Page 30: ...Cambridge Audio Azur 840W Power Amp Power Amp PCB Layout 30 ...

Page 31: ...1 15K 1206 Thick Film 1 R39 1 32 16K 1 4W Metal Film 1 R49 1 33 22K 1 4W Metal Film 3 R15 R57 R67 1 34 22K 1206 Thick Film 1 4W 2 R48 R84 1 35 24K 1 8W Metal Film 2 R54 R55 1 36 33K 1206 Thick Film 1 R85 1 37 47K 1206 Thick Film 1 4W 5 R35 R43 R45 R65 1 38 47K 1 4W Metal Film 1 R50 1 39 51K 1 8W Metal Film 2 R72 R73 1 40 82K 1206 Thick Film 1 4W 1 R47 1 41 360K 1206 Thick Film 2 R78 R79 1 42 1M 12...

Page 32: ...NPN Signal 2 Q11 Q26 BC337 25 1300 337000 100 PY214 88 230V 17A NPN Power 4 Q13 Q14 Q32 Q33 2SC3264Y 1300 232649E900 Torque to 1 1Nm PY1147 89 230V 17A PNP Power 6 Q15 Q17 Q34 Q36 2SA1295Y 1301 212959E900 Torque to 1 1Nm PY1149 90 No Fit 1 Q30 91 45V 500mA NPN Signal 1 Q31 BC817 25 1300 817000 500 92 See AP22469 x Assy 2 Busbar assy type 2 1 BBA1 0 5mm thick copper 93 See AP21165 x assy 1 Busbar a...

Page 33: ...CONTROL BUS IN CONTROL BUS OUT LOGIC GND CHASSIS GND EMC EMC TO INPUT PCB 1 2 3 4 5 6 7 8 9 10 CN1 10 Way FFC Connector R1 2R2 1 4W Metal Film C2 100nF 50V Mono Ceramic C3 1nF 50V Ceramic C4 10nF 50V Ceramic CN3 CKX 3 5 12 3 5mm Jack CN2 CKX 3 5 12 3 5mm Jack CN4 CKX 3 5 12 3 5mm Jack 1 2 5 CN5 A AV2 8 4 14 EC 3 4 5 CN5 B AV2 8 4 14 EC 2 1 3 2 1 3 2 1 3 C1 100pF 500V Y5P Ceramic SC1 M3x5mm MC MECH...

Page 34: ...Cambridge Audio Azur 840W Power Amp Control Bus PCB Schematic 34 ...

Page 35: ...V Mono Ceramic 1 C2 10 5mm Pitch 1100 104043 000 6 10 Way FFC Connector 1 CN1 D100 SSV 10 Standard 2301 010501E001 7 3 5mm Jack 3 CN2 CN4 CKX 3 5 12 Through Hole 2320 003911E007 8 Horizontal Gold Plated RCA 1 CN5 AV2 8 4 14 EC Through Hole 2330 004911E004 Orange Inserts with EMC CONNECTORS CAPACITORS RESISTORS Cambridge Audio Azur 840W Control Bus PCB AP20565 3 Note resistors capacitors and other ...

Page 36: ... Ceramic 1 C2 10 5mm Pitch 1100 104043 000 6 10 Way Straight Header 1 CN1 JST B10B PH KS 2mm Pitch 7 3 5mm Jack 3 CN2 CN4 ZuanBao CKX 3 5 12 Through Hole 2320 003911E007 8 Horizontal Gold Plated RCA 1 CN5 ZuanBAo AV2 8 4 14 EC Through Hole 2330 004911E004 Orange Inserts with EMC Cambridge Audio Azur 840W Control Bus PCB BOM AP20565 4 RESISTORS CAPACITORS CONNECTORS Note resistors ecapacitors and o...

Page 37: ... MONO SWITCH BRIDGING SWITCH RIGHT NORMAL TO RIGHT POWER AMP MONO SWITCH BRIDGING SWITCH STEREO MONO BRIDGE MONO BRIDGE LOGIC GND LOGIC GND TO INPUT PCB 1 2 3 4 5 6 7 8 CN1 8 Way FFC Connector LOGIC GND SW1 2P2T Slide Switch SW2 2P2T Slide Switch WHEN MONO SWITCH IS IN STEREO POSITION BRIDGING SWITCH HAS NO EFFECT MECHANICAL PARTS BRK1 ALTO right angle bracket BRK2 ALTO right angle bracket SC1 M3x...

Page 38: ...Cambridge Audio Azur 840W Power Amp Mode Switch PCB Layout 38 ...

Page 39: ...Cambridge Audio Azur 840W Power Amplifier Mode Switch PCB Layout Revision 1 39 ...

Page 40: ...ctor 1 CN1 D100 SSV 08 Standard 2301 008501E001 SWITCHES 2 2P2T Slide Switch 2 SW1 SW2 SS004 P022BY PF8 PCB Mount 2403 020200E014 PY1477 Cambridge Audio Azur 840W Mode Switch PCB AP20569 3 Note resistors capacitors and other generic components are not usually stocked by the manufacturer Please obtain these locally 40 ...

Page 41: ... B8B PH KS 2mm Pitch 2300 008000 000 2 2P2T Slide Switch 2 SW1 SW2 Well Long SS004 P022BY PF8 PCB Mount 2403 020200E014 Cambridge Audio Azur 840W Mode Switch PCB BOM AP20569 4 CONNECTORS SWITCHES Note resistors capacitors and other generic electronic components are not usually stocked by the manufacturer Please obtain these locally 41 ...

Page 42: ...ircuit Board COPYRIGHT The Audio Partnership Gallery Court Hankey Place LONDON SE1 4BB Tel 44 0 171 940 2200 Fax 44 0 171 940 2233 BLUE P1 5V P2 LED P3 SWITCH ON STBY SWITCH SW1 1102 1M D1 Blue Azur LED CABLE COLOURS ORANGE BROWN RED P1 1 P2 2 P3 3 CA1 Yanion 42 ...

Page 43: ...Cambridge Audio Azur 840W Power Amp On Standby Switch PCB Layout 43 ...

Page 44: ...4mm spacing LED base to PCB 2 Tactile 1 SW1 1102 1M Through Hole 4 3mm Height Tact Switch 3 3 way JST cable 1 CA1 AP218071 DIODES SWITCHES MISCELLANEOUS Cambridge Audio Azur 840W On Standby Switch PCB AP20573 4 Note resistors capacitors and other generic components are not usually stocked by the manufactuere Please obtain these locally 44 ...

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