Cambridge-540AV2-int-sm维修电路原理图.pdf

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1、 Gallery Court Hankey Place London SE1 4BB UK Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233 540A V2 Issue Date: 31st March 2006 _ SERVICE MANUAL _ SPECIFICATIONS: Power Output 60W (into 8) 90W (into 4) THD (unweighted) 0.002% 1kHz, of rated power 0.070% 20Hz 20kHz, of rated power 85dB Input impe

2、dances 47kohms Power Amp damping factor 100 Max power consumption 650w Min/On power consumption 35w (no signal) Standby power consumption 10w Bass / Treble controls Shelving, ultimate boost/cut + /-7.5dB 20Hz and 20kHz Dimensions 100 x 430 x 310mm (3.9 x 16.9 x 12.2”) Weight 7.4kg (16.3Lbs) AP19973/

3、1 1RadioFans.CN 收音机爱 好者资料库 540A V2.0 SERVICE MANUAL TABLE OF CONTENTS Safety Precautions & Important Notes 3 Exploded Diagram 4 Input PCB Schematic (Power Supply) 5 Input PCB Schematic (Buffers and Switches) 6 Input PCB Schematic (Tone Control) 7 Input PCB Schematic (Protection Circuitry) 8 Input PC

4、B Schematic (Headphone Driver) 9 Input PCB Layout (Top Side) 10 Input PCB Layout (Bottom Side) 11 Input PCB Assembly BOM 12-13 Voltage Select Switch PCB Schematic 14 Voltage Select PCB Layout (Top Side) 15 Voltage Select PCB Layout (Bottom Side) 16 Voltage Select PCB Assembly BOM 17 Mains PCB Schema

5、tic 18 Front Panel PCB Schematic 19 Mains & Front Panel PCB Layout (Top Side) 20 Mains & Front Panel PCB Layout (Bottom Side) 21 Mains & Front Panel PCB Assembly BOM 22 Amp PCB Schematic (Right Channel) 23 Amp PCB Schematic (Protection) 24 Amp PCB Schematic (Power Amp) 25 Amp PCB Schematic (Left Cha

6、nnel) 26 Amp PCB Layout (Top Side) 27 Amp PCB Layout (Bottom Side) 28 Amp PCB Assembly BOM 29-31 Abus Module PCB Schematic 32 Abus Module PCB Layout (Top Side) 33 Abus Module PCB Layout (Bottom Side) 34 Abus PCB Assembly BOM 35 IC Pin Layout Details 36-42 2RadioFans.CN 收音机爱 好者资料库SAFETY PRECAUTIONS &

7、 IMPORTANT NOTES 1. Check that the rear of the product indicates the correct supply voltage for your 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 ma

8、y 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 ap

9、pliance. 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

10、 parts. 5. Any unauthorised design alterations or additions will void the manufacturers 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

11、 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 32117251018 (a)819 (b)202216122361

12、4312424515119137Drawing ref AP Part Factory part numberDescription1PY6876560-150001-000AVOLUME KNOB ALUMINIUM SKIN AP133601 SILVER (use with PY680+PY681)1PY6866560-150001-000VOLUME KNOB ALUMINIUM SKIN AP133601 BLACK (use with PY680+PY681)2PY5926050-150004-002-02Azur-640A SELECTOR KNOB SILVER 2PY5936

13、050-150004-002-01Azur-640A SELECTOR KNOB BLACK3PY7196050-150012-000-017MM TAC SWITCH BUTTON (BLACK)3PY7206050-150012-000A017MM TAC SWITCH BUTTON (SILVER)46050-150013-000A017MM PUSH SWITCH BUTTON SILVER FOR Azur-640A46050-150013-0007MM PUSH SWITCH BUTTON BLACK FOR Azur-640A56050-117821-000-02Azur-640

14、A CONTROL BOX BUTTON SILVER 56050-117821-000-01Azur-640A CONTROL BOX BUTTON BLACK6PY5416050-150010-000A01PLASTIC FOOT SILVER6PY5316050-150010-000PLASTIC FOOT BLACK7PY5446600-170100-000FOOT PAD FOR AZUR RANGE8PY10583200-076771E000115/230V 30V*2/3A 17V*2/0.4A Azur-540A V2 AP1757049PY10326550-150017-00

15、1-02LARGER SIDE PANEL SILVER PAINTED9PY10336550-150017-001-01LARGER SIDE PANEL BLACK PAINTED10PY10346550-150037-000-02V2 AMP TOP PANEL SILVER PAINTED10PY10356550-150037-000-01V2 AMP TOP PANEL BLACK PAINTED11PY10368554-015010-701LARGER SUPPORT FRONT ASSY (WITH TWO BRASS INSERTS)12PY10378554-015020-70

16、1LARGER SUPPORT REAR ASSY (WITH TWO BRASS INSERTS)13PY10598554-015001-302Azur-540A V2-Silver AMP FRONT PANEL ASSY13PY10608554-015011-302Azur-540A V2-Black AMP FRONT PANEL ASSY14PY10409464-015002-041Azur-640A/540A V2 PIC CONTROL BOARD ASSY REV A15PY10419464-015002-171Azur-640A/540A V2 POWER SWITCH PC

17、B REV APY10429464-015002-191Azur-640A/540A V2 LED PCB ASSY REV A16PY10619454-015002-071Azur-540A V2 POWER INPUT BOARD ASSY REV A17PY10629454-015002-091Azur-540A V2 AMP POWER PCB ASSY REV A18PY10459464-015002-001640A/540A V2 PROTECTION CIRCUITRY PCB-A ASSY REV A19PY10469464-015002-101640A/540A V2 PRO

18、TECTION CIRCUITRY PCB-B ASSY REV A20PY10479464-015002-331Azur-640A/540A A-Bus hub PCB ASSY REV A21PY10489464-015002-341Azur-640A/540A V2 INPUT PCB ASSY REV A22PY10499464-015002-541Azur-540A/640A V2 SPEAKER CONN. BOARD ASSY REV A23PY9449805-054010-001AZUR-540A/C,640A/C V2.0 REMOTE CONTROL ASSY REV AP

19、Y9456040-150002-000-01BATTERY-DOOR FOR Azur R/C BLACK PAINTED 24PY10566550-150021E001A03AZUR 540A V2.0 FRONT PANEL-Silver (Metal only)24PY10546550-150021E001-03 AZUR 540A V2.0 FRONT PANEL-Black (Metal only)25PY5157002-608010-001Screw M2.6 x 8 M/C Torx Recessed 1/K Head Black25PY5167002-608010-006Scr

20、ew M2.6 x 8 M/C Torx Recessed 1/K Head En-PlatedPY10515100-641500E300AZUR 540A/640A V2 USER S MANUAL (AP183031)To enhance viewing, please print to A34Cambridge Audio Azur 540A V2.0 AmplifierAP17649/5 Input PCB Schematic (Power Supply)VI1VO3GND2U3L7805C2647u 16VVI1VO3GND2U4L7815VI2VO3GND1U2L7915+5VDG

21、NDD21N4004D31N4004D41N4004D51N4004C35100N 100V X7RC37100N 100V X7RC27100N 50V X7RC25100N 50V X7RC3147N PE 63VC3447N PE 63VC3047N PE 63VC2947N PE 63VC28100U 25V EL 105C98100U 25V EL 105GENERAL NOTES1.2.3.4.5.123CN83,96MM 3W ST HEADERC36100N 100V X7RUnreg for RelaysLK40LK10MMMain+15V-15VLK86LINK10MMLK

22、83LINK10MMLK79LINK10MMLK75LINK10MMLK71LINK10MMLK63LINK10MMLK67LINK10MM-15V-15VLK82LINK10MMLK78LINK10MMLK74LINK10MMLK70LINK10MMLK64LINK10MMLK66LINK10MM+15V+15VLK88LINK10MMLK47LINK10MMLK44LINK10MMLK41LINK15MMLK42LINK15MM+15V+15V-15V-15VLK13LINK10MMLK6LINK15MMLK7LINK15MMLK12LINK15MMLK17LINK15MMLK23LINK

23、10MMLK26LINK10MMLK28LINK10MMLK22LINK10MMLK29LINK10MMLK30LINK10MMLK32LINK15MMLK31LINK10MMLK34LINK15MMC321000U 35V ELC331000U 35V ELLK50LINK15MMLK48LINK15MMAC SenseR554k7C381U 25VD11N4004R564k7Q7BC327R1144k7+5VPIC Standby RelayStandby RelayMainLK98LINK10MMJ7TERMINALMainMainR e v 2 : D 8 R e mo v e d ,

24、 L K 1 0 5 a n d 1 0 6 a d d e d .LK105LK10MMLK106LK10MMD91N4004D101N4004R e v 4 : D 9 a n d D 1 0 a d d e d .C381U 25VR564k7Q7BC327R1144k7+5VPIC Standby RelayStandby RelayLK105LK10MMLK106LK10MMD81N4148R e v is io n 186-756-8687998To enhance viewing, please print to A35Cambridge Audio Azur 540A V2.0

25、 AmplifierAP17649/5 Input PCB Schematic (Buffer and Switches)Abus GNDGENERAL NOTES1.2.3.4.5.23184U9:ANE5532NR112220R 1/8WR111220R 1/8W657U9:BNE5532N23184U12:ANE5532N657U12:BNE5532N-15V+15V+15V-15V+15V-15VU6U6SW GNDLCh InRCh InLCh OutRCh OutLRVss1L-S12L-S23L-S34L-COM15L-S46L-S57L-S68L-COM29L-S710L-S8

26、11L-COM312ST13GND14Vdd28R-S127R-S226R-S325R-COM124R-S423R-S522R-S621R-COM220R-S719R-S818R-COM317DATA16CLK15U11TC9163AF6CN14:DAV4-8,4-93CN13:BAV4-8,4-96CN13:DAV4-8,4-9A u xC DD A BD V DMDT O 1T O 2T MP O3CN12:BAV4-8,4-96CN12:DAV4-8,4-93CN15:BAV4-8,4-9PreOut LeftPreOut RightPreOut LeftPreOut Right6CN1

27、5:DAV4-8,4-912CN16:AAV2-8,4-9SW GND3CN16:BAV2-8,4-923184U14:ANE5532N-15V+15VC6747n 63V PEC6847n 63V PER9647k 1/8W23184U13:ANE5532NR9347k 1/8W23184U15:ANE5532N-15V+15VC7147n 63V PEC7247n 63V PER8947k 1/8W23184U16:ANE5532NR8547k 1/8W23184U17:ANE5532N-15V+15VC7647n 63V PEC7547n 63V PER8147k 1/8W23184U1

28、8:ANE5532NR7347k 1/8W657U13:BNE5532N-15V+15VC7047n 63V PEC6947n 63V PER9147k 1/8W657U14:BNE5532NR9547k 1/8W657U16:BNE5532N-15VC7447n 63V PEC7347n 63V PER8347k 1/8W657U15:BNE5532NR8747k 1/8W657U18:BNE5532N-15V+15VC4447n 63V PEC4547n 63V PER11047k 1/8W657U17:BNE5532NR7947k 1/8WC9147N PE 63VC9247N PE 6

29、3VC4147N 63V PEC4247N 63V PER1041k8R1051k8R1031k8R1021k8C9010P 50V NPOC9310P 50V NPOR99100RR98100RC88100N 50V X7RC89100N 50V X7RR1091k 1/8WR781k 1/8WR821k 1/8WR861k 1/8WR901k 1/8WR941k 1/8WR971k 1/8WR921k 1/8WR881k 1/8WR841k 1/8WR801k 1/8WR721k 1/8WC83100p 50V NP0C48100p 50V NP0C53100p 50V NP0C57100

30、p 50V NP0C61100p 50V NP0C65100p 50V NP0C66100p 50V NP0C62100p 50V NP0C58100p 50V NP0C54100p 50V NP0C50100p 50V NP0C46100p 50V NP0R75220R 1/8WR76220R 1/8WR74220R 1/8WR77220R 1/8W3CN14:BAV4-8,4-912CN14:AAV4-8,4-945CN14:CAV4-8,4-912CN13:AAV4-8,4-945CN13:CAV4-8,4-912CN12:AAV4-8,4-945CN12:CAV4-8,4-912CN1

31、5:AAV4-8,4-945CN15:CAV4-8,4-9LK60LINK15MMLK51LK15MM+15VC6410U NP 16VC6310U NP 16VC6010U NP 16VC5910U NP 16VC5610U NP 16VC5510U NP 16VC5210U NP 16VC5110U NP 16VC4910U NP 16VC4710U NP 16VC8110U NP 16VC8210U NP 16VLK62LK10MMLK57LK10MMLK56LK15MMLK53LK15MMLK55LK10MMLK54LK10MMLK92LK10MMLK90LK15MMLK91LK15M

32、MLK9LK15MMLK8LK15MMU6U6LK89LK15MMLK99LK15MMLK97LK10MMLK93LK10MMLK94LK10MMR100470kR101470kLK95LK10MMLK96LINK15MMLCh HP OutRCh HP OutLK5LK15MMLK43LK15MM123CN102,5MM 3W ST HEADERABUS Audio OutR106560RR107560R1234567CN52,5MM 7W ST HEADERTo PICC l o c kD a t aS t r o b eD G n d f r o m P I CC o n t r o l

33、 B u s I RA B U S I RA mp Mu t eC o n t r o l B u s I RA B U S I RA B U S S t a t u sR C hG N DL C h12345CN92,5MM 5W ST HEADERABUS Control SignalsA B U S P C B D G n dLK101LK10MMC871N 50V NP0J1TERMINALR11347R no stuffC861N 50V NP0 no stuffJ2TERMINALC80100p 50V NP0C78100p 50V NP0U6U6C77100p 50V NP0C7

34、9100p 50V NP0U6U6C85100P 50V NP0C84100P 50V NP023184U10:ANE5532N-15V+15VC4047n 63V PEC3947n 63V PEU6U6657U10:BNE5532NU6U6U6LK49LK15MMLK52LINK15MMLK58LK10MMLK61LK10MMLK59LINK15MMA B U S P C B + 5 V+5VOLTSLK100LK15MMLK85LK10MMLK87LK10MMLK68LK10MMLK69LK10MMLK73LK10MMLK77LK10MMLK81LK10MMLK84LK10MMLK80LK

35、10MMLK76LK10MMLK72LK10MMLK65LK10MMR581k8R591k8J4TERMINALJ5TERMINALJ6TERMINALJ8TERMINALR613k6U6R603k6U6U6R e v 1 : R e s i s t o r s R 7 2 , 7 8 , 8 0 , 8 2 , 8 4 , 8 6 , 8 8 , 9 0 , 9 2 , 9 4 , 9 7 , 1 0 9 c h a n g e d t o 7 5 RG N D L i n k s o n u n d e r s i d eAmp MuteStandby RelayR e v 4 : R e

36、 s i s t o r s R 7 2 , 7 8 , 8 0 , 8 2 , 8 4 , 8 6 , 8 8 , 9 0 , 9 2 , 9 4 , 9 7 , 1 0 9 c h a n g e d t o 1 k86-756-8687998To enhance viewing, please print to A36Cambridge Audio Azur 540A V2.0 AmplifierAP17649/5 Input PCB Schematic (Tone Control)GENERAL NOTES1.2.3.4.5.R204k7R231k1R241k1R172k2R192k2

37、SW2:ASW-DPDTTone DefeatOut-15V+15VR362k2R352k2R224k7R261k1R251k1R182k2R212k2SW2:BSW-DPDTTone Defeat-15V+15VR372k2R382k2U2outOut-15V+15VU2U4U4OutOutU2+15V-15V23184U6:ANE5532N657U6:BNE5532N23184U5:ANE5532N657U5:BNE5532NU2657U7:BNE5532N23184U7:ANE5532NRCh InLCh InRCh OutLCh OutU2U4U4R15150kR14150kR1615

38、0kR13150k465VR3:B20K MOTORISED DUAL POT132VR3:A20K MOTORISED DUAL POT465VR4:BMN20K BALANCE132VR4:AMN20K BALANCE132VR2:AB5K LINEAR465VR2:BB5K LINEAR132VR1:AB5K LINEAR465VR1:BB5K LINEAR123456CN3H6 2.54mmTO POWER AMPC547U NP 16VC1147U NP 16VC447U NP 16VC747U NP 16VRCh OutLCh OutC10347N 63V PEC10247N 63

39、V PEC1447N 63V PEC1647N 63V PEC947N 63V PEC1047N 63V PEC1810P 50V NPOC2310P 50V NPOC810P 50V NPOC1310P 50V NPOC191N5 63V PEC201N5 63V PEC22680N 63V PEC21680N 63V PELK37LK15MMU4LK25LK10MMLK24LK10MMLK21LK15MMLK19LK15MMR3322RR3422RLK35LINK15MMLK20LK15MMLK27LK10MMLK18LK15MMR2922kR3122kOutOutC610N PP 63V

40、C1210N PP 63VC310N PP 63VC2410N PP 63VC10410U NP 16VC10110U NP 16VC10510N PP 63VC10010N PP 63VLK36LINK15MMR321k5R303kOutR271k5R283kOutC10610P 50V NPOC9910P 50V NPOC15100U 25V ELC17100U 25V ELLK33LK15MMJ3TERMINAL12CN172MM 2W ST HEADER345RL1:BME2-5S678RL1:CME2-5S12RL1:AME2-5S+5VOLTSD81N4004Q9MPSA14R12

41、210kR1231kMAINAmp MuteR e v 2 : R L 1 , D 8 , Q 9 , R 1 2 2 , R 1 2 3 , L K 1 0 4 , 1 0 7 - 1 0 9 a d d e d .LK16LK10MMLK104LK10MMLK107LK10MMLK108LK15MMLK109LK15MM86-756-8687998To enhance viewing, please print to A37Cambridge Audio Azur 540A V2.0 AmplifierAP17649/5 Input PCB Schematic (Protection Ci

42、rcuitry)+5VoltsR661kFor 1mAR6410kR67100RR652R7DGND32184U8:ALM393D71N4148+5VSpeaker short circuit testerR694k7(Open Collector Output)Senses a DC resistance of 2 ohms or lessD61N4004PIC VI/ShortC43100N 50V X7RSpeaker TestDGND+5VSW1:BSW-DPDTTAPESPEAKER B SWITCHING (for relay)Speaker TestSpeaker A Relay

43、Unreg for Relays123456CN112,5MM 6W ST HEADERTo Speaker PCB CN1PIC Standby RelayUnreg for RelaysDGND123CN72,5MM 3W ST HEADERR57220R 2W CarbonR108220R 2W CarbonPIC VI/ShortPIC DCPIC CLIPPIC TempSpeaker A RelayPIC Standby Relay12345678CN62,5MM 8W ST HEADERTo PICGENERAL NOTES1.2.3.4.5.Ma i n s P C B C o

44、 n t r o lS p e a k e r P C B C o n t r o lP I C P r o t e c t i o n s i g n a l sS p e a k e r C a b l e S h o r t C i r c u i t D e t e c t o rLK103LK10MMLK14LK10MMLK15LK10MM567U8:BLM393LK102LK10LINK15MMLK46LK11LINK15MMLK45LK10MM12345CN42,5MM 5W ST HEADERDGNDPIC VI/ShortPIC DCPIC CLIPTemp SenseR11

45、610kR11510kDGND+5VPIC TempR63910R910 / (910 + 10k) with ZP221A501Evoltage gives 100deg C cutout+5VoltsTemp SenseR714k7R7010kR1174k7Open Collector OutputQ8BC337LK39LK10MMLK38R68100kR62no stuffC108100N 50V X7RC107100U 16V ELDGND+5VR e v 3 : R 6 5 C h a n g e d f r o m 1 0 R t o 8 R 2R e v 4 : R 6 5 C

46、h a n g e d f r o m 8 R 2 t o 4 R 7R e v 5 : R 6 5 C h a n g e d f r o m 4 R 7 t o 2 R 786-756-8687998To enhance viewing, please print to A38Cambridge Audio Azur 540A V2.0 AmplifierAP17649/5 Input PCB Schematic (Headphone Driver)Main+15V-15VR5410RR5310R657U1:BNE5532NR81RR61RR412k7R403k3R43560RR42560

47、RR395k6R75k6Q6BD139Q5BD139Q4BD140R9180RMainRSW1RSW2RLGND23178CN1HEADPHONE JACKMainC9647N 63V PEC9547N 63V PE23184U1:ANE5532NR31RR11RR462k7R453k3R48560RR47560RR445k6R25k6Q3BD139Q2BD139Q1BD140R4180RMainGENERAL NOTES1.2.3.4.5.R1110R 2WR1210R 2WRCh HP OutR52100RR51No StuffMainLCh HP OutR49100RR50No Stuf

48、fMainC97470U 25V ELC94470U 25V ELR5360RR10360RC210N 63V PEC110N 63V PEMainLK2LINK10MMLK1LINK10MMLK3LINK10MMLK4LINK10MM12CN22,5MM 2W ST HEADERR1181k5R1193kR1201k5R1213kMainMainR e v 1 : R e s is t o r s R 1 1 8 - 1 2 1 a d d e d( R c h O u t )( L c h O u t )R e v 2 : R e s is t o r s R 1 1 , R 1 2 ,

49、R 1 1 8 - 1 2 1 v a lu e s c h a n g e d .86-756-8687998To enhance viewing, please print to A39Cambridge Audio Azur 540A V2.0 AmplifierAP17649/4 Input PCB Board Layout (Top Side)Super Hi-Fidelity Ultra Linear Preamp Stage86-756-8687998To enhance viewing, please print to A310Cambridge Audio Azur 540A

50、 V2.0 AmplifierAP17649/4 Input PCB Board Layout (Bottom Side)86-756-8687998To enhance viewing, please print to A311AP17652/5AP Part NoValueDescription/TypeFactory Part No.QtyComponent IdentNotesRESISTORS1R0.25W metal film4R1, 3, 6, 8.2R70.25W metal film1R65See Input Schematic (Protection Circuitry)1